From 377eff58f2e5c06e92619c353146324081b3b8cd Mon Sep 17 00:00:00 2001
From: Hans Hagen <pragma@wxs.nl>
Date: Tue, 15 Dec 2020 10:48:33 +0100
Subject: 2020-12-15 10:12:00
---
metapost/context/base/mpiv/mp-cont.mpiv | 2 +-
metapost/context/base/mpiv/mp-core.mpiv | 1558 -----------
metapost/context/base/mpiv/mp-tool.mpiv | 9 +
metapost/context/base/mpxl/metafun.mpxl | 47 +-
metapost/context/base/mpxl/minifun.mpxl | 15 +-
metapost/context/base/mpxl/mp-abck.mpxl | 291 ++
metapost/context/base/mpxl/mp-apos.mpxl | 104 +
metapost/context/base/mpxl/mp-base.mpxl | 1047 ++++++++
metapost/context/base/mpxl/mp-blob.mpxl | 118 +
metapost/context/base/mpxl/mp-butt.mpxl | 77 +
metapost/context/base/mpxl/mp-cont.mpxl | 230 +-
metapost/context/base/mpxl/mp-figs.mpxl | 47 +
metapost/context/base/mpxl/mp-form.mpxl | 28 +
metapost/context/base/mpxl/mp-func.mpxl | 87 +
metapost/context/base/mpxl/mp-grid.mpxl | 142 +
metapost/context/base/mpxl/mp-grph.mpxl | 207 ++
metapost/context/base/mpxl/mp-lmtx.mpxl | 72 +-
metapost/context/base/mpxl/mp-luas.mpxl | 120 +-
metapost/context/base/mpxl/mp-math.mpxl | 228 +-
metapost/context/base/mpxl/mp-mlib.mpxl | 188 +-
metapost/context/base/mpxl/mp-node.mpxl | 275 ++
metapost/context/base/mpxl/mp-page.mpxl | 221 +-
metapost/context/base/mpxl/mp-shap.mpxl | 228 ++
metapost/context/base/mpxl/mp-tool.mpxl | 3825 +++++++++++++++++++++++++++
metapost/context/fonts/mpiv/bidi-symbols.mp | 4 +
metapost/context/fonts/mpiv/demo-symbols.mp | 3 +
26 files changed, 7168 insertions(+), 2005 deletions(-)
delete mode 100644 metapost/context/base/mpiv/mp-core.mpiv
create mode 100644 metapost/context/base/mpxl/mp-abck.mpxl
create mode 100644 metapost/context/base/mpxl/mp-apos.mpxl
create mode 100644 metapost/context/base/mpxl/mp-base.mpxl
create mode 100644 metapost/context/base/mpxl/mp-blob.mpxl
create mode 100644 metapost/context/base/mpxl/mp-butt.mpxl
create mode 100644 metapost/context/base/mpxl/mp-figs.mpxl
create mode 100644 metapost/context/base/mpxl/mp-form.mpxl
create mode 100644 metapost/context/base/mpxl/mp-func.mpxl
create mode 100644 metapost/context/base/mpxl/mp-grid.mpxl
create mode 100644 metapost/context/base/mpxl/mp-grph.mpxl
create mode 100644 metapost/context/base/mpxl/mp-node.mpxl
create mode 100644 metapost/context/base/mpxl/mp-shap.mpxl
create mode 100644 metapost/context/base/mpxl/mp-tool.mpxl
(limited to 'metapost')
diff --git a/metapost/context/base/mpiv/mp-cont.mpiv b/metapost/context/base/mpiv/mp-cont.mpiv
index 083286bee..13d686848 100644
--- a/metapost/context/base/mpiv/mp-cont.mpiv
+++ b/metapost/context/base/mpiv/mp-cont.mpiv
@@ -155,4 +155,4 @@ vardef OuterMargin = if not OnRightPage : LeftMargin else : RightMargin fi endd
vardef InnerMargin = if not OnRightPage : RightMargin else : LeftMargin fi enddef ;
vardef OuterEdge = if not OnRightPage : LeftEdge else : RightEdge fi enddef ;
-vardef InnerEdge = if not OnRightPage : Rightedge else : LeftEdge fi enddef ;
+vardef InnerEdge = if not OnRightPage : RightEdge else : LeftEdge fi enddef ;
diff --git a/metapost/context/base/mpiv/mp-core.mpiv b/metapost/context/base/mpiv/mp-core.mpiv
deleted file mode 100644
index 0ef24e57e..000000000
--- a/metapost/context/base/mpiv/mp-core.mpiv
+++ /dev/null
@@ -1,1558 +0,0 @@
-%D \module
-%D [ file=mp-core.mpiv,
-%D version=1999.08.01, % anchoring
-%D title=\CONTEXT\ \METAPOST\ graphics,
-%D subtitle=background macros,
-%D author=Hans Hagen,
-%D date=\currentdate,
-%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
-%C
-%C This module is part of the \CONTEXT\ macro||package and is
-%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
-%C details.
-
-if known context_core : endinput ; fi ;
-
-boolean context_core ; context_core := true ;
-
-%D Copied to here .. not used any more.
-
-if unknown NOfTextColumns : numeric NOfTextColumns ; NOfTextColumns := 1 ; fi ;
-if unknown NOfTextAreas : numeric NOfTextAreas ; NOfTextAreas := 1 ; fi ;
-
-def SaveTextAreas =
- path SavedTextAreas [] ;
- path SavedTextColumns[] ;
- numeric NOfSavedTextAreas ;
- numeric NOfSavedTextColumns ;
- for i=1 upto NOfTextAreas :
- SavedTextAreas[i] := TextAreas[i] ;
- endfor ;
- for i=1 upto NOfTextColumns :
- SavedTextColumns[i] := TextColumns[i] ;
- endfor ;
- NOfSavedTextAreas := NOfTextAreas ;
- NOfSavedTextColumns := NOfTextColumns ;
-enddef ;
-
-def ResetTextAreas =
- path TextAreas[], TextColumns[], PlainTextArea, RegionTextArea ;
- numeric NOfTextAreas ; NOfTextAreas := 0 ;
- numeric NOfTextColumns ; NOfTextColumns := 0 ;
- numeric nofmultipars ; nofmultipars := 0 ;
- TextAreas[0] := TextColumns[0] := origin -- cycle ;
-enddef ;
-
-ResetTextAreas ; SaveTextAreas ; ;
-
-def RegisterTextArea (expr x, y, w, h, d) =
- begingroup ;
- save p ; path p ;
- p := unitsquare xyscaled(w,h+d) shifted (x,y-d) ;
- if NOfTextAreas>0 :
- % if needed, concatenate areas
- if (round(llcorner TextAreas[NOfTextAreas]) = round(ulcorner p)) and
- (round(lrcorner TextAreas[NOfTextAreas]) = round(urcorner p)) :
- p :=
- ulcorner TextAreas[NOfTextAreas] --
- urcorner TextAreas[NOfTextAreas] --
- lrcorner p --
- llcorner p -- cycle ;
- else :
- NOfTextAreas := NOfTextAreas + 1 ;
- fi ;
- else :
- NOfTextAreas := NOfTextAreas + 1 ;
- fi ;
- TextAreas[NOfTextAreas] := p ;
- if NOfTextColumns>0 :
- if (round(xpart llcorner TextColumns[NOfTextColumns]) = round(xpart ulcorner p)) and
- (round(xpart lrcorner TextColumns[NOfTextColumns]) = round(xpart urcorner p)) :
- p :=
- ulcorner TextColumns[NOfTextColumns] --
- urcorner TextColumns[NOfTextColumns] --
- lrcorner p --
- llcorner p -- cycle ;
- else :
- NOfTextColumns := NOfTextColumns + 1 ;
- fi ;
- else :
- NOfTextColumns := NOfTextColumns + 1 ;
- fi ;
- TextColumns[NOfTextColumns] := p ;
- endgroup ;
-enddef ;
-
-%D We store a local area in slot zero.
-
-def RegisterPlainTextArea(expr x,y,w,h,d) =
- PlainTextArea := unitsquare xyscaled(w,h+d) shifted (x,y-d) ;
-enddef ;
-
-def RegisterRegionTextArea(expr x,y,w,h,d) =
- RegionTextArea := unitsquare xyscaled(w,h+d) shifted (x,y-d) ;
- % RegionTextArea := RegionTextArea enlarged 2mm ;
-enddef ;
-
-def RegisterLocalTextArea (expr x, y, w, h, d) =
- TextAreas[0] := TextColumns[0] := unitsquare xyscaled(w,h+d) shifted (x,y-d) ;
-enddef ;
-
-def ResetLocalTextArea =
- TextAreas[0] := TextColumns[0] := origin -- cycle ;
-enddef ;
-
-ResetLocalTextArea ;
-
-vardef InsideTextArea (expr _i_, _xy_) =
- (round(xpart _xy_) >= round(xpart llcorner TextAreas[_i_])) and
- (round(xpart _xy_) <= round(xpart lrcorner TextAreas[_i_])) and
- (round(ypart _xy_) >= round(ypart llcorner TextAreas[_i_])) and
- (round(ypart _xy_) <= round(ypart urcorner TextAreas[_i_]))
-enddef ;
-
-vardef InsideSavedTextArea (expr _i_, _xy_) =
- (round(xpart _xy_) >= round(xpart llcorner SavedTextAreas[_i_])) and
- (round(xpart _xy_) <= round(xpart lrcorner SavedTextAreas[_i_])) and
- (round(ypart _xy_) >= round(ypart llcorner SavedTextAreas[_i_])) and
- (round(ypart _xy_) <= round(ypart urcorner SavedTextAreas[_i_]))
-enddef ;
-
-vardef InsideSomeTextArea (expr _xy_) =
- save ok ; boolean ok ; ok := false ;
- for i := 1 upto NOfTextAreas :
- if InsideTextArea(i,_xy_) :
- ok := true ; % we can move the exit here
- fi ;
- exitif ok ;
- endfor ;
- ok
-enddef ;
-
-vardef InsideSomeSavedTextArea (expr _xy_) =
- save ok ; boolean ok ; ok := false ;
- for i := 1 upto NOfSavedTextAreas :
- if InsideSavedTextArea(i,_xy_) :
- ok := true ;
- fi ;
- exitif ok ;
- endfor ;
- ok
-enddef ;
-
-vardef TextAreaX (expr x) =
- numeric _TextAreaX_ ; _TextAreaX_ := 0 ;
- for i := 1 upto NOfTextAreas :
- if (round(x) >= round(xpart llcorner TextAreas[i])) and
- (round(x) <= round(xpart lrcorner TextAreas[i])) :
- _TextAreaX_ := xpart llcorner TextAreas[i] ;
- fi ;
- endfor ;
- _TextAreaX_
-enddef ;
-
-vardef TextAreaY (expr y) =
- numeric _TextAreaY_ ; _TextAreaY_ := 0 ;
- for i := 1 upto NOfTextAreas :
- if (round(y) >= round(ypart llcorner TextAreas[NOfTextAreas])) and
- (round(y) <= round(ypart ulcorner TextAreas[NOfTextAreas])) :
- _TextAreaY_ := ypart llcorner TextAreas[NOfTextAreas] ;
- fi ;
- endfor ;
- _TextAreaY_
-enddef ;
-
-vardef TextAreaXY (expr x, y) =
- pair _TextAreaXY_ ; _TextAreaXY_ := origin ;
- for i := 1 upto NOfTextAreas :
- if (round(x) >= round(xpart llcorner TextAreas[i])) and
- (round(x) <= round(xpart lrcorner TextAreas[i])) and
- (round(y) >= round(ypart llcorner TextAreas[i])) and
- (round(y) <= round(ypart ulcorner TextAreas[i])) :
- _TextAreaXY_ := llconer TextAreas[i] ;
- fi ;
- endfor ;
- _TextAreaXY_
-enddef ;
-
-vardef TextAreaW (expr x) =
- numeric _TextAreaW_ ; _TextAreaW_ := 0 ;
- for i := 1 upto NOfTextAreas :
- if (round(x) >= round(xpart llcorner TextAreas[i])) and
- (round(x) <= round(xpart lrcorner TextAreas[i])) :
- _TextAreaW_ := bbwidth(TextAreas[i]) ;
- fi ;
- endfor ;
- _TextAreaW_
-enddef ;
-
-vardef TextAreaH (expr y) =
- numeric _TextAreaH_ ; _TextAreaH_ := 0 ;
- for i := 1 upto NOfTextAreas :
- if (round(y) >= round(ypart llcorner TextAreas[i])) and
- (round(y) <= round(ypart ulcorner TextAreas[i])) :
- _TextAreaH_ := bbheight(TextAreas[i]) ;
- fi ;
- endfor ;
- _TextAreaH_
-enddef ;
-
-vardef TextAreaWH (expr x, y) =
- pair _TextAreaWH_ ; _TextAreaWH_ := origin ;
- for i := 1 upto NOfTextAreas :
- if (round(x) >= round(xpart llcorner TextAreas[i])) and
- (round(x) <= round(xpart lrcorner TextAreas[i])) and
- (round(y) >= round(ypart llcorner TextAreas[i])) and
- (round(y) <= round(ypart ulcorner TextAreas[i])) :
- _TextAreaWH_ := (bbwidth(TextAreas[i]),bbheight(TextAreas[i])) ;
- fi ;
- endfor ;
- _TextAreaWH_
-enddef ;
-
-%D Till here.
-
-pair lxy[], rxy[], cxy[], llxy[], lrxy[], ulxy[], urxy[] ;
-path pxy[] ;
-numeric hxy[], wxy[], dxy[], nxy[] ;
-
-def box_found (expr n,x,y,w,h,d) =
- not ((x=0) and (y=0) and (w=0) and (h=0) and (d=0))
-enddef ;
-
-def initialize_box_pos (expr pos,n,x,y,w,h,d) =
- pair lxy, rxy, cxy, llxy, lrxy, ulxy, urxy ;
- path pxy ; numeric hxy, wxy, dxy, nxy;
- lxy := (x,y) ;
- llxy := (x,y-d) ;
- lrxy := (x+w,y-d) ;
- urxy := (x+w,y+h) ;
- ulxy := (x,y+h) ;
- wxy := w ;
- hxy := h ;
- dxy := d ;
- rxy := lxy shifted (wxy,0) ;
- pxy := llxy--lrxy--urxy--ulxy--cycle ;
- cxy := center pxy ;
- nxy := n ;
- freeze_box(pos) ;
-enddef ;
-
-def freeze_box (expr pos) =
- lxy[pos] := lxy ;
- llxy[pos] := llxy ;
- lrxy[pos] := lrxy ;
- urxy[pos] := urxy ;
- ulxy[pos] := ulxy ;
- wxy[pos] := wxy ;
- hxy[pos] := hxy ;
- dxy[pos] := dxy ;
- rxy[pos] := rxy ;
- pxy[pos] := pxy ;
- cxy[pos] := cxy ;
- nxy[pos] := nxy ;
-enddef ;
-
-def initialize_box (expr n,x,y,w,h,d) =
- numeric bpos ; bpos := 0 ; initialize_box_pos(bpos,n,x,y,w,h,d) ;
-enddef ;
-
-def initialize_area (expr fn,fx,fy,fw,fh,fd,
- tn,tx,ty,tw,th,td) =
- numeric fpos ; fpos := 1 ; initialize_box_pos(fpos,fn,fx,fy,fw,fh,fd) ;
- numeric tpos ; tpos := 2 ; initialize_box_pos(tpos,tn,tx,ty,tw,th,td) ;
- do_initialize_area (fpos, tpos) ;
-enddef ;
-
-def do_initialize_area (expr fpos, tpos) =
- lxy := lxy[fpos] ;
- llxy := (xpart llxy[fpos], ypart llxy[tpos]) ;
- lrxy := lrxy[tpos] ;
- urxy := (xpart urxy[tpos], ypart urxy[fpos]) ;
- ulxy := ulxy[fpos] ;
- wxy := xpart lrxy - xpart llxy ;
- hxy := hxy[fpos] ;
- dxy := dxy[tpos] ;
- rxy := lxy shifted (wxy,0) ;
- pxy := llxy--lrxy--urxy--ulxy--cycle ;
- cxy := center pxy ;
-enddef ;
-
-def set_par_line_height (expr ph, pd) =
- par_strut_height := if ph>0 : ph elseif StrutHeight>0 : StrutHeight else : 8pt fi ;
- par_strut_depth := if pd>0 : pd elseif StrutDepth >0 : StrutDepth else : 3pt fi ;
- par_line_height := par_strut_height + par_strut_depth ;
-enddef ;
-
-def initialize_par (expr fn,fx,fy,fw,fh,fd,
- tn,tx,ty,tw,th,td,
- mn,mx,my,mw,mh,md,
- pn,px,py,pw,ph,pd,
- rw,rl,rr,rh,ra,ri) =
-
- numeric fpos ; fpos := 1 ; initialize_box_pos(fpos,fn,fx,fy,fw,fh,fd) ;
- numeric tpos ; tpos := 2 ; initialize_box_pos(tpos,tn,tx,ty,tw,th,td) ;
- numeric mpos ; mpos := 3 ; initialize_box_pos(mpos,mn,mx,my,mw,mh,md) ;
- numeric ppos ; ppos := 4 ; initialize_box_pos(ppos,pn,px,py,pw,ph,pd) ;
-
- numeric par_strut_height, par_strut_depth, par_line_height ;
-
- set_par_line_height (ph, pd) ;
-
- do_initialize_area (fpos, tpos) ;
- do_initialize_par (fpos, tpos, mpos, ppos, rw,rl,rr,rh,ra,ri) ;
-
-enddef ;
-
-def initialize_area_par (expr fn,fx,fy,fw,fh,fd,
- tn,tx,ty,tw,th,td,
- wn,wx,wy,ww,wh,wd) =
-
- numeric fpos ; fpos := 1 ; initialize_box_pos(fpos,fn,fx,fy,fw,fh,fd) ;
- numeric tpos ; tpos := 2 ; initialize_box_pos(tpos,tn,tx,ty,tw,th,td) ;
- numeric wpos ; wpos := 3 ; initialize_box_pos(wpos,wn,wx,wy,ww,wh,wd) ;
-
- numeric par_strut_height, par_strut_depth, par_line_height ;
-
- set_par_line_height (wh, wd) ;
-
- numeric ffpos ; ffpos := 4 ; initialize_box_pos(ffpos,wn,wx,fy,0,wh,wd) ;
- numeric ttpos ; ttpos := 5 ; initialize_box_pos(ttpos,wn,wx+ww,ty,0,wh,wd) ;
-
- do_initialize_area (ffpos, ttpos) ;
-
- numeric mpos ; mpos := 6 ; freeze_box(mpos) ;
-
- do_initialize_par (fpos, tpos, mpos, ffpos, 0,0,0,0,0,0) ;
-
-enddef ;
-
-def do_initialize_par (expr fpos, tpos, mpos, ppos, rw,rl,rr,rh,ra,ri) =
-
- pair lref, rref, pref, lhref, rhref ;
-
- % clip the page area to the left and right skips
-
- llxy[mpos] := llxy[mpos] shifted (+rl,0) ;
- lrxy[mpos] := lrxy[mpos] shifted (-rr,0) ;
- urxy[mpos] := urxy[mpos] shifted (-rr,0) ;
- ulxy[mpos] := ulxy[mpos] shifted (+rl,0) ;
-
- % fixate the leftskip, rightskip and hanging indentation
-
- lref := (xpart llxy[mpos],ypart ulxy[ppos]) ; lhref := lref shifted (rh,0) ;
- rref := (xpart lrxy[mpos],ypart urxy[ppos]) ; rhref := rref shifted (rh,0) ;
-
- pref := lxy[ppos] ;
-
- if nxy[tpos] > nxy[fpos] :
- if nxy[fpos] = nxy[mpos] :
- % first of multiple pages
- llxy[tpos] := llxy[mpos] ;
- lrxy[tpos] := lrxy[mpos] ;
- urxy[tpos] := lrxy[mpos] shifted (0,par_line_height) ;
- ulxy[tpos] := llxy[mpos] shifted (0,par_line_height) ;
- boxgriddirection := down ;
- elseif nxy[tpos] = nxy[mpos] :
- % last of multiple pages
- llxy[fpos] := ulxy[mpos] shifted (0,-par_line_height) ;
- lrxy[fpos] := urxy[mpos] shifted (0,-par_line_height) ;
- urxy[fpos] := urxy[mpos] ;
- ulxy[fpos] := ulxy[mpos] ;
- boxgriddirection := up ;
- else :
- % middle of multiple pages
- llxy[fpos] := ulxy[mpos] shifted (0,-par_line_height) ;
- lrxy[fpos] := urxy[mpos] shifted (0,-par_line_height) ;
- urxy[fpos] := urxy[mpos] ;
- ulxy[fpos] := ulxy[mpos] ;
- llxy[tpos] := llxy[mpos] ;
- lrxy[tpos] := lrxy[mpos] ;
- urxy[tpos] := lrxy[mpos] shifted (0,par_line_height) ;
- ulxy[tpos] := llxy[mpos] shifted (0,par_line_height) ;
- boxgriddirection := up ;
- fi ;
- else :
- % just one page
- boxgriddirection := up ;
- fi ;
-
- path txy, bxy, pxy, mxy ;
-
- txy := originpath ; % top
- bxy := originpath ; % bottom
- pxy := originpath ; % composed
-
- boolean lefthang, righthang, somehang ;
-
- % we only hang on the first of a multiple page background
-
- if nxy[mpos] > nxy[fpos] :
- lefthang := righthang := somehang := false ;
- else :
- lefthang := (rh>0) ; righthang := (rh<0) ; somehang := false ;
- fi ;
-
- if lefthang :
- mxy := boundingbox (lref -- lref shifted (rh,ra*par_line_height)) ;
- elseif righthang :
- mxy := boundingbox (rref -- rref shifted (rh,ra*par_line_height)) ;
- else :
- mxy := originpath ;
- fi ;
-
- if round(ypart llxy[fpos]) = round(ypart llxy[tpos]) :
-
- % We have a one-liner. Watch how er use the bottom pos for
- % determining the height.
-
- llxy[fpos] := (xpart llxy[fpos], ypart llxy[tpos]) ;
- ulxy[fpos] := (xpart ulxy[fpos], ypart ulxy[tpos]) ;
-
- else :
-
- % We have a multi-liner. For convenience we now correct the
- % begin and end points for indentation.
-
- if lefthang and (round(ypart llxy[tpos]) >= round(ypart lrcorner mxy)) :
- llxy[tpos] := (xpart lhref, ypart llxy[tpos]) ;
- ulxy[tpos] := (xpart lhref, ypart ulxy[tpos]) ;
- else :
- llxy[tpos] := (xpart lref, ypart llxy[tpos]) ;
- ulxy[tpos] := (xpart lref, ypart ulxy[tpos]) ;
- fi ;
-
- if righthang and (round(ypart lrxy[fpos]) >= round(ypart llcorner mxy)) :
- lrxy[fpos] := (xpart rhref, ypart lrxy[fpos]) ;
- urxy[fpos] := (xpart rhref, ypart urxy[fpos]) ;
- else :
- lrxy[fpos] := (xpart rref, ypart lrxy[fpos]) ;
- urxy[fpos] := (xpart rref, ypart urxy[fpos]) ;
- fi ;
-
- fi ;
-
- somehang := (ypart ulxy[fpos]>ypart llcorner mxy) and
- (ypart llxy[tpos]<ypart llcorner mxy) ;
-
- if round(ypart llxy[fpos]) = round(ypart llxy[tpos]) :
-
- % A (short) one-liner goes into the top box.
-
- txy := llxy[fpos] -- lrxy[tpos] -- urxy[tpos] -- ulxy[fpos] -- cycle ;
-
- elseif (round(ypart llxy[fpos]) = round(ypart ulxy[tpos])) and
- (round(xpart lrxy[tpos]) < round(xpart llxy[fpos])) :
-
- % We have a sentence that spans two lines but with only end
- % of line and begin of line segments. We need to take care of
- % indentation.
-
- txy := llxy[fpos] -- lrxy[fpos] -- urxy[fpos] -- ulxy[fpos] -- cycle ;
- bxy := llxy[tpos] -- lrxy[tpos] -- urxy[tpos] -- ulxy[tpos] -- cycle ;
-
- elseif (round(ypart llxy[fpos]) = round(ypart ulxy[tpos])) :
-
- % We have a sentence that spans two lines but with overlap.
-
- pxy :=
- llxy[tpos] -- lrxy[tpos] -- urxy[tpos] -- lrxy[fpos] --
- urxy[fpos] -- ulxy[fpos] -- llxy[fpos] -- ulxy[tpos] -- cycle ;
-
- elseif lefthang and somehang :
-
- % We have a sentence that spans more than two lines with
- % left hanging indentation.
-
- pxy :=
- llxy[tpos] -- lrxy[tpos] -- urxy[tpos] --
- (xpart urxy[fpos],ypart urxy[tpos]) --
- urxy[fpos] -- ulxy[fpos] -- llxy[fpos] --
- if round(ypart urxy[tpos]) < round(ypart llcorner mxy) :
- (xpart lrcorner mxy,ypart llxy[fpos]) --
- lrcorner mxy --
- (xpart llxy[tpos],ypart llcorner mxy) --
- else :
- (xpart llxy[tpos],ypart llxy[fpos]) --
- fi
- cycle ;
-
- elseif righthang and somehang :
-
- % We have a sentence that spans more than two lines with
- % right hanging indentation.
-
- pxy :=
- llxy[tpos] -- lrxy[tpos] -- urxy[tpos] --
- if round(ypart urxy[tpos]) < round(ypart llcorner mxy) :
- (xpart lrcorner mxy,ypart urxy[tpos]) --
- lrcorner mxy -- llcorner mxy --
- else :
- (xpart urxy[fpos],ypart urxy[tpos]) --
- fi
- urxy[fpos] -- ulxy[fpos] -- llxy[fpos] --
- (xpart llxy[tpos],ypart llxy[fpos]) --
- cycle ;
-
- else :
-
- % We have a sentence that spans more than two lines with
- % no hanging indentation.
-
- pxy :=
- llxy[tpos] -- lrxy[tpos] -- urxy[tpos] --
- (xpart urxy[fpos],ypart urxy[tpos]) --
- urxy[fpos] -- ulxy[fpos] -- llxy[fpos] --
- (xpart llxy[tpos],ypart llxy[fpos]) --
- cycle ;
-
- fi ;
-
- pxy := simplified pxy ;
- pxy := unspiked pxy ;
-
-enddef ;
-
-pair last_multi_par_shift ; last_multi_par_shift := origin ;
-
-def relocate_multipars (expr xy) =
- last_multi_par_shift := xy ;
- for i=1 upto nofmultipars :
- multipars[i] := multipars[i] shifted last_multi_par_shift ;
- endfor ;
-enddef ;
-
-boolean compensate_multi_par_topskip ;
-boolean span_multi_column_pars ;
-boolean auto_multi_par_hsize ;
-boolean enable_multi_par_fallback ;
-
-compensate_multi_par_topskip := true ;
-span_multi_column_pars := false ;
-auto_multi_par_hsize := false ; % true ;
-enable_multi_par_fallback := true ;
-
-vardef multi_par_at_top (expr i) =
- (round (ypart ulcorner multipars[i]) = round (ypart ulcorner (TextAreas[multirefs[i]] shifted last_multi_par_shift)))
-enddef ;
-
-numeric nofmultipars ; nofmultipars := 0 ;
-
-boolean obey_multi_par_hang ; obey_multi_par_hang := true ;
-boolean obey_multi_par_more ; obey_multi_par_more := true ;
-boolean snap_multi_par_tops ; snap_multi_par_tops := true ;
-boolean local_multi_par_area ; local_multi_par_area := false ;
-boolean use_multi_par_region ; use_multi_par_region := false ;
-boolean ignore_multi_par_page ; ignore_multi_par_page := false ;
-boolean force_multi_par_chain ; force_multi_par_chain := true ;
-boolean one_piece_multi_par ; one_piece_multi_par := false ;
-boolean check_multi_par_chain ; check_multi_par_chain := true ; % extra page check
-
-boolean multi_column_first_page_hack; multi_column_first_page_hack := true ; % seems to work ok
-
-def simplify_multi_pars = % boundingbox ipv shape als optie
- for i := 1 upto nofmultipars :
- multipars[i] := boundingbox multipars[i] ;
- endfor ;
-enddef ;
-
-def save_multipar (expr i, l, p) =
- nofmultipars := nofmultipars + 1 ;
- multirefs[nofmultipars] := i ;
- multilocs[nofmultipars] := l ;
- multipars[nofmultipars] := unspiked (simplified p) ;
-enddef ;
-
-def prepare_multi_pars (expr fn,fx,fy,fw,fh,fd,
- tn,tx,ty,tw,th,td,
- wn,wx,wy,ww,wh,wd,
- pn,px,py,pw,ph,pd,
- rw,rl,rr,rh,ra,ri) =
-
-% fill PlainTextArea withcolor red ;
-% fill RegionTextArea withcolor green;
-
- if span_multi_column_pars :
- begingroup ;
- save TextAreas ; path TextAreas[] ;
- save NOfTextAreas ; numeric NOfTextAreas ;
- for i=1 upto NOfTextColumns :
- TextAreas[i] := TextColumns[i] ;
- endfor ;
- NOfTextAreas := NOfTextColumns ;
- fi ;
-
- last_multi_par_shift := origin ;
-
-% save _tx_, _ty_, _fx_, _fy_ ;
-% if use_multi_par_region :
-% _fx_ := fx ; %min(xpart ulcorner RegionTextArea,fx) ;
-% _fy_ := fy ; %min(xpart ulcorner RegionTextArea,fy) ;
-% _tx_ := min(xpart lrcorner RegionTextArea,tx) ;
-% _ty_ := min(xpart lrcorner RegionTextArea,ty) ;
-% else :
-% _fx_ := fx ;
-% _fy_ := fy ;
-% _tx_ := tx ;
-% _ty_ := ty ;
-% fi ;
-
-% numeric fpos ; fpos := 1 ; initialize_box_pos(fpos,fn,_fx_,_fy_,fw,fh,fd) ;
-% numeric tpos ; tpos := 2 ; initialize_box_pos(tpos,tn,_tx_,_ty_,tw,th,td) ;
- numeric fpos ; fpos := 1 ; initialize_box_pos(fpos,fn,fx,fy,fw,fh,fd) ;
- numeric tpos ; tpos := 2 ; initialize_box_pos(tpos,tn,tx,ty,tw,th,td) ;
- numeric wpos ; wpos := 3 ; initialize_box_pos(wpos,wn,wx,wy,ww,wh,wd) ;
- numeric ppos ; ppos := 4 ; initialize_box_pos(ppos,pn,px,py,pw,ph,pd) ;
-
- if local_multi_par_area :
- RealPageNumber := fn ;
- NOfTextAreas := 1 ;
- NOfSavedTextAreas := 0 ;
- TextAreas[1] := TextAreas[0] ;
- TextColumns[1] := TextColumns[0] ;
- nxy[fpos] := nxy[tpos] := nxy[wpos] := nxy[ppos] := RealPageNumber ;
- elseif use_multi_par_region :
- RealPageNumber := fn ;
- NOfTextAreas := 1 ;
- NOfSavedTextAreas := 0 ;
- TextAreas[1] := RegionTextArea ;
- TextColumns[1] := RegionTextArea ;
- nxy[fpos] := nxy[tpos] := nxy[wpos] := nxy[ppos] := RealPageNumber ;
- elseif ignore_multi_par_page :
- RealPageNumber := fn ;
- nxy[fpos] := nxy[tpos] := nxy[wpos] := nxy[ppos] := RealPageNumber ;
- fi ;
-
- numeric par_strut_height, par_strut_depth, par_line_height ;
-
- set_par_line_height (ph, pd) ;
-
- numeric par_hang_indent, par_hang_after, par_indent, par_left_skip, par_right_skip ;
-
- par_hang_indent := rh ;
- par_hang_after := ra ;
- par_indent := ri ;
- par_left_skip := rl ;
- par_right_skip := rr ;
-
- pair par_start_pos ;
- pair par_stop_pos ;
-
- par_start_pos := llxy[fpos]
- if par_indent <0: shifted (-par_indent, 0) fi
- if par_left_skip<0: shifted (-par_left_skip,0) fi ;
-
- par_stop_pos := lrxy[tpos]
- if par_right_skip<0: shifted (par_right_skip,0) fi ; % nasty as the endpos can be shifted by rightskip
-
- if wxy[wpos]>0 :
- left_skip := rl + xpart llxy[wpos] - xpart llxy[ppos] ;
- right_skip := rw - left_skip - ww ;
- else :
- left_skip := rl ;
- right_skip := rr ;
- fi ;
-
- path multipar, multipars[] ;
- numeric multiref, multirefs[] ;
- numeric multiloc, multilocs[] ; % 1=begin 2=between 3=end
-
- numeric multi_par_pages ; multi_par_pages := nxy[tpos]-nxy[fpos]+1 ;
-
- % locals .. why can't i move these outside?
-
- vardef _pmp_set_multipar_ (expr i) =
- ( (TextAreas[i] leftenlarged -left_skip) rightenlarged (-right_skip
- if auto_multi_par_hsize : + rw - bbwidth(TextAreas[i]) fi) )
- enddef ;
-
- vardef _pmp_snapped_multi_pos_ (expr p) =
- if snap_multi_par_tops :
- if abs(ypart p - ypart ulcorner multipar) < par_line_height :
- (xpart p,ypart ulcorner multipar)
- else :
- p
- fi
- else :
- p
- fi
- enddef ;
-
- vardef _pmp_estimated_par_lines_ (expr h) =
- round(h/par_line_height)
- enddef ;
-
- vardef _pmp_top_multi_par_(expr p) =
- (round(_pmp_estimated_par_lines_(bbheight(p)*par_line_height))=round(bbheight(p)))
- enddef ;
-
- vardef _pmp_multi_par_tsc_(expr p) =
- if _pmp_top_multi_par_(p) : TopSkipCorrection else : 0 fi
- enddef ;
-
- vardef _pmp_estimated_multi_par_height_ (expr n, t) =
- if round(par_line_height)=0 :
- 0
- else :
- save ok, h ; boolean ok ;
- numeric h ; h := 0 ;
- ok := false ;
- if (nxy[fpos]=RealPageNumber-1) :
- for i := 1 upto NOfSavedTextAreas :
- if (InsideSavedTextArea(i,par_start_pos)) :
- ok := true ;
- h := h + _pmp_estimated_par_lines_(ypart ulxy[fpos] - ypart llcorner SavedTextAreas[i]) ;
- elseif ok :
- h := h + _pmp_estimated_par_lines_(bbheight(SavedTextAreas[i])) ;
- fi ;
- endfor ;
- fi ;
- if ok :
- for i := 1 upto n-1 :
- h := h + _pmp_estimated_par_lines_(bbheight(TextAreas[i])) ;
- endfor ;
- else :
- % already: ok := false ;
- for i := 1 upto n-1 :
- if (InsideTextArea(i,par_start_pos)) :
- ok := true ;
- h := h + _pmp_estimated_par_lines_(ypart ulxy[fpos] - ypart llcorner TextAreas[i]) ;
- elseif ok :
- h := h + _pmp_estimated_par_lines_(bbheight(TextAreas[i])) ;
- fi ;
- endfor ;
- fi ;
- h
- fi
- enddef ;
-
- vardef _pmp_left_top_hang_ (expr same_area) =
-
- par_hang_after := ra + _pmp_estimated_par_lines_(py-fy) ;
-
- if (par_hang_indent>0) and (par_hang_after<0) and obey_multi_par_hang :
- pair _ul_ ; _ul_ := (xpart ulcorner multipar, ypart _pmp_snapped_multi_pos_(ulxy[fpos]));
- pair _pa_ ; _pa_ := _ul_ shifted (0,par_hang_after*par_line_height) ;
- _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart llcorner multipar)) ;
- if same_area :
- _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart llxy[tpos])) ;
- fi ;
- if obey_multi_par_more and (round(par_line_height)>0) :
- par_hang_after := min(0,round(par_hang_after + (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ;
- fi ;
- (xpart _ul_ + par_hang_indent, ypart lrxy[fpos]) --
- (xpart _ul_ + par_hang_indent, ypart _pa_) --
- (xpart ulcorner multipar, ypart _pa_)
- else :
- (xpart ulcorner multipar, ypart lrxy[fpos])
- fi
- enddef ;
-
- vardef _pmp_right_top_hang_ (expr same_area) =
-
- par_hang_after := ra + _pmp_estimated_par_lines_(py-fy) ;
-
- if (par_hang_indent<0) and (par_hang_after<0) and obey_multi_par_hang :
- pair _ur_ ; _ur_ := (xpart urcorner multipar, ypart _pmp_snapped_multi_pos_(urxy[fpos])) ;
- pair _pa_ ; _pa_ := _ur_ shifted (0,par_hang_after*par_line_height) ;
- _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart llcorner multipar)) ;
- if same_area :
- _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart _pmp_snapped_multi_pos_(ulxy[tpos]))) ;
- fi ;
- if obey_multi_par_more and (round(par_line_height)>0) :
- par_hang_after := min(0,round(par_hang_after + (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ;
- fi ;
- (xpart urcorner multipar, ypart _pa_) --
- (xpart _ur_ + par_hang_indent, ypart _pa_) --
- (xpart _ur_ + par_hang_indent, ypart _pmp_snapped_multi_pos_(urxy[fpos]))
- else :
- (xpart urcorner multipar, ypart _pmp_snapped_multi_pos_(urxy[fpos]))
- fi
- enddef ;
-
- vardef _pmp_x_left_top_hang_ (expr i, t) =
- par_hang_after := min(0,ra + _pmp_estimated_multi_par_height_(i,t)) ;
- if (par_hang_indent>0) and (par_hang_after<0) :
- pair _ul_ ; _ul_ := ulcorner multipar ;
- pair _pa_ ; _pa_ := _ul_ shifted (0,par_hang_after*par_line_height) ;
- _pa_ := (xpart _pa_,max(ypart _pa_,ypart llcorner multipar)) ;
- if t :
- _pa_ := (xpart _pa_,max(ypart _pa_,ypart llxy[tpos]));
- fi ;
- if abs(ypart _pa_-ypart llxy[tpos])<par_line_height :
- _pa_ := (xpart _pa_,ypart llxy[tpos]);
- fi ;
- if abs(ypart _pa_-ypart llcorner multipar)<par_line_height :
- _pa_ := (xpart _pa_,ypart llcorner multipar);
- fi ;
- (xpart _ul_, ypart _pa_) --
- (xpart _ul_ + par_hang_indent, ypart _pa_) --
- (xpart _ul_ + par_hang_indent, ypart _ul_)
- else :
- ulcorner multipar
- fi
- enddef ;
-
- vardef _pmp_x_right_top_hang_ (expr i, t) =
- par_hang_after := min(0,ra + _pmp_estimated_multi_par_height_(i,t)) ;
- if (par_hang_indent<0) and (par_hang_after<0) :
- pair _ur_ ; _ur_ := urcorner multipar ;
- pair _pa_ ; _pa_ := _ur_ shifted (0,par_hang_after*par_line_height) ;
- _pa_ := (xpart _pa_,max(ypart _pa_,ypart lrcorner multipar)) ;
- if t :
- _pa_ := (xpart _pa_,max(ypart _pa_,ypart _pmp_snapped_multi_pos_(urxy[tpos]))) ;
- fi ;
- (xpart _ur_ + par_hang_indent, ypart _ur_) --
- (xpart _ur_ + par_hang_indent, ypart _pa_) --
- (xpart _ur_, ypart _pa_)
- else :
- urcorner multipar
- fi
- enddef ;
-
- vardef _pmp_left_bottom_hang_ (expr same_area) =
- pair _ll_, _sa_, _pa_ ;
- _sa_ := if same_area : llxy[tpos] else : lrcorner multipar fi ;
- if (par_hang_indent>0) and (par_hang_after>0) and obey_multi_par_hang :
- _ll_ := (xpart ulcorner multipar, ypart _pmp_snapped_multi_pos_(ulxy[fpos])) ;
- _pa_ := _ll_ shifted (0,-par_hang_after*par_line_height) ;
- _pa_ := (xpart _pa_,max(ypart _pa_,ypart llcorner multipar)) ;
- if same_area :
- _pa_ := (xpart _pa_,max(ypart _pa_,ypart _sa_)) ;
- fi ;
- if obey_multi_par_more and (round(par_line_height)>0) :
- par_hang_after := max(0,round(par_hang_after - (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ;
- fi ;
- _pa_ --
- (xpart _pa_ + par_hang_indent,ypart _pa_) --
- (xpart _pa_ + par_hang_indent,ypart _sa_)
- else :
- (xpart llcorner multipar, ypart _sa_)
- fi
- enddef ;
-
- vardef _pmp_right_bottom_hang_ (expr same_area) =
- pair _lr_, _sa_, _pa_ ;
- _sa_ := if same_area : _pmp_snapped_multi_pos_(ulxy[tpos]) else : lrcorner multipar fi ;
- if (par_hang_indent<0) and (par_hang_after>0) and obey_multi_par_hang :
- _lr_ := (xpart urcorner multipar, ypart _pmp_snapped_multi_pos_(urxy[fpos])) ;
- _pa_ := _lr_ shifted (0,-par_hang_after*par_line_height) ;
- _pa_ := (xpart _pa_,max(ypart _pa_,ypart lrcorner multipar)) ;
- if same_area :
- _pa_ := (xpart _pa_,max(ypart _pa_,ypart _pmp_snapped_multi_pos_(ulxy[tpos]))) ;
- fi ;
- if obey_multi_par_more and (round(par_line_height)>0) :
- par_hang_after := max(0,round(par_hang_after - (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ;
- fi ;
- (xpart _pa_ + par_hang_indent,ypart _sa_) --
- (xpart _pa_ + par_hang_indent,ypart _pa_) --
- _pa_
- else :
- (xpart lrcorner multipar, ypart _sa_)
- fi
- enddef ;
-
- vardef _pmp_x_left_bottom_hang_ (expr i, t) =
- pair _ll_, _sa_, _pa_ ;
- _sa_ := if t : llxy[tpos] else : llcorner multipar fi ;
- if (par_hang_indent>0) and (ra>0) :
- par_hang_after := max(0,ra - _pmp_estimated_multi_par_height_(i,t)) ;
- _ll_ := ulcorner multipar ;
- _pa_ := _ll_ shifted (0,-par_hang_after*par_line_height) ;
- _pa_ := (xpart _pa_,max(ypart _pa_,ypart llcorner multipar)) ;
- _pa_ := (xpart _pa_,max(ypart _pa_,ypart _sa_)) ;
- % we need to compensate for topskip enlarged areas
- if abs(ypart _pa_ - ypart _sa_) > par_line_height :
- (xpart _pa_ + par_hang_indent,ypart _sa_) --
- (xpart _pa_ + par_hang_indent,ypart _pa_) --
- fi
- _pa_
- else :
- (xpart llcorner multipar, ypart _sa_)
- fi
- enddef ;
-
- vardef _pmp_x_right_bottom_hang_ (expr i, t) =
- pair _lr_, _sa_, _pa_ ;
- _sa_ := if t : _pmp_snapped_multi_pos_(ulxy[tpos]) else : llcorner multipar fi ;
- if (par_hang_indent<0) and (ra>0) :
- par_hang_after := max(0,ra - _pmp_estimated_multi_par_height_(i, t)) ;
- _lr_ := urcorner multipar ;
- _pa_ := _lr_ shifted (0,-par_hang_after*par_line_height) ;
- _pa_ := (xpart _pa_,max(ypart _pa_,ypart lrcorner multipar)) ;
- _pa_ := (xpart _pa_,max(ypart _pa_,ypart _sa_)) ;
- % we need to compensate for topskip enlarged areas
- _pa_
- if abs(ypart _pa_ - ypart _sa_) > par_line_height :
- -- (xpart _pa_ + par_hang_indent,ypart _pa_)
- -- (xpart _pa_ + par_hang_indent,ypart _sa_)
- fi
- else :
- (xpart lrcorner multipar, ypart _sa_)
- fi
- enddef ;
-
- % def _pmp_test_multipar_ =
- % multipar := boundingbox multipar ;
- % enddef ;
-
- % first loop
-
- ii := 0 ; nn := NOfTextAreas+1 ; nofmultipars := 0 ;
-
- if enable_multi_par_fallback and (nxy[fpos]=RealPageNumber)
- and (nxy[tpos]=RealPageNumber) and not (InsideSomeTextArea(lxy[fpos]) and InsideSomeTextArea(rxy[tpos])) :
-
- % fallback
-
- % multipar :=
- % llxy[fpos] --
- % lrxy[tpos] --
- % urxy[tpos] --
- % ulxy[fpos] -- cycle ;
- %
- % save_multipar (1,1,multipar) ;
-
- % we need to take the boundingbox because there can be
- % more lines and we want a proper rectange
-
- multipar :=
- ulxy[fpos] --
- urxy[tpos] --
- lrxy[fpos] --
- llxy[tpos] -- cycle ;
-
- save_multipar (1,1,boundingbox(multipar)) ;
-
- else :
-
- % normal
-
- for i=1 upto NOfTextAreas :
-
- TopSkipCorrection := 0 ;
-
- multipar := _pmp_set_multipar_(i) ;
-
- % watch how we compensate for negative indentation
-
- if (nxy[fpos]=RealPageNumber) and (InsideTextArea(i,par_start_pos)) :
-
- % first one in chain
-
- ii := i ;
-
- if (nxy[tpos]=RealPageNumber) and (InsideTextArea(i,par_stop_pos)) :
-
- % in same area
-
- nn := i ;
-
- if compensate_multi_par_topskip and (round(LineHeight-ph-pd)=0) :
-
- TopSkipCorrection := TopSkip - StrutHeight ;
-
- if round(ypart ulxy[fpos] + TopSkipCorrection) = round(ypart ulcorner TextAreas[i]) :
- ulxy[fpos] := ulxy[fpos] shifted (0,TopSkipCorrection) ;
- urxy[fpos] := urxy[fpos] shifted (0,TopSkipCorrection) ;
- else :
- TopSkipCorrection := 0 ;
- fi ;
-
- fi ;
-
- if ypart llxy[fpos] = ypart llxy[tpos] :
-
- multipar :=
- llxy[fpos] --
- lrxy[tpos] --
- _pmp_snapped_multi_pos_(urxy[tpos]) --
- _pmp_snapped_multi_pos_(ulxy[fpos]) --
- cycle ;
-
- save_multipar (i,1,multipar) ;
-
- elseif (ypart llxy[fpos] = ypart ulxy[tpos]) and (xpart llxy[tpos] < xpart llxy[fpos]) :
-
- % two loners
-
- multipar := if obey_multi_par_hang :
-
- _pmp_right_bottom_hang_(true) --
- _pmp_right_top_hang_(true) --
- _pmp_snapped_multi_pos_(urxy[fpos]) --
- lrxy[fpos] --
-
- else :
-
- llxy[fpos] --
- (xpart urcorner multipar, ypart llxy[fpos]) --
- (xpart urcorner multipar, ypart ulxy[fpos]) --
- _pmp_snapped_multi_pos_(ulxy[fpos]) --
-
- fi cycle ;
-
- save_multipar (i,1,multipar) ;
-
- multipar := _pmp_set_multipar_(i) ;
-
- multipar := if obey_multi_par_hang :
-
- _pmp_left_bottom_hang_(true) --
- llxy[tpos] --
- _pmp_snapped_multi_pos_(ulxy[tpos]) --
- _pmp_left_top_hang_(true) --
-
- else :
-
- (xpart llcorner multipar, ypart llxy[tpos]) --
- llxy[tpos] --
- _pmp_snapped_multi_pos_(ulxy[tpos]) --
- (xpart llcorner multipar, ypart ulxy[tpos]) --
-
- fi cycle ;
-
- save_multipar (i,1,multipar) ;
-
- else :
-
- multipar := if obey_multi_par_hang :
-
- _pmp_left_bottom_hang_(true) --
- llxy[tpos] --
- _pmp_snapped_multi_pos_(ulxy[tpos]) --
- _pmp_right_bottom_hang_(true) --
- _pmp_right_top_hang_(true) --
- _pmp_snapped_multi_pos_(urxy[fpos]) --
- lrxy[fpos] --
- _pmp_left_top_hang_(true) --
-
- else :
-
- (xpart llcorner multipar, ypart llxy[tpos]) --
- llxy[tpos] --
- _pmp_snapped_multi_pos_(ulxy[tpos]) --
- (xpart lrcorner multipar, ypart ulxy[tpos]) --
- (xpart urcorner multipar, ypart urxy[fpos]) --
- _pmp_snapped_multi_pos_(urxy[fpos]) --
- lrxy[fpos] --
- (xpart ulcorner multipar, ypart lrxy[fpos]) --
-
- fi cycle ;
-
- save_multipar (i,1,multipar) ;
-
- fi ;
-
- else :
-
- multipar := if obey_multi_par_hang :
-
- _pmp_left_bottom_hang_(false) --
- _pmp_right_bottom_hang_(false) --
- _pmp_right_top_hang_(false) --
- _pmp_snapped_multi_pos_(urxy[fpos]) --
- lrxy[fpos] --
- _pmp_left_top_hang_(false) --
-
- else :
-
- llcorner multipar --
- lrcorner multipar --
- (xpart urcorner multipar, ypart urxy[fpos]) --
- _pmp_snapped_multi_pos_(urxy[fpos]) --
- lrxy[fpos] --
- (xpart ulcorner multipar, ypart lrxy[fpos]) --
-
- fi cycle ;
-
- save_multipar (i,1,multipar) ;
-
- fi ;
-
- elseif (nxy[tpos]=RealPageNumber) and (InsideTextArea(i,par_stop_pos)) :
-
- % last one in chain
-
- nn := i ;
-
- if obey_multi_par_hang and obey_multi_par_more :
-
- multipar :=
- _pmp_x_left_top_hang_(i,true) --
- _pmp_x_right_top_hang_(i,true) --
- _pmp_x_right_bottom_hang_(i,true) --
- _pmp_snapped_multi_pos_(ulxy[tpos]) --
- llxy[tpos] --
- _pmp_x_left_bottom_hang_(i,true) --
- cycle ;
-
- else :
-
- multipar :=
- ulcorner multipar --
- urcorner multipar --
- (xpart lrcorner multipar, ypart urxy[tpos]) --
- _pmp_snapped_multi_pos_(ulxy[tpos]) --
- llxy[tpos] --
- (xpart llcorner multipar, ypart llxy[tpos]) --
- cycle ;
-
- fi ;
-
- save_multipar (i,3,multipar) ;
-
- elseif multi_column_first_page_hack and ((nxy[fpos]=RealPageNumber) and (nxy[tpos]>=RealPageNumber) and (NOfTextColumns>1)) :
-
- save_multipar (i,2,multipar) ;
-
- else :
- % handled later
- fi ;
-
- endfor ;
-
-
- % second loop
-
- if force_multi_par_chain or (ii > 1) :
-
- for i=ii+1 upto nn-1 :
-
- % rest of chain / todo : hang
-
- % hm, the second+ column in column sets now gets lost in a NOfTextColumns
-
- if (not check_multi_par_chain) or ((nxy[fpos]<RealPageNumber) and (nxy[tpos]>RealPageNumber)) :
-
- multipar := _pmp_set_multipar_(i) ;
-
- if obey_multi_par_hang and obey_multi_par_more :
-
- multipar :=
- _pmp_x_left_top_hang_(i,false) --
- _pmp_x_right_top_hang_(i,false) --
- _pmp_x_right_bottom_hang_(i,false) --
- _pmp_x_left_bottom_hang_(i,false) --
- cycle ;
-
- fi ;
-
- save_multipar(i,2,multipar) ;
-
- fi ;
-
- endfor ;
-
- fi ;
-
- % end of normal/fallback
-
- fi ;
-
- if span_multi_column_pars :
- endgroup ;
- fi ;
-
- % potential safeguard:
-
- % for i=1 upto nofmultipars :
- % if length p <= 4 :
- % multipars[i] := boundingbox(multipars[i]) ;
- % fi ;
- % end ;
-
- % quick hack for gb:
-
- one_piece_multi_par := (nofmultipars=1) and (pn=tn) ;
-
-enddef ;
-
-def boxgridoptions = withcolor .8red enddef ;
-def boxlineoptions = withcolor .8blue enddef ;
-def boxfilloptions = withcolor .8white enddef ;
-
-numeric boxgridtype ; boxgridtype := 0 ;
-numeric boxlinetype ; boxlinetype := 1 ;
-numeric boxfilltype ; boxfilltype := 1 ;
-numeric boxdashtype ; boxdashtype := 0 ;
-pair boxgriddirection ; boxgriddirection := up ;
-numeric boxgridwidth ; boxgridwidth := 1pt ;
-numeric boxlinewidth ; boxlinewidth := 1pt ;
-numeric boxlineradius ; boxlineradius := 0pt ;
-numeric boxfilloffset ; boxfilloffset := 0pt ;
-numeric boxgriddistance ; boxgriddistance := .5cm ;
-numeric boxgridshift ; boxgridshift := 0pt ;
-
-% def draw_box =
-% draw pxy boxlineoptions withpen pencircle scaled boxlinewidth ;
-% draw lxy -- rxy boxlineoptions withpen pencircle scaled boxgridwidth ;
-% enddef ;
-
-def draw_par = % 1 2 3 11 12
- do_draw_par(pxy) ; do_draw_par(txy) ; do_draw_par(bxy) ;
- for i = pxy, txy, bxy :
- if boxgridtype = 1 :
- boxgriddirection := origin ;
- draw baseline_grid (i,boxgriddirection,true ) boxgridoptions ;
- elseif boxgridtype = 2 :
- boxgriddirection := origin ;
- draw baseline_grid (i,boxgriddirection,false) boxgridoptions ;
- elseif boxgridtype = 3 :
- boxgriddirection := origin ;
- draw baseline_grid (i,boxgriddirection,true ) boxgridoptions ;
- draw baseline_grid (i,boxgriddirection,true ) shifted (0,ExHeight) boxgridoptions ;
- elseif boxgridtype = 4 :
- boxgriddirection := origin ;
- draw baseline_grid (i,boxgriddirection,true ) shifted (0,ExHeight/2) boxgridoptions ;
- elseif boxgridtype = 11 :
- draw graphic_grid(i,boxgriddistance,boxgriddistance,boxgriddistance/2,boxgriddistance/2) ;
- elseif boxgridtype = 12 :
- draw graphic_grid(i,boxgriddistance,boxgriddistance,0,0) ;
- fi ;
- endfor ;
-enddef ;
-
-def do_show_par (expr p, r, c) =
- if length(p) > 2 :
- for i=0 upto length(p) :
- draw fullcircle scaled r shifted point i of p withpen pencircle scaled .5pt withcolor c ;
- endfor ;
- fi ;
- draw p withpen pencircle scaled .5pt withcolor c ;
-enddef ;
-
-def show_par =
- if length(mxy) > 2 :
- draw mxy dashed evenly withpen pencircle scaled .5pt withcolor .5white ;
- fi ;
- do_show_par(txy, 4pt, .5green) ;
- do_show_par(bxy, 6pt, .5blue ) ;
- do_show_par(pxy, 8pt, .5red ) ;
- draw pref withpen pencircle scaled 2pt ;
-enddef ;
-
-def sort_multi_pars =
- if nofmultipars>1 :
- begingroup ;
- save _p_, _n_ ; path _p_ ; numeric _n_ ;
- for i := 1 upto nofmultipars :
- if multilocs[i] = 3 :
- _p_ := multipars[nofmultipars] ;
- multipars[nofmultipars] := multipars[i] ;
- multipars[i] := _p_ ;
- _n_ := multirefs[nofmultipars] ;
- multirefs[nofmultipars] := multirefs[i] ;
- multirefs[i] := _n_ ;
- _n_ := multilocs[nofmultipars] ;
- multilocs[nofmultipars] := multilocs[i] ;
- multilocs[i] := _n_ ;
- fi ;
- endfor ;
- endgroup ;
- fi ;
-enddef ;
-
-def collapse_multi_pars =
- if nofmultipars>1 :
- begingroup ;
- save _nofmultipars_ ; numeric _nofmultipars_ ;
- _nofmultipars_ := 1 ;
- sort_multi_pars ; % block not in order: 1, 3, 2....
- for i:=1 upto nofmultipars-1 :
- if (round(xpart(llcorner multipars[i]-llcorner multipars[i+1]))=0) and
- (round(xpart(lrcorner multipars[i]-lrcorner multipars[i+1]))=0) :
- multilocs[_nofmultipars_] := multilocs[i+1] ;
- multirefs[_nofmultipars_] := multirefs[i+1] ;
- multipars[_nofmultipars_] :=
- ulcorner multipars[_nofmultipars_] --
- urcorner multipars[_nofmultipars_] --
- lrcorner multipars[i+1] --
- llcorner multipars[i+1] -- cycle ;
- else :
- _nofmultipars_ := _nofmultipars_ + 1 ;
- multipars[_nofmultipars_] := multipars[i+1] ;
- multilocs[_nofmultipars_] := multilocs[i+1] ;
- multirefs[_nofmultipars_] := multirefs[i+1] ;
- fi ;
- endfor ;
- nofmultipars := _nofmultipars_ ;
- endgroup ;
- fi ;
-enddef ;
-
-def draw_multi_pars =
- for i=1 upto nofmultipars :
- do_draw_par(multipars[i]) ;
- if boxgridtype= 1 :
- draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) ;
- elseif boxgridtype= 2 :
- draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,false) ;
- elseif boxgridtype= 3 :
- draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) ;
- draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) shifted (0,ExHeight) ;
- elseif boxgridtype= 4 :
- draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) shifted (0,ExHeight/2) ;
- elseif boxgridtype=11 :
- draw graphic_grid(multipars[i],boxgriddistance,boxgriddistance,boxgriddistance/2,boxgriddistance/2) ;
- elseif boxgridtype=12 :
- draw graphic_grid(multipars[i],boxgriddistance,boxgriddistance,0,0) ;
- fi ;
- endfor ;
-enddef ;
-
-def show_multi_pars =
- for i=1 upto nofmultipars :
- do_show_par(multipars[i], 6pt, .5blue) ;
- endfor ;
-enddef ;
-
-vardef do_draw_par (expr p) =
- if (length p>2) and (bbwidth(p)>1) and (bbheight(p)>1) :
- save pp ; path pp ;
- if (boxlineradius>0) and (boxlinetype=2) :
- pp := p cornered boxlineradius ;
- else :
- pp := p ;
- fi ;
- if boxfilltype>0 :
- if boxfilloffset>0 :
- % temporary hack
- begingroup ;
- interim linejoin := mitered ;
- filldraw pp boxfilloptions withpen pencircle scaled (2*boxfilloffset) ;
- endgroup ;
- else :
- fill pp boxfilloptions ;
- fi ;
- fi ;
- if boxlinetype>0 :
- draw pp boxlineoptions withpen pencircle scaled boxlinewidth ;
- fi ;
- fi ;
-enddef ;
-
-vardef baseline_grid (expr pxy, pdir, at_baseline) =
- save width ; width := bbwidth(pxy) ;
- save height ; height := bbheight(pxy) ;
- if (par_line_height>0) and (height>1) and (width>1) and (boxgridwidth>0) :
- save i, grid, bb ; picture grid ; pair start ; path bb ;
- def _do_ (expr start) =
- % 1 = normal, 2 = with background (i.e. no shine-through)
- if boxdashtype = 2 :
- draw start -- start shifted (width,0)
- withpen pencircle scaled boxgridwidth
- boxfilloptions ;
- fi ;
- draw start -- start shifted (width,0)
- if boxdashtype > 0 :
- dashed evenly
- fi
- withpen pencircle scaled boxgridwidth
- boxgridoptions ;
- enddef ;
- grid := image ( % fails with inlinespace
- if pdir=up :
- for i = if at_baseline : par_strut_depth else : 0 fi step par_line_height until max(height,par_line_height) :
- _do_ (llcorner pxy shifted (0,+i)) ;
- endfor ;
- else :
- for i = if at_baseline : par_strut_height else : 0 fi step par_line_height until height :
- _do_ (ulcorner pxy shifted (0,-i)) ;
- endfor ;
- fi ;
- ) ;
- clip grid to pxy ;
- bb := boundingbox grid ;
- grid := grid shifted (0,boxgridshift) ;
- setbounds grid to bb ;
- grid
- else :
- nullpicture
- fi
-enddef ;
-
-vardef graphic_grid (expr pxy, dx, dy, x, y) =
- if (bbheight(pxy)>dy) and (bbwidth(pxy)>dx) and (boxgridwidth>0) :
- save grid ; picture grid ;
- grid := image (
- for i = xpart llcorner pxy step dx until xpart lrcorner pxy :
- draw (i,ypart llcorner pxy) -- (i,ypart ulcorner pxy) withpen pencircle scaled boxgridwidth ;
- endfor ;
- for i = ypart llcorner pxy step dy until ypart ulcorner pxy :
- draw (xpart llcorner pxy,i) -- (xpart lrcorner pxy,i) withpen pencircle scaled boxgridwidth ;
- endfor
- ) shifted (x,y) ;
- clip grid to pxy ;
- grid
- else :
- nullpicture
- fi
-enddef ;
-
-def anchor_box (expr n,x,y,w,h,d) =
- currentpicture := currentpicture shifted (-x,-y) ;
-enddef ;
-
-let draw_area = draw_box ;
-let anchor_area = anchor_box ;
-let anchor_par = anchor_box ;
-
-numeric sync_n[], sync_p[][], sync_w[][], sync_h[][], sync_d[][], sync_t[][] ;
-pair sync_xy[][] ; color sync_c[][] ;
-
-def ResetSyncTasks =
- path SyncPaths[] ; numeric SyncTasks[], NOfSyncPaths, CurrentSyncClass ;
- NOfSyncPaths := CurrentSyncClass := 0 ;
- if unknown SyncLeftOffset : numeric SyncLeftOffset ; SyncLeftOffset := 0 ; fi ;
- if unknown SyncWidth : numeric SyncWidth ; SyncWidth := 0 ; fi ;
- if unknown SyncThreshold : numeric SyncThreshold ; SyncThreshold := LineHeight ; fi ;
- if unknown SyncColor : color SyncColor ; SyncColor := .5white ; fi ;
- if (SyncLeftOffset = 0) and (SyncWidth = 0) :
- SyncWidth := if known TextWidth : TextWidth else : -1cm fi ;
- fi ;
-enddef ;
-
-ResetSyncTasks ;
-
-vardef SyncBox(expr n, i, leftoffset, width, topoffset, bottomoffset) =
- save o ; pair o ; o := (xpart llcorner PlainTextArea,ypart sync_xy[n][i]) ;
- o shifted (leftoffset,sync_h[n][i]+topoffset) --
- o shifted (width+leftoffset,sync_h[n][i]+topoffset) --
- o shifted (width+leftoffset,bottomoffset) --
- o shifted (leftoffset,bottomoffset) -- cycle
-enddef ;
-
-def SetSyncColor(expr n, i, c) =
- sync_c[n][i] := c ;
-enddef ;
-
-def SetSyncThreshold(expr n, i, th) =
- sync_th[n][i] := th ;
-enddef ;
-
-vardef TheSyncColor(expr n, i) =
- if known sync_c[n][i] : sync_c[n][i] else : SyncColor fi
-enddef ;
-
-vardef TheSyncThreshold(expr n, i) =
- if known sync_th[n][i] : sync_th[n][i] else : SyncThreshold fi
-enddef ;
-
-vardef PrepareSyncTasks(expr n, collapse, extendtop, prestartnext) =
- ResetSyncTasks ;
- if known sync_n[n] :
- CurrentSyncClass := n ;
- save ok, l, d ; boolean ok ; ok := false ; NOfSyncPaths := l := 0 ;
- for i=1 upto sync_n[n] :
- if RealPageNumber > sync_p[n][i] :
- l := i ;
- elseif RealPageNumber = sync_p[n][i] :
- NOfSyncPaths := NOfSyncPaths + 1 ;
- if not ok :
- if i>1 :
- if sync_t[n][i-1] = sync_t[n][i] :
- SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, PaperHeight, -PaperHeight) ;
- SyncTasks[NOfSyncPaths] := i ;
- else :
- SyncPaths[NOfSyncPaths] := SyncBox(n, i-1, SyncLeftOffset, SyncWidth, PaperHeight, -PaperHeight) ;
- SyncTasks[NOfSyncPaths] := i-1 ;
- NOfSyncPaths := NOfSyncPaths + 1 ;
- SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, 0, -PaperHeight) ;
- SyncTasks[NOfSyncPaths] := i ;
- fi ;
- else :
- SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, 0, -PaperHeight) ;
- SyncTasks[NOfSyncPaths] := i ;
- fi ;
- else :
- SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, 0, -PaperHeight) ;
- SyncTasks[NOfSyncPaths] := i ;
- fi ;
- ok := true ;
- fi ;
- endfor ;
- if (NOfSyncPaths = 0) and (l > 0) :
- NOfSyncPaths := 1 ;
- SyncPaths[NOfSyncPaths] := SyncBox(n, l, SyncLeftOffset, SyncWidth, PaperHeight, -PaperHeight) ;
- SyncTasks[NOfSyncPaths] := l ;
- fi ;
- if NOfSyncPaths > 0 :
- for i = 1 upto NOfSyncPaths-1 :
- SyncPaths[i] := topboundary SyncPaths[i] -- reverse topboundary SyncPaths[i+1] -- cycle ;
- endfor ;
- if unknown SyncThresholdMethod :
- numeric SyncThresholdMethod ; SyncThresholdMethod := 2 ;
- fi ;
- if extendtop :
- if SyncThresholdMethod = 1 :
- if NOfSyncPaths>1 :
- d := ypart (ulcorner PlainTextArea - sync_xy[n][SyncTasks[2]]) ;
- if (SyncTasks[2]>1) and (d > 0pt) and (d <= TheSyncThreshold(n,sync_t[n][SyncTasks[2]])) and (sync_p[n][SyncTasks[2]] = RealPageNumber) :
- SyncPaths[2] := SyncPaths[2] topenlarged PaperHeight ;
- fi ;
- fi ;
- else :
- for i = 1 upto NOfSyncPaths :
- d := ypart (ulcorner PlainTextArea - sync_xy[n][SyncTasks[i]]) ;
- if (d > 0) and (d <= TheSyncThreshold(n,sync_t[n][SyncTasks[i]])) and (sync_p[n][SyncTasks[i]] = RealPageNumber) :
- SyncPaths[i] := SyncPaths[i] topenlarged PaperHeight ;
- fi ;
- endfor ;
- fi ;
- fi ;
- if prestartnext :
- if NOfSyncPaths>1 :
- if SyncTasks[NOfSyncPaths] < sync_n[n] : % there is a next one
- d := ypart (ulcorner PlainTextArea - sync_xy[n][SyncTasks[NOfSyncPaths]+1]) ;
- if (d > 0) and (d <= TheSyncThreshold(n, sync_t[n][SyncTasks[i]])) and (sync_p[n][SyncTasks[NOfSyncPaths]+1] = RealPageNumber+1) :
- SyncPaths[NOfSyncPaths+1] :=
- (xpart ulcorner SyncPaths[NOfSyncPaths],ypart llcorner PlainTextArea) --
- (xpart urcorner SyncPaths[NOfSyncPaths],ypart llcorner PlainTextArea) --
- lrcorner SyncPaths[NOfSyncPaths] --
- llcorner SyncPaths[NOfSyncPaths] -- cycle ;
- SyncTasks[NOfSyncPaths+1] := SyncTasks[NOfSyncPaths]+1 ;
- NOfSyncPaths := NOfSyncPaths + 1 ;
- fi ;
- fi ;
- fi ;
- else :
- if NOfSyncPaths>1 :
- d := ypart (sync_xy[n][SyncTasks[NOfSyncPaths]] - llcorner PlainTextArea) ;
- if (d < TheSyncThreshold(n, SyncTasks[NOfSyncPaths])) :
- NOfSyncPaths := NOfSyncPaths - 1 ;
- SyncPaths[NOfSyncPaths] := SyncPaths[NOfSyncPaths] bottomenlarged PaperHeight ;
- fi ;
- fi ;
- fi ;
- if (NOfSyncPaths>1) and collapse :
- save j ; numeric j ; j := 1 ;
- for i = 2 upto NOfSyncPaths :
- if sync_t[n][SyncTasks[i]] = sync_t[n][SyncTasks[j]] :
- SyncPaths[j] := boundingbox image (draw SyncPaths[i] ; draw SyncPaths[j] ; ) ;
- SyncTasks[j] := SyncTasks[i] ;
- else :
- j := j + 1 ;
- SyncPaths[j] := SyncPaths[i] ;
- SyncTasks[j] := SyncTasks[i] ;
- fi ;
- endfor ;
- NOfSyncPaths := j ;
- fi ;
- fi ;
- fi ;
-enddef ;
-
-def SyncTask(expr n) =
- if known SyncTasks[n] : SyncTasks[n] else : 0 fi
-enddef ;
-
-def FlushSyncTasks =
- for i = 1 upto NOfSyncPaths :
- ProcessSyncTask(SyncPaths[i], TheSyncColor(CurrentSyncClass,sync_t[CurrentSyncClass][SyncTasks[i]])) ;
- endfor ;
-enddef ;
-
-def ProcessSyncTask(expr p, c) =
- fill p withcolor c ;
-enddef ;
diff --git a/metapost/context/base/mpiv/mp-tool.mpiv b/metapost/context/base/mpiv/mp-tool.mpiv
index 903438b72..e2f59acfd 100644
--- a/metapost/context/base/mpiv/mp-tool.mpiv
+++ b/metapost/context/base/mpiv/mp-tool.mpiv
@@ -3159,6 +3159,15 @@ def endglyph =
endfig ;
enddef ;
+def beginfont(expr name) =
+ begingroup;
+ passvariable("fontname",name) ;
+enddef ;
+
+def endfont =
+ endgroup;
+enddef ;
+
%D Dimensions have never been an issue as traditional MP can't make that large
%D pictures, but with double mode we need a catch:
diff --git a/metapost/context/base/mpxl/metafun.mpxl b/metapost/context/base/mpxl/metafun.mpxl
index ea9c8a791..2c21110de 100644
--- a/metapost/context/base/mpxl/metafun.mpxl
+++ b/metapost/context/base/mpxl/metafun.mpxl
@@ -15,32 +15,47 @@
%D prevent dependency problems and in the end even may use a patched version,
%D we prefer to use a copy.
-boolean contextlmtxmode ; contextlmtxmode := if known fontmaking : false else: true fi;
+% We only get a callback when the property > 0
-input "mp-base.mpiv" ;
-input "mp-tool.mpiv" ;
+def primitive = setproperty 1 : enddef; % not to be used
+def permanent = setproperty 2 : enddef;
+def immutable = setproperty 3 : enddef;
+def frozen = setproperty 4 : enddef; % not yet used
+def mutable = setproperty -3 : enddef; % not yet used
+
+permanent permanent, immutable, mutable, primitive, frozen ; % we reserve frozen
+
+boolean contextlmtxmode ; contextlmtxmode := true ; immutable contextlmtxmode ;
+
+% But it will move here:
+
+input "mp-base.mpxl" ;
+input "mp-tool.mpxl" ;
input "mp-luas.mpxl" ;
input "mp-mlib.mpxl" ;
input "mp-math.mpxl" ;
input "mp-cont.mpxl" ;
input "mp-page.mpxl" ;
-input "mp-butt.mpiv" ;
-input "mp-shap.mpiv" ;
-input "mp-grph.mpiv" ;
-input "mp-grid.mpiv" ;
-input "mp-form.mpiv" ;
-input "mp-figs.mpiv" ;
-input "mp-func.mpiv" ;
-input "mp-node.mpiv" ;
-input "mp-apos.mpiv" ;
-input "mp-abck.mpiv" ;
-input "mp-blob.mpiv" ;
-
-input "mp-lmtx.mpxl" ; % playground, not official
+input "mp-butt.mpxl" ;
+input "mp-shap.mpxl" ;
+input "mp-grph.mpxl" ;
+input "mp-grid.mpxl" ;
+input "mp-form.mpxl" ;
+input "mp-figs.mpxl" ;
+input "mp-func.mpxl" ;
+input "mp-node.mpxl" ;
+input "mp-apos.mpxl" ;
+input "mp-abck.mpxl" ;
+input "mp-blob.mpxl" ;
+input "mp-lmtx.mpxl" ;
string metafunversion ; metafunversion = "metafun xl " & mfun_timestamp;
+immutable metafunversion ;
+
let normalend = end ;
def end = ; message "" ; message metafunversion ; message "" ; endinput ; enddef ;
def bye = ; message "" ; message metafunversion ; message "" ; endinput ; enddef ;
+
+overloadmode := 1 ;
diff --git a/metapost/context/base/mpxl/minifun.mpxl b/metapost/context/base/mpxl/minifun.mpxl
index 70ec72a82..8da5f1d37 100644
--- a/metapost/context/base/mpxl/minifun.mpxl
+++ b/metapost/context/base/mpxl/minifun.mpxl
@@ -14,18 +14,23 @@
%D This is a minimal \METAFUN\ instance which can be handy for isolated
%D subruns.
-boolean contextlmtxmode ; contextlmtxmode := if known fontmaking : false else: true fi;
+def primitive = setproperty 1 : enddef; % not to be used
+def permanent = setproperty 2 : enddef;
+def immutable = setproperty 3 : enddef;
+def frozen = setproperty 4 : enddef; % not yet used
+def mutable = setproperty -3 : enddef; % not yet used
-prologues := 0 ;
-mpprocset := 1 ;
+permanent permanent, immutable, mutable, primitive, frozen ; % we reserve frozen
+
+boolean contextlmtxmode ; contextlmtxmode := true ; immutable contextlmtxmode ;
input "mp-base.mpiv" ;
-input "mp-tool.mpiv" ;
+input "mp-tool.mpxl" ;
input "mp-mlib.mpxl" ;
input "mp-luas.mpxl" ;
input "mp-math.mpxl" ;
input "mp-cont.mpxl" ;
-input "mp-page.mpiv" ;
+input "mp-page.mpxl" ;
string minifunversion ; minifunversion = "minifun xl " & mfun_timestamp;
diff --git a/metapost/context/base/mpxl/mp-abck.mpxl b/metapost/context/base/mpxl/mp-abck.mpxl
new file mode 100644
index 000000000..650a76ebb
--- /dev/null
+++ b/metapost/context/base/mpxl/mp-abck.mpxl
@@ -0,0 +1,291 @@
+%D \module
+%D [ file=mp-abck.mpiv,
+%D version=2012.02.19, % was mp-core: 1999.08.01, anchoring
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=anchored background macros,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+if known context_abck : endinput ; fi ;
+
+boolean context_abck ; context_abck := true ; immutable context_abck ;
+
+path multiregs[], % region used for multipar (tracing only)
+ multipars[], % effective area (shape)
+ multibox ; % main boundingbox (of main region)
+
+string multikind[] ; % region state: single | first | middle | last (new method)
+
+numeric multilocs[], % 1=begin 2=between 3=end (old method)
+ nofmultipars ; % number of calculated areas
+
+numeric par_strut_height,
+ par_strut_depth,
+ par_line_height ;
+
+nofmultipars := 0 ;
+par_strut_height := 0 ;
+par_strut_depth := 0 ;
+par_line_height := 0 ;
+
+def boxgridoptions = withcolor .8red enddef ;
+def boxlineoptions = withcolor .8blue enddef ;
+def boxfilloptions = withcolor .8white enddef ;
+
+numeric boxgridtype ; boxgridtype := 0 ;
+numeric boxlinetype ; boxlinetype := 1 ;
+numeric boxfilltype ; boxfilltype := 1 ;
+numeric boxdashtype ; boxdashtype := 0 ;
+pair boxgriddirection ; boxgriddirection := up ;
+numeric boxgridwidth ; boxgridwidth := 1pt ;
+numeric boxlinewidth ; boxlinewidth := 1pt ;
+numeric boxlineradius ; boxlineradius := 0 ;
+numeric boxlineoffset ; boxlineoffset := 0 ;
+numeric boxfilloffset ; boxfilloffset := 0 ;
+numeric boxgriddistance ; boxgriddistance := .5cm ;
+numeric boxgridshift ; boxgridshift := 0 ;
+
+permanent multipars, multiregs, multibox, multikind, multilocs, nofmultipars ;
+
+vardef abck_draw_path(expr p) =
+ if (length p > 2) and (bbwidth(p) > 1) and (bbheight(p) > 1) :
+ save pp ; path pp ;
+ pp := p if (boxlineradius>0) and (boxlinetype=2) : cornered boxlineradius fi ;
+ if boxfilltype > 0 :
+ if boxfilloffset > 0 :
+ interim linejoin := mitered ;
+ filldraw pp boxfilloptions withpen pencircle scaled (2*boxfilloffset) ;
+ else :
+ fill pp boxfilloptions ;
+ fi ;
+ fi ;
+ if boxlinetype > 0 :
+ draw pp boxlineoptions withpen pencircle scaled boxlinewidth ;
+ fi ;
+ fi ;
+enddef ;
+
+def abck_grid_line(expr start, width) =
+ % 1 = normal, 2 = with background (i.e. no shine-through)
+ if boxdashtype = 2 :
+ draw start -- start shifted (width,0)
+ withpen pencircle scaled boxgridwidth
+ boxfilloptions ;
+ fi ;
+ draw start -- start shifted (width,0)
+ if boxdashtype > 0 :
+ dashed evenly
+ fi
+ withpen pencircle scaled boxgridwidth
+ boxgridoptions ;
+enddef ;
+
+vardef abck_baseline_grid(expr pxy, pdir, at_baseline) =
+ save width ; width := bbwidth(pxy) ;
+ save height ; height := bbheight(pxy) ;
+ if (par_line_height > 0) and (height > 1) and (width > 1) and (boxgridwidth > 0) :
+ save i, grid, bb ; picture grid ; pair start ; path bb ;
+ grid := image ( % fails with inlinespace
+ if pdir = up :
+ for i = if at_baseline : par_strut_depth else : 0 fi step par_line_height until max(height,par_line_height) :
+ abck_grid_line(llcorner pxy shifted (0,+i),width) ;
+ endfor ;
+ else :
+ for i = if at_baseline : par_strut_height else : 0 fi step par_line_height until height :
+ abck_grid_line(ulcorner pxy shifted (0,-i),width) ;
+ endfor ;
+ fi ;
+ ) ;
+ clip grid to pxy ;
+ bb := boundingbox grid ;
+ grid := grid shifted (0,boxgridshift) ;
+ setbounds grid to bb ;
+ grid
+ else :
+ nullpicture
+ fi
+enddef ;
+
+vardef abck_graphic_grid(expr pxy, dx, dy, x, y) =
+ if (bbheight(pxy) > dy) and (bbwidth(pxy) > dx) and (boxgridwidth > 0) :
+ save grid ; picture grid ;
+ grid := image (
+ for i = xpart llcorner pxy step dx until xpart lrcorner pxy :
+ draw (i,ypart llcorner pxy) -- (i,ypart ulcorner pxy) withpen pencircle scaled boxgridwidth ;
+ endfor ;
+ for i = ypart llcorner pxy step dy until ypart ulcorner pxy :
+ draw (xpart llcorner pxy,i) -- (xpart lrcorner pxy,i) withpen pencircle scaled boxgridwidth ;
+ endfor
+ ) shifted (x,y) ;
+ clip grid to pxy ;
+ grid
+ else :
+ nullpicture
+ fi
+enddef ;
+
+def draw_multi_pars =
+ for i=1 upto nofmultipars :
+ abck_draw_path(multipars[i]) ;
+ if boxgridtype = 1 :
+ draw abck_baseline_grid(multipars[i],if multilocs[i]=1: down else: up fi,true) ;
+ elseif boxgridtype = 2 :
+ draw abck_baseline_grid(multipars[i],if multilocs[i]=1: down else: up fi,false) ;
+ elseif boxgridtype = 3 :
+ draw abck_baseline_grid(multipars[i],if multilocs[i]=1: down else: up fi,true) ;
+ draw abck_baseline_grid(multipars[i],if multilocs[i]=1: down else: up fi,true) shifted (0,ExHeight) ;
+ elseif boxgridtype = 4 :
+ draw abck_baseline_grid(multipars[i],if multilocs[i]=1: down else: up fi,true) shifted (0,ExHeight/2) ;
+ elseif boxgridtype = 11 :
+ draw abck_graphic_grid(multipars[i],boxgriddistance,boxgriddistance,boxgriddistance/2,boxgriddistance/2) ;
+ elseif boxgridtype = 12 :
+ draw abck_graphic_grid(multipars[i],boxgriddistance,boxgriddistance,0,0) ;
+ fi ;
+ endfor ;
+enddef ;
+
+def show_multi_pars =
+ for i=1 upto nofmultipars :
+ drawpathwithpoints multipars[i] withcolor .5blue ;
+ endfor ;
+enddef ;
+
+def show_multi_kind =
+ for i=1 upto nofmultipars :
+ fill multipars[i]
+ withcolor
+ if multikind[i] = "single" : yellow
+ elseif multikind[i] = "first" : red
+ elseif multikind[i] = "middle" : green
+ elseif multikind[i] = "last" : blue
+ fi
+ withtransparency (1,.5)
+ ;
+ endfor ;
+enddef ;
+
+def multi_side_draw_options = enddef ;
+
+def draw_multi_side =
+ begingroup ; save p ; picture p ;
+ for i=1 upto nofmultipars :
+ p := image ( fill leftboundary multipars[i]
+ shifted (-boxlineoffset,0)
+ rightenlarged boxlinewidth boxlineoptions ;
+ ) ;
+ setbounds p to multipars[i] ;
+ draw p ;
+ endfor ;
+ endgroup ;
+enddef ;
+
+def draw_multi_side_path text t =
+ begingroup ; save p ; picture p ;
+ for i=1 upto nofmultipars :
+ p := image ( draw leftboundary multipars[i]
+ shifted (-boxlineoffset,0)
+ withpen pensquare scaled boxlinewidth boxlineoptions t ;
+ ) ;
+ setbounds p to multipars[i] ;
+ draw p ;
+ endfor ;
+ endgroup ;
+enddef ;
+
+% some extras
+
+% For the moment we keep these as they can be in use but they will disappear.
+
+pair lxy[], rxy[], cxy[], llxy[], lrxy[], ulxy[], urxy[] ;
+path pxy[] ;
+numeric hxy[], wxy[], dxy[], nxy[] ;
+
+def box_found (expr n,x,y,w,h,d) =
+ not ((x=0) and (y=0) and (w=0) and (h=0) and (d=0))
+enddef ;
+
+def initialize_box_pos (expr pos,n,x,y,w,h,d) =
+ pair lxy, rxy, cxy, llxy, lrxy, ulxy, urxy ;
+ path pxy ; numeric hxy, wxy, dxy, nxy;
+ lxy := (x,y) ;
+ llxy := (x,y-d) ;
+ lrxy := (x+w,y-d) ;
+ urxy := (x+w,y+h) ;
+ ulxy := (x,y+h) ;
+ wxy := w ;
+ hxy := h ;
+ dxy := d ;
+ rxy := lxy shifted (wxy,0) ;
+ pxy := llxy--lrxy--urxy--ulxy--cycle ;
+ cxy := center pxy ;
+ nxy := n ;
+ freeze_box(pos) ;
+enddef ;
+
+def freeze_box (expr pos) =
+ lxy[pos] := lxy ;
+ llxy[pos] := llxy ;
+ lrxy[pos] := lrxy ;
+ urxy[pos] := urxy ;
+ ulxy[pos] := ulxy ;
+ wxy[pos] := wxy ;
+ hxy[pos] := hxy ;
+ dxy[pos] := dxy ;
+ rxy[pos] := rxy ;
+ pxy[pos] := pxy ;
+ cxy[pos] := cxy ;
+ nxy[pos] := nxy ;
+enddef ;
+
+def initialize_box (expr n,x,y,w,h,d) =
+ numeric bpos ; bpos := 0 ; initialize_box_pos(bpos,n,x,y,w,h,d) ;
+enddef ;
+
+def anchor_box (expr n,x,y,w,h,d) =
+ currentpicture := currentpicture shifted (-x,-y) ;
+enddef ;
+
+def draw_box = % for old times sake
+ draw pxy boxlineoptions withpen pencircle scaled boxlinewidth ;
+ draw lxy -- rxy boxlineoptions withpen pencircle scaled boxgridwidth ;
+enddef ;
+
+def draw_free_region(expr width, height, depth, loffset, roffset, toffset, boffset) =
+
+ begingroup ; save b, o, l ; path b, o, l[] ; save d ;
+
+ b := fullsquare
+ xysized(width,height+depth) ;
+ o := b
+ topenlarged toffset
+ bottomenlarged boffset
+ leftenlarged loffset
+ rightenlarged roffset ;
+ d := max(PaperWidth,PaperHeight) ;
+
+ fill o withcolor .5white ;
+ fill b withcolor .7white ;
+
+ interim linecap := butt ;
+
+ l[1] := topboundary (topboundary o leftenlarged d rightenlarged d) ;
+ l[2] := bottomboundary (bottomboundary o leftenlarged d rightenlarged d) ;
+ l[3] := leftboundary (leftboundary o topenlarged d bottomenlarged d) ;
+ l[4] := rightboundary (rightboundary o topenlarged d bottomenlarged d) ;
+
+ for i=1 upto 4 :
+ draw l[i] withpen pencircle scaled 1bp withcolor white ;
+ draw l[i] withpen pencircle scaled 1bp dashed (evenly scaled 1bp) withcolor black ;
+ endfor ;
+
+ setbounds currentpicture to b ;
+
+ endgroup ;
+
+enddef ;
+
diff --git a/metapost/context/base/mpxl/mp-apos.mpxl b/metapost/context/base/mpxl/mp-apos.mpxl
new file mode 100644
index 000000000..f9c8b28dc
--- /dev/null
+++ b/metapost/context/base/mpxl/mp-apos.mpxl
@@ -0,0 +1,104 @@
+%D \module
+%D [ file=mp-apos.mpiv,
+%D version=2012.02.19, % was mp-core: 1999.08.01, anchoring
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=anchored background macros,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+if known context_apos : endinput ; fi ;
+
+boolean context_apos ; context_apos := true ; immutable context_apos ;
+
+path posboxes[],
+ posregions[] ;
+
+numeric pospages[],
+ nofposboxes ;
+
+nofposboxes := 0 ;
+
+def boxlineoptions = withcolor .8blue enddef ;
+def boxfilloptions = withcolor .8white enddef ;
+
+permanent posboxes, posregions, pospages, nofposboxes ;
+
+def connect_positions =
+ if nofposboxes = 2 :
+ pickup pencircle scaled boxlinewidth ;
+ path pa ; pa := posboxes[1] enlarged boxlineoffset ;
+ path pb ; pb := posboxes[2] enlarged boxlineoffset ;
+ if pospages[1] = pospages[2] :
+ draw posboxes[1] boxlineoptions ;
+ path pc ; pc := center pa {up} .. {down} center pb ;
+ pair cc ; cc := (pc intersection_point pa) ;
+ if intersection_found :
+ pc := pc cutbefore cc ;
+ cc := (pc intersection_point pb) ;
+ if intersection_found :
+ pc := pc cutafter cc ;
+ drawarrow pc boxlineoptions ;
+ drawarrow reverse pc boxlineoptions ;
+ fi ;
+ fi ;
+ elseif pospages[1] == RealPageNumber :
+ draw posboxes[1] boxlineoptions ;
+ path pc ; pc := center pa {up} ... {right} urcorner (posregions[1] enlarged (20pt,20pt)) ;
+ pair cc ; cc := (pc intersection_point pa) ;
+ if intersection_found :
+ pc := pc cutbefore cc ;
+ drawarrow pc boxlineoptions ;
+ fi ;
+ elseif pospages[2] == RealPageNumber :
+ draw posboxes[2] boxlineoptions ;
+ path pc ; pc := ulcorner (posregions[2] enlarged (20pt,20pt)) {right} ... {down} center pb ;
+ pair cc ; cc := (pc intersection_point pb) ;
+ if intersection_found :
+ pc := pc cutafter cc ;
+ drawarrow pc boxlineoptions ;
+ fi ;
+ fi ;
+ fi ;
+enddef ;
+
+% anch-bar:
+
+def anch_sidebars_draw (expr firstpage, lastpage, yfirst, ylast, height, depth,
+ x, y, w, h, alternative, distance, linewidth, linecolor, topoffset, bottomoffset) =
+ % beware, we anchor at (x,y)
+ begingroup ;
+ if alternative = 1 :
+ interim linecap := rounded ;
+ else :
+ interim linecap := butt ;
+ fi ;
+ save a, b ; pair a, b ;
+ if firstpage = lastpage :
+ a := (-distance,yfirst+height-y) ;
+ b := (-distance,ylast-depth-y) ;
+ elseif RealPageNumber = firstpage :
+ a := (-distance,yfirst+height-y) ;
+ b := (-distance,0) ;
+ elseif RealPageNumber = lastpage :
+ a := (-distance,h) ;
+ b := (-distance,ylast-depth-y) ;
+ else :
+ a := (-distance,h) ;
+ b := (-distance,0) ;
+ fi ;
+ a := (xpart a, min(ypart a + topoffset, h)) ;
+ b := (xpart b, max(ypart b - bottomoffset,0)) ;
+ draw
+ a -- b
+ if alternative = 1 :
+ dashed (withdots scaled (linewidth/2))
+ fi
+ withpen pencircle scaled linewidth
+ withcolor linecolor ;
+ endgroup ;
+enddef ;
diff --git a/metapost/context/base/mpxl/mp-base.mpxl b/metapost/context/base/mpxl/mp-base.mpxl
new file mode 100644
index 000000000..df7280186
--- /dev/null
+++ b/metapost/context/base/mpxl/mp-base.mpxl
@@ -0,0 +1,1047 @@
+% This is a reformatted copy of the plain.mp file. We use a copy
+% because (1) we want to make sure that there are no unresolved
+% dependencies, and (2) we may patch this file eventually.
+
+% This file gives the macros for plain MetaPost It contains all the
+% features of plain METAFONT except those specific to font-making.
+% There are also a number of macros for labeling figures, etc.
+
+% For practical reasons I have moved some new code here (and might
+% remove some code as well). After all, there is no development in
+% this format.
+
+string base_name, base_version ;
+
+base_name := "plain" ;
+base_version := "1.004 for metafun iv and xl" ;
+
+message "loading metafun, including plain.mp version " & base_version ;
+
+delimiters () ; % this makes parentheses behave like parentheses
+
+def upto = step 1 until enddef ;
+def downto = step -1 until enddef ;
+
+def exitunless expr c =
+ exitif not c
+enddef ;
+
+let relax = \ ; % ignore the word relax, as in TeX
+let \\ = \ ; % double relaxation is like single
+
+def [[ = [ [ enddef ;
+def ]] = ] ] enddef ;
+
+def -- = {curl 1} .. {curl 1} enddef ;
+def --- = .. tension infinity .. enddef ;
+def ... = .. tension atleast 1 .. enddef ;
+
+def gobble primary g = enddef ;
+primarydef g gobbled gg = enddef ;
+
+def hide(text t) =
+ exitif numeric begingroup t ; endgroup ;
+enddef ;
+
+def ??? =
+ hide (
+ interim showstopping := 1 ;
+ showdependencies
+ )
+enddef ;
+
+def stop expr s =
+ message s ;
+ gobble readstring
+enddef ;
+
+% \\ and ??? can go
+
+permanent $, $$, (, ), upto, downto, exitunless, relax, \\, [[, ]], --, ---, ..., gobble, gobbled, stop, ?, ??? ;
+
+% These need to be adapted to a library approach:
+
+warningcheck := 1 ;
+
+def interact = % sets up to make "show" commands stop
+ hide (
+ showstopping := 1 ;
+ tracingonline := 1 ;
+ )
+enddef ;
+
+def loggingall = % puts tracing info into the log
+ tracingcommands := 3 ;
+ tracingtitles := 1 ;
+ tracingequations := 1 ;
+ tracingcapsules := 1 ;
+ tracingspecs := 2 ;
+ tracingchoices := 1 ;
+ tracingstats := 1 ;
+ tracingoutput := 1 ;
+ tracingmacros := 1 ;
+ tracingrestores := 1 ;
+enddef ;
+
+def tracingall = % turns on every form of tracing
+ tracingonline := 1 ;
+ showstopping := 1 ;
+ loggingall ;
+enddef ;
+
+def tracingnone = % turns off every form of tracing
+ tracingcommands := 0 ;
+ tracingtitles := 0 ;
+ tracingequations := 0 ;
+ tracingcapsules := 0 ;
+ tracingspecs := 0 ;
+ tracingchoices := 0 ;
+ tracingstats := 0 ;
+ tracingoutput := 0 ;
+ tracingmacros := 0 ;
+ tracingrestores := 0 ;
+enddef ;
+
+permanent interact, loggingall, tracingall, tracingnone ;
+
+%% dash patterns
+
+vardef dashpattern(text t) =
+ save on, off, w ;
+ let on = _on_ ;
+ let off = _off_ ;
+ w = 0 ;
+ nullpicture t
+enddef ;
+
+tertiarydef p _on_ d =
+ begingroup save pic ;
+ picture pic;
+ pic = p ;
+ addto pic doublepath (w,w) .. (w+d,w) ;
+ w := w + d ;
+ pic shifted (0,d)
+ endgroup
+enddef ;
+
+tertiarydef p _off_ d =
+ begingroup w := w + d ;
+ p shifted (0,d)
+ endgroup
+enddef ;
+
+permanent dashpattern, _on_, _off_, on, off ; % on and off are not primitives
+
+%% basic constants and mathematical macros
+
+% numeric constants
+
+newinternal eps, epsilon, infinity, _ ;
+
+eps := .00049 ; % this is a pretty small positive number
+epsilon := 1/256/256 ; % but this is the smallest
+infinity := 4095.99998 ; % and this is the largest
+_ := -1 ; % internal constant to make macros unreadable but shorter
+
+immutable eps, epsilon, infinity, _ ;
+
+% linejoin and linecap types
+
+newinternal mitered, rounded, beveled, butt, squared ;
+
+mitered := 0 ; rounded := 1 ; beveled := 2 ;
+butt := 0 ; rounded := 1 ; squared := 2 ;
+
+immutable mitered, rounded, beveled, butt, squared ;
+
+% pair constants
+
+pair right, left, up, down, origin;
+
+origin = (0,0) ;
+up = -down = (0,1) ;
+right = -left = (1,0) ;
+
+immutable right, left, up, down, origin ;
+
+% path constants
+
+path quartercircle, halfcircle, fullcircle, unitsquare ;
+
+fullcircle = makepath pencircle ;
+halfcircle = subpath (0,4) of fullcircle ;
+quartercircle = subpath (0,2) of fullcircle ;
+unitsquare = (0,0) -- (1,0) -- (1,1) -- (0,1) -- cycle ;
+
+immutable quartercircle, halfcircle, fullcircle, unitsquare ;
+
+% transform constants
+
+transform identity ;
+
+for z=origin,right,up :
+ z transformed identity = z ;
+endfor ;
+
+immutable identity ;
+
+% color constants (all in rgb color space)
+
+color black, white, red, green, blue, cyan, magenta, yellow, background;
+
+black := (0,0,0) ;
+white := (1,1,1) ;
+red := (1,0,0) ;
+green := (0,1,0) ;
+blue := (0,0,1) ;
+cyan := (0,1,1) ;
+magenta := (1,0,1) ;
+yellow := (1,1,0) ;
+
+background := white ; % obsolete
+
+% should these be tagged with a property ?
+
+let graypart = greypart ;
+let greycolor = numeric ;
+let graycolor = numeric ;
+
+% color part (will be overloaded)
+
+def colorpart primary t =
+ if colormodel t = 7:
+ (cyanpart t, magentapart t, yellowpart t, blackpart t)
+ elseif colormodel t = 5 :
+ (redpart t, greenpart t, bluepart t)
+ elseif colormodel t = 3 :
+ (greypart t)
+ elseif colormodel t = 1 :
+ false
+ elseif defaultcolormodel = 7 :
+ (0,0,0,1)
+ elseif defaultcolormodel = 5 :
+ black
+ elseif defaultcolormodel = 3 :
+ 0
+ else :
+ false
+ fi
+enddef ;
+
+permanent graypart, greycolor, graycolor ; % colorpart
+
+% picture constants
+
+picture blankpicture, evenly, withdots ;
+
+blankpicture = nullpicture ; % display blankpicture...
+evenly = dashpattern(on 3 off 3) ; % dashed evenly
+withdots = dashpattern(off 2.5 on 0 off 2.5) ; % dashed withdots
+
+immutable blankpicture;
+permanent evenly, withdots ;
+
+% string constants
+
+string ditto, EOF ;
+
+ditto = char 34 ; % ASCII double-quote mark
+EOF = char 0 ; % end-of-file for readfrom and write..to
+
+immutable ditto, EOF ;
+
+% pen constants
+
+pen pensquare, penrazor, penspec ;
+
+pensquare = makepen(unitsquare shifted -(.5,.5)) ;
+penrazor = makepen((-.5,0) -- (.5,0) -- cycle) ;
+penspec = pensquare scaled eps ;
+
+immutable pensquare, penrazor, penspec ;
+
+% nullary operators
+
+vardef whatever =
+ save ? ;
+ ?
+enddef ;
+
+permanent whatever ;
+
+% unary operators (with patched round)
+
+let abs = length ;
+
+vardef round primary u =
+ if numeric u :
+ floor(u+.5)
+ elseif pair u :
+ (floor(xpart u+.5), floor(ypart u+.5))
+ elseif path u :
+ % added by HH
+ for i=0 upto length u-1 :
+ round(point i of u) ..
+ controls round(postcontrol i of u) and round(precontrol i+1 of u) ..
+ endfor
+ if cycle u : cycle else : point infinity of u fi
+ else :
+ u
+ fi
+enddef ;
+
+vardef ceiling primary x =
+ -floor(-x)
+enddef ;
+
+vardef byte primary s =
+ if string s :
+ ASCII
+ fi s
+enddef ;
+
+vardef dir primary d =
+ right rotated d
+enddef ;
+
+vardef unitvector primary z =
+ z/abs z
+enddef ;
+
+vardef inverse primary t =
+ transform temp_transform ;
+ temp_transform transformed t = identity ;
+ temp_transform
+enddef ;
+
+vardef counterclockwise primary c =
+ if turningnumber c <= 0 :
+ reverse
+ fi c
+enddef ;
+
+vardef tensepath expr r =
+ for k=0 upto length r - 1 :
+ point k of r ---
+ endfor
+ if cycle r :
+ cycle
+ else :
+ point infinity of r
+ fi
+enddef ;
+
+vardef center primary p =
+ .5[llcorner p, urcorner p]
+enddef ;
+
+permanent abs, round, ceiling, byte, dir, unitvector, inverse, counterclockwise, tensepath, center ;
+
+% binary operators
+
+primarydef x mod y =
+ (x-y*floor(x/y))
+enddef ;
+
+primarydef x div y =
+ floor(x/y)
+enddef ;
+
+primarydef w dotprod z =
+ (xpart w * xpart z + ypart w * ypart z)
+enddef ;
+
+permanent mod, div, dotprod ;
+
+% primarydef x**y =
+% if y = 2 :
+% x*x
+% else :
+% takepower y of x
+% fi
+% enddef ;
+%
+% def takepower expr y of x =
+% if x>0 :
+% mexp(y*mlog x)
+% elseif (x=0) and (y>0) :
+% 0
+% else :
+% 1
+% if y = floor y :
+% if y >= 0 :
+% for n=1 upto y :
+% *x
+% endfor
+% else :
+% for n=-1 downto y :
+% /x
+% endfor
+% fi
+% else :
+% hide(errmessage "Undefined power: " & decimal x & "**" & decimal y)
+% fi
+% fi
+% enddef ;
+
+% for big number systems:
+
+primarydef x**y =
+ if y = 0 : 1
+ elseif x = 0 : 0
+ elseif y < 0 : 1/(x**-y)
+ elseif y = 1 : x
+ elseif y = 2 : x*x
+ elseif y = 3 : x*x*x
+ else : takepower y of x
+ fi
+enddef ;
+
+def takepower expr y of x =
+ if y=0 : % isn't x**0 = 1 even if x=0 ?
+ 1
+ elseif x=0 :
+ 0
+ else :
+ if y = floor y :
+ 1
+ if y >= 0 :
+ for n=1 upto y :
+ *x
+ endfor
+ else :
+ for n=-1 downto y :
+ /x
+ endfor
+ fi
+ elseif x > 0 :
+ mexp(y*mlog x)
+ else :
+ -mexp(y*mlog -x)
+ fi
+ fi
+enddef ;
+
+permanent **, takepower ;
+
+newinternal temp_internal_a, temp_internal_b ;
+newinternal temp_numeric_x, temp_numeric_y ;
+newinternal temp_internal_tx, temp_internal_ty, temp_internal_fx, temp_internal_fy ;
+newinternal temp_internal_n ;
+path temp_path_a, temp_path_b ;
+pair temp_pair_dz, temp_pair_z[] ;
+
+vardef direction expr t of p =
+ postcontrol t of p - precontrol t of p
+enddef ;
+
+vardef directionpoint expr z of p =
+ temp_internal_a := directiontime z of p ;
+ if temp_internal_a < 0 :
+ errmessage("The direction doesn't occur") ;
+ fi
+ point temp_internal_a of p
+enddef ;
+
+secondarydef p intersectionpoint q =
+ begingroup
+ save temp_numeric_x, temp_numeric_y ;
+ (temp_numeric_x,temp_numeric_y) = p intersectiontimes q ;
+ if temp_numeric_x < 0 :
+ errmessage("The paths don't intersect") ;
+ origin
+ else :
+ .5[point temp_numeric_x of p, point temp_numeric_y of q]
+ fi
+ endgroup
+enddef ;
+
+tertiarydef p softjoin q =
+ begingroup
+ temp_path_a := fullcircle scaled 2join_radius shifted point 0 of q ;
+ temp_internal_a := ypart(temp_path_a intersectiontimes p) ;
+ temp_internal_b := ypart(temp_path_a intersectiontimes q) ;
+ if temp_internal_a < 0 :
+ point 0 of p {direction 0 of p}
+ else :
+ subpath(0,temp_internal_a) of p
+ fi
+ ...
+ if temp_internal_b < 0 :
+ {direction infinity of q} point infinity of q
+ else :
+ subpath(temp_internal_b,infinity) of q
+ fi
+ endgroup
+enddef ;
+
+permanent direction, directionpoint, softjoin ;
+
+newinternal join_radius ;
+path cuttings ; % what got cut off
+
+tertiarydef a cutbefore b = % tries to cut as little as possible
+ begingroup
+ save t ;
+ (t, whatever) = a intersectiontimes b ;
+ if t < 0 :
+ cuttings := point 0 of a ;
+ a
+ else :
+ cuttings := subpath (0,t) of a ;
+ subpath (t,length a) of a
+ fi
+ endgroup
+enddef ;
+
+tertiarydef a cutafter b =
+ reverse (reverse a cutbefore b)
+ hide(cuttings := reverse cuttings)
+enddef ;
+
+permanent join_radius, cuttings, cutbefore, cutafter ;
+
+% special operators
+
+vardef incr suffix $ = $ := $ + 1 ; $ enddef ;
+vardef decr suffix $ = $ := $ - 1 ; $ enddef ;
+
+permanent incr, decr ;
+
+def reflectedabout(expr w,z) = % reflects about the line w..z
+ transformed
+ begingroup
+ transform temp_transform ;
+ w transformed temp_transform = w ;
+ z transformed temp_transform = z ;
+ xxpart temp_transform = -yypart temp_transform ;
+ xypart temp_transform = yxpart temp_transform ; % temp_transform is a reflection
+ temp_transform
+ endgroup
+enddef ;
+
+def rotatedaround(expr z, d) = % rotates d degrees around z
+ shifted -z rotated d shifted z
+enddef ;
+
+let rotatedabout = rotatedaround ; % for roundabout people
+
+permanent reflectedabout, rotatedaround, rotatedabout ;
+
+vardef min(expr u)(text t) = % t is a list of numerics, pairs, or strings
+ save temp_any_u ;
+ if pair u :
+ pair temp_any_u
+ elseif string u :
+ string temp_any_u
+ fi ;
+ temp_any_u = u
+ for i = t :
+ if i < temp_any_u :
+ temp_any_u := i ;
+ fi
+ endfor
+ temp_any_u
+enddef ;
+
+vardef max(expr u)(text t) = % t is a list of numerics, pairs, or strings
+ save temp_any_u ;
+ if pair u :
+ pair temp_any_u
+ elseif string u :
+ string temp_any_u
+ fi ;
+ temp_any_u = u
+ for i = t :
+ if i > temp_any_u :
+ temp_any_u := i ;
+ fi
+ endfor
+ temp_any_u
+enddef ;
+
+def flex(text t) = % t is a list of pairs
+ hide (
+ temp_internal_n := 0 ;
+ for z=t :
+ temp_pair_z[incr temp_internal_n] := z ;
+ endfor
+ temp_pair_dz := temp_pair_z[temp_internal_n]-temp_pair_z[1]
+ )
+ temp_pair_z[1] for k=2 upto temp_internal_n - 1 : ... temp_pair_z[k]{temp_pair_dz} endfor ... temp_pair_z[temp_internal_n]
+enddef ;
+
+permanent min, max, flex ;
+
+def superellipse(expr r, t, l, b, s) =
+ r { up } ... (s[xpart t,xpart r],s[ypart r,ypart t]) { t-r } ...
+ t { left } ... (s[xpart t,xpart l],s[ypart l,ypart t]) { l-t } ...
+ l { down } ... (s[xpart b,xpart l],s[ypart l,ypart b]) { b-l } ...
+ b { right } ... (s[xpart b,xpart r],s[ypart r,ypart b]) { r-b } ... cycle enddef ;
+
+vardef interpath(expr a,p,q) =
+ for t=0 upto length p-1 :
+ a[point t of p, point t of q] .. controls a[postcontrol t of p, postcontrol t of q] and a[precontrol t+1 of p, precontrol t+1 of q] ..
+ endfor
+ if cycle p :
+ cycle
+ else :
+ a[point infinity of p, point infinity of q]
+ fi
+enddef ;
+
+permanent superellipse, interpath ;
+
+newinternal tolerance ; tolerance := .01 ;
+
+vardef solve@#(expr t, f)= % @#(t)=true, @#(f)=false
+ temp_internal_tx := t;
+ temp_internal_fx := f;
+ forever :
+ temp_numeric_x := .5[temp_internal_tx,temp_internal_fx] ;
+ exitif abs(temp_internal_tx - temp_internal_fx) <= tolerance ;
+ if @#(temp_numeric_x) :
+ temp_internal_tx
+ else :
+ temp_internal_fx
+ fi := temp_numeric_x ;
+ endfor
+ temp_numeric_x % now temp_numeric_x is near where @# changes from true to false
+enddef ;
+
+vardef buildcycle(text ll) =
+ save temp_a, temp_b, temp_k, temp_i, temp_p ; path temp_p[] ;
+ temp_k = 0 ;
+ for q=ll :
+ temp_p[incr temp_k] = q ;
+ endfor
+ temp_i = temp_k ;
+ for i=1 upto temp_k :
+ (temp_a[i], length temp_p[temp_i]-temp_b[temp_i]) = temp_p[i] intersectiontimes reverse temp_p[temp_i] ;
+ if temp_a[i]<0 :
+ errmessage("Paths "& decimal i &" and "& decimal temp_i &" don't intersect") ;
+ fi
+ temp_i := i;
+ endfor
+ for i=1 upto temp_k :
+ subpath (temp_a[i],temp_b[i]) of temp_p[i] ..
+ endfor
+ cycle
+enddef ;
+
+permanent interpath, solve, buildcycle, tolerance ;
+
+%% units of measure
+
+mm := 2.83464 ;
+pt := 0.99626 ;
+dd := 1.06601 ;
+bp := 1 ;
+cm := 28.34645 ;
+pc := 11.95517 ;
+cc := 12.79213 ;
+in := 72 ;
+
+immutable mm, pt, dd, bp, cm, pc, cc, in ;
+
+% vardef magstep primary m = % obsolete
+% mexp(46.67432m)
+% enddef ;
+
+%% macros for drawing and filling
+
+def drawoptions(text t) =
+ def base_draw_options = t enddef
+enddef ;
+
+% parameters that effect drawing
+
+linejoin := rounded ;
+linecap := rounded ;
+miterlimit := 10 ;
+
+drawoptions() ;
+
+pen currentpen ;
+picture currentpicture ;
+
+def fill expr c =
+ addto currentpicture contour c base_draw_options
+enddef ;
+
+def draw expr p =
+ addto currentpicture
+ if picture p :
+ also p
+ else :
+ doublepath p withpen currentpen
+ fi
+ base_draw_options
+enddef ;
+
+def filldraw expr c =
+ addto currentpicture contour c withpen currentpen base_draw_options
+enddef ;
+
+% def drawdot expr z =
+% addto currentpicture contour makepath currentpen shifted z base_draw_options
+% enddef ;
+%
+% testcase DEK:
+%
+% for j=1 upto 9 :
+% pickup pencircle xscaled .4 yscaled .2 ;
+% drawdot (10j,0) withpen pencircle xscaled .5j yscaled .25j rotated 45 ;
+% pickup pencircle xscaled .5j yscaled .25j rotated 45 ;
+% drawdot (10j,10);
+% endfor ;
+%
+% or:
+%
+%\startMPpage
+%
+% def drawdot expr z =
+% addto currentpicture contour (makepath currentpen shifted z) base_draw_options
+% enddef;
+%
+% drawdot origin shifted (0,-3cm) withpen pencircle scaled 2cm ;
+% pickup pencircle scaled 2cm ; drawdot origin withcolor red ;
+
+def drawdot expr p =
+ if pair p :
+ addto currentpicture doublepath p withpen currentpen base_draw_options
+ else :
+ errmessage("drawdot only accepts a pair expression")
+ fi
+enddef ;
+
+permanent drawoptions, currentpen, currentpicture, filldraw, drawdot ; % redefined later: fill, draw
+
+% Kind of obsolete:
+
+def unfill expr c = fill c withcolor background enddef ;
+def undraw expr p = draw p withcolor background enddef ;
+def unfilldraw expr c = filldraw c withcolor background enddef ;
+def undrawdot expr z = drawdot z withcolor background enddef ;
+
+def plain_erase = enddef ;
+
+def erase text t =
+ def plain_erase =
+ withcolor background hide(def plain_erase = enddef ;)
+ enddef ;
+ t plain_erase
+enddef ;
+
+def cutdraw text t =
+ begingroup
+ interim linecap := butt ;
+ draw t plain_erase ;
+ endgroup
+enddef ;
+
+permanent unfill, undraw, unfilldraw, undrawdot, erase, cutdraw ;
+
+% Popular:
+
+vardef image(text t) =
+ save currentpicture ;
+ picture currentpicture ;
+ currentpicture := nullpicture ;
+ t ;
+ currentpicture
+enddef ;
+
+permanent image ;
+
+def pickup secondary q =
+ if numeric q :
+ plain_pickup_numeric
+ else :
+ plain_pickup_path
+ fi q
+enddef ;
+
+% pens
+
+newinternal pen_lft, pen_rt, pen_top, pen_bot ;
+
+newinternal temp_pen_count ;
+path temp_pen_result ;
+path temp_pen_path.l, temp_pen_path.r ;
+numeric temp_pen_l[], temp_pen_r[], temp_pen_t[], temp_pen_b[] ;
+pen temp_pen_stack[] ;
+path temp_pen_p[] ;
+
+pen currentpen ;
+
+temp_pen_count := 0 ;
+
+def plain_pickup_numeric primary q =
+ if unknown temp_pen_stack[q] :
+ errmessage "Unknown pen" ;
+ clearpen
+ else :
+ currentpen := temp_pen_stack[q] ;
+ pen_lft := temp_pen_l[q] ;
+ pen_rt := temp_pen_r[q] ;
+ pen_top := temp_pen_t[q] ;
+ pen_bot := temp_pen_b[q] ;
+ temp_pen_result := temp_pen_p[q]
+ fi ;
+enddef ;
+
+def plain_pickup_path primary q =
+ currentpen := q ;
+ pen_lft := xpart penoffset down of currentpen ;
+ pen_rt := xpart penoffset up of currentpen ;
+ pen_top := ypart penoffset left of currentpen ;
+ pen_bot := ypart penoffset right of currentpen ;
+ path temp_pen_result ;
+enddef ;
+
+vardef savepen =
+ temp_pen_stack[incr temp_pen_count] = currentpen ;
+ temp_pen_l[temp_pen_count] = pen_lft ;
+ temp_pen_r[temp_pen_count] = pen_rt ;
+ temp_pen_t[temp_pen_count] = pen_top ;
+ temp_pen_b[temp_pen_count] = pen_bot ;
+ temp_pen_p[temp_pen_count] = temp_pen_result ;
+ temp_pen_count
+enddef ;
+
+def clearpen =
+ currentpen := nullpen;
+ pen_lft := pen_rt := pen_top := pen_bot := 0 ;
+ path temp_pen_result ;
+enddef ;
+
+vardef lft primary x = x + if pair x: (pen_lft,0) else: pen_lft fi enddef ;
+vardef rt primary x = x + if pair x: (pen_rt, 0) else: pen_rt fi enddef ;
+vardef top primary y = y + if pair y: (0,pen_top) else: pen_top fi enddef ;
+vardef bot primary y = y + if pair y: (0,pen_bot) else: pen_bot fi enddef ;
+
+vardef penpos@#(expr b,d) =
+ (x@#r-x@#l,y@#r-y@#l) = (b,0) rotated d ;
+ x@# = .5(x@#l+x@#r) ;
+ y@# = .5(y@#l+y@#r) ; % ; added HH
+enddef ;
+
+def penstroke text t =
+ forsuffixes e = l, r :
+ temp_pen_path.e := t ;
+ endfor
+ fill temp_pen_path.l -- reverse temp_pen_path.r -- cycle
+enddef ;
+
+permanent
+ pen_lft, pen_rt, pen_top, pen_bot,
+ lft, rt, top, bot,
+ pickup, penpos, clearpen, penstroke, savepen ;
+
+%% High level drawing commands
+
+newinternal ahlength, ahangle ;
+
+ahlength := 4 ; % default arrowhead length 4bp
+ahangle := 45 ; % default head angle 45 degrees
+
+path temp_arrow_path ;
+
+vardef arrowhead expr p =
+ save q, e ; path q ; pair e ;
+ e = point length p of p ;
+ q = gobble(p shifted -e cutafter makepath(pencircle scaled 2ahlength)) cuttings ;
+ (q rotated .5ahangle & reverse q rotated -.5ahangle -- cycle) shifted e
+enddef ;
+
+def drawarrow expr p = temp_arrow_path := p ; plain_arrow_finish enddef ;
+def drawdblarrow expr p = temp_arrow_path := p ; plain_arrow_find enddef ;
+
+def plain_arrow_finish text t =
+ draw temp_arrow_path t ;
+ filldraw arrowhead temp_arrow_path t
+enddef ;
+
+def plain_arrow_find text t = % this had fill in 0.63 (potential incompatibility)
+ draw temp_arrow_path t ;
+ filldraw arrowhead temp_arrow_path withpen currentpen t ;
+ filldraw arrowhead reverse temp_arrow_path withpen currentpen t ; % ; added HH
+enddef ;
+
+permanent ahlength, ahangle, arrowhead, drawarrow, drawdblarrow ;
+
+%% macros for labels
+
+newinternal bboxmargin ;
+
+bboxmargin := 2bp ; % this can bite you, just don't use it in \METAFUN
+
+vardef bbox primary p =
+ llcorner p - ( bboxmargin, bboxmargin) --
+ lrcorner p + ( bboxmargin,-bboxmargin) --
+ urcorner p + ( bboxmargin, bboxmargin) --
+ ulcorner p + (-bboxmargin, bboxmargin) -- cycle
+enddef ;
+
+permanent bboxmargin, bbox ;
+
+string defaultfont ; newinternal defaultscale, labeloffset, dotlabeldiam ;
+
+defaultfont := "cmr10" ;
+defaultscale := 1 ;
+labeloffset := 3bp ;
+dotlabeldiam := 3bp ;
+
+permanent defaultfont, defaultscale, labeloffset, dotlabeldiam ;
+
+vardef thelabel@#(expr s,z) = % Position s near z
+ save p ; picture p ;
+ if picture s :
+ p = s
+ else :
+ p = s infont defaultfont scaled defaultscale
+ fi ;
+ p shifted (z + labeloffset*laboff@# - ( labxf@#*lrcorner p + labyf@#*ulcorner p + (1-labxf@#-labyf@#)*llcorner p) )
+enddef ;
+
+def label =
+ draw thelabel
+enddef ;
+
+vardef dotlabel@#(expr s,z) text t =
+ label@#(s,z) t ;
+ interim linecap := rounded ;
+ draw z withpen pencircle scaled dotlabeldiam t ;
+enddef ;
+
+% def makelabel =
+% dotlabel
+% enddef ;
+
+permanent label, dotlabel ;
+
+% this will be overloaded
+
+pair laboff, laboff.lft, laboff.rt, laboff.top, laboff.bot ;
+pair laboff.ulft, laboff.llft, laboff.urt, laboff.lrt ;
+
+laboff = (0,0) ; labxf = .5 ; labyf = .5 ;
+laboff.lft = (-1,0) ; labxf.lft = 1 ; labyf.lft = .5 ;
+laboff.rt = (1,0) ; labxf.rt = 0 ; labyf.rt = .5 ;
+laboff.bot = (0,-1) ; labxf.bot = .5 ; labyf.bot = 1 ;
+laboff.top = (0,1) ; labxf.top = .5 ; labyf.top = 0 ;
+laboff.ulft = (-.7,.7) ; labxf.ulft = 1 ; labyf.ulft = 0 ;
+laboff.urt = (.7,.7) ; labxf.urt = 0 ; labyf.urt = 0 ;
+laboff.llft = -(.7,.7) ; labxf.llft = 1 ; labyf.llft = 1 ;
+laboff.lrt = (.7,-.7) ; labxf.lrt = 0 ; labyf.lrt = 1 ;
+
+vardef labels@#(text t) =
+ forsuffixes $=t :
+ label@#(str$,z$) ;
+ endfor
+enddef ;
+
+% till lhere
+
+vardef dotlabels@#(text t) =
+ forsuffixes $=t:
+ dotlabel@#(str$,z$) ;
+ endfor
+enddef ;
+
+vardef penlabels@#(text t) =
+ forsuffixes $$=l,,r :
+ forsuffixes $=t :
+ dotlabel@#(str$.$$,z$.$$) ;
+ endfor
+ endfor
+enddef ;
+
+permanent dotlabels, penlabels ;
+
+% range 4 thru 10
+
+def plain_numtok suffix x =
+ x
+enddef ;
+
+def range expr x =
+ plain_numtok[x]
+enddef ;
+
+tertiarydef m thru n =
+ m for x=m+1 step 1 until n :
+ , plain_numtok[x]
+ endfor
+enddef ;
+
+permanent range, thru ;
+
+%% Overall administration
+
+% Todo: make an add to this helper thet temporarily disables warning
+
+string extra_beginfig, extra_endfig ;
+
+extra_beginfig := "" ;
+extra_endfig := "" ;
+
+def beginfig(expr c) =
+ begingroup
+ charcode := c ;
+ clearxy ;
+ clearit ;
+ clearpen ;
+ pickup defaultpen ;
+ drawoptions() ;
+ scantokens extra_beginfig ;
+enddef ;
+
+def endfig =
+ ; % added by HH
+ scantokens extra_endfig ;
+ shipit ;
+ endgroup
+enddef ;
+
+permanent
+ % extra_beginfig, extra_endfig,
+ beginfig, endfig ;
+
+%% last-minute items
+
+vardef z@# =
+ (x@#,y@#)
+enddef ;
+
+def clearxy =
+ save x, y
+enddef ;
+
+def clearit =
+ currentpicture := nullpicture
+enddef ;
+
+clearit ;
+
+permanent z, clearit ; % redefined: clearxy
+
+def shipit =
+ shipout currentpicture
+enddef ;
+
+let bye = end ;
+outer end, bye ;
+
+permanent shipit, bye ;
+
+% set default line width
+
+newinternal defaultpen ;
+
+pickup pencircle scaled .5bp ;
+
+defaultpen := savepen ;
+
+permanent defaultpen ;
diff --git a/metapost/context/base/mpxl/mp-blob.mpxl b/metapost/context/base/mpxl/mp-blob.mpxl
new file mode 100644
index 000000000..9dffc3e80
--- /dev/null
+++ b/metapost/context/base/mpxl/mp-blob.mpxl
@@ -0,0 +1,118 @@
+%D \module
+%D [ file=mp-blob.mpiv,
+%D version=2018.04.08,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=Blobs,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+%D This is a follow up on good old \type {meta-imp-txt}.
+
+if known context_blob : endinput ; fi ;
+
+boolean context_blob ; context_blob := true ; immutable context_blob ;
+
+numeric mfun_blob_n ; mfun_blob_n := 0 ;
+picture mfun_blob_c ;
+color mfun_blob_b ;
+
+def mfun_reset_tex_blobs =
+ mfun_blob_n := 0 ;
+ mfun_blob_c := nullpicture ;
+enddef ;
+
+extra_endfig := extra_endfig & "mfun_reset_tex_blobs ; " ;
+
+vardef mfun_inject_blob(expr n) =
+ mfun_blob_c := nullpicture ;
+ mfun_blob_b := lua.mp.mf_blob_dimensions(mfun_blob_n,n) ;
+ addto mfun_blob_c doublepath unitsquare
+ xscaled redpart mfun_blob_b
+ yscaled (greenpart mfun_blob_b + bluepart mfun_blob_b)
+ shifted (0,- bluepart mfun_blob_b)
+ withprescript "mf_object=texblob"
+ withprescript "tb_blob=" & decimal lua.mp.mf_blob_index(mfun_blob_n,n) ;
+ mfun_blob_c
+enddef ;
+
+% An example of usage:
+
+newinternal followtextalternative ; followtextalternative := 1 ;
+newinternal tracingfollowtext ; tracingfollowtext := 0 ;
+newinternal autoscaleupfollowtext ; autoscaleupfollowtext := 2 ;
+newinternal autoscaledownfollowtext ; autoscaledownfollowtext := 0 ;
+
+permanent tracingfollowtext ;
+
+vardef followtext(expr pth, txt) =
+ image (
+ mfun_blob_n := mfun_blob_n + 1 ;
+ lua.mp.mf_inject_blob(mfun_blob_n,txt);
+ save pat, al, at, pl, pc, wid, pos, ap, ad, pic, len, n, b, sc ;
+ path pat, b ; pat := pth ;
+ numeric al, at, pl, pc, wid, pos, len[], n, sc ;
+ pair ap, ad ;
+ picture pic[] ;
+ len[0] := 0 ;
+ n := lua.mp.mf_blob_size(mfun_blob_n) ;
+ sc := 0 ;
+ for i=1 upto n :
+ pic[i] := mfun_inject_blob(i) ;
+ pic[i] := pic[i] shifted - llcorner pic[i] ;
+ len[i] := len[i-1] + lua.mp.mf_blob_width(mfun_blob_n,i) ;
+ endfor ;
+ al := arclength pth ;
+ if al = 0 :
+ al := len[n] ;
+ pat := origin -- (al,0) ;
+ fi ;
+ if ((al < len[n]) and (autoscaleupfollowtext > 0)) or
+ ((al > len[n]) and (autoscaledownfollowtext > 0)) :
+ sc := len[n] /al ;
+ pat := pat scaled sc ;
+ al := arclength pat ;
+ fi ;
+ if followtextalternative = 1 :
+ pl := (al-len[n])/(if n>1 : (n-1) else : 1 fi) ;
+ pc := 0 ;
+ else : % centered / MP
+ pl := 0 ;
+ pc := arclength pat/2 - len[n]/2 ;
+ fi ;
+ if tracingfollowtext = 1 :
+ draw pat withpen pencircle scaled 1pt withcolor blue ;
+ fi ;
+ for i=1 upto n :
+ wid := lua.mp.mf_blob_width(mfun_blob_n,i) ;
+ pos := len[i]-wid/2 + (i-1)*pl + pc ;
+ at := arctime pos of pat ;
+ ap := point at of pat ;
+ ad := direction at of pat ;
+ pic[i] := pic[i]
+ shifted (-wid/2,0)
+ if ad <> origin : rotated(angle(ad)) fi
+ shifted ap ;
+ draw pic[i] ;
+ if tracingfollowtext = 1 :
+ draw boundingbox pic[i] withpen pencircle scaled .25pt withcolor red ;
+ draw ap withpen pencircle scaled .50pt withcolor green ;
+ fi ;
+ endfor ;
+ if ((autoscaleupfollowtext = 2) or (autoscaledownfollowtext = 2)) and (sc <> 0) and (sc <> 1):
+ currentpicture := currentpicture scaled (1/sc) ;
+ fi ;
+ b := boundingbox currentpicture ;
+ if tracingfollowtext = 1 :
+ draw b withpen pencircle scaled .25pt withcolor blue ;
+ fi ;
+ draw fullcircle scaled 100bp
+ withprescript "mf_object=followtext"
+ withprescript "ft_category=" & decimal mfun_blob_n ;
+ setbounds currentpicture to b ;
+ )
+enddef ;
diff --git a/metapost/context/base/mpxl/mp-butt.mpxl b/metapost/context/base/mpxl/mp-butt.mpxl
new file mode 100644
index 000000000..7900c6037
--- /dev/null
+++ b/metapost/context/base/mpxl/mp-butt.mpxl
@@ -0,0 +1,77 @@
+%D \module
+%D [ file=mp-butt.mpiv,
+%D version=2000.05.31,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=buttons,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+if known context_butt : endinput ; fi ;
+
+boolean context_butt ; context_butt := true ; immutable context_butt ;
+
+def predefinedbutton (expr button_type, button_size, button_linecolor, button_fillcolor) =
+
+ begingroup ;
+
+ save button_linewidth, p, d, l ;
+
+ numeric button_linewidth ; button_linewidth := button_size/10 ;
+
+ drawoptions (withpen pencircle scaled button_linewidth withcolor button_linecolor) ;
+
+ path p ; p := unitsquare scaled button_size ;
+ numeric d ; d := button_size ;
+ numeric l ; l := button_linewidth ;
+
+ fill p withcolor button_fillcolor ;
+ draw p ;
+
+ if button_type = 101 :
+ draw (d-2l,2l)--(2l,.5d)--(d-2l,d-2l)--cycle ;
+ elseif button_type = 102 :
+ draw (2l,2l)--(d-2l,.5d)--(2l,d-2l)--cycle ;
+ elseif button_type = 103 :
+ for i=2l step 2l until d-2l :
+ draw (2l,i)--(2l ,i) ;
+ draw (4l,i)--(d-2l,i) ;
+ endfor ;
+ elseif button_type = 104 :
+ for i=2l step 2l until d-2l :
+ draw (2l ,i)--(d/2-l,i) ;
+ draw (d/2+l,i)--(d-2l ,i) ;
+ endfor ;
+ elseif button_type = 105 :
+ fill fullcircle scaled (.2d) shifted (.5d,.7d) ;
+ fill fullcircle xscaled (.6d) yscaled d shifted (.5d,0) ;
+ clip currentpicture to p ;
+ draw p ;
+ elseif button_type = 106 :
+ draw (2l,2l)--(d-2l,d-2l) ;
+ draw (d-2l,2l)--(2l,d-2l) ;
+ elseif button_type = 107 :
+ p := (3l,d-2l)--(d-3l,d-2l)--(.5d,4l)--cycle ;
+ fill p ; draw p ;
+ draw (.5d,2l) ;
+ elseif button_type = 108 :
+ draw (.5d,2l)--(d-2l,d-2l)--(2l,d-2l)--cycle ;
+ elseif button_type = 109 :
+ draw (.5d,d-2l)--(d-2l,2l)--(2l,2l)--cycle ;
+ elseif button_type = 110 :
+ button_linewidth := button_linewidth/2 ;
+ draw p enlarged (-2l,-l) ;
+ for i=2l step l until d-2l :
+ draw (3l,i)--(d-3l,i) ;
+ endfor ;
+ fi ;
+
+ endgroup ;
+
+enddef ;
+
+let some_button = predefinedbutton
diff --git a/metapost/context/base/mpxl/mp-cont.mpxl b/metapost/context/base/mpxl/mp-cont.mpxl
index bc318d4b9..c65d27412 100644
--- a/metapost/context/base/mpxl/mp-cont.mpxl
+++ b/metapost/context/base/mpxl/mp-cont.mpxl
@@ -15,7 +15,7 @@
if known context_cont : endinput ; fi ;
-boolean context_cont ; context_cont := true ;
+boolean context_cont ; context_cont := true ; immutable context_cont ;
string CurrentLayout ; CurrentLayout := "default" ;
@@ -25,99 +25,133 @@ def SwapPageState =
mfun_swapped := true ; % eventually this will go !
enddef ;
+permanent CurrentLayout, SwapPageState ;
+
extra_beginfig := extra_beginfig & "mfun_swapped := false ;" ;
-newinternal mfid_PaperHeight ; mfid_PaperHeight := scriptindex "PaperHeight" ; vardef PaperHeight = runscript mfid_PaperHeight enddef ;
-newinternal mfid_PaperWidth ; mfid_PaperWidth := scriptindex "PaperWidth" ; vardef PaperWidth = runscript mfid_PaperWidth enddef ;
-newinternal mfid_PrintPaperHeight ; mfid_PrintPaperHeight := scriptindex "PrintPaperHeight" ; vardef PrintPaperHeight = runscript mfid_PrintPaperHeight enddef ;
-newinternal mfid_PrintPaperWidth ; mfid_PrintPaperWidth := scriptindex "PrintPaperWidth" ; vardef PrintPaperWidth = runscript mfid_PrintPaperWidth enddef ;
-newinternal mfid_TopSpace ; mfid_TopSpace := scriptindex "TopSpace" ; vardef TopSpace = runscript mfid_TopSpace enddef ;
-newinternal mfid_BottomSpace ; mfid_BottomSpace := scriptindex "BottomSpace" ; vardef BottomSpace = runscript mfid_BottomSpace enddef ;
-newinternal mfid_BackSpace ; mfid_BackSpace := scriptindex "BackSpace" ; vardef BackSpace = runscript mfid_BackSpace enddef ;
-newinternal mfid_CutSpace ; mfid_CutSpace := scriptindex "CutSpace" ; vardef CutSpace = runscript mfid_CutSpace enddef ;
-newinternal mfid_MakeupHeight ; mfid_MakeupHeight := scriptindex "MakeupHeight" ; vardef MakeupHeight = runscript mfid_MakeupHeight enddef ;
-newinternal mfid_MakeupWidth ; mfid_MakeupWidth := scriptindex "MakeupWidth" ; vardef MakeupWidth = runscript mfid_MakeupWidth enddef ;
-newinternal mfid_TopHeight ; mfid_TopHeight := scriptindex "TopHeight" ; vardef TopHeight = runscript mfid_TopHeight enddef ;
-newinternal mfid_TopDistance ; mfid_TopDistance := scriptindex "TopDistance" ; vardef TopDistance = runscript mfid_TopDistance enddef ;
-newinternal mfid_HeaderHeight ; mfid_HeaderHeight := scriptindex "HeaderHeight" ; vardef HeaderHeight = runscript mfid_HeaderHeight enddef ;
-newinternal mfid_HeaderDistance ; mfid_HeaderDistance := scriptindex "HeaderDistance" ; vardef HeaderDistance = runscript mfid_HeaderDistance enddef ;
-newinternal mfid_TextHeight ; mfid_TextHeight := scriptindex "TextHeight" ; vardef TextHeight = runscript mfid_TextHeight enddef ;
-newinternal mfid_FooterDistance ; mfid_FooterDistance := scriptindex "FooterDistance" ; vardef FooterDistance = runscript mfid_FooterDistance enddef ;
-newinternal mfid_FooterHeight ; mfid_FooterHeight := scriptindex "FooterHeight" ; vardef FooterHeight = runscript mfid_FooterHeight enddef ;
-newinternal mfid_BottomDistance ; mfid_BottomDistance := scriptindex "BottomDistance" ; vardef BottomDistance = runscript mfid_BottomDistance enddef ;
-newinternal mfid_BottomHeight ; mfid_BottomHeight := scriptindex "BottomHeight" ; vardef BottomHeight = runscript mfid_BottomHeight enddef ;
-newinternal mfid_LeftEdgeWidth ; mfid_LeftEdgeWidth := scriptindex "LeftEdgeWidth" ; vardef LeftEdgeWidth = runscript mfid_LeftEdgeWidth enddef ;
-newinternal mfid_LeftEdgeDistance ; mfid_LeftEdgeDistance := scriptindex "LeftEdgeDistance" ; vardef LeftEdgeDistance = runscript mfid_LeftEdgeDistance enddef ;
-newinternal mfid_LeftMarginWidth ; mfid_LeftMarginWidth := scriptindex "LeftMarginWidth" ; vardef LeftMarginWidth = runscript mfid_LeftMarginWidth enddef ;
-newinternal mfid_LeftMarginDistance ; mfid_LeftMarginDistance := scriptindex "LeftMarginDistance" ; vardef LeftMarginDistance = runscript mfid_LeftMarginDistance enddef ;
-newinternal mfid_TextWidth ; mfid_TextWidth := scriptindex "TextWidth" ; vardef TextWidth = runscript mfid_TextWidth enddef ;
-newinternal mfid_RightMarginDistance ; mfid_RightMarginDistance := scriptindex "RightMarginDistance" ; vardef RightMarginDistance = runscript mfid_RightMarginDistance enddef ;
-newinternal mfid_RightMarginWidth ; mfid_RightMarginWidth := scriptindex "RightMarginWidth" ; vardef RightMarginWidth = runscript mfid_RightMarginWidth enddef ;
-newinternal mfid_RightEdgeDistance ; mfid_RightEdgeDistance := scriptindex "RightEdgeDistance" ; vardef RightEdgeDistance = runscript mfid_RightEdgeDistance enddef ;
-newinternal mfid_RightEdgeWidth ; mfid_RightEdgeWidth := scriptindex "RightEdgeWidth" ; vardef RightEdgeWidth = runscript mfid_RightEdgeWidth enddef ;
-newinternal mfid_InnerMarginDistance ; mfid_InnerMarginDistance := scriptindex "InnerMarginDistance" ; vardef InnerMarginDistance = runscript mfid_InnerMarginDistance enddef ;
-newinternal mfid_InnerMarginWidth ; mfid_InnerMarginWidth := scriptindex "InnerMarginWidth" ; vardef InnerMarginWidth = runscript mfid_InnerMarginWidth enddef ;
-newinternal mfid_OuterMarginDistance ; mfid_OuterMarginDistance := scriptindex "OuterMarginDistance" ; vardef OuterMarginDistance = runscript mfid_OuterMarginDistance enddef ;
-newinternal mfid_OuterMarginWidth ; mfid_OuterMarginWidth := scriptindex "OuterMarginWidth" ; vardef OuterMarginWidth = runscript mfid_OuterMarginWidth enddef ;
-newinternal mfid_InnerEdgeDistance ; mfid_InnerEdgeDistance := scriptindex "InnerEdgeDistance" ; vardef InnerEdgeDistance = runscript mfid_InnerEdgeDistance enddef ;
-newinternal mfid_InnerEdgeWidth ; mfid_InnerEdgeWidth := scriptindex "InnerEdgeWidth" ; vardef InnerEdgeWidth = runscript mfid_InnerEdgeWidth enddef ;
-newinternal mfid_OuterEdgeDistance ; mfid_OuterEdgeDistance := scriptindex "OuterEdgeDistance" ; vardef OuterEdgeDistance = runscript mfid_OuterEdgeDistance enddef ;
-newinternal mfid_OuterEdgeWidth ; mfid_OuterEdgeWidth := scriptindex "OuterEdgeWidth" ; vardef OuterEdgeWidth = runscript mfid_OuterEdgeWidth enddef ;
-newinternal mfid_PageOffset ; mfid_PageOffset := scriptindex "PageOffset" ; vardef PageOffset = runscript mfid_PageOffset enddef ;
-newinternal mfid_PageDepth ; mfid_PageDepth := scriptindex "PageDepth" ; vardef PageDepth = runscript mfid_PageDepth enddef ;
-newinternal mfid_LayoutColumns ; mfid_LayoutColumns := scriptindex "LayoutColumns" ; vardef LayoutColumns = runscript mfid_LayoutColumns enddef ;
-newinternal mfid_LayoutColumnDistance ; mfid_LayoutColumnDistance := scriptindex "LayoutColumnDistance" ; vardef LayoutColumnDistance = runscript mfid_LayoutColumnDistance enddef ;
-newinternal mfid_LayoutColumnWidth ; mfid_LayoutColumnWidth := scriptindex "LayoutColumnWidth" ; vardef LayoutColumnWidth = runscript mfid_LayoutColumnWidth enddef ;
-
-newinternal mfid_OnRightPage ; mfid_OnRightPage := scriptindex "OnRightPage" ; vardef OnRightPage = runscript mfid_OnRightPage enddef ;
-newinternal mfid_OnOddPage ; mfid_OnOddPage := scriptindex "OnOddPage" ; vardef OnOddPage = runscript mfid_OnOddPage enddef ;
-newinternal mfid_InPageBody ; mfid_InPageBody := scriptindex "InPageBody" ; vardef InPageBody = runscript mfid_InPageBody enddef ;
-
-newinternal mfid_RealPageNumber ; mfid_RealPageNumber := scriptindex "RealPageNumber" ; vardef RealPageNumber = runscript mfid_RealPageNumber enddef ;
-newinternal mfid_LastPageNumber ; mfid_LastPageNumber := scriptindex "LastPageNumber" ; vardef LastPageNumber = runscript mfid_LastPageNumber enddef ;
-
-newinternal mfid_PageNumber ; mfid_PageNumber := scriptindex "PageNumber" ; vardef PageNumber = runscript mfid_PageNumber enddef ;
-newinternal mfid_NOfPages ; mfid_NOfPages := scriptindex "NOfPages" ; vardef NOfPages = runscript mfid_NOfPages enddef ;
-
-newinternal mfid_SubPageNumber ; mfid_SubPageNumber := scriptindex "SubPageNumber" ; vardef SubPageNumber = runscript mfid_SubPageNumber enddef ;
-newinternal mfid_NOfSubPages ; mfid_NOfSubPages := scriptindex "NOfSubPages" ; vardef NOfSubPages = runscript mfid_NOfSubPages enddef ;
-
-newinternal mfid_CurrentColumn ; mfid_CurrentColumn := scriptindex "CurrentColumn" ; vardef CurrentColumn = runscript mfid_CurrentColumn enddef ;
-newinternal mfid_NOfColumns ; mfid_NOfColumns := scriptindex "NOfColumns" ; vardef NOfColumns = runscript mfid_NOfColumns enddef ;
-
-newinternal mfid_BaseLineSkip ; mfid_BaseLineSkip := scriptindex "BaseLineSkip" ; vardef BaseLineSkip = runscript mfid_BaseLineSkip enddef ;
-newinternal mfid_LineHeight ; mfid_LineHeight := scriptindex "LineHeight" ; vardef LineHeight = runscript mfid_LineHeight enddef ;
-newinternal mfid_BodyFontSize ; mfid_BodyFontSize := scriptindex "BodyFontSize" ; vardef BodyFontSize = runscript mfid_BodyFontSize enddef ;
-
-newinternal mfid_TopSkip ; mfid_TopSkip := scriptindex "TopSkip" ; vardef TopSkip = runscript mfid_TopSkip enddef ;
-newinternal mfid_StrutHeight ; mfid_StrutHeight := scriptindex "StrutHeight" ; vardef StrutHeight = runscript mfid_StrutHeight enddef ;
-newinternal mfid_StrutDepth ; mfid_StrutDepth := scriptindex "StrutDepth" ; vardef StrutDepth = runscript mfid_StrutDepth enddef ;
-
-newinternal mfid_CurrentWidth ; mfid_CurrentWidth := scriptindex "CurrentWidth" ; vardef CurrentWidth = runscript mfid_CurrentWidth enddef ;
-newinternal mfid_CurrentHeight ; mfid_CurrentHeight := scriptindex "CurrentHeight" ; vardef CurrentHeight = runscript mfid_CurrentHeight enddef ;
-
-newinternal mfid_HSize ; mfid_HSize := scriptindex "HSize" ; vardef HSize = runscript mfid_HSize enddef ;
-newinternal mfid_VSize ; mfid_VSize := scriptindex "VSize" ; vardef VSize = runscript mfid_VSize enddef ;
-
-newinternal mfid_EmWidth ; mfid_EmWidth := scriptindex "EmWidth" ; vardef EmWidth = runscript mfid_EmWidth enddef ;
-newinternal mfid_ExHeight ; mfid_ExHeight := scriptindex "ExHeight" ; vardef ExHeight = runscript mfid_ExHeight enddef ;
-
-newinternal mfid_PageFraction ; mfid_PageFraction := scriptindex "PageFraction" ; vardef PageFraction = runscript mfid_PageFraction enddef ;
-
-newinternal mfid_SpineWidth ; mfid_SpineWidth := scriptindex "SpineWidth" ; vardef SpineWidth = runscript mfid_SpineWidth enddef ;
-newinternal mfid_PaperBleed ; mfid_PaperBleed := scriptindex "PaperBleed" ; vardef PaperBleed = runscript mfid_PaperBleed enddef ;
-
-% mfid_CurrentLayout ; mfid_CurrentLayout := scriptindex "CurrentLayout" ; vardef CurrentLayout = runscript mfid_CurrentLayout enddef ;
-newinternal mfid_OverlayWidth ; mfid_OverlayWidth := scriptindex "OverlayWidth" ; vardef OverlayWidth = runscript mfid_OverlayWidth enddef ;
-newinternal mfid_OverlayHeight ; mfid_OverlayHeight := scriptindex "OverlayHeight" ; vardef OverlayHeight = runscript mfid_OverlayHeight enddef ;
-newinternal mfid_OverlayDepth ; mfid_OverlayDepth := scriptindex "OverlayDepth" ; vardef OverlayDepth = runscript mfid_OverlayDepth enddef ;
-newinternal mfid_OverlayLineWidth ; mfid_OverlayLineWidth := scriptindex "OverlayLineWidth" ; vardef OverlayLineWidth = runscript mfid_OverlayLineWidth enddef ;
-newinternal mfid_OverlayOffset ; mfid_OverlayOffset := scriptindex "OverlayOffset" ; vardef OverlayOffset = runscript mfid_OverlayOffset enddef ;
-newinternal mfid_OverlayRegion ; mfid_OverlayRegion := scriptindex "OverlayRegion" ; vardef OverlayRegion = runscript mfid_OverlayRegion enddef ;
-% mfid_OverlayLineColor ; mfid_OverlayLineColor := scriptindex "OverlayLineColor ; vardef OverlayLineColor = runscript mfid_OverlayLineColor enddef ;
-% mfid_OverlayColor ; mfid_OverlayColor := scriptindex "OverlayColor ; vardef OverlayColor = runscript mfid_OverlayColor enddef ;
-
-newinternal mfid_defaultcolormodel ; mfid_defaultcolormodel := scriptindex "defaultcolormodel" ; vardef defaultcolormodel = runscript mfid_defaultcolormodel enddef ;
+newscriptindex mfid_PaperHeight ; mfid_PaperHeight := scriptindex "PaperHeight" ; vardef PaperHeight = runscript mfid_PaperHeight enddef ;
+newscriptindex mfid_PaperWidth ; mfid_PaperWidth := scriptindex "PaperWidth" ; vardef PaperWidth = runscript mfid_PaperWidth enddef ;
+newscriptindex mfid_PrintPaperHeight ; mfid_PrintPaperHeight := scriptindex "PrintPaperHeight" ; vardef PrintPaperHeight = runscript mfid_PrintPaperHeight enddef ;
+newscriptindex mfid_PrintPaperWidth ; mfid_PrintPaperWidth := scriptindex "PrintPaperWidth" ; vardef PrintPaperWidth = runscript mfid_PrintPaperWidth enddef ;
+newscriptindex mfid_TopSpace ; mfid_TopSpace := scriptindex "TopSpace" ; vardef TopSpace = runscript mfid_TopSpace enddef ;
+newscriptindex mfid_BottomSpace ; mfid_BottomSpace := scriptindex "BottomSpace" ; vardef BottomSpace = runscript mfid_BottomSpace enddef ;
+newscriptindex mfid_BackSpace ; mfid_BackSpace := scriptindex "BackSpace" ; vardef BackSpace = runscript mfid_BackSpace enddef ;
+newscriptindex mfid_CutSpace ; mfid_CutSpace := scriptindex "CutSpace" ; vardef CutSpace = runscript mfid_CutSpace enddef ;
+newscriptindex mfid_MakeupHeight ; mfid_MakeupHeight := scriptindex "MakeupHeight" ; vardef MakeupHeight = runscript mfid_MakeupHeight enddef ;
+newscriptindex mfid_MakeupWidth ; mfid_MakeupWidth := scriptindex "MakeupWidth" ; vardef MakeupWidth = runscript mfid_MakeupWidth enddef ;
+newscriptindex mfid_TopHeight ; mfid_TopHeight := scriptindex "TopHeight" ; vardef TopHeight = runscript mfid_TopHeight enddef ;
+newscriptindex mfid_TopDistance ; mfid_TopDistance := scriptindex "TopDistance" ; vardef TopDistance = runscript mfid_TopDistance enddef ;
+newscriptindex mfid_HeaderHeight ; mfid_HeaderHeight := scriptindex "HeaderHeight" ; vardef HeaderHeight = runscript mfid_HeaderHeight enddef ;
+newscriptindex mfid_HeaderDistance ; mfid_HeaderDistance := scriptindex "HeaderDistance" ; vardef HeaderDistance = runscript mfid_HeaderDistance enddef ;
+newscriptindex mfid_TextHeight ; mfid_TextHeight := scriptindex "TextHeight" ; vardef TextHeight = runscript mfid_TextHeight enddef ;
+newscriptindex mfid_FooterDistance ; mfid_FooterDistance := scriptindex "FooterDistance" ; vardef FooterDistance = runscript mfid_FooterDistance enddef ;
+newscriptindex mfid_FooterHeight ; mfid_FooterHeight := scriptindex "FooterHeight" ; vardef FooterHeight = runscript mfid_FooterHeight enddef ;
+newscriptindex mfid_BottomDistance ; mfid_BottomDistance := scriptindex "BottomDistance" ; vardef BottomDistance = runscript mfid_BottomDistance enddef ;
+newscriptindex mfid_BottomHeight ; mfid_BottomHeight := scriptindex "BottomHeight" ; vardef BottomHeight = runscript mfid_BottomHeight enddef ;
+newscriptindex mfid_LeftEdgeWidth ; mfid_LeftEdgeWidth := scriptindex "LeftEdgeWidth" ; vardef LeftEdgeWidth = runscript mfid_LeftEdgeWidth enddef ;
+newscriptindex mfid_LeftEdgeDistance ; mfid_LeftEdgeDistance := scriptindex "LeftEdgeDistance" ; vardef LeftEdgeDistance = runscript mfid_LeftEdgeDistance enddef ;
+newscriptindex mfid_LeftMarginWidth ; mfid_LeftMarginWidth := scriptindex "LeftMarginWidth" ; vardef LeftMarginWidth = runscript mfid_LeftMarginWidth enddef ;
+newscriptindex mfid_LeftMarginDistance ; mfid_LeftMarginDistance := scriptindex "LeftMarginDistance" ; vardef LeftMarginDistance = runscript mfid_LeftMarginDistance enddef ;
+newscriptindex mfid_TextWidth ; mfid_TextWidth := scriptindex "TextWidth" ; vardef TextWidth = runscript mfid_TextWidth enddef ;
+newscriptindex mfid_RightMarginDistance ; mfid_RightMarginDistance := scriptindex "RightMarginDistance" ; vardef RightMarginDistance = runscript mfid_RightMarginDistance enddef ;
+newscriptindex mfid_RightMarginWidth ; mfid_RightMarginWidth := scriptindex "RightMarginWidth" ; vardef RightMarginWidth = runscript mfid_RightMarginWidth enddef ;
+newscriptindex mfid_RightEdgeDistance ; mfid_RightEdgeDistance := scriptindex "RightEdgeDistance" ; vardef RightEdgeDistance = runscript mfid_RightEdgeDistance enddef ;
+newscriptindex mfid_RightEdgeWidth ; mfid_RightEdgeWidth := scriptindex "RightEdgeWidth" ; vardef RightEdgeWidth = runscript mfid_RightEdgeWidth enddef ;
+newscriptindex mfid_InnerMarginDistance ; mfid_InnerMarginDistance := scriptindex "InnerMarginDistance" ; vardef InnerMarginDistance = runscript mfid_InnerMarginDistance enddef ;
+newscriptindex mfid_InnerMarginWidth ; mfid_InnerMarginWidth := scriptindex "InnerMarginWidth" ; vardef InnerMarginWidth = runscript mfid_InnerMarginWidth enddef ;
+newscriptindex mfid_OuterMarginDistance ; mfid_OuterMarginDistance := scriptindex "OuterMarginDistance" ; vardef OuterMarginDistance = runscript mfid_OuterMarginDistance enddef ;
+newscriptindex mfid_OuterMarginWidth ; mfid_OuterMarginWidth := scriptindex "OuterMarginWidth" ; vardef OuterMarginWidth = runscript mfid_OuterMarginWidth enddef ;
+newscriptindex mfid_InnerEdgeDistance ; mfid_InnerEdgeDistance := scriptindex "InnerEdgeDistance" ; vardef InnerEdgeDistance = runscript mfid_InnerEdgeDistance enddef ;
+newscriptindex mfid_InnerEdgeWidth ; mfid_InnerEdgeWidth := scriptindex "InnerEdgeWidth" ; vardef InnerEdgeWidth = runscript mfid_InnerEdgeWidth enddef ;
+newscriptindex mfid_OuterEdgeDistance ; mfid_OuterEdgeDistance := scriptindex "OuterEdgeDistance" ; vardef OuterEdgeDistance = runscript mfid_OuterEdgeDistance enddef ;
+newscriptindex mfid_OuterEdgeWidth ; mfid_OuterEdgeWidth := scriptindex "OuterEdgeWidth" ; vardef OuterEdgeWidth = runscript mfid_OuterEdgeWidth enddef ;
+newscriptindex mfid_PageOffset ; mfid_PageOffset := scriptindex "PageOffset" ; vardef PageOffset = runscript mfid_PageOffset enddef ;
+newscriptindex mfid_PageDepth ; mfid_PageDepth := scriptindex "PageDepth" ; vardef PageDepth = runscript mfid_PageDepth enddef ;
+newscriptindex mfid_LayoutColumns ; mfid_LayoutColumns := scriptindex "LayoutColumns" ; vardef LayoutColumns = runscript mfid_LayoutColumns enddef ;
+newscriptindex mfid_LayoutColumnDistance ; mfid_LayoutColumnDistance := scriptindex "LayoutColumnDistance" ; vardef LayoutColumnDistance = runscript mfid_LayoutColumnDistance enddef ;
+newscriptindex mfid_LayoutColumnWidth ; mfid_LayoutColumnWidth := scriptindex "LayoutColumnWidth" ; vardef LayoutColumnWidth = runscript mfid_LayoutColumnWidth enddef ;
+
+immutable % permanent
+ PaperHeight, PaperWidth, PrintPaperHeight, PrintPaperWidth, TopSpace,
+ BottomSpace, BackSpace, CutSpace, MakeupHeight, MakeupWidth, TopHeight,
+ TopDistance, HeaderHeight, HeaderDistance, TextHeight, FooterDistance,
+ FooterHeight, BottomDistance, BottomHeight, LeftEdgeWidth, LeftEdgeDistance,
+ LeftMarginWidth, LeftMarginDistance, TextWidth, RightMarginDistance,
+ RightMarginWidth, RightEdgeDistance, RightEdgeWidth, InnerMarginDistance,
+ InnerMarginWidth, OuterMarginDistance, OuterMarginWidth, InnerEdgeDistance,
+ InnerEdgeWidth, OuterEdgeDistance, OuterEdgeWidth, PageOffset, PageDepth,
+ LayoutColumns, LayoutColumnDistance, LayoutColumnWidth ;
+
+newscriptindex mfid_OnRightPage ; mfid_OnRightPage := scriptindex "OnRightPage" ; vardef OnRightPage = runscript mfid_OnRightPage enddef ;
+newscriptindex mfid_OnOddPage ; mfid_OnOddPage := scriptindex "OnOddPage" ; vardef OnOddPage = runscript mfid_OnOddPage enddef ;
+newscriptindex mfid_InPageBody ; mfid_InPageBody := scriptindex "InPageBody" ; vardef InPageBody = runscript mfid_InPageBody enddef ;
+newscriptindex mfid_LayoutHasChanged ; mfid_LayoutHasChanged := scriptindex "LayoutHasChanged" ; vardef LayoutHasChanged = runscript mfid_LayoutHasChanged enddef ;
+
+immutable % permanent
+ OnRightPage, OnOddPage, InPageBody, LayoutHasChanged ;
+
+newscriptindex mfid_RealPageNumber ; mfid_RealPageNumber := scriptindex "RealPageNumber" ; vardef RealPageNumber= runscript mfid_RealPageNumber enddef ;
+newscriptindex mfid_LastPageNumber ; mfid_LastPageNumber := scriptindex "LastPageNumber" ; vardef LastPageNumber= runscript mfid_LastPageNumber enddef ;
+
+newscriptindex mfid_PageNumber ; mfid_PageNumber := scriptindex "PageNumber" ; vardef PageNumber = runscript mfid_PageNumber enddef ;
+newscriptindex mfid_NOfPages ; mfid_NOfPages := scriptindex "NOfPages" ; vardef NOfPages = runscript mfid_NOfPages enddef ;
+
+newscriptindex mfid_SubPageNumber ; mfid_SubPageNumber := scriptindex "SubPageNumber" ; vardef SubPageNumber = runscript mfid_SubPageNumber enddef ;
+newscriptindex mfid_NOfSubPages ; mfid_NOfSubPages := scriptindex "NOfSubPages" ; vardef NOfSubPages = runscript mfid_NOfSubPages enddef ;
+
+newscriptindex mfid_CurrentColumn ; mfid_CurrentColumn := scriptindex "CurrentColumn" ; vardef CurrentColumn = runscript mfid_CurrentColumn enddef ;
+newscriptindex mfid_NOfColumns ; mfid_NOfColumns := scriptindex "NOfColumns" ; vardef NOfColumns = runscript mfid_NOfColumns enddef ;
+
+immutable % permanent
+ RealPageNumber, LastPageNumber, PageNumber,
+ NOfPages, SubPageNumber, NOfSubPages, CurrentColumn, NOfColumns ;
+
+newscriptindex mfid_BaseLineSkip ; mfid_BaseLineSkip := scriptindex "BaseLineSkip" ; vardef BaseLineSkip = runscript mfid_BaseLineSkip enddef ;
+newscriptindex mfid_LineHeight ; mfid_LineHeight := scriptindex "LineHeight" ; vardef LineHeight = runscript mfid_LineHeight enddef ;
+newscriptindex mfid_BodyFontSize ; mfid_BodyFontSize := scriptindex "BodyFontSize" ; vardef BodyFontSize = runscript mfid_BodyFontSize enddef ;
+
+newscriptindex mfid_TopSkip ; mfid_TopSkip := scriptindex "TopSkip" ; vardef TopSkip = runscript mfid_TopSkip enddef ;
+newscriptindex mfid_StrutHeight ; mfid_StrutHeight := scriptindex "StrutHeight" ; vardef StrutHeight = runscript mfid_StrutHeight enddef ;
+newscriptindex mfid_StrutDepth ; mfid_StrutDepth := scriptindex "StrutDepth" ; vardef StrutDepth = runscript mfid_StrutDepth enddef ;
+
+newscriptindex mfid_CurrentWidth ; mfid_CurrentWidth := scriptindex "CurrentWidth" ; vardef CurrentWidth = runscript mfid_CurrentWidth enddef ;
+newscriptindex mfid_CurrentHeight ; mfid_CurrentHeight := scriptindex "CurrentHeight" ; vardef CurrentHeight = runscript mfid_CurrentHeight enddef ;
+
+newscriptindex mfid_HSize ; mfid_HSize := scriptindex "HSize" ; vardef HSize = runscript mfid_HSize enddef ;
+newscriptindex mfid_VSize ; mfid_VSize := scriptindex "VSize" ; vardef VSize = runscript mfid_VSize enddef ;
+
+newscriptindex mfid_EmWidth ; mfid_EmWidth := scriptindex "EmWidth" ; vardef EmWidth = runscript mfid_EmWidth enddef ;
+newscriptindex mfid_ExHeight ; mfid_ExHeight := scriptindex "ExHeight" ; vardef ExHeight = runscript mfid_ExHeight enddef ;
+
+immutable % permanent
+ BaseLineSkip, LineHeight, BodyFontSize, TopSkip, StrutHeight, StrutDepth,
+ CurrentWidth, CurrentHeight, HSize, VSize, EmWidth, ExHeight ;
+
+newscriptindex mfid_PageFraction ; mfid_PageFraction := scriptindex "PageFraction" ; vardef PageFraction = runscript mfid_PageFraction enddef ;
+newscriptindex mfid_SpineWidth ; mfid_SpineWidth := scriptindex "SpineWidth" ; vardef SpineWidth = runscript mfid_SpineWidth enddef ;
+newscriptindex mfid_PaperBleed ; mfid_PaperBleed := scriptindex "PaperBleed" ; vardef PaperBleed = runscript mfid_PaperBleed enddef ;
+
+immutable % permanent
+ PageFraction, SpineWidth, PaperBleed ;
+
+% mfid_CurrentLayout ; mfid_CurrentLayout := scriptindex "CurrentLayout" ; vardef CurrentLayout = runscript mfid_CurrentLayout enddef ;
+% mfid_OverlayLineColor ; mfid_OverlayLineColor := scriptindex "OverlayLineColor ; vardef OverlayLineColor = runscript mfid_OverlayLineColor enddef ;
+% mfid_OverlayColor ; mfid_OverlayColor := scriptindex "OverlayColor ; vardef OverlayColor = runscript mfid_OverlayColor enddef ;
+newscriptindex mfid_OverlayWidth ; mfid_OverlayWidth := scriptindex "OverlayWidth" ; vardef OverlayWidth = runscript mfid_OverlayWidth enddef ;
+newscriptindex mfid_OverlayHeight ; mfid_OverlayHeight := scriptindex "OverlayHeight" ; vardef OverlayHeight = runscript mfid_OverlayHeight enddef ;
+newscriptindex mfid_OverlayDepth ; mfid_OverlayDepth := scriptindex "OverlayDepth" ; vardef OverlayDepth = runscript mfid_OverlayDepth enddef ;
+newscriptindex mfid_OverlayLineWidth ; mfid_OverlayLineWidth := scriptindex "OverlayLineWidth" ; vardef OverlayLineWidth = runscript mfid_OverlayLineWidth enddef ;
+newscriptindex mfid_OverlayOffset ; mfid_OverlayOffset := scriptindex "OverlayOffset" ; vardef OverlayOffset = runscript mfid_OverlayOffset enddef ;
+newscriptindex mfid_OverlayRegion ; mfid_OverlayRegion := scriptindex "OverlayRegion" ; vardef OverlayRegion = runscript mfid_OverlayRegion enddef ;
+
+immutable % permanent
+ % CurrentLayout, OverlayLineColor, OverlayColor,
+ OverlayWidth, OverlayHeight, OverlayDepth, OverlayLineWidth, OverlayOffset, OverlayRegion ;
+
+newscriptindex mfid_defaultcolormodel ; mfid_defaultcolormodel := scriptindex "defaultcolormodel" ; vardef defaultcolormodel = runscript mfid_defaultcolormodel enddef ;
+
+immutable % permanent
+ defaultcolormodel ;
vardef LeftMarginWidth = if mfun_swapped and not OnRightPage : runscript mfid_RightMarginWidth else : runscript mfid_LeftMarginWidth fi enddef ;
vardef RightMarginWidth = if mfun_swapped and not OnRightPage : runscript mfid_LeftMarginWidth else : runscript mfid_RightMarginWidth fi enddef ;
@@ -153,6 +187,12 @@ vardef OuterMargin = if not OnRightPage : LeftMargin else : RightMargin fi endd
vardef InnerMargin = if not OnRightPage : RightMargin else : LeftMargin fi enddef ;
vardef OuterEdge = if not OnRightPage : LeftEdge else : RightEdge fi enddef ;
-vardef InnerEdge = if not OnRightPage : Rightedge else : LeftEdge fi enddef ;
-
-
+vardef InnerEdge = if not OnRightPage : RightEdge else : LeftEdge fi enddef ;
+
+immutable % permanent
+ LeftMarginWidth, RightMarginWidth, LeftMarginDistance, RightMarginDistance,
+ LeftEdgeWidth, RightEdgeWidth, LeftEdgeDistance, RightEdgeDistance, BackSpace,
+ CutSpace, OuterMarginWidth, InnerMarginWidth, OuterMarginDistance,
+ InnerMarginDistance, OuterEdgeWidth, InnerEdgeWidth, OuterEdgeDistance,
+ InnerEdgeDistance, OuterSpaceWidth, InnerSpaceWidth, OuterMargin, InnerMargin,
+ OuterEdge, InnerEdge ;
diff --git a/metapost/context/base/mpxl/mp-figs.mpxl b/metapost/context/base/mpxl/mp-figs.mpxl
new file mode 100644
index 000000000..b077056cb
--- /dev/null
+++ b/metapost/context/base/mpxl/mp-figs.mpxl
@@ -0,0 +1,47 @@
+%D \module
+%D [ file=mp-figs.mpiv,
+%D version=2003.01.15,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=figures,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+if known context_figs : endinput ; fi ;
+
+boolean context_figs ; context_figs := true ; immutable context_figs ;
+
+% todo: check defined
+
+def registerfigure(expr name,width,height) =
+ begingroup ;
+ save s ; string s ; s := cleanstring(name) ;
+ scantokens( s & "_width := " & decimal(width )) ;
+ scantokens( s & "_height := " & decimal(height)) ;
+ endgroup ;
+enddef ;
+
+vardef figuresize(expr name) =
+ save s, p ; string s ; pair p ;
+ s := cleanstring(name) ;
+ scantokens( "p := " & "(" & s & "_width" & "," & s & "_height" & ")" ) ;
+ p
+enddef ;
+
+vardef figurewidth(expr name) =
+ xpart figuresize(name)
+enddef ;
+
+vardef figureheight(expr name) =
+ ypart figuresize(name)
+enddef ;
+
+let figuredimensions = figuresize ; % for old times sake
+
+def naturalfigure(expr name) =
+ externalfigure name xyscaled(figuresize(name))
+enddef ;
diff --git a/metapost/context/base/mpxl/mp-form.mpxl b/metapost/context/base/mpxl/mp-form.mpxl
new file mode 100644
index 000000000..fcd0c1137
--- /dev/null
+++ b/metapost/context/base/mpxl/mp-form.mpxl
@@ -0,0 +1,28 @@
+%D \module
+%D [ file=mp-form.mpiv,
+%D version=2011.10.14,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=form support,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+% The graph package will be replaced by our own variant using
+% MetaPost 2 features and textext.
+
+if known context_form : endinput ; fi ;
+
+boolean context_form ; context_form := true ; immutable context_form ;
+
+% The following function accept a number or string that can be
+% converted to a number by \LUA. The first argument is a format
+% where @ can be used instead of %. The number is typeset in math
+% mode and @3e is converted into @.3e.
+
+vardef mfun_format_number(expr fmt, i) =
+ "\ctxlua{metapost.formatnumber('" & fmt & "'," & if string i : i else : decimal i fi & ")}"
+enddef ;
diff --git a/metapost/context/base/mpxl/mp-func.mpxl b/metapost/context/base/mpxl/mp-func.mpxl
new file mode 100644
index 000000000..859e6ead3
--- /dev/null
+++ b/metapost/context/base/mpxl/mp-func.mpxl
@@ -0,0 +1,87 @@
+%D \module
+%D [ file=mp-func.mpiv,
+%D version=2001.12.29,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=function hacks,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+%D Under construction.
+
+if known context_func : endinput ; fi ;
+
+boolean context_func ; context_func := true ; immutable context_func ;
+
+string mfun_pathconnectors[] ;
+
+mfun_pathconnectors[0] := "," ;
+mfun_pathconnectors[1] := "--" ;
+mfun_pathconnectors[2] := ".." ;
+mfun_pathconnectors[3] := "..." ;
+mfun_pathconnectors[4] := "---" ;
+
+def pathconnectors = mfun_pathconnectors enddef ;
+
+vardef mfun_function (expr f) (expr u, t, b, e, s) =
+ save x ; numeric x ;
+ save c ; string c ; c := if string f : f else : mfun_pathconnectors[f] fi ;
+ for xx := b step s until e :
+ hide (x := xx ;)
+ if xx > b :
+ scantokens(c)
+ fi
+ (scantokens(u),scantokens(t))
+ endfor
+enddef ;
+
+def function = mfun_function enddef ; % let doesn't work here
+def constructedfunction = mfun_function enddef ;
+def straightfunction = mfun_function (1) enddef ;
+def curvedfunction = mfun_function (2) enddef ;
+
+% def punkedfunction = mfun_function (1) enddef ; % same as straightfunction
+% def tightfunction = mfun_function (3) enddef ; % same as curvedfunction
+
+vardef mfun_constructedpath (expr f) (text t) =
+ save ok ; boolean ok ; ok := false ;
+ save c ; string c ; c := if string f : f else : mfun_pathconnectors[f] fi ;
+ for i=t :
+ if ok :
+ scantokens(c)
+ else :
+ ok := true ;
+ fi
+ i
+ endfor
+enddef ;
+
+def constructedpath = mfun_constructedpath enddef ; % let doesn't work here
+def straightpath = mfun_constructedpath (1) enddef ;
+def curvedpath = mfun_constructedpath (2) enddef ;
+
+% def punkedpath = mfun_constructedpath (1) enddef ; % same as straightpath
+% def tightpath = mfun_constructedpath (3) enddef ; % same as curvedpath
+
+vardef mfun_constructedpairs (expr f) (text p) =
+ save i ; i := -1 ;
+ save c ; string c ; c := if string f : f else : mfun_pathconnectors[f] fi ;
+ forever :
+ exitif unknown p[incr(i)] ;
+ if i>0 :
+ scantokens(c)
+ fi
+ p[i]
+ endfor
+enddef ;
+
+def constructedpairs = mfun_constructedpairs enddef ; % let doesn't work here
+def straightpairs = mfun_constructedpairs (1) enddef ;
+def curvedpairs = mfun_constructedpairs (2) enddef ;
+
+% def punkedpairs = mfun_constructedpairs (1) enddef ; % same as straightpairs
+% def tightpairs = mfun_constructedpairs (3) enddef ; % same as curvedpairs
diff --git a/metapost/context/base/mpxl/mp-grid.mpxl b/metapost/context/base/mpxl/mp-grid.mpxl
new file mode 100644
index 000000000..466d82555
--- /dev/null
+++ b/metapost/context/base/mpxl/mp-grid.mpxl
@@ -0,0 +1,142 @@
+%D \module
+%D [ file=mp-grid.mpiv,
+%D version=2000.07.10,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=grid support,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+%D Under construction.
+
+if known context_grid : endinput ; fi ;
+
+boolean context_grid ; context_grid := true ; immutable context_grid ;
+
+string fmt_separator ; fmt_separator := "@" ;
+numeric fmt_precision ; fmt_precision := 3 ;
+boolean fmt_initialize ; fmt_initialize := false ;
+boolean fmt_zerocheck ; fmt_zerocheck := true ;
+
+if unknown fmt_loaded : input "mp-form.mpxl" ; fi ;
+
+boolean fmt_pictures ; fmt_pictures := true ;
+
+def do_format = if fmt_pictures : format else : formatstr fi enddef ;
+def do_mformat = if fmt_pictures : Mformat else : Mformatstr fi enddef ;
+
+numeric grid_eps ; grid_eps = eps ;
+
+def hlingrid (expr asked_min, asked_max, asked_step, asked_length, asked_width) text t =
+ image (
+ for i=asked_min step asked_step until asked_max+grid_eps :
+ draw (origin--(asked_width,0)) shifted (0,i*(asked_length/asked_max)) t ;
+ endfor ;
+ ) ;
+enddef ;
+
+def vlingrid (expr asked_min, asked_max, asked_step, asked_length, asked_height) text t =
+ image (
+ for i=asked_min step asked_step until asked_max+grid_eps :
+ draw (origin--(0,asked_height)) shifted (i*(asked_length/asked_max),0) t ;
+ endfor ;
+ ) ;
+enddef ;
+
+def hloggrid (expr asked_min, asked_max, asked_step, asked_length, asked_width) text t =
+ image (
+ for i=max(asked_min,1) step asked_step until min(asked_max,10)+grid_eps :
+ draw (origin--(asked_width,0)) shifted (0,asked_length*log(i)) t ;
+ endfor ;
+ ) ;
+enddef ;
+
+def vloggrid (expr asked_min, asked_max, asked_step, asked_length, asked_height) text t =
+ image (
+ for i=max(asked_min,1) step asked_step until min(asked_max,10)+grid_eps :
+ draw (origin--(0,asked_height)) shifted (asked_length*log(i),0) t ;
+ endfor ;
+ ) ;
+enddef ;
+
+vardef hlintext@#(expr asked_min, asked_max, asked_step, asked_length, asked_format) text t =
+ image (
+ for i=asked_min step asked_step until asked_max+grid_eps :
+ draw textext@#(mfun_format_number(asked_format,i)) shifted (0,i*(asked_length/asked_max)) t ;
+ endfor ;
+ )
+enddef ;
+
+vardef vlintext@#(expr asked_min, asked_max, asked_step, asked_length, asked_format) text t =
+ image (
+ for i=asked_min step asked_step until asked_max+grid_eps :
+ draw textext@#(mfun_format_number(asked_format,i)) shifted (i*(asked_length/asked_max),0) t ;
+ endfor ;
+ )
+enddef ;
+
+vardef hlogtext@#(expr asked_min, asked_max, asked_step, asked_length, asked_format) text t =
+ image (
+ for i=max(asked_min,1) step asked_step until min(asked_max,10)+grid_eps :
+ draw textext@#(mfun_format_number(asked_format,i)) shifted (0,asked_length*log(i)) t ;
+ endfor ;
+ )
+enddef ;
+
+vardef vlogtext@#(expr asked_min, asked_max, asked_step, asked_length, asked_format) text t =
+ image (
+ for i=max(asked_min,1) step asked_step until min(asked_max,10)+grid_eps :
+ draw textext@#(mfun_format_number(asked_format,i)) shifted (asked_length*log(i),0) t ;
+ endfor ;
+ )
+enddef ;
+
+vardef hlinlabel@#(expr asked_min, asked_max, asked_step, asked_length) text t =
+ image (
+ for i=asked_min step asked_step until asked_max+grid_eps :
+ draw thelabel@#(decimal i,(0,i*(asked_length/asked_max))) t ;
+ endfor ;
+ )
+enddef ;
+
+vardef vlinlabel@#(expr asked_min, asked_max, asked_step, asked_length) text t =
+ image (
+ for i=asked_min step asked_step until asked_max+grid_eps :
+ draw thelabel@#(decimal i,(i*(asked_length/asked_max),0)) t ;
+ endfor ;
+ )
+enddef ;
+
+vardef linlog(expr xy) = ( xpart xy, log(ypart xy)) enddef ;
+vardef loglin(expr xy) = (log(xpart xy), ypart xy) enddef ;
+vardef loglog(expr xy) = (log(xpart xy), log(ypart xy)) enddef ;
+vardef linlin(expr xy) = ( (xpart xy), (ypart xy)) enddef ;
+
+vardef loglinpath primary p = processpath (p) (loglin) enddef ;
+vardef linlogpath primary p = processpath (p) (linlog) enddef ;
+vardef loglogpath primary p = processpath (p) (loglog) enddef ;
+vardef linlinpath primary p = processpath (p) (linlin) enddef ;
+
+vardef processpath (expr p) (text pp) =
+ if path p :
+ for i=0 upto length(p)-1 :
+ pp(point i of p) .. controls
+ pp(postcontrol i of p) and
+ pp(precontrol (i+1) of p) ..
+ endfor
+ if cycle p :
+ cycle
+ else :
+ pp(point length(p) of p)
+ fi
+ elseif pair p :
+ pp(p)
+ else :
+ p
+ fi
+enddef ;
+
diff --git a/metapost/context/base/mpxl/mp-grph.mpxl b/metapost/context/base/mpxl/mp-grph.mpxl
new file mode 100644
index 000000000..bfe8304fd
--- /dev/null
+++ b/metapost/context/base/mpxl/mp-grph.mpxl
@@ -0,0 +1,207 @@
+%D \module
+%D [ file=mp-grph.mpiv,
+%D version=2000.12.14,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=graphic text support,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+%D Under construction.
+
+if known context_grph : endinput ; fi ;
+
+boolean context_grph ; context_grph := true ; immutable context_grph ;
+
+numeric mfun_fig_nesting ; mfun_fig_nesting := 0 ;
+
+def beginfig (expr c) =
+ mfun_fig_nesting := mfun_fig_nesting + 1 ;
+ if mfun_fig_nesting = 1 :
+ begingroup
+ charcode := c ;
+ resetfig ;
+ scantokens extra_beginfig ;
+ fi ;
+enddef ;
+
+def endfig =
+ ; % safeguard
+ if mfun_fig_nesting = 1 :
+ scantokens extra_endfig ;
+ shipit ;
+ endgroup ;
+ fi ;
+ mfun_fig_nesting := mfun_fig_nesting - 1 ;
+enddef;
+
+def resetfig =
+ clearxy ;
+ clearit ;
+ clearpen ;
+ pickup defaultpen ;
+ interim linecap := linecap ;
+ interim linejoin := linejoin ;
+ interim miterlimit := miterlimit ;
+ % not really needed:
+ save temp_b ; color temp_b ; temp_b := background ;
+ save background ; color background ; background := temp_b ;
+ %
+ drawoptions () ;
+enddef ;
+
+permanent beginfig, endfig, resetfig ;
+
+def protectgraphicmacros =
+ save showtext ;
+ save beginfig ; let beginfig = begingraphictextfig ;
+ save endfig ; let endfig = endgraphictextfig ;
+ save end ; let end = relax ;
+ resetfig ; % resets currentpicture
+enddef ;
+
+numeric currentgraphictext ; currentgraphictext := 0 ;
+
+def begingraphictextfig (expr n) =
+ foundpicture := n ;
+ scratchpicture := nullpicture ;
+enddef ;
+
+def endgraphictextfig =
+ if foundpicture = currentgraphictext :
+ expandafter endinput
+ else :
+ scratchpicture := nullpicture ;
+ fi ;
+enddef ;
+
+def loadfigure primary filename =
+ mfun_load_figure(filename)
+enddef ;
+
+def mfun_load_figure (expr filename) text figureattributes =
+ begingroup ;
+ save figurenumber, figurepicture, number, fixedplace ;
+ numeric figurenumber ; figurenumber := 0 ;
+ boolean figureshift ; figureshift := true ;
+ picture figurepicture ; figurepicture := currentpicture ;
+ def number primary n = hide(figurenumber := n) enddef ;
+ def fixedplace = hide(figureshift := false) enddef ;
+ protectgraphicmacros ;
+ % defaults
+ interim linecap := rounded ;
+ interim linejoin := rounded ;
+ interim miterlimit := 10 ;
+ %
+ currentpicture := nullpicture ;
+ draw fullcircle figureattributes ; % expand number
+ currentpicture := nullpicture ;
+ def beginfig (expr n) =
+ currentpicture := nullpicture ;
+ if (figurenumber=n) or (figurenumber=0) :
+ let endfig = endinput ;
+ fi ;
+ enddef ;
+ let endfig = relax ;
+ readfile(filename) ;
+ if figureshift :
+ currentpicture := currentpicture shifted -llcorner currentpicture ;
+ fi ;
+ addto figurepicture also currentpicture figureattributes ;
+ currentpicture := figurepicture ;
+ endgroup ;
+enddef ;
+
+% We only use the new method now.
+
+boolean mfun_gt_color_fill ;
+boolean mfun_gt_color_draw ;
+boolean mfun_gt_shade_fill ;
+boolean mfun_gt_reverse_fill ;
+boolean mfun_gt_outline_fill ;
+picture mfun_gt_picture ;
+
+def mfun_gt_default = % somewhat compatible
+ scaled 11.5
+ withpen pencircle scaled .1
+enddef ;
+
+def graphictext primary t = % use outlinetext instead
+ begingroup ;
+ mfun_graphic_text_indeed(t)
+enddef ;
+
+def mfun_graphic_text_indeed(expr t) text rest =
+ interim linecap := butt ; % normally rounded
+ interim linejoin := mitered ; % normally rounded
+ % interim miterlimit := 10 ; % todo
+ %
+ let normalwithshade = withshade ;
+ %
+ save reversefill, outlinefill, withshade, withfillcolor, withdrawcolor ;
+ %
+ def mfun_gt_fill = enddef ;
+ def mfun_gt_draw = enddef ;
+ def mfun_gt_shade = enddef ;
+ %
+ mfun_gt_color_fill := false ;
+ mfun_gt_color_draw := false ;
+ mfun_gt_shade_fill := false ;
+ mfun_gt_reverse_fill := false ;
+ %
+ def reversefill = hide(mfun_gt_reverse_fill := true) enddef ;
+ def outlinefill = enddef ;
+ def withshade primary c = hide(mfun_gt_shade_fill := true; def mfun_gt_shade = normalwithshade c enddef ;) enddef ;
+ def withfillcolor primary c = hide(mfun_gt_color_fill := true; def mfun_gt_fill = withcolor c enddef ;) enddef ;
+ def withdrawcolor primary c = hide(mfun_gt_color_draw := true; def mfun_gt_draw = withcolor c enddef ;) enddef ;
+ %
+ mfun_gt_picture := nullpicture ;
+ addto mfun_gt_picture doublepath origin rest ; % preroll
+ mfun_gt_picture := nullpicture ;
+ %
+ def reversefill = enddef ;
+ def outlinefill = enddef ;
+ def withshade primary c = enddef ;
+ def withfillcolor primary c = enddef ;
+ def withdrawcolor primary c = enddef ;
+ %
+ if mfun_gt_shade_fill :
+ draw outlinetext.f(t)(mfun_gt_shade) rest;
+ elseif mfun_gt_color_fill and mfun_gt_color_draw :
+ if mfun_gt_reverse_fill :
+ draw outlinetext.r(t)(mfun_gt_default mfun_gt_fill)(mfun_gt_default mfun_gt_draw) rest;
+ else :
+ draw outlinetext.b(t)(mfun_gt_default mfun_gt_draw)(mfun_gt_default mfun_gt_fill) rest;
+ fi ;
+ elseif mfun_gt_color_fill :
+ draw outlinetext.f(t)(mfun_gt_default mfun_gt_fill) rest;
+ elseif mfun_gt_color_draw :
+ draw outlinetext.d(t)(mfun_gt_default mfun_gt_draw) rest ;
+ else :
+ draw outlinetext.d(t)(mfun_gt_default) rest ;
+ fi ;
+ %
+ endgroup ;
+enddef ;
+
+% example
+%
+% beginfig (1) ;
+% graphictext
+% "\vbox{\hsize10cm \input tufte }"
+% scaled 8
+% withdrawcolor blue
+% withfillcolor red
+% withpen pencircle scaled 2pt ;
+% endfig ;
+%
+% beginfig(1) ;
+% loadfigure "gracht.mp" rotated 20 ;
+% loadfigure "koe.mp" number 1 scaled 2 ;
+% endfig ;
+%
+% end
diff --git a/metapost/context/base/mpxl/mp-lmtx.mpxl b/metapost/context/base/mpxl/mp-lmtx.mpxl
index 1f70d0ac1..4b2ed7940 100644
--- a/metapost/context/base/mpxl/mp-lmtx.mpxl
+++ b/metapost/context/base/mpxl/mp-lmtx.mpxl
@@ -16,7 +16,7 @@
if known context_lmtx : endinput ; fi ;
-boolean context_lmtx ; context_lmtx := true ;
+boolean context_lmtx ; context_lmtx := true ; immutable context_lmtx ;
presetparameters "text" [
offset = 0,
@@ -354,12 +354,12 @@ def lmt_followtext = applyparameters "followtext" "lmt_do_followtext" enddef ;
vardef lmt_do_followtext =
image (
pushparameters "followtext" ;
- save s_u ; string s_u ; s_u := getparameter "autoscaleup" ;
- save s_d ; string s_d ; s_d := getparameter "autoscaledown" ;
+ save scale_up ; string scale_up ; scale_up := getparameter "autoscaleup" ;
+ save scale_down ; string scale_down ; scale_down := getparameter "autoscaledown" ;
save followtextalternative ; followtextalternative := if getparameter "spread" : 1 else : 0 fi ;
- save tracingfollowtext ; tracingfollowtext := if getparameter "trace" : 1 else : 0 fi ;
- save autoscaleupfollowtext ; autoscaleupfollowtext := if s_u = "yes" : 1 elseif s_u = "max" : 2 else : 0 fi ;
- save autoscaledownfollowtext ; autoscaledownfollowtext := if s_d = "yes" : 1 elseif s_d = "max" : 2 else : 0 fi ;
+ save tracingfollowtext ; tracingfollowtext := if getparameter "trace" : 1 else : 0 fi ;
+ save autoscaleupfollowtext ; autoscaleupfollowtext := if scale_up = "yes" : 1 elseif scale_up = "max" : 2 else : 0 fi ;
+ save autoscaledownfollowtext ; autoscaledownfollowtext := if scale_down = "yes" : 1 elseif scale_down = "max" : 2 else : 0 fi ;
draw followtext (
if (getparameter "reverse") : reverse fi (getparameter "path"),
getparameter "text"
@@ -992,6 +992,8 @@ vardef OverlayMesh(expr p, s) =
lmt_mesh [ paths = { meshed(p,OverlayBox,s) } ]
enddef ;
+permanent meshed, OverlayMesh ;
+
% charts
presetparameters "chart" [
@@ -1391,33 +1393,34 @@ vardef lmt_do_shade =
color_b := getparameter "colors" 2 ;
fi
if hasparameter "direction" :
- save a, b, bb ; path bb ;
+ save a, b, bb, temp_x, temp_y ; path bb ;
+ temp_x := temp_y := 0 ;
bb := boundingbox(mfun_shade_path) ;
a := b := -1 ;
if string getparameter "direction" :
s := getparameter "direction" ;
if s = "up" :
- p_a := xpart shadedup ;
- p_b := ypart shadedup ;
+ temp_x := xpart shadedup ;
+ temp_y := ypart shadedup ;
elseif s = "down" :
- p_a := xpart shadeddown ;
- p_b := ypart shadeddown ;
+ temp_x := xpart shadeddown ;
+ temp_y := ypart shadeddown ;
elseif s = "left" :
- p_a := xpart shadedleft ;
- p_b := ypart shadedleft ;
+ temp_x := xpart shadedleft ;
+ temp_y := ypart shadedleft ;
elseif s = "right" :
- p_a := xpart shadedright ;
- p_b := ypart shadedright ;
+ temp_x := xpart shadedright ;
+ temp_y := ypart shadedright ;
fi
else :
- p_a := getparameter "direction" 1 ;
- p_a := getparameter "direction" 2 ;
+ temp_x := getparameter "direction" 1 ;
+ temp_y := getparameter "direction" 2 ;
fi
- if p_a >= 0 :
- center_a := point p_a of bb ;
+ if temp_x >= 0 :
+ center_a := point temp_x of bb ;
fi
- if p_b >= 0 :
- center_b := point p_b of bb ;
+ if temp_y >= 0 :
+ center_b := point temp_y of bb ;
fi
fi ;
if hasparameter "center" :
@@ -2082,6 +2085,8 @@ vardef svggray(expr s) =
s
enddef ;
+permanent svgforcecmyk, svgcolor, svgcmyk, svggray ;
+
presetparameters "svg" [
filename = "",
fontname = "",
@@ -2212,12 +2217,15 @@ presetparameters "mpsglyph" [
def lmt_registerglyphs = applyparameters "mpsglyphs" "lmt_do_registerglyphs" enddef ;
def lmt_registerglyph = applyparameters "mpsglyph" "lmt_do_registerglyph" enddef ;
-vardef lmt_do_registerglyphs = lua.mp.lmt_register_glyphs() ; enddef ;
-vardef lmt_do_registerglyph = lua.mp.lmt_register_glyph () ; enddef ;
+newscriptindex mfid_registerglyphs ; mfid_registerglyphs := scriptindex "registerglyphs" ; def lmt_do_registerglyphs = runscript mfid_registerglyphs enddef ;
+newscriptindex mfid_registerglyph ; mfid_registerglyph := scriptindex "registerglyph " ; def lmt_do_registerglyph = runscript mfid_registerglyph enddef ;
+
+% vardef lmt_do_registerglyphs = lua.mp.lmt_register_glyphs() ; enddef ;
+% vardef lmt_do_registerglyph = lua.mp.lmt_register_glyph () ; enddef ;
% Again an experiment (todo: the faster method):
-def lmt_remaptext = runscript("mp.lmt_do_remaptext()") enddef ;
+newscriptindex mfid_remaptext ; mfid_remaptext := scriptindex "remaptext" ; def lmt_remaptext = runscript mfid_remaptext enddef ;
triplet mfun_tt_s ;
@@ -2225,9 +2233,9 @@ vardef rawmaptext(expr s) =
mfun_tt_n := mfun_tt_n + 1 ;
mfun_tt_c := nullpicture ;
mfun_tt_o := nullpicture ;
- addto mfun_tt_o doublepath origin _op_ ; % save drawoptions
- mfun_tt_r := lua.mp.mf_map_text(mfun_tt_n,s,catcoderegime) ;
- mfun_tt_s := lua.mp.mf_map_move(mfun_tt_n) ;
+ addto mfun_tt_o doublepath origin base_draw_options ;
+ mfun_tt_r := lua.mp.mf_map_text(mfun_tt_n,s,catcoderegime) ; % can become mfid_maptext
+ mfun_tt_s := lua.mp.mf_map_move(mfun_tt_n) ; % can become mfid_mapmove
addto mfun_tt_c doublepath unitsquare
xscaled wdpart mfun_tt_r
yscaled (htpart mfun_tt_r + dppart mfun_tt_r)
@@ -2279,3 +2287,13 @@ vardef lmt_do_poisson =
popparameters ;
)
enddef ;
+
+permanent
+ lmt_text, lmt_grid, lmt_axis, lmt_outline, lmt_followtext,
+ lmt_arrow, lmt_placeholder, % lmt_path,
+ lmt_function, lmt_poisson, lmt_mesh,
+ lmt_chart_circle, lmt_chart_histogram, lmt_chart_bar,
+ lmt_shade, lmt_contour, lmt_svg, lmt_surface,
+ lmt_registerglyphs, lmt_registerglyph,
+ lmt_remaptext, rawmaptext, svgtext, svg,
+ OverlayMesh ;
diff --git a/metapost/context/base/mpxl/mp-luas.mpxl b/metapost/context/base/mpxl/mp-luas.mpxl
index f3cb7e27a..14da16289 100644
--- a/metapost/context/base/mpxl/mp-luas.mpxl
+++ b/metapost/context/base/mpxl/mp-luas.mpxl
@@ -22,10 +22,11 @@ if known context_luas : endinput ; fi ;
% other metafun modules too. Of course in retrospect I should have done this five
% years earlier.
-boolean context_luas ; context_luas := true ;
+boolean context_luas ; context_luas := true ; immutable context_luas ;
-newinternal mfid_scriptindex ;
-mfid_scriptindex := runscript("mp.mf_script_index('scriptindex')") ;
+def newscriptindex suffix t = newinternal t ; immutable t ; enddef ;
+
+newscriptindex mfid_scriptindex ; mfid_scriptindex := runscript("mp.mf_script_index('scriptindex')") ;
def scriptindex = runscript mfid_scriptindex enddef ;
@@ -115,6 +116,8 @@ def message expr t =
lua.mp.report(tostring(t)) ;
enddef ;
+permanent newscriptindex, scriptindex, luacall, lua, lualist, mp, MP ;
+
% Color:
% We do a low level runscript:
@@ -123,32 +126,40 @@ enddef ;
% lua.mp.mf_named_color(s) % okay but, can also be
% lua.mp("mf_named_color",s) % which gives expansion mess
-newinternal mfid_resolvedcolor ; mfid_resolvedcolor := scriptindex "namedcolor" ;
+newscriptindex mfid_resolvedcolor ; mfid_resolvedcolor := scriptindex "namedcolor" ;
def resolvedcolor = runscript mfid_resolvedcolor enddef ;
+permanent resolvedcolor ;
+
% Modes:
vardef texmode (expr s) = lua.mp("mode", s) enddef ;
vardef systemmode(expr s) = lua.mp("systemmode",s) enddef ;
+permanent texmode, systemmode ;
+
% A few helpers
vardef isarray suffix a = lua.mp.isarray (str a) enddef ;
vardef prefix suffix a = lua.mp.prefix (str a) enddef ;
vardef dimension suffix a = lua.mp.dimension(str a) enddef ;
+permanent isarray, prefix, dimension ;
+
% More access
-newinternal mfid_getmacro ; mfid_getmacro := scriptindex "getmacro" ; def getmacro = runscript mfid_getmacro enddef ;
-newinternal mfid_getdimen ; mfid_getdimen := scriptindex "getdimen" ; def getdimen = runscript mfid_getdimen enddef ;
-newinternal mfid_getcount ; mfid_getcount := scriptindex "getcount" ; def getcount = runscript mfid_getcount enddef ;
-newinternal mfid_gettoks ; mfid_gettoks := scriptindex "gettoks" ; def gettoks = runscript mfid_gettoks enddef ;
+newscriptindex mfid_getmacro ; mfid_getmacro := scriptindex "getmacro" ; def getmacro = runscript mfid_getmacro enddef ;
+newscriptindex mfid_getdimen ; mfid_getdimen := scriptindex "getdimen" ; def getdimen = runscript mfid_getdimen enddef ;
+newscriptindex mfid_getcount ; mfid_getcount := scriptindex "getcount" ; def getcount = runscript mfid_getcount enddef ;
+newscriptindex mfid_gettoks ; mfid_gettoks := scriptindex "gettoks" ; def gettoks = runscript mfid_gettoks enddef ;
+
+newscriptindex mfid_setmacro ; mfid_setmacro := scriptindex "setmacro" ; def setmacro = runscript mfid_setmacro enddef ;
+newscriptindex mfid_setdimen ; mfid_setdimen := scriptindex "setdimen" ; def setdimen = runscript mfid_setdimen enddef ;
+newscriptindex mfid_setcount ; mfid_setcount := scriptindex "setcount" ; def setcount = runscript mfid_setcount enddef ;
+newscriptindex mfid_settoks ; mfid_settoks := scriptindex "settoks" ; def settoks = runscript mfid_settoks enddef ;
-newinternal mfid_setmacro ; mfid_setmacro := scriptindex "setmacro" ; def setmacro = runscript mfid_setmacro enddef ;
-newinternal mfid_setdimen ; mfid_setdimen := scriptindex "setdimen" ; def setdimen = runscript mfid_setdimen enddef ;
-newinternal mfid_setcount ; mfid_setcount := scriptindex "setcount" ; def setcount = runscript mfid_setcount enddef ;
-newinternal mfid_settoks ; mfid_settoks := scriptindex "settoks" ; def settoks = runscript mfid_settoks enddef ;
+permanent getmacro, getdimen, getcount, gettoks, setmacro, setdimen, setcount, settoks ;
vardef positionpath (expr name) = lua.mp.positionpath (name) enddef ;
vardef positioncurve (expr name) = lua.mp.positioncurve (name) enddef ;
@@ -160,10 +171,6 @@ vardef positionregion(expr name) = lua.mp.positionregion(name) enddef ;
vardef positionbox (expr name) = lua.mp.positionbox (name) enddef ;
vardef positionanchor = lua.mp.positionanchor() enddef ;
-let wdpart = redpart ;
-let htpart = greenpart ;
-let dppart = bluepart ;
-
vardef positioninregion =
currentpicture := currentpicture shifted - positionxy(positionanchor) ;
enddef ;
@@ -172,14 +179,23 @@ vardef positionatanchor(expr name) =
currentpicture := currentpicture shifted - positionxy(name) ;
enddef ;
+permanent positionpath, positioncurve, positionxy, positionpxy, positionwhd, positionpage,
+ positionregion, positionbox, positionanchor, positioninregion, positionatanchor ;
+
+let wdpart = redpart ;
+let htpart = greenpart ;
+let dppart = bluepart ;
+
+permanent wdpart, htpart, dppart;
+
vardef texvar(expr name) = lua.mp.texvar(name) enddef ;
vardef texstr(expr name) = lua.mp.texstr(name) enddef ;
-newinternal mfid_path_lengthof ; mfid_path_lengthof := scriptindex "pathlengthof" ;
-newinternal mfid_path_pointof ; mfid_path_pointof := scriptindex "pathpointof" ;
-newinternal mfid_path_leftof ; mfid_path_leftof := scriptindex "pathleftof" ;
-newinternal mfid_path_rightof ; mfid_path_rightof := scriptindex "pathrightof" ;
-newinternal mfid_path_reset ; mfid_path_reset := scriptindex "pathreset" ;
+newscriptindex mfid_path_lengthof ; mfid_path_lengthof := scriptindex "pathlengthof" ;
+newscriptindex mfid_path_pointof ; mfid_path_pointof := scriptindex "pathpointof" ;
+newscriptindex mfid_path_leftof ; mfid_path_leftof := scriptindex "pathleftof" ;
+newscriptindex mfid_path_rightof ; mfid_path_rightof := scriptindex "pathrightof" ;
+newscriptindex mfid_path_reset ; mfid_path_reset := scriptindex "pathreset" ;
% 25 pct gain
@@ -188,6 +204,8 @@ vardef pointof primary i = runscript mfid_path_pointof i endde
vardef leftof primary i = runscript mfid_path_leftof i enddef ;
vardef rightof primary i = runscript mfid_path_rightof i enddef ;
+permanent inpath, pointof, leftof, rightof ;
+
% another 10 pct gain
% def inpath = = 1 step 1 until runscript mfid_path_lengthof enddef ;
@@ -197,8 +215,8 @@ vardef rightof primary i = runscript mfid_path_rightof i endde
extra_endfig := extra_endfig & " runscript mfid_path_reset ; " ;
-newinternal mfid_utflen ; mfid_utflen := scriptindex "utflen" ;
-newinternal mfid_utfsub ; mfid_utfsub := scriptindex "utfsub" ;
+newscriptindex mfid_utflen ; mfid_utflen := scriptindex "utflen" ;
+newscriptindex mfid_utfsub ; mfid_utfsub := scriptindex "utfsub" ;
% def utflen = runscript mfid_utflen enddef ;
% def utfsub = runscript mfid_utfsub enddef ;
@@ -206,21 +224,23 @@ newinternal mfid_utfsub ; mfid_utfsub := scriptindex "utfsub" ;
vardef utflen(expr s) = runscript mfid_utflen s enddef ; % str
vardef utfsub(text t) = runscript mfid_utfsub t enddef ; % str, first, (optional) last
-newinternal mfid_getparameters ; mfid_getparameters := scriptindex "getparameters" ;
-newinternal mfid_presetparameters ; mfid_presetparameters := scriptindex "presetparameters" ;
-newinternal mfid_hasparameter ; mfid_hasparameter := scriptindex "hasparameter" ;
-newinternal mfid_hasoption ; mfid_hasoption := scriptindex "hasoption" ;
-newinternal mfid_getparameter ; mfid_getparameter := scriptindex "getparameter" ;
-newinternal mfid_getparameterdefault ; mfid_getparameterdefault := scriptindex "getparameterdefault" ;
-newinternal mfid_getparametercount ; mfid_getparametercount := scriptindex "getparametercount" ;
-newinternal mfid_getmaxparametercount ; mfid_getmaxparametercount := scriptindex "getmaxparametercount" ;
-newinternal mfid_getparameterpath ; mfid_getparameterpath := scriptindex "getparameterpath" ;
-newinternal mfid_getparameterpen ; mfid_getparameterpen := scriptindex "getparameterpen" ;
-newinternal mfid_getparametertext ; mfid_getparametertext := scriptindex "getparametertext" ;
-%%%%%%%%%%% mfid_getparameteroption ; mfid_getparameteroption := scriptindex "getparameteroption" ;
-newinternal mfid_applyparameters ; mfid_applyparameters := scriptindex "applyparameters" ;
-newinternal mfid_pushparameters ; mfid_pushparameters := scriptindex "pushparameters" ;
-newinternal mfid_popparameters ; mfid_popparameters := scriptindex "popparameters" ;
+permanent utflen, utfsub ;
+
+newscriptindex mfid_getparameters ; mfid_getparameters := scriptindex "getparameters" ;
+newscriptindex mfid_presetparameters ; mfid_presetparameters := scriptindex "presetparameters" ;
+newscriptindex mfid_hasparameter ; mfid_hasparameter := scriptindex "hasparameter" ;
+newscriptindex mfid_hasoption ; mfid_hasoption := scriptindex "hasoption" ;
+newscriptindex mfid_getparameter ; mfid_getparameter := scriptindex "getparameter" ;
+newscriptindex mfid_getparameterdefault ; mfid_getparameterdefault := scriptindex "getparameterdefault" ;
+newscriptindex mfid_getparametercount ; mfid_getparametercount := scriptindex "getparametercount" ;
+newscriptindex mfid_getmaxparametercount ; mfid_getmaxparametercount := scriptindex "getmaxparametercount" ;
+newscriptindex mfid_getparameterpath ; mfid_getparameterpath := scriptindex "getparameterpath" ;
+newscriptindex mfid_getparameterpen ; mfid_getparameterpen := scriptindex "getparameterpen" ;
+newscriptindex mfid_getparametertext ; mfid_getparametertext := scriptindex "getparametertext" ;
+% mfid_getparameteroption ; mfid_getparameteroption := scriptindex "getparameteroption" ;
+newscriptindex mfid_applyparameters ; mfid_applyparameters := scriptindex "applyparameters" ;
+newscriptindex mfid_pushparameters ; mfid_pushparameters := scriptindex "pushparameters" ;
+newscriptindex mfid_popparameters ; mfid_popparameters := scriptindex "popparameters" ;
def getparameters = runscript mfid_getparameters enddef ;
def presetparameters = runscript mfid_presetparameters enddef ;
@@ -233,24 +253,32 @@ def getmaxparametercount = runscript mfid_getmaxparametercount enddef ;
def getparameterpath = runscript mfid_getparameterpath enddef ;
def getparameterpen = runscript mfid_getparameterpen enddef ;
def getparametertext = runscript mfid_getparametertext enddef ;
-%%% getparameteroption = runscript mfid_getparameteroption enddef ;
+% getparameteroption = runscript mfid_getparameteroption enddef ;
def applyparameters = runscript mfid_applyparameters enddef ;
def pushparameters = runscript mfid_pushparameters enddef ;
def popparameters = runscript mfid_popparameters enddef ;
+permanent getparameters, presetparameters, hasparameter, hasoption, getparameter, getparameterdefault,
+ getparametercount, getmaxparametercount, getparameterpath, getparameterpen, getparametertext, % getparameteroption,
+ applyparameters, pushparameters, popparameters ;
+
% This might also be done in stock mkiv:
-newinternal mfid_year ; mfid_year := scriptindex "year" ; vardef year = runscript mfid_year enddef ;
-newinternal mfid_month ; mfid_month := scriptindex "month" ; vardef month = runscript mfid_month enddef ;
-newinternal mfid_day ; mfid_day := scriptindex "day" ; vardef day = runscript mfid_day enddef ;
-newinternal mfid_hour ; mfid_hour := scriptindex "hour" ; vardef hour = runscript mfid_hour enddef ;
-newinternal mfid_minute ; mfid_minute := scriptindex "minute" ; vardef minute = runscript mfid_minute enddef ;
-newinternal mfid_second ; mfid_second := scriptindex "second" ; vardef second = runscript mfid_second enddef ;
+newscriptindex mfid_year ; mfid_year := scriptindex "year" ; vardef year = runscript mfid_year enddef ;
+newscriptindex mfid_month ; mfid_month := scriptindex "month" ; vardef month = runscript mfid_month enddef ;
+newscriptindex mfid_day ; mfid_day := scriptindex "day" ; vardef day = runscript mfid_day enddef ;
+newscriptindex mfid_hour ; mfid_hour := scriptindex "hour" ; vardef hour = runscript mfid_hour enddef ;
+newscriptindex mfid_minute ; mfid_minute := scriptindex "minute" ; vardef minute = runscript mfid_minute enddef ;
+newscriptindex mfid_second ; mfid_second := scriptindex "second" ; vardef second = runscript mfid_second enddef ;
+
+permanent year, month, day, hour, minute, second ; % overloaded
% You cannot overload a local color bu using a prefix works ok:
%
% \definecolor [ name = "mp:myred", r = .9 ] ;
-newinternal mfid_definecolor ; mfid_definecolor := scriptindex "definecolor" ;
+newscriptindex mfid_definecolor ; mfid_definecolor := scriptindex "definecolor" ;
def definecolor = runscript mfid_definecolor ; enddef ; % the semicolon prevents lookahead
+
+permanent definecolor ;
diff --git a/metapost/context/base/mpxl/mp-math.mpxl b/metapost/context/base/mpxl/mp-math.mpxl
index ea8c1cd7c..aabd4c658 100644
--- a/metapost/context/base/mpxl/mp-math.mpxl
+++ b/metapost/context/base/mpxl/mp-math.mpxl
@@ -13,111 +13,111 @@
if known context_math : endinput ; fi ;
-boolean context_math ; context_math := true ;
+boolean context_math ; context_math := true ; immutable context_math ;
% draw textext(decimal runscript("mp.numeric(xmath.gamma(.12))")) ;
-newinternal mfid_m_acos ; mfid_m_acos := scriptindex "m_acos" ; def m_acos = runscript mfid_m_acos enddef ;
-newinternal mfid_m_acosh ; mfid_m_acosh := scriptindex "m_acosh" ; def m_acosh = runscript mfid_m_acosh enddef ;
-newinternal mfid_m_asin ; mfid_m_asin := scriptindex "m_asin" ; def m_asin = runscript mfid_m_asin enddef ;
-newinternal mfid_m_asinh ; mfid_m_asinh := scriptindex "m_asinh" ; def m_asinh = runscript mfid_m_asinh enddef ;
-newinternal mfid_m_atan ; mfid_m_atan := scriptindex "m_atan" ; def m_atan = runscript mfid_m_atan enddef ;
-newinternal mfid_m_atantwo ; mfid_m_atantwo := scriptindex "m_atan2" ; def m_atantwo = runscript mfid_m_atantwo enddef ; % atan2
-newinternal mfid_m_atanh ; mfid_m_atanh := scriptindex "m_atanh" ; def m_atanh = runscript mfid_m_atanh enddef ;
-newinternal mfid_m_cbrt ; mfid_m_cbrt := scriptindex "m_cbrt" ; def m_cbrt = runscript mfid_m_cbrt enddef ;
-newinternal mfid_m_ceil ; mfid_m_ceil := scriptindex "m_ceil" ; def m_ceil = runscript mfid_m_ceil enddef ;
-newinternal mfid_m_copysign ; mfid_m_copysign := scriptindex "m_copysign" ; def m_copysign = runscript mfid_m_copysign enddef ;
-newinternal mfid_m_cos ; mfid_m_cos := scriptindex "m_cos" ; def m_cos = runscript mfid_m_cos enddef ;
-newinternal mfid_m_cosh ; mfid_m_cosh := scriptindex "m_cosh" ; def m_cosh = runscript mfid_m_cosh enddef ;
-newinternal mfid_m_deg ; mfid_m_deg := scriptindex "m_deg" ; def m_deg = runscript mfid_m_deg enddef ;
-newinternal mfid_m_erf ; mfid_m_erf := scriptindex "m_erf" ; def m_erf = runscript mfid_m_erf enddef ;
-newinternal mfid_m_erfc ; mfid_m_erfc := scriptindex "m_erfc" ; def m_erfc = runscript mfid_m_erfc enddef ;
-newinternal mfid_m_exp ; mfid_m_exp := scriptindex "m_exp" ; def m_exp = runscript mfid_m_exp enddef ;
-newinternal mfid_m_exptwo ; mfid_m_exptwo := scriptindex "m_exp2" ; def m_exptwo = runscript mfid_m_exptwo enddef ; % exp2
-newinternal mfid_m_expm ; mfid_m_expm := scriptindex "m_expm1" ; def m_expm = runscript mfid_m_expm enddef ; % expm1
-newinternal mfid_m_fabs ; mfid_m_fabs := scriptindex "m_fabs" ; def m_fabs = runscript mfid_m_fabs enddef ;
-newinternal mfid_m_fdim ; mfid_m_fdim := scriptindex "m_fdim" ; def m_fdim = runscript mfid_m_fdim enddef ;
-newinternal mfid_m_floor ; mfid_m_floor := scriptindex "m_floor" ; def m_floor = runscript mfid_m_floor enddef ;
-newinternal mfid_m_fma ; mfid_m_fma := scriptindex "m_fma" ; def m_fma = runscript mfid_m_fma enddef ;
-newinternal mfid_m_fmax ; mfid_m_fmax := scriptindex "m_fmax" ; def m_fmax = runscript mfid_m_fmax enddef ;
-newinternal mfid_m_fmin ; mfid_m_fmin := scriptindex "m_fmin" ; def m_fmin = runscript mfid_m_fmin enddef ;
-newinternal mfid_m_fmod ; mfid_m_fmod := scriptindex "m_fmod" ; def m_fmod = runscript mfid_m_fmod enddef ;
-newinternal mfid_m_frexp ; mfid_m_frexp := scriptindex "m_frexp" ; def m_frexp = runscript mfid_m_frexp enddef ;
-newinternal mfid_m_gamma ; mfid_m_gamma := scriptindex "m_gamma" ; def m_gamma = runscript mfid_m_gamma enddef ;
-newinternal mfid_m_hypot ; mfid_m_hypot := scriptindex "m_hypot" ; def m_hypot = runscript mfid_m_hypot enddef ;
-newinternal mfid_m_isfinite ; mfid_m_isfinite := scriptindex "m_isfinite" ; def m_isfinite = runscript mfid_m_isfinite enddef ;
-newinternal mfid_m_isinf ; mfid_m_isinf := scriptindex "m_isinf" ; def m_isinf = runscript mfid_m_isinf enddef ;
-newinternal mfid_m_isnan ; mfid_m_isnan := scriptindex "m_isnan" ; def m_isnan = runscript mfid_m_isnan enddef ;
-newinternal mfid_m_isnormal ; mfid_m_isnormal := scriptindex "m_isnormal" ; def m_isnormal = runscript mfid_m_isnormal enddef ;
-newinternal mfid_m_jz ; mfid_m_jz := scriptindex "m_j0" ; def m_jz = runscript mfid_m_jz enddef ; % j0
-newinternal mfid_m_j ; mfid_m_j := scriptindex "m_j1" ; def m_j = runscript mfid_m_j enddef ; % j1
-newinternal mfid_m_jn ; mfid_m_jn := scriptindex "m_jn" ; def m_jn = runscript mfid_m_jn enddef ;
-newinternal mfid_m_ldexp ; mfid_m_ldexp := scriptindex "m_ldexp" ; def m_ldexp = runscript mfid_m_ldexp enddef ;
-newinternal mfid_m_lgamma ; mfid_m_lgamma := scriptindex "m_lgamma" ; def m_lgamma = runscript mfid_m_lgamma enddef ;
-newinternal mfid_m_log ; mfid_m_log := scriptindex "m_log" ; def m_log = runscript mfid_m_log enddef ;
-newinternal mfid_m_logten ; mfid_m_logte := scriptindex "m_log10" ; def m_logten = runscript mfid_m_logten enddef ; % log10
-newinternal mfid_m_logp ; mfid_m_logp := scriptindex "m_log1p" ; def m_logp = runscript mfid_m_logp enddef ; % log1p
-newinternal mfid_m_logtwo ; mfid_m_logtwo := scriptindex "m_log2" ; def m_logtwo = runscript mfid_m_logtwo enddef ; % log2
-newinternal mfid_m_logb ; mfid_m_logb := scriptindex "m_logb" ; def m_logb = runscript mfid_m_logb enddef ;
-newinternal mfid_m_modf ; mfid_m_modf := scriptindex "m_modf" ; def m_modf = runscript mfid_m_modf enddef ;
-newinternal mfid_m_nearbyint ; mfid_m_nearbyint := scriptindex "m_nearbyint" ; def m_nearbyint = runscript mfid_m_nearbyint enddef ;
-newinternal mfid_m_nextafter ; mfid_m_nextafter := scriptindex "m_nextafter" ; def m_nextafter = runscript mfid_m_nextafter enddef ;
-newinternal mfid_m_pow ; mfid_m_pow := scriptindex "m_pow" ; def m_pow = runscript mfid_m_pow enddef ;
-newinternal mfid_m_rad ; mfid_m_rad := scriptindex "m_rad" ; def m_rad = runscript mfid_m_rad enddef ;
-newinternal mfid_m_remainder ; mfid_m_remainder := scriptindex "m_remainder" ; def m_remainder = runscript mfid_m_remainder enddef ;
-newinternal mfid_m_remquo ; mfid_m_remquo := scriptindex "m_remquo" ; def m_remquo = runscript mfid_m_remquo enddef ;
-newinternal mfid_m_round ; mfid_m_round := scriptindex "m_round" ; def m_round = runscript mfid_m_round enddef ;
-newinternal mfid_m_scalbn ; mfid_m_scalbn := scriptindex "m_scalbn" ; def m_scalbn = runscript mfid_m_scalbn enddef ;
-newinternal mfid_m_sin ; mfid_m_sin := scriptindex "m_sin" ; def m_sin = runscript mfid_m_sin enddef ;
-newinternal mfid_m_sinh ; mfid_m_sinh := scriptindex "m_sinh" ; def m_sinh = runscript mfid_m_sinh enddef ;
-newinternal mfid_m_sqrt ; mfid_m_sqrt := scriptindex "m_sqrt" ; def m_sqrt = runscript mfid_m_sqrt enddef ;
-newinternal mfid_m_tan ; mfid_m_tan := scriptindex "m_tan" ; def m_tan = runscript mfid_m_tan enddef ;
-newinternal mfid_m_tanh ; mfid_m_tanh := scriptindex "m_tanh" ; def m_tanh = runscript mfid_m_tanh enddef ;
-newinternal mfid_m_tgamma ; mfid_m_tgamma := scriptindex "m_tgamma" ; def m_tgamma = runscript mfid_m_tgamma enddef ;
-newinternal mfid_m_trunc ; mfid_m_trunc := scriptindex "m_trunc" ; def m_trunc = runscript mfid_m_trunc enddef ;
-newinternal mfid_m_yz ; mfid_m_yz := scriptindex "m_y0" ; def m_yz = runscript mfid_m_yz enddef ; % y0
-newinternal mfid_m_y ; mfid_m_y := scriptindex "m_y1" ; def m_y = runscript mfid_m_y enddef ; % y1
-newinternal mfid_m_yn ; mfid_m_yn := scriptindex "m_yn" ; def m_yn = runscript mfid_m_yn enddef ;
-
-newinternal mfid_c_sin ; mfid_c_asin := scriptindex "c_sin" ; def c_sin = runscript mfid_c_sin enddef ;
-newinternal mfid_c_cos ; mfid_c_acos := scriptindex "c_cos" ; def c_cos = runscript mfid_c_cos enddef ;
-newinternal mfid_c_tan ; mfid_c_acos := scriptindex "c_tan" ; def c_tan = runscript mfid_c_tan enddef ;
-newinternal mfid_c_sinh ; mfid_c_acos := scriptindex "c_sinh" ; def c_sinh = runscript mfid_c_sinh enddef ;
-newinternal mfid_c_cosh ; mfid_c_acos := scriptindex "c_cosh" ; def c_cosh = runscript mfid_c_cosh enddef ;
-newinternal mfid_c_tanh ; mfid_c_acos := scriptindex "c_tanh" ; def c_tanh = runscript mfid_c_tanh enddef ;
-
-newinternal mfid_c_asin ; mfid_c_acos := scriptindex "c_asin" ; def c_asin = runscript mfid_c_asin enddef ;
-newinternal mfid_c_acos ; mfid_c_acos := scriptindex "c_acos" ; def c_acos = runscript mfid_c_acos enddef ;
-newinternal mfid_c_atan ; mfid_c_acos := scriptindex "c_atan" ; def c_atan = runscript mfid_c_atan enddef ;
-newinternal mfid_c_asinh ; mfid_c_acos := scriptindex "c_asinh" ; def c_asinh = runscript mfid_c_asinh enddef ;
-newinternal mfid_c_acosh ; mfid_c_acos := scriptindex "c_acosh" ; def c_acosh = runscript mfid_c_acosh enddef ;
-newinternal mfid_c_atanh ; mfid_c_acos := scriptindex "c_atanh" ; def c_atanh = runscript mfid_c_atanh enddef ;
-
-newinternal mfid_c_sqrt ; mfid_c_acos := scriptindex "c_sqrt" ; def c_sqrt = runscript mfid_c_sqrt enddef ;
-newinternal mfid_c_abs ; mfid_c_acos := scriptindex "c_abs" ; def c_abs = runscript mfid_c_abs enddef ;
-newinternal mfid_c_arg ; mfid_c_acos := scriptindex "c_arg" ; def c_arg = runscript mfid_c_arg enddef ;
-newinternal mfid_c_conj ; mfid_c_acos := scriptindex "c_conj" ; def c_conj = runscript mfid_c_conj enddef ;
-newinternal mfid_c_exp ; mfid_c_acos := scriptindex "c_exp" ; def c_exp = runscript mfid_c_exp enddef ;
-newinternal mfid_c_log ; mfid_c_acos := scriptindex "c_log" ; def c_log = runscript mfid_c_log enddef ;
-newinternal mfid_c_proj ; mfid_c_acos := scriptindex "c_proj" ; def c_proj = runscript mfid_c_proj enddef ;
-
-newinternal mfid_c_erf ; mfid_c_erf := scriptindex "c_erf" ; def c_erf = runscript mfid_c_erf enddef ;
-newinternal mfid_c_erfc ; mfid_c_erfc := scriptindex "c_erfc" ; def c_erfc = runscript mfid_c_erfc enddef ;
-newinternal mfid_c_erfcx ; mfid_c_erfcx := scriptindex "c_erfcx" ; def c_erfcx = runscript mfid_c_erfcx enddef ;
-newinternal mfid_c_erfi ; mfid_c_erfi := scriptindex "c_erfi" ; def c_erfi = runscript mfid_c_erfi enddef ;
-
-% mfid_c_imag ; mfid_c_acos := scriptindex "c_imag" ; def c_imag = runscript mfid_c_imag enddef ;
-% mfid_c_real ; mfid_c_acos := scriptindex "c_real" ; def c_real = runscript mfid_c_real enddef ;
-% mfid_c_neg ; mfid_c_neg := scriptindex "c_neg" ; def c_neg = runscript mfid_c_neg enddef ;
-
-newinternal mfid_c_pow ; mfid_c_pow := scriptindex "c_pow" ; def c_pow (expr a,b) = runscript mfid_c_pow a b enddef ;
-% mfid_c_add ; mfid_c_add := scriptindex "c_add" ; def c_add (expr a,b) = runscript mfid_c_add a b enddef ;
-% mfid_c_sub ; mfid_c_sub := scriptindex "c_sub" ; def c_sub (expr a,b) = runscript mfid_c_sub a b enddef ;
-newinternal mfid_c_mul ; mfid_c_mul := scriptindex "c_mul" ; def c_mul (expr a,b) = runscript mfid_c_mul a b enddef ;
-newinternal mfid_c_div ; mfid_c_div := scriptindex "c_div" ; def c_div (expr a,b) = runscript mfid_c_div a b enddef ;
-
-newinternal mfid_c_voigt ; mfid_c_voigt := scriptindex "c_voigt" ; def c_voigt (expr a,b,c) = runscript mfid_c_voigt a b c enddef ;
-newinternal mfid_c_voigt_hwhm ; mfid_c_voigt_hwhm := scriptindex "c_voigt_hwhm" ; def c_voigt_hwhm(expr a,b) = runscript mfid_c_voigt_hwhm a b enddef ;
+newscriptindex mfid_m_acos ; mfid_m_acos := scriptindex "m_acos" ; def m_acos = runscript mfid_m_acos enddef ;
+newscriptindex mfid_m_acosh ; mfid_m_acosh := scriptindex "m_acosh" ; def m_acosh = runscript mfid_m_acosh enddef ;
+newscriptindex mfid_m_asin ; mfid_m_asin := scriptindex "m_asin" ; def m_asin = runscript mfid_m_asin enddef ;
+newscriptindex mfid_m_asinh ; mfid_m_asinh := scriptindex "m_asinh" ; def m_asinh = runscript mfid_m_asinh enddef ;
+newscriptindex mfid_m_atan ; mfid_m_atan := scriptindex "m_atan" ; def m_atan = runscript mfid_m_atan enddef ;
+newscriptindex mfid_m_atantwo ; mfid_m_atantwo := scriptindex "m_atan2" ; def m_atantwo = runscript mfid_m_atantwo enddef ; % atan2
+newscriptindex mfid_m_atanh ; mfid_m_atanh := scriptindex "m_atanh" ; def m_atanh = runscript mfid_m_atanh enddef ;
+newscriptindex mfid_m_cbrt ; mfid_m_cbrt := scriptindex "m_cbrt" ; def m_cbrt = runscript mfid_m_cbrt enddef ;
+newscriptindex mfid_m_ceil ; mfid_m_ceil := scriptindex "m_ceil" ; def m_ceil = runscript mfid_m_ceil enddef ;
+newscriptindex mfid_m_copysign ; mfid_m_copysign := scriptindex "m_copysign" ; def m_copysign = runscript mfid_m_copysign enddef ;
+newscriptindex mfid_m_cos ; mfid_m_cos := scriptindex "m_cos" ; def m_cos = runscript mfid_m_cos enddef ;
+newscriptindex mfid_m_cosh ; mfid_m_cosh := scriptindex "m_cosh" ; def m_cosh = runscript mfid_m_cosh enddef ;
+newscriptindex mfid_m_deg ; mfid_m_deg := scriptindex "m_deg" ; def m_deg = runscript mfid_m_deg enddef ;
+newscriptindex mfid_m_erf ; mfid_m_erf := scriptindex "m_erf" ; def m_erf = runscript mfid_m_erf enddef ;
+newscriptindex mfid_m_erfc ; mfid_m_erfc := scriptindex "m_erfc" ; def m_erfc = runscript mfid_m_erfc enddef ;
+newscriptindex mfid_m_exp ; mfid_m_exp := scriptindex "m_exp" ; def m_exp = runscript mfid_m_exp enddef ;
+newscriptindex mfid_m_exptwo ; mfid_m_exptwo := scriptindex "m_exp2" ; def m_exptwo = runscript mfid_m_exptwo enddef ; % exp2
+newscriptindex mfid_m_expm ; mfid_m_expm := scriptindex "m_expm1" ; def m_expm = runscript mfid_m_expm enddef ; % expm1
+newscriptindex mfid_m_fabs ; mfid_m_fabs := scriptindex "m_fabs" ; def m_fabs = runscript mfid_m_fabs enddef ;
+newscriptindex mfid_m_fdim ; mfid_m_fdim := scriptindex "m_fdim" ; def m_fdim = runscript mfid_m_fdim enddef ;
+newscriptindex mfid_m_floor ; mfid_m_floor := scriptindex "m_floor" ; def m_floor = runscript mfid_m_floor enddef ;
+newscriptindex mfid_m_fma ; mfid_m_fma := scriptindex "m_fma" ; def m_fma = runscript mfid_m_fma enddef ;
+newscriptindex mfid_m_fmax ; mfid_m_fmax := scriptindex "m_fmax" ; def m_fmax = runscript mfid_m_fmax enddef ;
+newscriptindex mfid_m_fmin ; mfid_m_fmin := scriptindex "m_fmin" ; def m_fmin = runscript mfid_m_fmin enddef ;
+newscriptindex mfid_m_fmod ; mfid_m_fmod := scriptindex "m_fmod" ; def m_fmod = runscript mfid_m_fmod enddef ;
+newscriptindex mfid_m_frexp ; mfid_m_frexp := scriptindex "m_frexp" ; def m_frexp = runscript mfid_m_frexp enddef ;
+newscriptindex mfid_m_gamma ; mfid_m_gamma := scriptindex "m_gamma" ; def m_gamma = runscript mfid_m_gamma enddef ;
+newscriptindex mfid_m_hypot ; mfid_m_hypot := scriptindex "m_hypot" ; def m_hypot = runscript mfid_m_hypot enddef ;
+newscriptindex mfid_m_isfinite ; mfid_m_isfinite := scriptindex "m_isfinite" ; def m_isfinite = runscript mfid_m_isfinite enddef ;
+newscriptindex mfid_m_isinf ; mfid_m_isinf := scriptindex "m_isinf" ; def m_isinf = runscript mfid_m_isinf enddef ;
+newscriptindex mfid_m_isnan ; mfid_m_isnan := scriptindex "m_isnan" ; def m_isnan = runscript mfid_m_isnan enddef ;
+newscriptindex mfid_m_isnormal ; mfid_m_isnormal := scriptindex "m_isnormal" ; def m_isnormal = runscript mfid_m_isnormal enddef ;
+newscriptindex mfid_m_jz ; mfid_m_jz := scriptindex "m_j0" ; def m_jz = runscript mfid_m_jz enddef ; % j0
+newscriptindex mfid_m_j ; mfid_m_j := scriptindex "m_j1" ; def m_j = runscript mfid_m_j enddef ; % j1
+newscriptindex mfid_m_jn ; mfid_m_jn := scriptindex "m_jn" ; def m_jn = runscript mfid_m_jn enddef ;
+newscriptindex mfid_m_ldexp ; mfid_m_ldexp := scriptindex "m_ldexp" ; def m_ldexp = runscript mfid_m_ldexp enddef ;
+newscriptindex mfid_m_lgamma ; mfid_m_lgamma := scriptindex "m_lgamma" ; def m_lgamma = runscript mfid_m_lgamma enddef ;
+newscriptindex mfid_m_log ; mfid_m_log := scriptindex "m_log" ; def m_log = runscript mfid_m_log enddef ;
+newscriptindex mfid_m_logten ; mfid_m_logten := scriptindex "m_log10" ; def m_logten = runscript mfid_m_logten enddef ; % log10
+newscriptindex mfid_m_logp ; mfid_m_logp := scriptindex "m_log1p" ; def m_logp = runscript mfid_m_logp enddef ; % log1p
+newscriptindex mfid_m_logtwo ; mfid_m_logtwo := scriptindex "m_log2" ; def m_logtwo = runscript mfid_m_logtwo enddef ; % log2
+newscriptindex mfid_m_logb ; mfid_m_logb := scriptindex "m_logb" ; def m_logb = runscript mfid_m_logb enddef ;
+newscriptindex mfid_m_modf ; mfid_m_modf := scriptindex "m_modf" ; def m_modf = runscript mfid_m_modf enddef ;
+newscriptindex mfid_m_nearbyint ; mfid_m_nearbyint := scriptindex "m_nearbyint" ; def m_nearbyint = runscript mfid_m_nearbyint enddef ;
+newscriptindex mfid_m_nextafter ; mfid_m_nextafter := scriptindex "m_nextafter" ; def m_nextafter = runscript mfid_m_nextafter enddef ;
+newscriptindex mfid_m_pow ; mfid_m_pow := scriptindex "m_pow" ; def m_pow = runscript mfid_m_pow enddef ;
+newscriptindex mfid_m_rad ; mfid_m_rad := scriptindex "m_rad" ; def m_rad = runscript mfid_m_rad enddef ;
+newscriptindex mfid_m_remainder ; mfid_m_remainder := scriptindex "m_remainder" ; def m_remainder = runscript mfid_m_remainder enddef ;
+newscriptindex mfid_m_remquo ; mfid_m_remquo := scriptindex "m_remquo" ; def m_remquo = runscript mfid_m_remquo enddef ;
+newscriptindex mfid_m_round ; mfid_m_round := scriptindex "m_round" ; def m_round = runscript mfid_m_round enddef ;
+newscriptindex mfid_m_scalbn ; mfid_m_scalbn := scriptindex "m_scalbn" ; def m_scalbn = runscript mfid_m_scalbn enddef ;
+newscriptindex mfid_m_sin ; mfid_m_sin := scriptindex "m_sin" ; def m_sin = runscript mfid_m_sin enddef ;
+newscriptindex mfid_m_sinh ; mfid_m_sinh := scriptindex "m_sinh" ; def m_sinh = runscript mfid_m_sinh enddef ;
+newscriptindex mfid_m_sqrt ; mfid_m_sqrt := scriptindex "m_sqrt" ; def m_sqrt = runscript mfid_m_sqrt enddef ;
+newscriptindex mfid_m_tan ; mfid_m_tan := scriptindex "m_tan" ; def m_tan = runscript mfid_m_tan enddef ;
+newscriptindex mfid_m_tanh ; mfid_m_tanh := scriptindex "m_tanh" ; def m_tanh = runscript mfid_m_tanh enddef ;
+newscriptindex mfid_m_tgamma ; mfid_m_tgamma := scriptindex "m_tgamma" ; def m_tgamma = runscript mfid_m_tgamma enddef ;
+newscriptindex mfid_m_trunc ; mfid_m_trunc := scriptindex "m_trunc" ; def m_trunc = runscript mfid_m_trunc enddef ;
+newscriptindex mfid_m_yz ; mfid_m_yz := scriptindex "m_y0" ; def m_yz = runscript mfid_m_yz enddef ; % y0
+newscriptindex mfid_m_y ; mfid_m_y := scriptindex "m_y1" ; def m_y = runscript mfid_m_y enddef ; % y1
+newscriptindex mfid_m_yn ; mfid_m_yn := scriptindex "m_yn" ; def m_yn = runscript mfid_m_yn enddef ;
+
+newscriptindex mfid_c_sin ; mfid_c_asin := scriptindex "c_sin" ; def c_sin = runscript mfid_c_sin enddef ;
+newscriptindex mfid_c_cos ; mfid_c_acos := scriptindex "c_cos" ; def c_cos = runscript mfid_c_cos enddef ;
+newscriptindex mfid_c_tan ; mfid_c_acos := scriptindex "c_tan" ; def c_tan = runscript mfid_c_tan enddef ;
+newscriptindex mfid_c_sinh ; mfid_c_acos := scriptindex "c_sinh" ; def c_sinh = runscript mfid_c_sinh enddef ;
+newscriptindex mfid_c_cosh ; mfid_c_acos := scriptindex "c_cosh" ; def c_cosh = runscript mfid_c_cosh enddef ;
+newscriptindex mfid_c_tanh ; mfid_c_acos := scriptindex "c_tanh" ; def c_tanh = runscript mfid_c_tanh enddef ;
+
+newscriptindex mfid_c_asin ; mfid_c_acos := scriptindex "c_asin" ; def c_asin = runscript mfid_c_asin enddef ;
+newscriptindex mfid_c_acos ; mfid_c_acos := scriptindex "c_acos" ; def c_acos = runscript mfid_c_acos enddef ;
+newscriptindex mfid_c_atan ; mfid_c_acos := scriptindex "c_atan" ; def c_atan = runscript mfid_c_atan enddef ;
+newscriptindex mfid_c_asinh ; mfid_c_acos := scriptindex "c_asinh" ; def c_asinh = runscript mfid_c_asinh enddef ;
+newscriptindex mfid_c_acosh ; mfid_c_acos := scriptindex "c_acosh" ; def c_acosh = runscript mfid_c_acosh enddef ;
+newscriptindex mfid_c_atanh ; mfid_c_acos := scriptindex "c_atanh" ; def c_atanh = runscript mfid_c_atanh enddef ;
+
+newscriptindex mfid_c_sqrt ; mfid_c_acos := scriptindex "c_sqrt" ; def c_sqrt = runscript mfid_c_sqrt enddef ;
+newscriptindex mfid_c_abs ; mfid_c_acos := scriptindex "c_abs" ; def c_abs = runscript mfid_c_abs enddef ;
+newscriptindex mfid_c_arg ; mfid_c_acos := scriptindex "c_arg" ; def c_arg = runscript mfid_c_arg enddef ;
+newscriptindex mfid_c_conj ; mfid_c_acos := scriptindex "c_conj" ; def c_conj = runscript mfid_c_conj enddef ;
+newscriptindex mfid_c_exp ; mfid_c_acos := scriptindex "c_exp" ; def c_exp = runscript mfid_c_exp enddef ;
+newscriptindex mfid_c_log ; mfid_c_acos := scriptindex "c_log" ; def c_log = runscript mfid_c_log enddef ;
+newscriptindex mfid_c_proj ; mfid_c_acos := scriptindex "c_proj" ; def c_proj = runscript mfid_c_proj enddef ;
+
+newscriptindex mfid_c_erf ; mfid_c_erf := scriptindex "c_erf" ; def c_erf = runscript mfid_c_erf enddef ;
+newscriptindex mfid_c_erfc ; mfid_c_erfc := scriptindex "c_erfc" ; def c_erfc = runscript mfid_c_erfc enddef ;
+newscriptindex mfid_c_erfcx ; mfid_c_erfcx := scriptindex "c_erfcx" ; def c_erfcx = runscript mfid_c_erfcx enddef ;
+newscriptindex mfid_c_erfi ; mfid_c_erfi := scriptindex "c_erfi" ; def c_erfi = runscript mfid_c_erfi enddef ;
+
+% mfid_c_imag ; mfid_c_acos := scriptindex "c_imag" ; def c_imag = runscript mfid_c_imag enddef ;
+% mfid_c_real ; mfid_c_acos := scriptindex "c_real" ; def c_real = runscript mfid_c_real enddef ;
+% mfid_c_neg ; mfid_c_neg := scriptindex "c_neg" ; def c_neg = runscript mfid_c_neg enddef ;
+
+newscriptindex mfid_c_pow ; mfid_c_pow := scriptindex "c_pow" ; def c_pow (expr a,b) = runscript mfid_c_pow a b enddef ;
+% mfid_c_add ; mfid_c_add := scriptindex "c_add" ; def c_add (expr a,b) = runscript mfid_c_add a b enddef ;
+% mfid_c_sub ; mfid_c_sub := scriptindex "c_sub" ; def c_sub (expr a,b) = runscript mfid_c_sub a b enddef ;
+newscriptindex mfid_c_mul ; mfid_c_mul := scriptindex "c_mul" ; def c_mul (expr a,b) = runscript mfid_c_mul a b enddef ;
+newscriptindex mfid_c_div ; mfid_c_div := scriptindex "c_div" ; def c_div (expr a,b) = runscript mfid_c_div a b enddef ;
+
+newscriptindex mfid_c_voigt ; mfid_c_voigt := scriptindex "c_voigt" ; def c_voigt (expr a,b,c) = runscript mfid_c_voigt a b c enddef ;
+newscriptindex mfid_c_voigt_hwhm ; mfid_c_voigt_hwhm := scriptindex "c_voigt_hwhm" ; def c_voigt_hwhm(expr a,b) = runscript mfid_c_voigt_hwhm a b enddef ;
vardef c_add (expr a, b) = a + b enddef ;
vardef c_sub (expr a, b) = a + b enddef ;
@@ -146,7 +146,6 @@ if (numbersystem == "scaled") or (numbersystem == "double") :
vardef invcos primary x = (m_acos(x))/radian enddef ;
vardef invtan primary x = (m_atan(x))/radian enddef ;
-
% vardef sind primary x = angle(m_sin x) enddef ;
% vardef cosd primary x = angle(m_cos x) enddef ;
% vardef tand primary x = angle(m_tan x) enddef ;
@@ -158,4 +157,27 @@ if (numbersystem == "scaled") or (numbersystem == "double") :
% vardef tand primary x = sind(x)/cosd(x) enddef ;
% vardef cotd primary x = cosd(x)/sind(x) enddef ;
+ permanent sin, cos, tan, sinh, cosh, tanh, asin, acos, atan, asinh, acosh, atanh, invsin, invcos, invtan, asind, acosd, atand ;
+
fi ;
+
+permanent
+ m_acos, m_acosh, m_asin, m_asinh, m_atan, m_atantwo, m_atanh, m_cbrt, m_ceil,
+ m_copysign, m_cos, m_cosh, m_deg, m_erf, m_erfc, m_exp, m_exptwo, m_expm, m_fabs,
+ m_fdim, m_floor, m_fma, m_fmax, m_fmin, m_fmod, m_frexp, m_gamma, m_hypot,
+ m_isfinite, m_isinf, m_isnan, m_isnormal, m_jz, m_j, m_jn, m_ldexp, m_lgamma,
+ m_log, m_logten, m_logp, m_logtwo, m_logb, m_modf, m_nearbyint, m_nextafter,
+ m_pow, m_rad, m_remainder, m_remquo, m_round, m_scalbn, m_sin, m_sinh, m_sqrt,
+ m_tan, m_tanh, m_tgamma, m_trunc, m_yz, m_y, m_yn,
+
+ c_sin, c_cos, c_tan, c_sinh, c_cosh, c_tanh, c_asin, c_acos, c_atan, c_asinh,
+ c_acosh, c_atanh, c_sqrt, c_abs, c_arg, c_conj, c_exp, c_log, c_proj, c_erf,
+ c_erfc, c_erfcx, c_erfi, c_imag, c_real, c_neg, c_pow, c_add, c_sub, c_mul,
+ c_div, c_voigt, c_voigt_hwhm, c_add, c_sub, c_imag, c_real, c_neg,
+
+ % sqrt, sind, cosd, % these are primitives
+
+ sqr, log, ln, exp, inv, sin, cos, tan, asin, acos, atan, invsin, invcos, invtan,
+ tand, asind, acosd, atand, tand, cotd
+;
+
diff --git a/metapost/context/base/mpxl/mp-mlib.mpxl b/metapost/context/base/mpxl/mp-mlib.mpxl
index 3c32256d3..dc5bad4d7 100644
--- a/metapost/context/base/mpxl/mp-mlib.mpxl
+++ b/metapost/context/base/mpxl/mp-mlib.mpxl
@@ -11,10 +11,9 @@
%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
%C details.
-if unknown mplib : endinput ; fi ;
-if known context_mlib : endinput ; fi ;
+if known context_mlib : endinput ; fi ;
-boolean context_mlib ; context_mlib := true ;
+boolean context_mlib ; context_mlib := true ; immutable context_mlib ;
% numeric LUATEXFUNCTIONALITY ; LUATEXFUNCTIONALITY := runscript("mp.print(LUATEXFUNCTIONALITY or (status and status.development_id) or 6346)") ;
@@ -29,6 +28,8 @@ vardef isobject expr p =
fi
enddef ;
+permanent isobject ;
+
%D Color and transparency
%D
%D Separable:
@@ -53,6 +54,11 @@ newinternal saturationtransparent ; saturationtransparent := 14 ;
newinternal colortransparent ; colortransparent := 15 ;
newinternal luminositytransparent ; luminositytransparent := 16 ;
+permanent normaltransparent, multiplytransparent, screentransparent, overlaytransparent,
+ softlighttransparent, hardlighttransparent, colordodgetransparent, colorburntransparent,
+ darkentransparent, lightentransparent, differencetransparent, exclusiontransparent,
+ huetransparent, saturationtransparent, colortransparent, luminositytransparent ;
+
vardef transparency_alternative_to_number(expr name) =
if string name :
if expandafter known scantokens(name & "transparent") :
@@ -153,10 +159,14 @@ def cmyk(expr c, m, y, k) =
(c,m,y,k)
enddef ;
+permanent spotcolor, multitonecolor, transparent, withtransparency, namedcolor, withopacity, cmyk ;
+
% Texts (todo: better strut ratio, now .7 hardcoded, should be passed)
newinternal textextoffset ; textextoffset := 0 ;
+permanent textextoffset ;
+
%%%%%%% mfun_tt_w[], mfun_tt_h[], mfun_tt_d[] ; % we can consider using colors (less hash space)
color mfun_tt_b ;
numeric mfun_tt_n ; mfun_tt_n := 0 ;
@@ -217,9 +227,13 @@ newinternal txtcatcoderegime ; txtcatcoderegime := runscript("return catcodes.nu
newinternal catcoderegime ; catcoderegime := ctxcatcoderegime ;
-newinternal mfid_sometextext ; mfid_sometextext := scriptindex "sometextext" ;
-newinternal mfid_madetextext ; mfid_madetextext := scriptindex "madetextext" ;
+immutable inicatcoderegime, texcatcoderegime, luacatcoderegime, notcatcoderegime,
+ vrbcatcoderegime, prtcatcoderegime, ctxcatcoderegime, txtcatcoderegime ;
+permanent catcoderegime ;
+
+newscriptindex mfid_sometextext ; mfid_sometextext := scriptindex "sometextext" ;
+newscriptindex mfid_madetextext ; mfid_madetextext := scriptindex "madetextext" ;
vardef rawtextext(expr s) =
if s = "" :
@@ -228,7 +242,7 @@ vardef rawtextext(expr s) =
mfun_tt_n := mfun_tt_n + 1 ;
mfun_tt_c := nullpicture ;
mfun_tt_o := nullpicture ;
- addto mfun_tt_o doublepath origin _op_ ; % save drawoptions
+ addto mfun_tt_o doublepath origin base_draw_options ;
mfun_tt_r := runscript mfid_sometextext mfun_tt_n s catcoderegime ;
addto mfun_tt_c doublepath unitsquare
xscaled wdpart mfun_tt_r
@@ -246,7 +260,7 @@ vardef rawmadetext =
mfun_tt_n := mfun_tt_n + 1 ;
mfun_tt_c := nullpicture ;
mfun_tt_o := nullpicture ;
- addto mfun_tt_o doublepath origin _op_ ; % save drawoptions
+ addto mfun_tt_o doublepath origin base_draw_options ;
mfun_tt_r := runscript mfid_madetextext mfun_tt_n ;
addto mfun_tt_c doublepath unitsquare
xscaled wdpart mfun_tt_r
@@ -303,6 +317,8 @@ vardef fontsize expr name =
fi
enddef ;
+permanent fontsize ;
+
pair mfun_laboff ; mfun_laboff := origin ;
pair mfun_laboff.lft ; mfun_laboff.lft := (-1,0) ;
pair mfun_laboff.rt ; mfun_laboff.rt := (1,0) ;
@@ -409,53 +425,32 @@ enddef ;
% we save the plain variant
-vardef plain_thelabel@#(expr p,z) =
- if string p :
- plain_thelabel@#(rawtextext("\definedfont[" & defaultfont & "]" & p) scaled defaultscale,z)
- else :
- p shifted (z + labeloffset*laboff@# - mfun_labshift@#(p))
- fi
-enddef;
-
-def plain_label = % takes two arguments, contrary to textext that takes one
- normaldraw plain_thelabel
-enddef ;
-
-let mfun_label = label ;
-let mfun_thelabel = thelabel ;
-
-def useplainlabels = % somehow let doesn't work for all code
- def label = plain_label enddef ;
- def thelabel = plain_thelabel enddef ;
-enddef ;
-
-def usemetafunlabels =
- let label = mfun_label ;
- let thelabel = mfun_thelabel ;
-enddef ;
-
-vardef dotlabel@#(expr s,z) text t_ =
- label@#(s,z) t_ ;
- interim linecap := rounded ;
- normaldraw z withpen pencircle scaled dotlabeldiam t_ ;
-enddef ;
-
-plain_compatibility_data := plain_compatibility_data & "save label, thelabel ;" & "useplainlabels ;" ;
-
-% vardef thetextext@#(expr p,z) =
-% % interim labeloffset := textextoffset ;
+% vardef plain_thelabel@#(expr p,z) =
% if string p :
-% thetextext@#(rawtextext(p),z)
-% elseif numeric p :
-% thetextext@#(rawtextext(decimal p),z)
+% plain_thelabel@#(rawtextext("\definedfont[" & defaultfont & "]" & p) scaled defaultscale,z)
% else :
-% p
-% if (mfun_labtype@# >= 10) :
-% shifted (0,ypart center p)
-% fi
-% shifted (z + textextoffset*mfun_laboff@# - mfun_labshift@#(p))
+% p shifted (z + labeloffset*laboff@# - mfun_labshift@#(p))
% fi
+% enddef;
+%
+% def plain_label = % takes two arguments, contrary to textext that takes one
+% normaldraw plain_thelabel
% enddef ;
+%
+% let mfun_label = label ;
+% let mfun_thelabel = thelabel ;
+%
+% def useplainlabels = % somehow let doesn't work for all code
+% def label = plain_label enddef ;
+% def thelabel = plain_thelabel enddef ;
+% enddef ;
+%
+% def usemetafunlabels =
+% let label = mfun_label ;
+% let thelabel = mfun_thelabel ;
+% enddef ;
+%
+% plain_compatibility_data := plain_compatibility_data & "save label, thelabel ;" & "useplainlabels ;" ;
newinternal anchortextexts ; anchortextexts := 0 ; % disabled by default
@@ -489,6 +484,8 @@ vardef onetimetextext@#(expr p) = % no draw here
thetextext@#(p,origin)
enddef ;
+permanent rawtextext, rawmadetext, validtexbox, rawtexbox, thetextext, textext, onetimetextext ;
+
% formatted text
pair mfun_tt_z ;
@@ -497,7 +494,7 @@ vardef rawfmttext(text t) =
mfun_tt_n := mfun_tt_n + 1 ;
mfun_tt_c := nullpicture ;
mfun_tt_o := nullpicture ;
- addto mfun_tt_o doublepath origin _op_ ; % save drawoptions
+ addto mfun_tt_o doublepath origin base_draw_options ;
mfun_tt_r := lua.mp.mf_formatted_text(mfun_tt_n,t) ;
addto mfun_tt_c doublepath unitsquare
xscaled wdpart mfun_tt_r
@@ -553,6 +550,8 @@ vardef texbox@#(expr category, name) = % no draw here
thetexbox@#(category,name,origin)
enddef ;
+permanent rawfmttext, thefmttext, fmttext, onetimefmttext, thetexbox, texbox ;
+
% vardef thelabel@#(expr p,z) =
% if string p :
% thelabel@#(rawtextext("\definedfont[" & defaultfont & "]" & p) scaled defaultscale,z)
@@ -609,6 +608,8 @@ primarydef s infont name = % nasty hack
fi
enddef ;
+permanent theoffset, thelabel, anchored ;
+
% Helper
string mfun_prescript_separator ; mfun_prescript_separator := char(13) ;
@@ -621,6 +622,8 @@ newinternal shadefactor ; shadefactor := 1 ; % currently obsolete
pair shadeoffset ; shadeoffset := origin ; % currently obsolete
boolean trace_shades ; trace_shades := false ; % still there
+permanent shadefactor, shadeoffset ;
+
% def withlinearshading (expr a, b) =
% withprescript "sh_type=linear"
% withprescript "sh_domain=0 1"
@@ -855,6 +858,7 @@ def shaded text s =
s
enddef ;
+
% For me.
primarydef p shownshadevector v =
@@ -891,6 +895,11 @@ primarydef p shownshadeorigin v =
)
enddef ;
+permanent withshademethod, withshaderadius, withshadeorigin, withshadevector, withshadedirection,
+ withshadetransform, withshadedomain, withshadefactor, withshadecenter, withshadefraction, withshadestep,
+ withshadecolors, shadedinto, withshade, shaded, shadedup, shadeddown, shadedleft, shadedright,
+ shownshadevector, shownshadedirection, shownshadecenter, shownshadeorigin ;
+
% Old macros:
def withcircularshade (expr a, b, ra, rb, ca, cb) =
@@ -917,6 +926,8 @@ def withlinearshade (expr a, b, ca, cb) =
withprescript "sh_center_b=" & ddecimal b % (b shifted shadeoffset)
enddef ;
+permanent withcircularshade, withlinearshade ;
+
% replaced (obsolete):
def set_linear_vector (suffix a,b)(expr p,n) =
@@ -1047,6 +1058,8 @@ def onlayer primary name =
withprescript "la_name=" & name
enddef ;
+permanent onlayer ;
+
% Figures
% def externalfigure primary filename =
@@ -1081,6 +1094,8 @@ def figure primary filename =
rawtextext("\externalfigure[" & filename & "]")
enddef ;
+permanent withmask, externalfigure, figure ;
+
% Positions
def register (expr tag, width, height, offset) =
@@ -1090,6 +1105,8 @@ def register (expr tag, width, height, offset) =
% ) ; % no transformations
enddef ;
+permanent register ;
+
% outlines (todo: pass around less arguments)
numeric currentoutlinetext ; currentoutlinetext := 0 ;
@@ -1213,14 +1230,14 @@ def mfun_do_outline_options_d = enddef ;
def mfun_do_outline_options_f = enddef ;
def mfun_do_outline_options_r = enddef ;
-def outlinetexttopath(text o, p, n) =
+def outlinetexttopath (text o, p, n) =
scantokens("numeric " & str n & ";") ;
scantokens("path " & str p & "[];") ;
n := 0 ;
for i within o : p[incr(n)] := pathpart i ; endfor ;
enddef ;
-def filloutlinetext(expr o) =
+def filloutlinetext (expr o) =
draw image (
save n, m ; numeric n, m ; n := m := 0 ;
for i within o :
@@ -1237,7 +1254,7 @@ def filloutlinetext(expr o) =
)
enddef ;
-def drawoutlinetext(expr o) =
+def drawoutlinetext (expr o) =
draw image (
% nicer for properties
for i within o :
@@ -1275,6 +1292,9 @@ vardef outlinetext@# (expr t) text rest =
) mfun_do_outline_options_r ; )
enddef ;
+
+permanent outlinetexttopath, filloutlinetext, drawoutlinetext, outlinetext ;
+
% A few helpers:
numeric mfun_c_b_llx, mfun_c_b_h, mfun_c_b_w, mfun_c_b_l ;
@@ -1302,6 +1322,8 @@ vardef rule(expr wd,ht,dp) =
image (fill (0,-dp)--(wd,-dp)--(wd,ht)--(0,ht)--cycle)
enddef ;
+permanent checkedbounds, checkbounds, strut, rule ;
+
% Housekeeping
extra_beginfig := extra_beginfig & "currentgraphictext := 0 ; " ;
@@ -1315,6 +1337,8 @@ vardef verbatim(expr s) =
ditto & "\detokenize{" & s & "}" & ditto
enddef ;
+permanent verbatim ;
+
% New
def bitmapimage(expr xresolution, yresolution, data) =
@@ -1326,12 +1350,14 @@ def bitmapimage(expr xresolution, yresolution, data) =
)
enddef ;
+permanent bitmapimage ;
+
% Experimental:
%
% property p ; p = properties(withcolor (1,1,0,0)) ;
% fill fullcircle scaled 20cm withproperties p ;
-let property = picture ;
+let property = picture ; permanent property ;
vardef properties(text t) =
image(draw unitcircle t)
@@ -1353,25 +1379,29 @@ def withproperties expr p =
withpostscript postscriptpart p
enddef ;
+permanent properties, withproperties ;
+
% Experimental:
primarydef t asgroup s = % s = isolated|knockout
begingroup
- save grouppicture, wrappedpicture, groupbounds ;
- picture grouppicture, wrappedpicture ; path groupbounds ;
- grouppicture := if picture t : t else : image(draw t) fi ;
- groupbounds := boundingbox grouppicture ;
- wrappedpicture:= nullpicture ;
- addto wrappedpicture contour groupbounds
+ save temp_p, temp_q, temp_r ;
+ picture temp_p, temp_q ; path temp_r ;
+ temp_p := if picture t : t else : image(draw t) fi ;
+ temp_r := boundingbox temp_p ;
+ temp_q:= nullpicture ;
+ addto temp_q contour temp_r
withprescript "gr_state=start"
withprescript "gr_type=" & s ;
- addto wrappedpicture also grouppicture ;
- addto wrappedpicture contour groupbounds
+ addto temp_q also temp_p ;
+ addto temp_q contour temp_r
withprescript "gr_state=stop" ;
- wrappedpicture
+ temp_q
endgroup
enddef ;
+permanent asgroup ;
+
% Also experimental ... needs to be made better ... so it can change!
string mfun_auto_align[] ;
@@ -1518,6 +1548,8 @@ enddef ;
string dq ; dq := char 92 & char 34 ;
string sq ; sq := char 92 & char 39 ;
+permanent dq, sq ;
+
vardef quote primary s = sq & tostring(s) & sq enddef;
vardef quotation primary s = dq & tostring(s) & dq enddef;
@@ -1533,6 +1565,8 @@ vardef mfun_tagged_string(expr value) =
fi
enddef ;
+permanent tostring, topair, quote, quotation ;
+
% A more flexible variant for passing data to context. We used to construct strings
% but running lua is fast enough so we can gain on string construction in metapost
% which is also not that efficient.
@@ -1635,6 +1669,8 @@ def stoppassingvariable =
runscript("metapost.popvariable()") ;
enddef ;
+permanent passvariable, passarrayvariable, startpassingvariable, stoppassingvariable ;
+
% moved here from mp-grap.mpiv
% vardef escaped_format(expr s) =
@@ -1698,6 +1734,8 @@ vardef varfmt(expr f, x) = "\MPformatted{" & escaped_format(f) & "}{" & mfun_t
vardef format@# (expr f, x) = textext@#(strfmt(f, x)) enddef ;
vardef formatted@#(expr f, x) = textext@#(varfmt(f, x)) enddef ;
+permanent format, formatted ;
+
% could be this (something to discuss with alan as it involves graph):
%
% vardef format (expr f,x) = lua.mp.graphformat(f,mfun_tagged_string(x) enddef ;
@@ -1718,18 +1756,15 @@ def nofill text t = fill t withpostscript "collect" enddef ;
def nodraw text t = draw t withpostscript "collect" enddef ;
def dodraw text t = draw t withpostscript "flush" enddef ;
def dofill text t = fill t withpostscript "flush" enddef ;
+def eoclip text t = clip t withpostscript "evenodd" enddef ;
+
+permanent fillup, eofillup, eofill, nofill, nodraw, dodraw, dofill, eoclip ;
% maybe (saves a bogus path but the problem is that it can influence the dimensions):
% def dodraw text t = draw center currentpicture withpostscript "flush" enddef ;
% def dofill text t = fill center currentpicture --cycle withpostscript "flush" enddef ;
-if contextlmtxmode :
- def eoclip text t = clip t withpostscript "evenodd" enddef ;
-else :
- def eoclip text t = clip t enddef ; % no postscripts yet
-fi ;
-
% def withrule expr r =
% if (t = "even-odd") or (t = "evenodd") : withpostscript "evenodd" fi
% enddef ;
@@ -1737,6 +1772,13 @@ fi ;
% A comment will end up on top of the graphic in the output. This can be handy for
% locating a graphic: comment("test graphic").
+% This can be a prescript to currentpicture ... we can actually make
+%
+% setprescript str to picture/path ;
+% setpostscript str to picture/path ;
+
+def special text t = enddef ;
+
def comment expr str =
special "metapost.comment[[" & str & "]]" ;
enddef ;
@@ -1745,8 +1787,12 @@ vardef report(text t) =
lua.mp.report(t)
enddef ;
+permanent comment, report ;
+
% This overloads a dummy:
+% todo: use mfid_* cum suis
+
vardef uniquelist(suffix list) =
% this can be optimized by passing all values at once and returning
% a result but for now this is ok .. we need an undef foo
@@ -1773,3 +1819,5 @@ vardef uniquelist(suffix list) =
endfor ;
lua.mp.disposehash(h) ;
enddef ;
+
+permanent uniquelist ;
diff --git a/metapost/context/base/mpxl/mp-node.mpxl b/metapost/context/base/mpxl/mp-node.mpxl
new file mode 100644
index 000000000..ce3f888b5
--- /dev/null
+++ b/metapost/context/base/mpxl/mp-node.mpxl
@@ -0,0 +1,275 @@
+%D \module
+%D [ file=mp-node.mpiv,
+%D version=1998.02.15,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=Node Based Graphics,
+%D author=Alan Braslau,
+%D date=\currentdate,
+%D copyright={Alan Braslau & \CONTEXT\ Development Team}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+%D The crossing macros were written as part of this module but as they
+%D can be of use elsewhere they are defined in mp-tool.
+
+if known context_node : endinput ; fi ;
+
+boolean context_node ; context_node := true ; immutable context_node ;
+
+% Build a path from the node positions.
+% Must be integer and continuous in index starting at 0.
+
+vardef makenodepath(suffix p) =
+ if unknown p :
+ if not path p :
+ d := dimension p ;
+ if d>0 :
+ scantokens("path " & prefix p & for i=1 upto d : "[]" & endfor " ;") ;
+ else :
+ path p ;
+ fi
+ fi
+ save i ; i = -1 ;
+ p = forever : exitif unknown p.pos[incr i] ;
+ p.pos[i] --
+ endfor cycle ;
+ fi
+enddef ;
+
+% can take a list:
+
+def clearpath text t =
+ save t ; path t ;
+enddef ;
+
+def clearnodepath = clearpath nodepath enddef ;
+
+clearnodepath ;
+
+% the trailing "," below handles when number of t<3
+
+vardef makenode@#(text t) =
+ for a = t :
+ if (path a) or (unknown a) :
+ mfun_makenode@#(t,)
+ elseif (string a) and (length(a) = 0) :
+ mfun_makenode@#(t,)
+ else :
+ mfun_makenode@#(nodepath, t,)
+ fi
+ exitif true ;
+ endfor
+enddef ;
+
+vardef node@#(text t) =
+ for a = t :
+ if (path a) or (unknown a) :
+ mfun_node@#(t,)
+ elseif (string a) and (length(a) = 0) :
+ mfun_node@#(t,)
+ else :
+ mfun_node@#(nodepath, t,)
+ fi
+ exitif true ;
+ endfor
+enddef ;
+
+vardef nodeboundingpoint@#(text t) =
+ for a = t :
+ if (path a) or (unknown a) :
+ mfun_nodeboundingpoint@#(t)
+ elseif (string a) and (length(a) = 0) :
+ mfun_nodeboundingpoint@#(t)
+ else :
+ mfun_nodeboundingpoint@#(nodepath,a)
+ fi
+ exitif true ;
+ endfor
+enddef ;
+
+vardef fromto@#(expr d, f)(text t) =
+ fromtopaths@#(d,nodepath,f,nodepath,t)
+enddef ;
+
+% returns a pair suffix if the path is unknown
+
+vardef mfun_makenode@#(suffix p)(expr i)(text t) =
+ save d, b ; string b ;
+ d = dimension p ;
+ if d > 0 :
+ b := prefix p ;
+ if not picture p.pic[i] : scantokens("picture " & b &
+ for j=1 upto d : "[]" & endfor
+ "pic[] ;") ; fi
+ if not pair p.pos[i] : scantokens("pair " & b &
+ for j=1 upto d : "[]" & endfor
+ "pos[] ;") ; fi
+ else :
+ if not picture p.pic[i] : picture p.pic[] ; fi
+ if not pair p.pos[i] : pair p.pos[] ; fi
+ fi
+ for a = t :
+ if known p.pic[i] :
+ addto p.pic[i] also
+ else :
+ p.pic[i] =
+ fi
+ if picture a : a
+ elseif string a : if (length(a) > 0) : textext@#(a) else : nullpicture fi
+ elseif numeric a : textext@#(decimal a)
+ elseif ((boolean a) and a) : image(draw origin withpen currentpen scaled 4)
+ else : nullpicture
+ fi ;
+ endfor
+ p.pos[i] if known p : := point i of p ; fi
+enddef ;
+
+% returns a picture
+
+vardef mfun_node@#(suffix p)(expr i)(text t) =
+ if pair mfun_makenode@#(p,i,t) :
+ % nop: enclose in "if ... fi" to gobble the function return.
+ fi
+ if (unknown p) and (known p.pos[i]) :
+ makenodepath(p) ;
+ fi
+ if known p.pic[i] :
+ p.pic[i] if known p : shifted point i of p fi
+ else :
+ nullpicture
+ fi
+enddef ;
+
+newinternal node_loopback_yscale ; node_loopback_yscale := 1 ;
+
+% returns a path
+
+vardef fromtopaths@#(expr d)(suffix p)(expr f)(suffix q)(text s) =
+ save r, t, l ;
+ path r[] ; picture l ;
+ for a = s :
+ if unknown t :
+ t = a ;
+ if (unknown p) and (known p.pos[f]) :
+ makenodepath(p) ;
+ fi
+ if (unknown q) and (known q.pos[t]) :
+ makenodepath(q) ;
+ fi
+ r0 = if ((not numeric d) and
+ (point f of p = point f of q) and
+ (point t of p = point t of q)) :
+ subpath (f,t) of p
+ else :
+ point f of p -- point t of q
+ fi ;
+ save deviation ;
+ deviation := if numeric d: d else: 0 fi ;
+ r1 = if (point 0 of r0) = (point length r0 of r0) :
+ (fullcircle yscaled node_loopback_yscale rotated 180
+ if mfun_laboff@# <> origin :
+ rotated angle mfun_laboff@#
+ shifted .5mfun_laboff@#
+ fi)
+ scaled deviation
+ shifted point 0 of r0
+ elseif deviation=0 :
+ r0
+ else :
+ point 0 of r0 ..
+ unitvector direction .5length r0 of r0 rotated 90
+ scaled deviation * arclength r0
+ shifted point .5length r0 of r0 ..
+ point length r0 of r0
+ fi ;
+ else :
+ if known l :
+ addto l also
+ else :
+ l :=
+ fi
+ if picture a : a
+ elseif string a : if (length(a) > 0) : textext@#(a) else : nullpicture fi
+ elseif numeric a : textext@#(decimal a)
+ elseif ((boolean a) and a) : image(draw origin withpen currentpen scaled 4)
+ else : nullpicture
+ fi ;
+ fi
+ endfor
+ r2 = r1
+ if known p.pic[f if cycle p: mod length p fi] :
+ cutbefore boundingbox (p.pic[f if cycle p: mod length p fi] shifted point f of p)
+ fi
+ if known q.pic[t if cycle q: mod length q fi] :
+ cutafter boundingbox (q.pic[t if cycle q: mod length q fi] shifted point t of q)
+ fi
+ ;
+ if known l :
+ l := l shifted point .5length r2 of r2 ;
+ draw l ;
+ (r2 if str @# = "" : crossingunder l fi)
+ else :
+ r2
+ fi
+enddef ;
+
+% returns pair: bounding point of the node picture
+
+vardef mfun_nodeboundingpoint@#(suffix p)(expr i) =
+ if known p.pic[i] :
+ boundingpoint@#(p.pic[i])
+ else :
+ origin
+ fi
+enddef ;
+
+% returns pair: scaled laboff direction
+
+vardef relative@#(expr s) =
+ (mfun_laboff@# scaled s)
+enddef ;
+
+% returns pair: vector between nodes (+ optional scale)
+
+vardef betweennodes@#(suffix p)(expr f)(suffix q)(text s) =
+ save t ;
+ for a = s :
+ if unknown t :
+ t = a ;
+ mfun_nodeboundingpoint@#(q,t) + mfun_nodeboundingpoint@#(p,f)
+ else :
+ + relative@#(a)
+ fi
+ endfor
+enddef ;
+
+% helpers that save passing tokens
+
+def mfun_node_init(expr dx, dy, da) =
+ save nodelattice ; pair nodelattice[] ;
+ nodelattice0 = (dx,0) ;
+ nodelattice1 = dy * dir(da) ;
+ clearnodepath ;
+ save nodecount ; nodecount = -1;
+enddef ;
+
+def mfun_node_make(expr x, y, s) =
+ nodecount := nodecount + 1 ;
+ makenode(nodecount,s) = x * nodelattice0 + y * nodelattice1 ;
+enddef ;
+
+def mfun_node_flush =
+ for i=0 upto nodecount:
+ draw node(i) ;
+ endfor
+enddef ;
+
+vardef mfun_nodes_fromto@#(expr d, f)(text t) =
+ fromtopaths@#(d,nodepath,f,nodepath,t)
+enddef ;
+
+permanent makenodepath, clearpath, clearnodepath, makenode, node, nodeboundingpoint, fromto, fromtopaths, relative, betweennodes ;
+permanent node_loopback_yscale ;
+
diff --git a/metapost/context/base/mpxl/mp-page.mpxl b/metapost/context/base/mpxl/mp-page.mpxl
index 8a4b735e0..bb9d8e893 100644
--- a/metapost/context/base/mpxl/mp-page.mpxl
+++ b/metapost/context/base/mpxl/mp-page.mpxl
@@ -16,11 +16,13 @@
if known context_page : endinput ; fi ;
-boolean context_page ; context_page := true ;
+boolean context_page ; context_page := true ; immutable context_page ;
def LoadPageState = enddef ; % just in case some old style uses it
-% Next we implement the the page area model. First some constants.
+% Next we implement the the page area model. First some constants. We use a
+% matrix approach as we do at the TeX end but we could have gone for a period
+% separated variant. Too late.
LeftEdge := -4 ; Top := -40 ;
LeftEdgeSeparator := -3 ; TopSeparator := -30 ;
@@ -35,101 +37,132 @@ RightEdge := +4 ; Bottom := +40 ;
numeric HorPos ; HorPos := 0 ;
numeric VerPos ; VerPos := 0 ;
+immutable % permanent
+ Text, HorPos, VerPos,
+ LeftEdge, LeftEdgeSeparator, LeftMargin, LeftMarginSeparator,
+ RightMarginSeparator, RightMargin, RightEdgeSeparator, RightEdge,
+ Top, TopSeparator, Header, HeaderSeparator,
+ FooterSeparator, Footer, BottomSeparator, Bottom ;
+
% Because metapost > 1.50 has dynamic memory management and is less efficient than
% before we now delay calculations ... (on a document with 150 pages the time spent
% in mp was close to 5 seconds which was only due to initialising the page related
% areas, something that was hardly noticeable before. At least now we're back to
% half a second for such a case.
-def SetPageVsize =
- numeric Vsize[] ;
- Vsize[Top] = TopHeight ;
- Vsize[TopSeparator] = TopDistance ;
- Vsize[Header] = HeaderHeight ;
- Vsize[HeaderSeparator] = HeaderDistance ;
- Vsize[Text] = TextHeight ;
- Vsize[FooterSeparator] = FooterDistance ;
- Vsize[Footer] = FooterHeight ;
- Vsize[BottomSeparator] = BottomDistance ;
- Vsize[Bottom] = BottomHeight ;
-enddef ;
-
-def SetPageHsize =
- numeric Hsize[] ;
- Hsize[LeftEdge] = LeftEdgeWidth ;
- Hsize[LeftEdgeSeparator] = LeftEdgeDistance ;
- Hsize[LeftMargin] = LeftMarginWidth ;
- Hsize[LeftMarginSeparator] = LeftMarginDistance ;
- Hsize[Text] = MakeupWidth ;
- Hsize[RightMarginSeparator] = RightMarginDistance ;
- Hsize[RightMargin] = RightMarginWidth ;
- Hsize[RightEdgeSeparator] = RightEdgeDistance ;
- Hsize[RightEdge] = RightEdgeWidth ;
-enddef ;
-
-def SetPageVstep =
- numeric Vstep[] ;
- Vstep[Top] = Vstep[TopSeparator] +Vsize[TopSeparator] ;
- Vstep[TopSeparator] = PaperHeight-TopSpace ;
- Vstep[Header] = Vstep[TopSeparator] -Vsize[Header] ;
- Vstep[HeaderSeparator] = Vstep[Header] -Vsize[HeaderSeparator] ;
- Vstep[Text] = Vstep[HeaderSeparator]-Vsize[Text] ;
- Vstep[FooterSeparator] = Vstep[Text] -Vsize[FooterSeparator] ;
- Vstep[Footer] = Vstep[FooterSeparator]-Vsize[Footer] ;
- Vstep[BottomSeparator] = Vstep[Footer] -Vsize[BottomSeparator] ;
- Vstep[Bottom] = Vstep[BottomSeparator]-Vsize[Bottom] ;
-enddef ;
-
-def SetPageHstep =
- numeric Hstep[] ;
- Hstep[LeftEdge] = Hstep[LeftEdgeSeparator] -Hsize[LeftEdge] ;
- Hstep[LeftEdgeSeparator] = Hstep[LeftMargin] -Hsize[LeftEdgeSeparator] ;
- Hstep[LeftMargin] = Hstep[LeftMarginSeparator] -Hsize[LeftMargin] ;
- Hstep[LeftMarginSeparator] = Hstep[Text] -Hsize[LeftMarginSeparator] ;
- Hstep[Text] = BackSpace ;
- Hstep[RightMarginSeparator] = Hstep[Text] +Hsize[Text] ;
- Hstep[RightMargin] = Hstep[RightMarginSeparator]+Hsize[RightMarginSeparator] ;
- Hstep[RightEdgeSeparator] = Hstep[RightMargin] +Hsize[RightMargin] ;
- Hstep[RightEdge] = Hstep[RightEdgeSeparator] +Hsize[RightEdgeSeparator] ;
-enddef ;
-
-def SetPageArea =
- path Area[][] ;
+% We could go for just setting them (:=):
+
+path mfun_page_area[][] ;
+pair mfun_page_location[][] ;
+path mfun_page_field[][] ;
+numeric mfun_page_vsize[] ;
+numeric mfun_page_hsize[] ;
+numeric mfun_page_vstep[] ;
+numeric mfun_page_hstep[] ;
+
+newinternal mfun_page_done ; mfun_page_done := 0 ;
+
+def mfun_page_check_vsize =
+ mfun_page_vsize[Top] := TopHeight ;
+ mfun_page_vsize[TopSeparator] := TopDistance ;
+ mfun_page_vsize[Header] := HeaderHeight ;
+ mfun_page_vsize[HeaderSeparator] := HeaderDistance ;
+ mfun_page_vsize[Text] := TextHeight ;
+ mfun_page_vsize[FooterSeparator] := FooterDistance ;
+ mfun_page_vsize[Footer] := FooterHeight ;
+ mfun_page_vsize[BottomSeparator] := BottomDistance ;
+ mfun_page_vsize[Bottom] := BottomHeight ;
+enddef ;
+
+def mfun_page_check_hsize =
+ mfun_page_hsize[LeftEdge] := LeftEdgeWidth ;
+ mfun_page_hsize[LeftEdgeSeparator] := LeftEdgeDistance ;
+ mfun_page_hsize[LeftMargin] := LeftMarginWidth ;
+ mfun_page_hsize[LeftMarginSeparator] := LeftMarginDistance ;
+ mfun_page_hsize[Text] := MakeupWidth ;
+ mfun_page_hsize[RightMarginSeparator] := RightMarginDistance ;
+ mfun_page_hsize[RightMargin] := RightMarginWidth ;
+ mfun_page_hsize[RightEdgeSeparator] := RightEdgeDistance ;
+ mfun_page_hsize[RightEdge] := RightEdgeWidth ;
+enddef ;
+
+def mfun_page_check_vstep =
+ mfun_page_vstep[TopSeparator] := PaperHeight-TopSpace ;
+ mfun_page_vstep[Top] := mfun_page_vstep[TopSeparator] +mfun_page_vsize[TopSeparator] ;
+ mfun_page_vstep[Header] := mfun_page_vstep[TopSeparator] -mfun_page_vsize[Header] ;
+ mfun_page_vstep[HeaderSeparator] := mfun_page_vstep[Header] -mfun_page_vsize[HeaderSeparator] ;
+ mfun_page_vstep[Text] := mfun_page_vstep[HeaderSeparator]-mfun_page_vsize[Text] ;
+ mfun_page_vstep[FooterSeparator] := mfun_page_vstep[Text] -mfun_page_vsize[FooterSeparator] ;
+ mfun_page_vstep[Footer] := mfun_page_vstep[FooterSeparator]-mfun_page_vsize[Footer] ;
+ mfun_page_vstep[BottomSeparator] := mfun_page_vstep[Footer] -mfun_page_vsize[BottomSeparator] ;
+ mfun_page_vstep[Bottom] := mfun_page_vstep[BottomSeparator]-mfun_page_vsize[Bottom] ;
+enddef ;
+
+def mfun_page_check_hstep =
+ mfun_page_hstep[Text] := BackSpace ;
+ mfun_page_hstep[LeftMarginSeparator] := mfun_page_hstep[Text] -mfun_page_hsize[LeftMarginSeparator] ;
+ mfun_page_hstep[RightMarginSeparator] := mfun_page_hstep[Text] +mfun_page_hsize[Text] ;
+ mfun_page_hstep[LeftMargin] := mfun_page_hstep[LeftMarginSeparator] -mfun_page_hsize[LeftMargin] ;
+ mfun_page_hstep[RightMargin] := mfun_page_hstep[RightMarginSeparator]+mfun_page_hsize[RightMarginSeparator] ;
+ mfun_page_hstep[LeftEdgeSeparator] := mfun_page_hstep[LeftMargin] -mfun_page_hsize[LeftEdgeSeparator] ;
+ mfun_page_hstep[LeftEdge] := mfun_page_hstep[LeftEdgeSeparator] -mfun_page_hsize[LeftEdge] ;
+ mfun_page_hstep[RightEdgeSeparator] := mfun_page_hstep[RightMargin] +mfun_page_hsize[RightMargin] ;
+ mfun_page_hstep[RightEdge] := mfun_page_hstep[RightEdgeSeparator] +mfun_page_hsize[RightEdgeSeparator] ;
+enddef ;
+
+def mfun_check_page_dimensions =
+ if mfun_page_done <> RealPageNumber :
+ if LayoutHasChanged :
+ mfun_page_check_vsize ;
+ mfun_page_check_hsize ;
+ mfun_page_check_vstep ;
+ mfun_page_check_hstep ;
+ fi ;
+ mfun_page_done := RealPageNumber ;
+ fi ;
+enddef;
+
+
+def mfun_check_page_area =
+ mfun_check_page_dimensions ;
for VerPos=Top step 10 until Bottom:
for HorPos=LeftEdge step 1 until RightEdge:
- Area[HorPos][VerPos] := unitsquare xscaled Hsize[HorPos] yscaled Vsize[VerPos] ;
- Area[VerPos][HorPos] := Area[HorPos][VerPos] ;
+ mfun_page_area[HorPos][VerPos] := unitsquare xscaled mfun_page_hsize[HorPos] yscaled mfun_page_vsize[VerPos] ;
+ mfun_page_area[VerPos][HorPos] := mfun_page_area[HorPos][VerPos] ;
endfor ;
endfor ;
enddef ;
-def SetPageLocation =
- pair Location[][] ;
+def mfun_check_page_location =
+ mfun_check_page_dimensions ;
for VerPos=Top step 10 until Bottom:
for HorPos=LeftEdge step 1 until RightEdge:
- Location[HorPos][VerPos] := (Hstep[HorPos],Vstep[VerPos]) ;
- Location[VerPos][HorPos] := Location[HorPos][VerPos] ;
+ mfun_page_location[HorPos][VerPos] := (mfun_page_hstep[HorPos],mfun_page_vstep[VerPos]) ;
+ mfun_page_location[VerPos][HorPos] := mfun_page_location[HorPos][VerPos] ;
endfor ;
endfor ;
enddef ;
-def SetPageField =
- path Field[][] ;
+def mfun_check_page_field =
+ mfun_check_page_dimensions ;
for VerPos=Top step 10 until Bottom:
for HorPos=LeftEdge step 1 until RightEdge:
- Field[HorPos][VerPos] := unitsquare xscaled Hsize[HorPos] yscaled Vsize[VerPos] shifted (Hstep[HorPos],Vstep[VerPos]) ;
- Field[VerPos][HorPos] := Field[HorPos][VerPos] ;
+ mfun_page_field[HorPos][VerPos] := unitsquare xscaled mfun_page_hsize[HorPos] yscaled mfun_page_vsize[VerPos] shifted (mfun_page_hstep[HorPos],mfun_page_vstep[VerPos]) ;
+ mfun_page_field[VerPos][HorPos] := mfun_page_field[HorPos][VerPos] ;
endfor ;
endfor ;
enddef ;
-def Area = hide(SetPageArea ;) Area enddef ;
-def Location = hide(SetPageLocation ;) Location enddef ;
-def Field = hide(SetPageField ;) Field enddef ;
-def Vsize = hide(SetPageVsize ;) Vsize enddef ;
-def Hsize = hide(SetPageHsize ;) Hsize enddef ;
-def Vstep = hide(SetPageVstep ;) Vstep enddef ;
-def Hstep = hide(SetPageHstep ;) Hstep enddef ;
+def Area = hide(mfun_check_page_area ;) mfun_page_area enddef ;
+def Location = hide(mfun_check_page_location ;) mfun_page_location enddef ;
+def Field = hide(mfun_check_page_field ;) mfun_page_field enddef ;
+def Vsize = hide(mfun_check_page_dimensions ;) mfun_page_vsize enddef ;
+def Hsize = hide(mfun_check_page_dimensions ;) mfun_page_hsize enddef ;
+def Vstep = hide(mfun_check_page_dimensions ;) mfun_page_vstep enddef ;
+def Hstep = hide(mfun_check_page_dimensions ;) mfun_page_hstep enddef ;
+
+immutable % permanent
+ Area, Location, Field, Vsize, Hsize, Vstep, Hstep ;
vardef FrontPageWidth = PaperWidth enddef ;
vardef BackPageWidth = PaperWidth enddef ;
@@ -140,17 +173,19 @@ vardef FrontPageHeight = PaperHeight enddef ;
vardef BackPageHeight = PaperHeight enddef ;
vardef SpineHeight = PaperHeight enddef ;
-def SetPagePage = path Page ; Page := unitsquare xscaled PaperWidth yscaled PaperHeight ; enddef ;
-def SetPageCoverPage = path CoverPage ; CoverPage := unitsquare xscaled CoverWidth yscaled CoverHeight ; enddef ;
-def SetPageSpine = path Spine ; Spine := unitsquare xscaled SpineWidth yscaled CoverHeight shifted (BackPageWidth,0) ; enddef ;
-def SetPageBackPage = path BackPage ; BackPage := unitsquare xscaled BackPageWidth yscaled CoverHeight ; enddef ;
-def SetPageFrontPage = path FrontPage ; FrontPage := unitsquare xscaled FrontPageWidth yscaled CoverHeight shifted (BackPageWidth+SpineWidth,0) ; enddef ;
+path mfun_page_page, mfun_page_cover, mfun_page_spine, mfun_page_back, mfun_page_front ;
-def Page = hide(SetPagePage ;) Page enddef ;
-def CoverPage = hide(SetPageCoverPage;) CoverPage enddef ;
-def Spine = hide(SetPageSpine ;) Spine enddef ;
-def BackPage = hide(SetPageBackPage ;) BackPage enddef ;
-def FrontPage = hide(SetPageFrontPage;) FrontPage enddef ;
+def mfun_check_page = mfun_page_page := unitsquare xscaled PaperWidth yscaled PaperHeight ; enddef ;
+def mfun_check_cover = mfun_page_cover := unitsquare xscaled CoverWidth yscaled CoverHeight ; enddef ;
+def mfun_check_spine = mfun_page_spine := unitsquare xscaled SpineWidth yscaled CoverHeight shifted (BackPageWidth,0) ; enddef ;
+def mfun_check_back = mfun_page_back := unitsquare xscaled BackPageWidth yscaled CoverHeight ; enddef ;
+def mfun_check_front = mfun_page_front := unitsquare xscaled FrontPageWidth yscaled CoverHeight shifted (BackPageWidth+SpineWidth,0) ; enddef ;
+
+def Page = hide(mfun_check_page ;) mfun_page_page enddef ;
+def CoverPage = hide(mfun_check_cover ;) mfun_page_cover enddef ;
+def Spine = hide(mfun_check_spine ;) mfun_page_spine enddef ;
+def BackPage = hide(mfun_check_back ;) mfun_page_back enddef ;
+def FrontPage = hide(mfun_check_front ;) mfun_page_front enddef ;
% pages
@@ -176,12 +211,20 @@ def StopCover =
endgroup ;
enddef ;
+immutable % permanent
+ FrontPageWidth, BackPageWidth, CoverWidth, FrontPageHeight, BackPageHeight, CoverHeight,
+ SpineHeight, Page, CoverPage, Spine, BackPage, FrontPage,
+ StartPage, StopPage, StartCover, StopCover ;
+
% overlays:
def OverlayBox =
(unitsquare xyscaled (OverlayWidth,OverlayHeight))
enddef ;
+immutable % permanent
+ OverlayBox ;
+
% handy
def innerenlarged =
@@ -192,6 +235,9 @@ def outerenlarged =
if OnRightPage : rightenlarged else : leftenlarged fi
enddef ;
+permanent
+ innerenlarged, outerenlarged ;
+
% obsolete
% def llEnlarged (expr p,d) = (llcorner p shifted (-d,-d)) enddef ;
@@ -221,7 +267,7 @@ numeric RuleV ; RuleV := 0 ;
numeric RuleThickness ; RuleThickness := 0 ;
numeric RuleFactor ; RuleFactor := 0 ;
numeric RuleOffset ; RuleOffset := 0 ;
- def RuleColor = (.5white) enddef ;
+ def RuleColor = (.5white) enddef ; % yet undecided, might become a string
def FakeWord(expr RuleWidth, RuleHeight, RuleDepth, RuleThickness) (text RuleColor) =
fill unitsquare
@@ -241,3 +287,10 @@ def FakeRule(expr RuleWidth, RuleHeight, RuleDepth, RuleThickness) (text RuleCol
yscaled RuleHeight
withcolor RuleColor ;
enddef ;
+
+mutable
+ RuleDirection, RuleOption, RuleWidth, RuleHeight, RuleDepth, RuleH, RuleV, RuleThickness,
+ RuleFactor, RuleOffset, RuleColor;
+
+permanent
+ FakeWord, FakeRule ;
diff --git a/metapost/context/base/mpxl/mp-shap.mpxl b/metapost/context/base/mpxl/mp-shap.mpxl
new file mode 100644
index 000000000..c4e2a7bf0
--- /dev/null
+++ b/metapost/context/base/mpxl/mp-shap.mpxl
@@ -0,0 +1,228 @@
+%D \module
+%D [ file=mp-shap.mpiv,
+%D version=2000.05.31,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=shapes,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+if known context_shap : endinput ; fi ;
+
+boolean context_shap ; context_shap := true ; immutable context_shap ;
+
+path predefined_shapes[] ;
+
+def start_predefined_shape_definition =
+
+ begingroup ;
+
+ save xradius, yradius, xxradius, yyradius ;
+ save ll, lr, ur, ul, llx, lly, lrx, lry, urx, ury, ulx, uly, llxx, llyy, lrxx, lryy, urxx, uryy, ulxx, ulyy, lc, rc, tc, bc ;
+
+ numeric xradius, yradius, xxradius, yyradius ;
+ pair ll, lr, ur, ul, llx, lly, lrx, lry, urx, ury, ulx, uly, llxx, llyy, lrxx, lryy, urxx, uryy, ulxx, ulyy, lc, rc, tc, bc ;
+
+ xradius := .15 ;
+ yradius := .15 ;
+ xxradius := .10 ;
+ yyradius := .10 ;
+
+ ll := llcorner (unitsquare shifted (-.5,-.5)) ;
+ lr := lrcorner (unitsquare shifted (-.5,-.5)) ;
+ ur := urcorner (unitsquare shifted (-.5,-.5)) ;
+ ul := ulcorner (unitsquare shifted (-.5,-.5)) ;
+
+ llx := ll shifted (xradius,0) ;
+ lly := ll shifted (0,yradius) ;
+
+ lrx := lr shifted (-xradius,0) ;
+ lry := lr shifted (0,yradius) ;
+
+ urx := ur shifted (-xradius,0) ;
+ ury := ur shifted (0,-yradius) ;
+
+ ulx := ul shifted (xradius,0) ;
+ uly := ul shifted (0,-yradius) ;
+
+ llxx := ll shifted (xxradius,0) ;
+ llyy := ll shifted (0,yyradius) ;
+
+ lrxx := lr shifted (-xxradius,0) ;
+ lryy := lr shifted (0,yyradius) ;
+
+ urxx := ur shifted (-xxradius,0) ;
+ uryy := ur shifted (0,-yyradius) ;
+
+ ulxx := ul shifted (xxradius,0) ;
+ ulyy := ul shifted (0,-yyradius) ;
+
+ lc := ll shifted (0,.5) ;
+ rc := lr shifted (0,.5) ;
+ tc := ul shifted (.5,0) ;
+ bc := ll shifted (.5,0) ;
+
+enddef ;
+
+def stop_predefined_shape_definition =
+
+ endgroup ;
+
+enddef ;
+
+% this can be delayed
+
+start_predefined_shape_definition ;
+
+ predefined_shapes[ 0] := (origin--cycle) ;
+ predefined_shapes[ 5] := (llx--lrx{right}...rc...{left}urx--ulx{left}...lc...{right}cycle) ;
+ predefined_shapes[ 6] := (ll--lrx{right}...rc...{left}urx--ul--cycle) ;
+ predefined_shapes[ 7] := (ll--lrx{right}...rc...{left}urx--ul--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[ 8] := (lr--ury{up}...tc...{down}uly--ll--cycle) ;
+ predefined_shapes[ 9] := (lr--ury{up}...tc...{down}uly--ll--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[10] := (ll--lr--ur--ul--ll--ur--ul--ll--cycle) ;
+ predefined_shapes[11] := (ll--lr--ur--ul--ll--lr--ul--ll--cycle) ;
+ predefined_shapes[12] := (ll--lrx--ur--ulx--cycle) ;
+ predefined_shapes[13] := (llx--lr--urx--ul--cycle) ;
+ predefined_shapes[14] := (lly--bc--lry--ury--tc--uly--cycle) ;
+ predefined_shapes[15] := (llx--lrx--rc--urx--ulx--lc--cycle) ;
+ predefined_shapes[16] := (ll--lrx--rc--urx--ul--cycle) ;
+ predefined_shapes[17] := (ll--lrx--rc--urx--ul--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[18] := (lr--ury--tc--uly--ll--cycle) ;
+ predefined_shapes[19] := (lr--ury--tc--uly--ll--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[20] := (ll--lr--ur--ul--ll--llxx--ulxx--ul--ll--lr--ur--urxx--lrxx--cycle) ;
+ predefined_shapes[21] := (ul--ll--lr--ur--ul--ulyy--uryy--ur--ul--ll--lr--lryy--llyy--cycle) ;
+ predefined_shapes[22] := (ll--lrx--lry--ur--ulx--uly--cycle) ;
+ predefined_shapes[23] := (llx--lr--ury--urx--ul--lly--cycle) ;
+ predefined_shapes[24] := (ll--lr--ur--ul--cycle) ;
+ predefined_shapes[25] := (llx--lrx--lry--ury--urx--ulx--uly--lly--cycle) ;
+ predefined_shapes[26] := (ll--lrx--lry--ur--ul--cycle) ;
+ predefined_shapes[27] := (ll--lr--ury--urx--ul--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[28] := (ll--lr--ury--urx--ul--cycle) ;
+ predefined_shapes[29] := (ll--lrx--lry--ur--ul--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[30] := (bc{right}...{up}rc...tc{left}...{down}lc...{right}bc & bc--tc & tc{left}..{down}lc & lc--rc & rc{up}..tc{left}...{down}lc...{right}bc & cycle) rotated 45;
+ predefined_shapes[31] := (bc{right}...{up}rc...tc{left}...{down}lc...{right}bc & bc--tc & tc{left}..{down}lc & lc--rc & rc{up}..tc{left}...{down}lc...{right}bc & cycle) ;
+ predefined_shapes[32] := (ll{right}...{right}lry--ur--ul--ll--cycle) ;
+ predefined_shapes[33] := (ll{right}...{right}lry--ur--ul--ll--cycle--ul--ulx--ulx shifted(0,yyradius)--ur shifted(yyradius,yyradius)--lry shifted(yyradius,yyradius)--lry shifted(0,yyradius)--ur--ul--cycle ) ;
+ predefined_shapes[34] := (uly..tc..ury & ury..tc shifted (0,-2yradius)..uly & uly--lly & lly..bc..lry & lry--ury & ury..tc shifted (0,-2yradius)..uly & cycle ) ;
+ predefined_shapes[35] := (bc{right}...rc{up}...tc{left}...lc{down}...cycle) ;
+ predefined_shapes[36] := (ul--tc{right}..rc{down}..{left}bc--ll & ll..(xpart llx, ypart lc)..ul & cycle) ;
+ predefined_shapes[37] := (ul--tc{right}..rc{down}..{left}bc--ll & ll..(xpart llx, ypart lc)..ul & cycle) rotatedaround(origin,180) ;
+ predefined_shapes[38] := (ll--lc{up}..tc{right}..{down}rc--lr & lr..(xpart bc, ypart lly)..ll & cycle) ;
+ predefined_shapes[39] := (ll--lc{up}..tc{right}..{down}rc--lr & lr..(xpart bc, ypart lly)..ll & cycle) rotatedaround(origin,180) ;
+ predefined_shapes[40] := (ll--lr--ur--ul--ll--ur--ul--ll--lr--ul--ll--cycle) ;
+ predefined_shapes[41] := (ll--lr--ur--ul--ll--lr--rc--lc--ll--bc--tc--ul--ll & cycle) ;
+ predefined_shapes[42] := (ll--lr--origin shifted (+epsilon,0)--ur--ul--origin shifted (-epsilon,0)--cycle) ;
+ predefined_shapes[43] := (ll--ul--origin shifted (0,+epsilon)--ur--lr--origin shifted (0,-epsilon)--cycle) ;
+ predefined_shapes[45] := (bc--rc--tc--lc--cycle) ;
+ predefined_shapes[46] := (ll--ul--rc--cycle) ;
+ predefined_shapes[47] := (ll--ul--rc--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[48] := (ul--ur--bc--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[49] := (ul--ur--bc--cycle) ;
+ predefined_shapes[56] := (ll--lry--ury--ul--cycle) ;
+ predefined_shapes[57] := (ll--lry--ury--ul--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[58] := (ll--ulx--urx--lr--cycle) ;
+ predefined_shapes[59] := (ll--ulx--urx--lr--cycle) rotatedaround(origin,180);
+ predefined_shapes[66] := (rc--origin shifted ( epsilon,0) --cycle & rc--origin--cycle ) ;
+ predefined_shapes[67] := (lc--origin shifted (-epsilon,0) --cycle & lc--origin--cycle ) ;
+ predefined_shapes[68] := (tc--origin shifted (0, epsilon) --cycle & tc--origin--cycle ) ;
+ predefined_shapes[69] := (bc--origin shifted (0,-epsilon) --cycle & bc--origin--cycle ) ;
+ predefined_shapes[75] := (lly--lry--ury--uly--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[76] := (ll--lr--ur--uly--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[77] := (ll--lr--ury--ul--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[78] := (lly--lr--ur--ul--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[79] := (ll--lry--ur--ul--cycle) rotatedaround(origin,180) ;
+
+ numeric predefined_shapes_xradius ; predefined_shapes_xradius := xradius ;
+ numeric predefined_shapes_yradius ; predefined_shapes_yradius := yradius ;
+ numeric predefined_shapes_xxradius ; predefined_shapes_xxradius := xxradius ;
+ numeric predefined_shapes_yyradius ; predefined_shapes_yyradius := yyradius ;
+
+stop_predefined_shape_definition ;
+
+vardef some_shape_path (expr type) =
+ if known predefined_shapes[type] : predefined_shapes[type] else : predefined_shapes[24] fi
+enddef ;
+
+def some_shape (expr shape_type, shape_width, shape_height, shape_linewidth, shape_linecolor, shape_fillcolor) =
+ begingroup ;
+ save p ; path p ;
+ p := some_shape_path (shape_type) xscaled shape_width yscaled shape_height ;
+ pickup pencircle scaled shape_linewidth ;
+ fill p withcolor shape_fillcolor ;
+ draw p withcolor shape_linecolor ;
+ endgroup ;
+enddef ;
+
+% maybe:
+%
+% if t>1 : % normal shape
+% path pp ; pp := some_shape_path(t) xyscaled(bbwidth(p), bbheight(p)) ;
+% pp := pp shifted - center pp shifted center p ;
+% fill pp withcolor fc ;
+% draw pp withpen pencircle scaled lw withcolor lc ;
+
+vardef drawpredefinedshape (expr t, p, lw, lc, fc) =
+ save pp ;
+ if t > 1 : % normal shape
+ path pp ;
+ pp := some_shape_path(t) xyscaled(bbwidth(p), bbheight(p)) shifted center p ;
+ fill pp withcolor fc ;
+ draw pp withpen pencircle scaled lw withcolor lc ;
+ elseif t = 1 : % background only
+ path pp ;
+ pp := fullsquare xyscaled(bbwidth(p), bbheight(p)) shifted center p ;
+ fill pp withcolor fc ;
+ else : % dimensions only
+ picture pp ; pp := nullpicture ;
+ setbounds pp to fullsquare xyscaled(bbwidth(p), bbheight(p)) shifted center p ;
+ draw pp ;
+ fi ;
+enddef ;
+
+vardef drawpredefinedline (expr t, p, lw, lc) =
+ if (t>0) and (length(p)>1) :
+ saveoptions ;
+ drawoptions(withpen pencircle scaled lw withcolor lc) ;
+ draw p ;
+ if t = 1 :
+ draw arrowheadonpath(p,1) ;
+ elseif t = 2 :
+ draw arrowheadonpath(reverse p,1) ;
+ elseif t = 3 :
+ for $ = p,reverse p :
+ draw arrowheadonpath($,1) ;
+ endfor ;
+ elseif t = 11 :
+ draw arrowheadonpath(p,1/2) ;
+ elseif t = 12 :
+ draw arrowheadonpath(reverse p,1/2) ;
+ elseif t = 13 :
+ for $=p,reverse p :
+ draw arrowheadonpath($,1) ;
+ endfor ;
+ for $=p,reverse p :
+ draw arrowheadonpath($,3/4) ;
+ endfor ;
+ elseif t = 21 :
+ for $=1/5,1/2,4/5 :
+ draw arrowheadonpath(p,$) ;
+ endfor ;
+ elseif t = 22 :
+ for $=1/5,1/2,4/5 :
+ draw arrowheadonpath(reverse p,$) ;
+ endfor ;
+ elseif t = 23 :
+ for $=p,reverse p :
+ draw arrowheadonpath($,1/4) ;
+ endfor ;
+ fi ;
+ fi ;
+enddef ;
+
+let drawshape = drawpredefinedshape ;
+let drawline = drawpredefinedline ;
diff --git a/metapost/context/base/mpxl/mp-tool.mpxl b/metapost/context/base/mpxl/mp-tool.mpxl
new file mode 100644
index 000000000..44cad274d
--- /dev/null
+++ b/metapost/context/base/mpxl/mp-tool.mpxl
@@ -0,0 +1,3825 @@
+%D \module
+%D [ file=mp-tool.mpiv,
+%D version=1998.02.15,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=auxiliary macros,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+if known context_tool : endinput ; fi ;
+
+boolean context_tool ; context_tool := true ; immutable context_tool ;
+
+let @## = @# ;
+
+let noexpand = quote ;
+
+permanent @##, noexpand ;
+
+%D New, version number testing:
+%D
+%D \starttyping
+%D fill fullcircle scaled 2cm withcolor if mpversiongt("0.6") : red else : green fi ;
+%D fill fullcircle scaled 1cm withcolor if mpversionlt(0.6) : blue else : white fi ;
+%D \stoptyping
+
+if not known mpversion : string mpversion ; mpversion := "0.641" ; fi ;
+
+% newinternal metapostversion ; metapostversion := scantokens(mpversion) ;
+
+newinternal metapostversion ; metapostversion := 2.0 ; permanent metapostversion ;
+
+%D We always want \EPS\ conforming output, so we say:
+
+warningcheck := 0 ;
+
+%D Handy:
+
+def nothing = enddef ;
+
+%D Namespace handling:
+
+% let exclamationmark = ! ;
+% let questionmark = ? ;
+%
+% def unprotect =
+% let ! = relax ;
+% let ? = relax ;
+% enddef ;
+%
+% def protect =
+% let ! = exclamationmark ;
+% let ? = questionmark ;
+% enddef ;
+%
+% unprotect ;
+%
+% mp!some!module = 10 ; show mp!some!module ; show somemodule ;
+%
+% protect ;
+
+string space ; space := char 32 ;
+string percent ; percent := char 37 ;
+string crlf ; crlf := char 10 & char 13 ;
+string dquote ; dquote := char 34 ;
+
+% let SPACE = space ;
+% let CRLF = crlf ;
+% let DQUOTE = dquote ;
+% let PERCENT = percent ;
+
+permanent space, percent, crlf, dquote ;
+
+% %D Plain compatibility:
+%
+% string plain_compatibility_data ; plain_compatibility_data := "" ;
+%
+% def startplaincompatibility =
+% begingroup ;
+% scantokens plain_compatibility_data ;
+% enddef ;
+%
+% def stopplaincompatibility =
+% endgroup ;
+% enddef ;
+
+%D More neutral:
+
+let triplet = rgbcolor ;
+let quadruplet = cmykcolor ;
+
+permanent triplet, quadruplet ;
+
+%D Image redefined, for Alan:
+
+vardef image@#(text t) =
+ save currentpicture ;
+ picture currentpicture ;
+ currentpicture := nullpicture ;
+ t ;
+ currentpicture
+ if str @# <> "" :
+ shifted (
+ mfun_labxf@# * lrcorner p
+ + mfun_labyf@# * ulcorner p
+ + (1-mfun_labxf@#-mfun_labyf@#) * llcorner p
+ )
+ fi
+enddef ;
+
+permanent image ;
+
+%D Variables
+
+def dispose suffix s =
+ if known s :
+ begingroup ;
+ save ss ;
+ if numeric s : numeric ss
+ elseif boolean s : boolean ss
+ elseif pair s : pair ss
+ elseif path s : path ss
+ elseif picture s : picture ss
+ elseif string s : string ss
+ elseif transform s : transform ss
+ elseif color s : color ss
+ elseif rgbcolor s : rgbcolor ss
+ elseif cmykcolor s : cmykcolor ss
+ elseif pen s : pen ss
+ else s : numeric ss
+ fi ;
+ s := ss ;
+ endgroup ;
+ fi ;
+enddef ;
+
+permanent dispose ;
+
+%D Colors:
+
+newinternal nocolormodel ; nocolormodel := 1 ;
+newinternal greycolormodel ; greycolormodel := 3 ;
+newinternal graycolormodel ; graycolormodel := 3 ;
+newinternal rgbcolormodel ; rgbcolormodel := 5 ;
+newinternal cmykcolormodel ; cmykcolormodel := 7 ;
+
+let grayscale = graycolor ;
+let greyscale = greycolor ;
+
+vardef colorpart expr c =
+ if not picture c :
+ 0
+ elseif colormodel c = greycolormodel :
+ greypart c
+ elseif colormodel c = rgbcolormodel :
+ (redpart c,greenpart c,bluepart c)
+ elseif colormodel c = cmykcolormodel :
+ (cyanpart c,magentapart c,yellowpart c,blackpart c)
+ else :
+ 0 % black
+ fi
+enddef ;
+
+vardef colorlike(text c) text v = % colorlike(a) b, c, d ;
+ save temp_p ; picture temp_p ;
+ forsuffixes i=v :
+ temp_p := image(draw origin withcolor c ;) ; % intercept pre and postscripts
+ if (colormodel temp_p = cmykcolormodel) :
+ cmykcolor i ;
+ elseif (colormodel temp_p = rgbcolormodel) :
+ rgbcolor i ;
+ else :
+ greycolor i ;
+ fi ;
+ endfor ;
+enddef ;
+
+permanent nocolormodel, greycolormodel, graycolormodel, rgbcolormodel, cmykcolormodel,
+ greyscale, grayscale, colorpart, colorlike ;
+
+%D Also multiple d's: handy (when we flush colors):
+
+vardef ddecimal primary p =
+ decimal xpart p & " " & decimal ypart p
+enddef ;
+
+vardef dddecimal primary c =
+ decimal redpart c & " " & decimal greenpart c & " " & decimal bluepart c
+enddef ;
+
+vardef ddddecimal primary c =
+ decimal cyanpart c & " " & decimal magentapart c & " " & decimal yellowpart c & " " & decimal blackpart c
+enddef ;
+
+vardef colordecimals primary c =
+ if cmykcolor c :
+ decimal cyanpart c & ":" & decimal magentapart c & ":" & decimal yellowpart c & ":" & decimal blackpart c
+ elseif rgbcolor c :
+ decimal redpart c & ":" & decimal greenpart c & ":" & decimal bluepart c
+ elseif string c:
+ colordecimals resolvedcolor(c)
+ else :
+ decimal c
+ fi
+enddef ;
+
+vardef colordecimalslist(text t) =
+ save b ; boolean b ; b := false ;
+ for s=t :
+ if b : & " " & fi
+ colordecimals(s)
+ hide(b := true ;)
+ endfor
+enddef ;
+
+permanent decimal, ddecimal, dddecimal, ddddecimal, colordecimals, colordecimalslist ;
+
+% vardef _ctx_color_spec_ primary c =
+% if cmykcolor c :
+% "c=" & decimal cyanpart c &
+% ",m=" & decimal magentapart c &
+% ",y=" & decimal yellowpart c &
+% ",k=" & decimal blackpart c
+% elseif rgbcolor c :
+% "r=" & decimal redpart c &
+% ",g=" & decimal greenpart c &
+% ",b=" & decimal bluepart c
+% else :
+% "s=" & decimal c
+% fi
+% enddef ;
+%
+% vardef _ctx_color_spec_list_(text t) =
+% save b ; boolean b ; b := false ;
+% for s=t :
+% if b : & " " & fi
+% _ctx_color_spec_(s)
+% hide(b := true ;)
+% endfor
+% enddef ;
+
+%D We have standardized data file names:
+
+def job_name =
+ jobname
+enddef ;
+
+%D Because \METAPOST\ has a hard coded limit of 4~datafiles,
+%D we need some trickery when we have multiple files. This will
+%D be redone (via \LUA).
+
+boolean savingdata ; savingdata := false ;
+boolean savingdatadone ; savingdatadone := false ;
+
+def savedata expr txt =
+ lua.mp.mf_save_data(txt);
+enddef ;
+
+def startsavingdata =
+ lua.mp.mf_start_saving_data();
+enddef ;
+
+def stopsavingdata =
+ lua.mp.mf_stop_saving_data() ;
+enddef ;
+
+def finishsavingdata =
+ lua.mp.mf_finish_saving_data() ;
+enddef ;
+
+%D Instead of a keystroke eating save and allocation
+%D sequence, you can use the \citeer {new} alternatives to
+%D save and allocate in one command.
+
+%D These might go away!
+
+% def newcolor text v = forsuffixes i=v : save i ; color i ; endfor ; enddef ;
+% def newnumeric text v = forsuffixes i=v : save i ; numeric i ; endfor ; enddef ;
+% def newboolean text v = forsuffixes i=v : save i ; boolean i ; endfor ; enddef ;
+% def newtransform text v = forsuffixes i=v : save i ; transform i ; endfor ; enddef ;
+% def newpath text v = forsuffixes i=v : save i ; path i ; endfor ; enddef ;
+% def newpicture text v = forsuffixes i=v : save i ; picture i ; endfor ; enddef ;
+% def newstring text v = forsuffixes i=v : save i ; string i ; endfor ; enddef ;
+% def newpair text v = forsuffixes i=v : save i ; pair i ; endfor ; enddef ;
+
+%D Sometimes we don't want parts of the graphics add to the
+%D bounding box. One way of doing this is to save the bounding
+%D box, draw the graphics that may not count, and restore the
+%D bounding box.
+%D
+%D \starttyping
+%D push_boundingbox currentpicture;
+%D pop_boundingbox currentpicture;
+%D \stoptyping
+%D
+%D The bounding box can be called with:
+%D
+%D \starttyping
+%D boundingbox currentpicture
+%D inner_boundingbox currentpicture
+%D outer_boundingbox currentpicture
+%D \stoptyping
+%D
+%D Especially the latter one can be of use when we include
+%D the graphic in a document that is clipped to the bounding
+%D box. In such occasions one can use:
+%D
+%D \starttyping
+%D set_outer_boundingbox currentpicture;
+%D \stoptyping
+%D
+%D Its counterpart is:
+%D
+%D \starttyping
+%D set_inner_boundingbox p
+%D \stoptyping
+
+path mfun_boundingbox_stack[] ;
+numeric mfun_boundingbox_stack_depth ;
+
+mfun_boundingbox_stack_depth := 0 ;
+
+def pushboundingbox text p =
+ mfun_boundingbox_stack_depth := mfun_boundingbox_stack_depth + 1 ;
+ mfun_boundingbox_stack[mfun_boundingbox_stack_depth] := boundingbox p ;
+enddef ;
+
+def popboundingbox text p =
+ setbounds p to mfun_boundingbox_stack[mfun_boundingbox_stack_depth] ;
+ mfun_boundingbox_stack[mfun_boundingbox_stack_depth] := origin -- cycle ;
+ mfun_boundingbox_stack_depth := mfun_boundingbox_stack_depth - 1 ;
+enddef ;
+
+% let push_boundingbox = pushboundingbox ; % downward compatible
+% let pop_boundingbox = popboundingbox ; % downward compatible
+
+vardef boundingbox primary p =
+ if (path p) or (picture p) :
+ llcorner p -- lrcorner p -- urcorner p -- ulcorner p
+ else :
+ origin
+ fi -- cycle
+enddef;
+
+vardef innerboundingbox primary p =
+ top rt llcorner p --
+ top lft lrcorner p --
+ bot lft urcorner p --
+ bot rt ulcorner p -- cycle
+enddef;
+
+vardef outerboundingbox primary p =
+ bot lft llcorner p --
+ bot rt lrcorner p --
+ top rt urcorner p --
+ top lft ulcorner p -- cycle
+enddef;
+
+% def inner_boundingbox = innerboundingbox enddef ;
+% def outer_boundingbox = outerboundingbox enddef ;
+%
+% vardef set_inner_boundingbox text q = % obsolete
+% setbounds q to innerboundingbox q;
+% enddef;
+%
+% vardef set_outer_boundingbox text q = % obsolete
+% setbounds q to outerboundingbox q;
+% enddef;
+
+% secondarydef a boundedto b = % will this cleanup ?
+% hide(picture mfun_a_b ; mfun_a_b := a ; setbounds mfun_a_b to b;)
+% mfun_a_b
+% enddef ;
+
+%D Here are some special ones, cooked up in the process of Alan's mp-node
+%D module:
+
+vardef boundingradius primary p =
+ if picture p :
+ max(
+ abs((llcorner p) shifted -center p),
+ abs((lrcorner p) shifted -center p),
+ abs((urcorner p) shifted -center p),
+ abs((ulcorner p) shifted -center p)
+ )
+ elseif pen p :
+ boundingradius image(draw makepath p ;)
+ elseif path p :
+ boundingradius image(draw p ;)
+ fi
+enddef ;
+
+vardef boundingcircle primary p =
+ fullcircle scaled 2boundingradius p shifted center p
+enddef ;
+
+vardef boundingpoint@#(expr p) =
+ if picture p : % pen?
+ ( mfun_labxf@# *ulcorner p
+ + mfun_labyf@# *lrcorner p
+ +(1-mfun_labxf@#-mfun_labyf@#)*urcorner p)
+ elseif path p :
+ boundingpoint@#(image(draw p ;))
+ %elseif pair p :
+ % p
+ %else :
+ % origin
+ fi
+enddef ;
+
+permanent pushboundingbox, popboundingbox, boundingbox, innerboundingbox, outerboundingbox,
+ boundingradius, boundingcircle, boundingpoint ;
+
+%D Whatever:
+
+def mirrored primary a =
+ a scaled -1
+enddef ;
+
+primarydef a mirroredabout b =
+ (a shifted -b) scaled -1 shifted b
+enddef ;
+
+permanent mirrored, mirroredabout ;
+
+%D Some missing functions can be implemented rather straightforward (thanks to
+%D Taco and others):
+
+% oldpi := 3.14159265358979323846 ; % from <math.h>
+pi := 3.14159265358979323846264338327950288419716939937510 ; % 50 digits
+radian := 180/pi ; % 2pi*radian = 360 ;
+
+permanent pi, radian ;
+
+% let +++ = ++ ;
+
+vardef sqr primary x = x*x enddef ;
+vardef log primary x = if x=0: 0 else: mlog(x)/mlog(10) fi enddef ;
+vardef ln primary x = if x=0: 0 else: mlog(x)/256 fi enddef ;
+vardef exp primary x = (mexp 256)**x enddef ;
+vardef inv primary x = if x=0: 0 else: x**-1 fi enddef ;
+
+vardef pow (expr x,p) = x**p enddef ;
+
+vardef tand primary x = sind(x)/cosd(x) enddef ;
+vardef cotd primary x = cosd(x)/sind(x) enddef ;
+
+% sin primary x = sind(x*radian) enddef ;
+% cos primary x = cosd(x*radian) enddef ;
+% tan primary x = sin(x)/cos(x) enddef ;
+vardef cot primary x = cos(x)/sin(x) enddef ;
+
+% asin primary x = angle((1+-+x,x)) enddef ;
+% acos primary x = angle((x,1+-+x)) enddef ;
+% atan primary x = angle(1,x) enddef ;
+
+% invsin primary x = (asin(x))/radian enddef ;
+% invcos primary x = (acos(x))/radian enddef ;
+% invtan primary x = (atan(x))/radian enddef ;
+
+% acosh primary x = ln(x+(x+-+1)) enddef ;
+% asinh primary x = ln(x+(x++1)) enddef ;
+
+% sinh primary x = save xx ; xx = exp x ; (xx-1/xx)/2 enddef ;
+% cosh primary x = save xx ; xx = exp x ; (xx+1/xx)/2 enddef ;
+% tanh primary x = save xx ; xx = exp x ; (xx-1/xx)/(xx+1/xx) enddef ;
+
+%D Like mod, but useful for angles, it returns (-.5d,+.5d] and is used
+%D in for instance mp-chem.
+
+primarydef a zmod b = (-((b/2 - a) mod b) + b/2) enddef ;
+
+permanent sqr, log, ln, exp, inv, pow, tand, cotd, cot, zmod ;
+
+%D Sometimes this is handy:
+
+def undashed =
+ dashed nullpicture
+enddef ;
+
+permanent undashed ;
+
+%D We provide two macros for drawing stripes across a shape.
+%D The first method (with the n suffix) uses another method,
+%D slower in calculation, but more efficient when drawn. The
+%D first macro divides the sides into n equal parts. The
+%D first argument specifies the way the lines are drawn, while
+%D the second argument identifier the way the shape is to be
+%D drawn.
+%D
+%D \starttyping
+%D stripe_path_n
+%D (dashed evenly withcolor blue)
+%D (filldraw)
+%D fullcircle xscaled 100 yscaled 40 shifted (50,50) withpen pencircle scaled 4;
+%D \stoptyping
+%D
+%D The a (or angle) alternative supports arbitrary angles and
+%D is therefore more versatile.
+%D
+%D \starttyping
+%D stripe_path_a
+%D (withpen pencircle scaled 2 withcolor red)
+%D (draw)
+%D fullcircle xscaled 100 yscaled 40 withcolor blue;
+%D \stoptyping
+%D
+%D We have two alternatives, controlled by arguments or defaults (when arguments
+%D are zero).
+%D
+%D The newer and nicer interface is used as follows (triggered by a question by Mari):
+%D
+%D \starttyping
+%D draw image (draw fullcircle scaled 3cm shifted (0cm,0cm) withcolor green) numberstriped (1,10,3) withcolor red ;
+%D draw image (draw fullcircle scaled 3cm shifted (3cm,0cm) withcolor green) numberstriped (2,20,3) withcolor green ;
+%D draw image (draw fullcircle scaled 3cm shifted (3cm,3cm) withcolor green) numberstriped (3,10,5) withcolor blue ;
+%D draw image (draw fullcircle scaled 3cm shifted (0cm,3cm) withcolor green) numberstriped (4,20,5) withcolor yellow ;
+%D
+%D draw image (draw fullcircle scaled 3cm shifted (6cm,0cm) withcolor green) anglestriped (1,20,2) withcolor red ;
+%D draw image (draw fullcircle scaled 3cm shifted (9cm,0cm) withcolor green) anglestriped (2,40,2) withcolor green ;
+%D draw image (draw fullcircle scaled 3cm shifted (9cm,3cm) withcolor green) anglestriped (3,60,2) withcolor blue ;
+%D draw image (draw fullcircle scaled 3cm shifted (6cm,3cm) withcolor green) anglestriped (4,80,2) withcolor yellow ;
+%D
+%D draw image (
+%D draw fullcircle scaled 3cm shifted (0cm,0cm) withcolor green withpen pencircle scaled 2mm ;
+%D draw fullcircle scaled 2cm shifted (0cm,1cm) withcolor blue withpen pencircle scaled 3mm ;
+%D ) shifted (9cm,0cm) numberstriped (1,10,3) withcolor red ;
+%D
+%D draw image (
+%D draw fullcircle scaled 3cm shifted (0cm,0cm) withcolor green withpen pencircle scaled 2mm ;
+%D draw fullcircle scaled 2cm shifted (0cm,1cm) withcolor blue withpen pencircle scaled 3mm ;
+%D ) shifted (12cm,0cm) numberstriped (2,10,3) withcolor red ;
+%D
+%D draw image (
+%D draw fullcircle scaled 3cm shifted (0cm,0cm) withcolor green withpen pencircle scaled 2mm ;
+%D draw fullcircle scaled 2cm shifted (0cm,1cm) withcolor blue withpen pencircle scaled 3mm ;
+%D ) shifted (9cm,5cm) numberstriped (3,10,3) withcolor red ;
+%D
+%D draw image (
+%D draw fullcircle scaled 3cm shifted (0cm,0cm) withcolor green withpen pencircle scaled 2mm ;
+%D draw fullcircle scaled 2cm shifted (0cm,1cm) withcolor blue withpen pencircle scaled 3mm ;
+%D ) shifted (12cm,5cm) numberstriped (4,10,3) withcolor red ;
+%D \stoptyping
+
+stripe_n := 10;
+stripe_slot := 3;
+stripe_gap := 5;
+stripe_angle := 45;
+
+def mfun_tool_striped_number_action text extra =
+ for i = 1/used_n step 1/used_n until 1 :
+ draw point (1+i) of bounds -- point (3-i) of bounds withpen pencircle scaled penwidth extra ;
+ endfor ;
+ for i = 0 step 1/used_n until 1 :
+ draw point (3+i) of bounds -- point (1-i) of bounds withpen pencircle scaled penwidth extra ;
+ endfor ;
+enddef ;
+
+def mfun_tool_striped_set_options(expr option) =
+ save isinner, swapped ;
+ boolean isinner, swapped ;
+ if option = 1 :
+ isinner := false ;
+ swapped := false ;
+ elseif option = 2 :
+ isinner := true ;
+ swapped := false ;
+ elseif option = 3 :
+ isinner := false ;
+ swapped := true ;
+ elseif option = 4 :
+ isinner := true ;
+ swapped := true ;
+ else :
+ isinner := false ;
+ swapped := false ;
+ fi ;
+enddef ;
+
+vardef mfun_tool_striped_number(expr option, p, asked_n, asked_slot) text extra =
+ image (
+ begingroup ;
+ save pattern, shape, bounds, penwidth, used_n, used_slot ;
+ picture pattern, shape ; path bounds ; numeric used_s, used_slot ;
+ mfun_tool_striped_set_options(option) ;
+ used_slot := if asked_slot = 0 : stripe_slot else : asked_slot fi ;
+ used_n := if asked_n = 0 : stripe_n else : asked_n fi ;
+ shape := image(draw p) ;
+ bounds := boundingbox shape ;
+ penwidth := min(ypart urcorner shape - ypart llcorner shape, xpart urcorner shape - xpart llcorner shape) / (used_slot * used_n) ;
+ pattern := image (
+ if isinner :
+ mfun_tool_striped_number_action extra ;
+ for s within shape :
+ if stroked s or filled s :
+ clip currentpicture to pathpart s ;
+ fi
+ endfor ;
+ else :
+ for s within shape :
+ if stroked s or filled s :
+ draw image (
+ mfun_tool_striped_number_action extra ;
+ clip currentpicture to pathpart s ;
+ ) ;
+ fi ;
+ endfor ;
+ fi ;
+ ) ;
+ if swapped :
+ addto currentpicture also shape ;
+ addto currentpicture also pattern ;
+ else :
+ addto currentpicture also pattern ;
+ addto currentpicture also shape ;
+ fi ;
+ endgroup ;
+ )
+enddef ;
+
+def mfun_tool_striped_angle_action text extra =
+ for i = minimum -.5used_gap step used_gap until maximum :
+ draw (minimum,i) -- (maximum,i) extra ;
+ endfor ;
+ currentpicture := currentpicture rotated used_angle ;
+enddef ;
+
+vardef mfun_tool_striped_angle(expr option, p, asked_angle, asked_gap) text extra =
+ image (
+ begingroup ;
+ save pattern, shape, mask, maximum, minimum, centrum, used_angle, used_gap ;
+ picture pattern, shape, mask ; numeric maximum, minimum ; pair centrum ; numeric used_angle, used_gap ;
+ mfun_tool_striped_set_options(option) ;
+ used_angle := if asked_angle = 0 : stripe_angle else : asked_angle fi ;
+ used_gap := if asked_gap = 0 : stripe_gap else : asked_gap fi ;
+ shape := image(draw p) ;
+ centrum := center shape ;
+ shape := shape shifted - centrum ;
+ mask := shape rotated used_angle ;
+ maximum := max (xpart llcorner mask, xpart urcorner mask, ypart llcorner mask, ypart urcorner mask) ;
+ minimum := min (xpart llcorner mask, xpart urcorner mask, ypart llcorner mask, ypart urcorner mask) ;
+ pattern := image (
+ if isinner :
+ mfun_tool_striped_angle_action extra ;
+ for s within shape :
+ if stroked s or filled s :
+ clip currentpicture to pathpart s ;
+ fi
+ endfor ;
+ else :
+ for s within shape :
+ if stroked s or filled s :
+ draw image (
+ mfun_tool_striped_angle_action extra ;
+ clip currentpicture to pathpart s ;
+ ) ;
+ fi ;
+ endfor ;
+ fi ;
+ ) ;
+ if swapped :
+ addto currentpicture also shape ;
+ addto currentpicture also pattern ;
+ else :
+ addto currentpicture also pattern ;
+ addto currentpicture also shape ;
+ fi ;
+ currentpicture := currentpicture shifted centrum ;
+ endgroup ;
+ )
+enddef;
+
+newinternal striped_normal_inner ; striped_normal_inner := 1 ;
+newinternal striped_reverse_inner ; striped_reverse_inner := 2 ;
+newinternal striped_normal_outer ; striped_normal_outer := 3 ;
+newinternal striped_reverse_outer ; striped_reverse_outer := 4 ;
+
+secondarydef p anglestriped s =
+ mfun_tool_striped_angle(redpart s,p,greenpart s,bluepart s)
+enddef ;
+
+secondarydef p numberstriped s =
+ mfun_tool_striped_number(redpart s,p,greenpart s,bluepart s)
+enddef ;
+
+% for old times sake:
+
+def stripe_path_n (text asked_spec) (text asked_draw) expr asked_path =
+ do_stripe_path_n (asked_spec) (asked_draw) (asked_path)
+enddef;
+
+def do_stripe_path_n (text asked_spec) (text asked_draw) (expr asked_path) text asked_text =
+ draw image(asked_draw asked_path asked_text) numberstriped(3,0,0) asked_spec ;
+enddef ;
+
+def stripe_path_a (text asked_spec) (text asked_draw) expr asked_path =
+ do_stripe_path_a (asked_spec) (asked_draw) (asked_path)
+enddef;
+
+def do_stripe_path_a (text asked_spec) (text asked_draw) (expr asked_path) text asked_text =
+ draw image(asked_draw asked_path asked_text) anglestriped(3,0,0) asked_spec ;
+enddef ;
+
+%D A few normalizing macros:
+
+primarydef p xsized w =
+ (p if (bbwidth (p) > 0) and (w > 0) : scaled (w/bbwidth (p)) fi)
+enddef ;
+
+primarydef p ysized h =
+ (p if (bbheight(p) > 0) and (h > 0) : scaled (h/bbheight(p)) fi)
+enddef ;
+
+primarydef p xysized s =
+ begingroup
+ save wh, w, h ; pair wh ; numeric w, h ;
+ wh := paired (s) ; w := bbwidth(p) ; h := bbheight(p) ;
+ p
+ if (w>0) and (h>0) :
+ if xpart wh > 0 : xscaled (xpart wh/w) fi
+ if ypart wh > 0 : yscaled (ypart wh/h) fi
+ fi
+ endgroup
+enddef ;
+
+let sized = xysized ;
+
+permanent xsized, ysized, xysized, sized ;
+
+def xscale_currentpicture(expr w) = % obsolete
+ currentpicture := currentpicture xsized w ;
+enddef;
+
+def yscale_currentpicture(expr h) = % obsolete
+ currentpicture := currentpicture ysized h ;
+enddef;
+
+def xyscale_currentpicture(expr w, h) = % obsolete
+ currentpicture := currentpicture xysized (w,h) ;
+enddef;
+
+def scale_currentpicture(expr w, h) = % obsolete
+ currentpicture := currentpicture xsized w ;
+ currentpicture := currentpicture ysized h ;
+enddef;
+
+%D A full circle is centered at the origin, while a unitsquare
+%D is located in the first quadrant. Now guess what kind of
+%D path fullsquare and unitcircle do return.
+
+path fullsquare, unitcircle ;
+
+fullsquare := unitsquare shifted - center unitsquare ;
+unitcircle := fullcircle shifted urcorner fullcircle ;
+
+%D Some more paths:
+
+path urcircle, ulcircle, llcircle, lrcircle ;
+
+urcircle := origin -- (+.5,0) & (+.5,0){up} .. (0,+.5) & (0,+.5) -- cycle ;
+ulcircle := origin -- (0,+.5) & (0,+.5){left} .. (-.5,0) & (-.5,0) -- cycle ;
+llcircle := origin -- (-.5,0) & (-.5,0){down} .. (0,-.5) & (0,-.5) -- cycle ;
+lrcircle := origin -- (0,-.5) & (0,-.5){right} .. (+.5,0) & (+.5,0) -- cycle ;
+
+path tcircle, bcircle, lcircle, rcircle ;
+
+tcircle = origin -- (+.5,0) & (+.5,0) {up} .. (0,+.5) .. {down} (-.5,0) -- cycle ;
+bcircle = origin -- (-.5,0) & (-.5,0) {down} .. (0,-.5) .. {up} (+.5,0) -- cycle ;
+lcircle = origin -- (0,+.5) & (0,+.5) {left} .. (-.5,0) .. {right} (0,-.5) -- cycle ;
+rcircle = origin -- (0,-.5) & (0,-.5) {right} .. (+.5,0) .. {left} (0,+.5) -- cycle ;
+
+path urtriangle, ultriangle, lltriangle, lrtriangle ; % watch out: it's contrary to what you expect and starts in the origin
+
+urtriangle := origin -- (+.5,0) -- (0,+.5) -- cycle ;
+ultriangle := origin -- (0,+.5) -- (-.5,0) -- cycle ;
+lltriangle := origin -- (-.5,0) -- (0,-.5) -- cycle ;
+lrtriangle := origin -- (0,-.5) -- (+.5,0) -- cycle ;
+
+path triangle, uptriangle, downtriangle, lefttriangle, righttriangle ;
+
+triangle := (1,0) -- (1,0) rotated 120 -- (1,0) rotated -120 -- cycle ;
+
+uptriangle := triangle rotated 90 ;
+downtriangle := triangle rotated -90 ;
+lefttriangle := triangle rotated 180 ;
+righttriangle := triangle ;
+
+path unitdiamond, fulldiamond ;
+
+unitdiamond := (.5,0) -- (1,.5) -- (.5,1) -- (0,.5) -- cycle ;
+fulldiamond := unitdiamond shifted - center unitdiamond ;
+
+permanent
+ fullsquare, unitcircle,
+ urcircle, ulcircle, llcircle, lrcircle,
+ tcircle, bcircle, lcircle, rcircle,
+ urtriangle, ultriangle, lltriangle, lrtriangle,
+ triangle, uptriangle, downtriangle, lefttriangle, righttriangle,
+ unitdiamond, fulldiamond ;
+
+%D More robust:
+
+% let normalscaled = scaled ;
+% let normalxscaled = xscaled ;
+% let normalyscaled = yscaled ;
+%
+% def scaled expr s = normalscaled (s) enddef ;
+% def xscaled expr s = normalxscaled (s) enddef ;
+% def yscaled expr s = normalyscaled (s) enddef ;
+
+%D Shorter
+
+primarydef p xyscaled q = % secundarydef does not work out well
+ begingroup
+ save qq ; pair qq ;
+ qq = paired(q) ;
+ p
+ if xpart qq <> 0 : xscaled (xpart qq) fi
+ if ypart qq <> 0 : yscaled (ypart qq) fi
+ endgroup
+enddef ;
+
+permanent xyscaled ;
+
+%D Some personal code that might move to another module (todo: save).
+
+def set_grid(expr w, h, nx, ny) =
+ boolean grid[][] ; boolean grid_full ;
+ numeric grid_w, grid_h, grid_nx, grid_ny, grid_x, grid_y, grid_left ;
+ grid_w := w ;
+ grid_h := h ;
+ grid_nx := nx ;
+ grid_ny := ny ;
+ grid_x := round(w/grid_nx) ; % +.5) ;
+ grid_y := round(h/grid_ny) ; % +.5) ;
+ grid_left := (1+grid_x)*(1+grid_y) ;
+ grid_full := false ;
+ for i=0 upto grid_x :
+ for j=0 upto grid_y :
+ grid[i][j] := false ;
+ endfor ;
+ endfor ;
+enddef ;
+
+vardef new_on_grid(expr grid_dx, grid_dy) =
+ dx := grid_dx ;
+ dy := grid_dy ;
+ ddx := min(round(dx/grid_nx),grid_x) ; % +.5),grid_x) ;
+ ddy := min(round(dy/grid_ny),grid_y) ; % +.5),grid_y) ;
+ if not grid_full and not grid[ddx][ddy] :
+ grid[ddx][ddy] := true ;
+ grid_left := grid_left-1 ;
+ grid_full := (grid_left=0) ;
+ true
+ else :
+ false
+ fi
+enddef ;
+
+%D usage: \type{innerpath peepholed outerpath}.
+%D
+%D beginfig(1);
+%D def fullsquare = (unitsquare shifted -center unitsquare) enddef ;
+%D fill (fullsquare scaled 200) withcolor red ;
+%D path p ; p := (fullcircle scaled 100) ; bboxmargin := 0 ;
+%D fill p peepholed bbox p ;
+%D endfig;
+
+secondarydef p peepholed q =
+ begingroup
+ save start ; pair start ;
+ start := point 0 of p ;
+ if xpart start >= xpart center p :
+ if ypart start >= ypart center p :
+ urcorner q -- ulcorner q -- llcorner q -- lrcorner q --
+ reverse p -- lrcorner q -- cycle
+ else :
+ lrcorner q -- urcorner q -- ulcorner q -- llcorner q --
+ reverse p -- llcorner q -- cycle
+ fi
+ else :
+ if ypart start > ypart center p :
+ ulcorner q -- llcorner q -- lrcorner q -- urcorner q --
+ reverse p -- urcorner q -- cycle
+ else :
+ llcorner q -- lrcorner q -- urcorner q -- ulcorner q --
+ reverse p -- ulcorner q -- cycle
+ fi
+ fi
+ endgroup
+enddef ;
+
+boolean intersection_found ;
+
+secondarydef p intersection_point q =
+ begingroup
+ save temp_x, temp_y ;
+ (temp_x,temp_y) = p intersectiontimes q ;
+ if temp_x < 0 :
+ intersection_found := false ;
+ center p % origin
+ else :
+ intersection_found := true ;
+ .5[point temp_x of p, point temp_y of q]
+ fi
+ endgroup
+enddef ;
+
+%D New, undocumented, experimental:
+
+vardef tensecircle (expr width, height, offset) =
+ (-width/2,-height/2) ... (0,-height/2-offset) ...
+ (+width/2,-height/2) ... (+width/2+offset,0) ...
+ (+width/2,+height/2) ... (0,+height/2+offset) ...
+ (-width/2,+height/2) ... (-width/2-offset,0) ... cycle
+enddef ;
+
+vardef roundedsquare (expr width, height, offset) =
+ (offset,0) -- (width-offset,0) {right} ..
+ (width,offset) -- (width,height-offset) {up} ..
+ (width-offset,height) -- (offset,height) {left} ..
+ (0,height-offset) -- (0,offset) {down} .. cycle
+enddef ;
+
+vardef roundedsquarexy (expr width, height, dx, dy) =
+ (dx,0) -- (width-dx,0) {right} ..
+ (width,dy) -- (width,height-dy) {up} ..
+ (width-dx,height) -- (dx,height) {left} ..
+ (0,height-dy) -- (0,dy) {down} .. cycle
+enddef ;
+
+permanent tensecircle, roundedsquare, roundedsquarexy ;
+
+%D Some colors.
+
+def resolvedcolor(expr s) =
+ .5white
+enddef ;
+
+let normalwithcolor = withcolor ;
+
+def withcolor expr c =
+ normalwithcolor if string c : resolvedcolor(c) else : c fi
+enddef ;
+
+permanent resolvedcolor, normalwithcolor, withcolor ;
+
+% I don't want a "withcolor black" in case of an empty string ... who knows
+% how that can interfere with outer colors. Somehow the next one doesn't
+% always work out ok, but why ... must be some parsing issue. Anyway, when
+% we cannot do that, we need to fix some chem macros instead as empty strings
+% now lead to black while everywhere else in context empty means: leave color
+% untouched.
+
+% def withcolor expr c =
+% if not string c :
+% normalwithcolor c
+% elseif c <> "" :
+% normalwithcolor resolvedcolor(c)
+% fi
+% enddef ;
+
+% So why does this work better than the above:
+%
+% def withcolor expr c =
+% if string c :
+% if c <> "" :
+% normalwithcolor resolvedcolor(c)
+% fi
+% else :
+% normalwithcolor c
+% fi
+% enddef ;
+
+vardef colortype expr c =
+ if cmykcolor c : cmykcolor
+ elseif rgbcolor c : rgbcolor
+ elseif numeric c : grayscale
+ fi
+enddef ;
+
+vardef whitecolor expr c =
+ if cmykcolor c : (0,0,0,0)
+ elseif rgbcolor c : (1,1,1)
+ elseif numeric c : 1
+ elseif string c : whitecolor resolvedcolor(c)
+ fi
+enddef ;
+
+vardef blackcolor expr c =
+ if cmykcolor c : (0,0,0,1)
+ elseif rgbcolor c : (0,0,0)
+ elseif numeric c : 0
+ elseif string c : blackcolor resolvedcolor(c)
+ fi
+enddef ;
+
+vardef complementary expr c =
+ if cmykcolor c : (1,1,1,1) - c
+ elseif rgbcolor c : (1,1,1) - c
+ elseif pair c : (1,1) - c
+ elseif numeric c : 1 - c
+ elseif string c : complementary resolvedcolor(c)
+ fi
+enddef ;
+
+vardef complemented expr c =
+ save m ;
+ if cmykcolor c : m := max(cyanpart c, magentapart c, yellowpart c, blackpart c) ;
+ (m,m,m,m) - c
+ elseif rgbcolor c : m := max(redpart c, greenpart c, bluepart c) ;
+ (m,m,m) - c
+ elseif pair c : m := max(xpart c, ypart c) ;
+ (m,m) - c
+ elseif numeric c : m - c
+ elseif string c : complemented resolvedcolor(c)
+ fi
+enddef ;
+
+permanent colortype, whitecolor, blackcolor, complementary, complemented ;
+
+%D Well, this is the dangerous and naive version:
+
+% def drawfill text t =
+% fill t ;
+% draw t ;
+% enddef;
+
+%D This two step approach saves the path first, since it can
+%D be a function. Attributes must not be randomized.
+
+def drawfill expr c =
+ path temp_c ; temp_c := c ;
+ mfun_do_drawfill
+enddef ;
+
+def mfun_do_drawfill text t =
+ draw temp_c t ;
+ fill temp_c t ;
+enddef;
+
+def undrawfill expr c =
+ drawfill c withcolor background % rather useless
+enddef ;
+
+permanent drawfill, undrawfill ;
+
+%D Moved from mp-char.mp
+
+vardef paired primary d =
+ if pair d : d else : (d,d) fi
+enddef ;
+
+vardef tripled primary d =
+ if color d : d else : (d,d,d) fi
+enddef ;
+
+permanent paired, tripled ;
+
+% maybe secondaries:
+
+primarydef p enlarged d = ( p llmoved d -- p lrmoved d -- p urmoved d -- p ulmoved d -- cycle ) enddef ;
+primarydef p llenlarged d = ( p llmoved d -- lrcorner p -- urcorner p -- ulcorner p -- cycle ) enddef ;
+primarydef p lrenlarged d = ( llcorner p -- p lrmoved d -- urcorner p -- ulcorner p -- cycle ) enddef ;
+primarydef p urenlarged d = ( llcorner p -- lrcorner p -- p urmoved d -- ulcorner p -- cycle ) enddef ;
+primarydef p ulenlarged d = ( llcorner p -- lrcorner p -- urcorner p -- p ulmoved d -- cycle ) enddef ;
+
+primarydef p llmoved d = ( (llcorner p) shifted (-xpart paired(d),-ypart paired(d)) ) enddef ;
+primarydef p lrmoved d = ( (lrcorner p) shifted (+xpart paired(d),-ypart paired(d)) ) enddef ;
+primarydef p urmoved d = ( (urcorner p) shifted (+xpart paired(d),+ypart paired(d)) ) enddef ;
+primarydef p ulmoved d = ( (ulcorner p) shifted (-xpart paired(d),+ypart paired(d)) ) enddef ;
+
+primarydef p leftenlarged d = ( (llcorner p) shifted (-d,0) -- lrcorner p -- urcorner p -- (ulcorner p) shifted (-d,0) -- cycle ) enddef ;
+primarydef p rightenlarged d = ( llcorner p -- (lrcorner p) shifted (d,0) -- (urcorner p) shifted (d,0) -- ulcorner p -- cycle ) enddef ;
+primarydef p topenlarged d = ( llcorner p -- lrcorner p -- (urcorner p) shifted (0,d) -- (ulcorner p) shifted (0,d) -- cycle ) enddef ;
+primarydef p bottomenlarged d = ( llcorner p shifted (0,-d) -- lrcorner p shifted (0,-d) -- urcorner p -- ulcorner p -- cycle ) enddef ;
+
+
+permanent
+ enlarged, llenlarged, lrenlarged, urenlarged, ulenlarged,
+ llmoved, lrmoved, urmoved, ulmoved,
+ leftenlarged, rightenlarged, topenlarged, bottomenlarged ;
+
+%D Handy as stepper:
+
+vardef rotation(expr i, n) =
+ if (n == 0) : 0 else : i * 360 / n fi
+enddef ;
+
+
+permanent rotation ;
+
+%D Handy for testing/debugging; the ladders are for math:
+
+primarydef p crossed d = (
+ if pair p :
+ p shifted (-d, 0) -- p --
+ p shifted ( 0,-d) -- p --
+ p shifted (+d, 0) -- p --
+ p shifted ( 0,+d) -- p -- cycle
+ else :
+ center p shifted (-d, 0) -- llcorner p --
+ center p shifted ( 0,-d) -- lrcorner p --
+ center p shifted (+d, 0) -- urcorner p --
+ center p shifted ( 0,+d) -- ulcorner p -- cycle
+ fi
+) enddef ;
+
+vardef laddered primary p = % was expr
+ point 0 of p
+ for i=1 upto length(p) :
+ -- (xpart (point i of p), ypart (point (i-1) of p)) -- (point i of p)
+ endfor
+enddef ;
+
+permanent crossed, laddered ;
+
+%D Saves typing:
+
+% vardef bottomboundary primary p = (llcorner p -- lrcorner p) enddef ;
+% vardef rightboundary primary p = (lrcorner p -- urcorner p) enddef ;
+% vardef topboundary primary p = (urcorner p -- ulcorner p) enddef ;
+% vardef leftboundary primary p = (ulcorner p -- llcorner p) enddef ;
+
+vardef bottomboundary primary p = if pair p : p else : (llcorner p -- lrcorner p) fi enddef ;
+vardef rightboundary primary p = if pair p : p else : (lrcorner p -- urcorner p) fi enddef ;
+vardef topboundary primary p = if pair p : p else : (urcorner p -- ulcorner p) fi enddef ;
+vardef leftboundary primary p = if pair p : p else : (ulcorner p -- llcorner p) fi enddef ;
+
+permanent bottomboundary, rightboundary, topboundary, leftboundary ;
+
+%D Nice too:
+
+primarydef p superellipsed s =
+ superellipse (
+ .5[lrcorner p,urcorner p],
+ .5[urcorner p,ulcorner p],
+ .5[ulcorner p,llcorner p],
+ .5[llcorner p,lrcorner p],
+ s
+ )
+enddef ;
+
+primarydef p squeezed s = (
+ (llcorner p .. .5[llcorner p,lrcorner p] shifted ( 0, ypart paired(s)) .. lrcorner p) &
+ (lrcorner p .. .5[lrcorner p,urcorner p] shifted (-xpart paired(s), 0) .. urcorner p) &
+ (urcorner p .. .5[urcorner p,ulcorner p] shifted ( 0,-ypart paired(s)) .. ulcorner p) &
+ (ulcorner p .. .5[ulcorner p,llcorner p] shifted ( xpart paired(s), 0) .. llcorner p) & cycle
+) enddef ;
+
+primarydef p randomshifted s =
+ begingroup ;
+ save ss ; pair ss ;
+ ss := paired(s) ;
+ p shifted (-.5xpart ss + uniformdeviate xpart ss,-.5ypart ss + uniformdeviate ypart ss)
+ endgroup
+enddef ;
+
+vardef mfun_randomized_path(expr p,s) =
+ for i=0 upto length(p)-1 :
+ (point i of p) .. controls
+ ((postcontrol i of p) randomshifted s) and
+ ((precontrol (i+1) of p) randomshifted s) ..
+ endfor
+ if cycle p :
+ cycle
+ else :
+ (point length(p) of p)
+ fi
+enddef;
+
+vardef mfun_randomized_picture(expr p,s)(text rnd) =
+ save currentpicture ;
+ picture currentpicture ;
+ currentpicture := nullpicture ;
+ for i within p :
+ addto currentpicture
+ if stroked i :
+ doublepath pathpart i rnd s
+ dashed dashpart i
+ withpen penpart i
+ withcolor colorpart i
+ withprescript prescriptpart i
+ withpostscript postscriptpart i
+ elseif filled i :
+ contour pathpart i rnd s
+ withpen penpart i
+ withcolor colorpart i
+ withprescript prescriptpart i
+ withpostscript postscriptpart i
+ else :
+ also i
+ fi
+ ;
+ endfor ;
+ currentpicture
+enddef ;
+
+primarydef p randomizedcontrols s = (
+ if path p :
+ mfun_randomized_path(p,s)
+ elseif picture p :
+ mfun_randomized_picture(p,s)(randomizedcontrols)
+ else :
+ p randomized s
+ fi
+) enddef ;
+
+primarydef p randomized s = (
+ if path p :
+ for i=0 upto length(p)-1 :
+ ((point i of p) randomshifted s) .. controls
+ ((postcontrol i of p) randomshifted s) and
+ ((precontrol (i+1) of p) randomshifted s) ..
+ endfor
+ if cycle p :
+ cycle
+ else :
+ ((point length(p) of p) randomshifted s)
+ fi
+ elseif pair p :
+ p randomshifted s
+ elseif cmykcolor p :
+ if cmykcolor s :
+ ((uniformdeviate cyanpart s) * cyanpart p,
+ (uniformdeviate magentapart s) * magentapart p,
+ (uniformdeviate yellowpart s) * yellowpart p,
+ (uniformdeviate blackpart s) * blackpart p)
+ elseif pair s :
+ ((xpart s + (uniformdeviate (ypart s - xpart s))) * p)
+ else :
+ ((uniformdeviate s) * p)
+ fi
+ elseif rgbcolor p :
+ if rgbcolor s :
+ ((uniformdeviate redpart s) * redpart p,
+ (uniformdeviate greenpart s) * greenpart p,
+ (uniformdeviate bluepart s) * bluepart p)
+ elseif pair s :
+ ((xpart s + (uniformdeviate (ypart s - xpart s))) * p)
+ else :
+ ((uniformdeviate s) * p)
+ fi
+ elseif color p :
+ if color s :
+ ((uniformdeviate greypart s) * greypart p)
+ elseif pair s :
+ ((xpart s + (uniformdeviate (ypart s - xpart s))) * p)
+ else :
+ ((uniformdeviate s) * p)
+ fi
+ elseif string p :
+ (resolvedcolor(p)) randomized s
+ elseif picture p :
+ mfun_randomized_picture(p,s)(randomized)
+ else :
+ % p - s/2 + uniformdeviate s % would have been better but we want to be positive
+ p + uniformdeviate s
+ fi
+) enddef ;
+
+permanent superellipsed, squeezed, randomshifted, randomized, randomizedcontrols ;
+
+%D Not perfect (alternative for interpath)
+
+vardef interpolated(expr s, p, q) =
+ save m ; numeric m ;
+ m := max(length(p),length(q)) ;
+ if path p :
+ for i=0 upto m-1 :
+ s[point (i /m) along p,point (i /m) along q] .. controls
+ s[postcontrol (i /m) along p,postcontrol (i /m) along q] and
+ s[precontrol ((i+1)/m) along p,precontrol ((i+1)/m) along q] ..
+ endfor
+ if cycle p :
+ cycle
+ else :
+ s[point infinity of p,point infinity of q]
+ fi
+ else :
+ a[p,q]
+ fi
+enddef ;
+
+permanent interpolated ;
+
+%D Interesting too:
+
+% primarydef p paralleled d = (
+% p shifted if d < 0 : - fi ((point abs(d) on (p rotatedaround(point 0 of p,90))) - point 0 of p)
+% ) enddef ;
+%
+% primarydef p paralleled d = (
+% p shifted ((d*unitvector(direction 0 of p) - point 0 of p) rotated 90)
+% ) enddef ;
+%
+% Alan came up with an improved version and stepwise we ended up with (or
+% might up with a variant of):
+
+def istextext(expr p) =
+ (picture p and ((substring(0,3) of prescriptpart p) = "tx_"))
+enddef ;
+
+vardef perpendicular expr t of p =
+ unitvector((direction t of p) rotated 90)
+enddef ;
+
+primarydef p paralleled d = (
+ if path p :
+ begingroup ;
+ save dp ; pair dp ;
+ for i=0 upto length p if cycle p : -1 fi :
+ hide(dp := d * perpendicular i of p)
+ if i > 0 : .. fi
+ (point i of p + dp)
+ if i < length p :
+ .. controls (postcontrol i of p + dp) and
+ (precontrol (i+1) of p + dp)
+ fi
+ endfor
+ if cycle p : .. cycle fi
+ endgroup
+ elseif picture p :
+ image(
+ for i within p :
+ draw (pathpart i)
+ if not istextext(i) : % dirty trick
+ paralleled d
+ fi
+ mfun_decoration_i i ;
+ endfor ;
+ )
+ elseif pair p :
+ p
+ fi
+) enddef ;
+
+vardef punked primary p =
+ point 0 of p for i=1 upto length(p)-1 : -- point i of p endfor
+ if cycle p : -- cycle else : -- point length(p) of p fi
+enddef ;
+
+vardef curved primary p =
+ point 0 of p for i=1 upto length(p)-1 : .. point i of p endfor
+ if cycle p : .. cycle else : .. point length(p) of p fi
+enddef ;
+
+primarydef p blownup s =
+ begingroup
+ save temp_p ; path temp_p ;
+ temp_p := p xysized (bbwidth(p)+2(xpart paired(s)),bbheight(p)+2(ypart paired(s))) ;
+ (temp_p shifted (center p - center temp_p))
+ endgroup
+enddef ;
+
+permanent perpendicular, istextext, paralleled, punked, curved, blownup ;
+
+%D Rather fundamental.
+
+% not yet ok
+
+vardef mfun_left_right_path(expr p, l) = % used in s-pre-19
+ save q, r, t, b ; path q, r ; pair t, b ;
+ t := (ulcorner p -- urcorner p) intersection_point p ;
+ b := (llcorner p -- lrcorner p) intersection_point p ;
+ r := if xpart directionpoint t of p < 0 : reverse p else : p fi ; % r is needed, else problems when reverse is fed
+ q := r cutbefore if l: t else: b fi ;
+ q := q if xpart point 0 of r > 0 : & r fi cutafter if l: b else: t fi ;
+ q
+enddef ;
+
+vardef leftpath expr p = mfun_left_right_path(p,true ) enddef ;
+vardef rightpath expr p = mfun_left_right_path(p,false) enddef ;
+
+permanent leftpath, rightpath ;
+
+%D Drawoptions
+
+def saveoptions =
+ save base_draw_options ; def base_draw_options = enddef ;
+enddef ;
+
+permanent saveoptions ;
+
+%D Tracing. (not yet in lexer)
+
+let normaldraw = draw ;
+let normalfill = fill ;
+
+% bugged in mplib so ...
+
+def normalfill expr c = addto currentpicture contour c base_draw_options enddef ;
+def normaldraw expr p = addto currentpicture if picture p: also p else: doublepath p withpen currentpen fi base_draw_options enddef ;
+
+def drawlineoptions (text t) = def mfun_opt_lin = t enddef ; enddef ;
+def drawpointoptions (text t) = def mfun_opt_pnt = t enddef ; enddef ;
+def drawcontroloptions(text t) = def mfun_opt_ctr = t enddef ; enddef ;
+def drawlabeloptions (text t) = def mfun_opt_lab = t enddef ; enddef ;
+def draworiginoptions (text t) = def mfun_opt_ori = t enddef ; enddef ;
+def drawboundoptions (text t) = def mfun_opt_bnd = t enddef ; enddef ;
+def drawpathoptions (text t) = def mfun_opt_pth = t enddef ; enddef ;
+
+numeric drawoptionsfactor ; drawoptionsfactor := pt ;
+
+def resetdrawoptions =
+ drawlineoptions (withpen pencircle scaled 1.0 drawoptionsfactor withcolor .5white) ;
+ drawpointoptions (withpen pencircle scaled 4.0 drawoptionsfactor withcolor black) ;
+ drawcontroloptions(withpen pencircle scaled 2.5 drawoptionsfactor withcolor black) ;
+ drawlabeloptions () ;
+ draworiginoptions (withpen pencircle scaled 1.0 drawoptionsfactor withcolor .5white) ;
+ drawboundoptions (dashed evenly mfun_opt_ori) ;
+ drawpathoptions (withpen pencircle scaled 5.0 drawoptionsfactor withcolor .8white) ;
+enddef ;
+
+resetdrawoptions ;
+
+%D Path.
+
+def drawpath expr p =
+ normaldraw p mfun_opt_pth
+enddef ;
+
+permanent
+ drawlineoptions, drawpointoptions, drawcontroloptions, drawlabeloptions, draworiginoptions,
+ drawboundoptions, drawpathoptions, drawpath, normaldraw ;
+
+%D Arrow.
+
+newinternal ahvariant ; ahvariant := 0 ;
+newinternal ahdimple ; ahdimple := 1/5 ;
+newinternal ahscale ; ahscale := 3/4 ;
+
+permanent ahvariant, ahdimple, ahscale ;
+
+vardef arrowhead expr p =
+ save q, e, r ;
+ pair e ; e = point length p of p ;
+ path q ; q = gobble(p shifted -e cutafter makepath(pencircle scaled (2ahlength))) cuttings ;
+ if ahvariant > 0:
+ path r ; r = gobble(p shifted -e cutafter makepath(pencircle scaled ((1-ahdimple)*2ahlength))) cuttings ;
+ fi
+ (q rotated (ahangle/2) & reverse q rotated -(ahangle/2)
+ if ahvariant = 1 :
+ -- point 0 of r --
+ elseif ahvariant = 2 :
+ ... point 0 of r ...
+ else :
+ --
+ fi
+ cycle
+ ) shifted e
+enddef ;
+
+vardef drawarrowpath expr p =
+ save autoarrows ; boolean autoarrows ; autoarrows := true ;
+ drawarrow p mfun_opt_pth
+enddef ;
+
+def midarrowhead expr p =
+ arrowhead p cutafter (point length(p cutafter point .5 along p) + ahlength on p)
+enddef ;
+
+vardef arrowheadonpath (expr p, s) =
+ save autoarrows ; boolean autoarrows ;
+ autoarrows := true ;
+ set_ahlength(scaled ahfactor) ; % added
+ arrowhead p if s < 1 : cutafter (point (s*arclength(p) + (ahlength/2)) on p) fi
+enddef ;
+
+def resetarrows =
+ hide (
+ ahlength := 4 ;
+ ahangle := 45 ;
+ ahvariant := 0 ;
+ ahdimple := 1/5 ;
+ ahscale := 3/4 ;
+)
+enddef ;
+
+permanent arrowhead, drawarrowpath, midarrowhead, arrowheadonpath ;
+
+%D Points.
+
+vardef dotlabel@#(expr s,z) text t =
+ label@#(s,z) t ;
+ interim linecap := rounded ;
+ normaldraw z withpen pencircle scaled dotlabeldiam t ;
+enddef ;
+
+def drawpoint expr c =
+ if string c :
+ string temp_c ;
+ temp_c := "(" & c & ")" ;
+ dotlabel.urt(temp_c, scantokens temp_c) ;
+ drawdot scantokens temp_c
+ else :
+ dotlabel.urt("(" & decimal xpart c & "," & decimal ypart c & ")", c) ;
+ drawdot c
+ fi mfun_opt_pnt
+enddef ;
+
+%D PathPoints.
+
+def drawpoints expr c = path temp_c ; temp_c := c ; mfun_draw_points enddef ;
+def drawcontrolpoints expr c = path temp_c ; temp_c := c ; mfun_draw_controlpoints enddef ;
+def drawcontrollines expr c = path temp_c ; temp_c := c ; mfun_draw_controllines enddef ;
+def drawpointlabels expr c = path temp_c ; temp_c := c ; mfun_draw_pointlabels enddef ;
+
+def mfun_draw_points text t =
+ for i=0 upto length(temp_c) if cycle temp_c : -1 fi :
+ normaldraw point i of temp_c mfun_opt_pnt t ;
+ endfor ;
+enddef;
+
+def mfun_draw_controlpoints text t =
+ for i=0 upto length(temp_c) :
+ normaldraw precontrol i of temp_c mfun_opt_ctr t ;
+ normaldraw postcontrol i of temp_c mfun_opt_ctr t ;
+ endfor ;
+enddef;
+
+def mfun_draw_controllines text t =
+ for i=0 upto length(temp_c) :
+ normaldraw point i of temp_c -- precontrol i of temp_c mfun_opt_lin t ;
+ normaldraw point i of temp_c -- postcontrol i of temp_c mfun_opt_lin t ;
+ endfor ;
+enddef;
+
+boolean swappointlabels ; swappointlabels := false ;
+numeric pointlabelscale ; pointlabelscale := 0 ;
+string pointlabelfont ; pointlabelfont := "" ;
+
+def mfun_draw_pointlabels text asked_options =
+ for i=0 upto length(temp_c) if cycle temp_c : -1 fi :
+ pair temp_u ; temp_u := unitvector(direction i of temp_c) rotated if swappointlabels : - fi 90 ;
+ pair temp_p ; temp_p := (point i of temp_c) ;
+ begingroup ;
+ if pointlabelscale > 0 :
+ save defaultscale ; numeric defaultscale ;
+ defaultscale := pointlabelscale ;
+ fi ;
+ if pointlabelfont <> "" :
+ save defaultfont ; string defaultfont ;
+ defaultfont := pointlabelfont ;
+ fi ;
+ temp_u := 10 * drawoptionsfactor * defaultscale * temp_u ;
+ normaldraw thelabel ( decimal i, temp_p shifted if cycle temp_c and (i=0) : - fi temp_u ) mfun_opt_lab asked_options ;
+ endgroup ;
+ endfor ;
+enddef;
+
+%D Bounding box.
+
+def drawboundingbox expr p =
+ normaldraw boundingbox p mfun_opt_bnd
+enddef ;
+
+%D Origin.
+
+numeric originlength ; originlength := .5cm ;
+
+def draworigin text t =
+ normaldraw (origin shifted (0, originlength) -- origin shifted (0,-originlength)) mfun_opt_ori t ;
+ normaldraw (origin shifted ( originlength,0) -- origin shifted (-originlength,0)) mfun_opt_ori t ;
+enddef;
+
+permanent dotlabel, swappointlabels, pointlabelscale, pointlabelfont ;
+permanent drawboundingbox, drawpoints, drawcontrolpoints, drawcontrollines, drawpointlabels, draworigin ;
+
+%D Axis.
+
+numeric tickstep ; tickstep := 5mm ;
+numeric ticklength ; ticklength := 2mm ;
+
+def drawxticks expr c = path temp_c ; temp_c := c ; mfun_draw_xticks enddef ;
+def drawyticks expr c = path temp_c ; temp_c := c ; mfun_draw_yticks enddef ;
+def drawticks expr c = path temp_c ; temp_c := c ; mfun_draw_ticks enddef ;
+
+% Adding eps prevents disappearance due to rounding errors.
+
+def mfun_draw_xticks text t =
+ for i=0 step -tickstep until xpart llcorner temp_c - eps :
+ if (i<=xpart lrcorner temp_c) :
+ normaldraw (i,-ticklength)--(i,ticklength) mfun_opt_ori t ;
+ fi ;
+ endfor ;
+ for i=0 step tickstep until xpart lrcorner temp_c + eps :
+ if (i>=xpart llcorner temp_c) :
+ normaldraw (i,-ticklength)--(i,ticklength) mfun_opt_ori t ;
+ fi ;
+ endfor ;
+ normaldraw (llcorner temp_c -- ulcorner temp_c) shifted (-xpart llcorner temp_c,0) mfun_opt_ori t ;
+enddef ;
+
+def mfun_draw_yticks text t =
+ for i=0 step -tickstep until ypart llcorner temp_c - eps :
+ if (i<=ypart ulcorner temp_c) :
+ normaldraw (-ticklength,i)--(ticklength,i) mfun_opt_ori t ;
+ fi ;
+ endfor ;
+ for i=0 step tickstep until ypart ulcorner temp_c + eps :
+ if (i>=ypart llcorner temp_c) :
+ normaldraw (-ticklength,i)--(ticklength,i) mfun_opt_ori t ;
+ fi ;
+ endfor ;
+ normaldraw (llcorner temp_c -- lrcorner temp_c) shifted (0,-ypart llcorner temp_c) mfun_opt_ori t ;
+enddef ;
+
+def mfun_draw_ticks text t =
+ drawxticks temp_c t ;
+ drawyticks temp_c t ;
+enddef ;
+
+%D All of it except axis.
+
+def drawwholepath expr p =
+ draworigin ;
+ drawpath p ;
+ drawcontrollines p ;
+ drawcontrolpoints p ;
+ drawpoints p ;
+ drawboundingbox p ;
+ drawpointlabels p ;
+enddef ;
+
+def drawpathonly expr p =
+ drawpath p ;
+ drawcontrollines p ;
+ drawcontrolpoints p ;
+ drawpoints p ;
+ drawpointlabels p ;
+enddef ;
+
+%D Tracing.
+
+def visualizeddraw expr c =
+ if picture c : normaldraw c else : path temp_c ; temp_c := c ; do_visualizeddraw fi
+enddef ;
+
+def visualizedfill expr c =
+ if picture c : normalfill c else : path temp_c ; temp_c := c ; do_visualizedfill fi
+enddef ;
+
+def do_visualizeddraw text t =
+ draworigin ;
+ drawpath temp_c t ;
+ drawcontrollines temp_c ;
+ drawcontrolpoints temp_c ;
+ drawpoints temp_c ;
+ drawboundingbox temp_c ;
+ drawpointlabels temp_c ;
+enddef ;
+
+def do_visualizedfill text t =
+ if cycle temp_c : normalfill temp_c t fi ;
+ draworigin ;
+ drawcontrollines temp_c ;
+ drawcontrolpoints temp_c ;
+ drawpoints temp_c ;
+ drawboundingbox temp_c ;
+ drawpointlabels temp_c ;
+enddef ;
+
+def detaileddraw expr c =
+ if picture c : normaldraw c else : path temp_c ; temp_c := c ; do_detaileddraw fi
+enddef ;
+
+def do_detaileddraw text t =
+ drawpath temp_c t ;
+ drawcontrollines temp_c ;
+ drawcontrolpoints temp_c ;
+ drawpoints temp_c ;
+ % % for labels we need an third run (as the second will mark the numbers); i could preroll them
+ % % but then the hash needs to handle that as well (as now we keep numbering)
+ % drawpointlabels temp_c ;
+enddef ;
+
+def visualizepaths =
+ let fill = visualizedfill ;
+ let draw = visualizeddraw ;
+enddef ;
+
+def detailpaths =
+ let draw = detaileddraw ;
+enddef ;
+
+def naturalizepaths =
+ let fill = normalfill ;
+ let draw = normaldraw ;
+enddef ;
+
+extra_endfig := extra_endfig & " naturalizepaths ; " ;
+
+permanent
+ visualizeddraw, detaileddraw, visualizedfill,
+ visualizepaths, detailpaths, naturalizepaths ;
+
+%D Nice tracer:
+
+def drawboundary primary p =
+ draw p dashed evenly withcolor white ;
+ draw p dashed oddly withcolor black ;
+ draw (- llcorner p) withpen pencircle scaled 3 withcolor white ;
+ draw (- llcorner p) withpen pencircle scaled 1.5 withcolor black ;
+enddef ;
+
+permanent drawboundary ;
+
+%D Also handy:
+
+extra_beginfig := extra_beginfig & " truecorners := 0 ; " ; % restores
+extra_beginfig := extra_beginfig & " miterlimit := 10 ; " ; % restores
+extra_beginfig := extra_beginfig & " linejoin := rounded ; " ; % restores
+extra_beginfig := extra_beginfig & " linecap := rounded ; " ; % restores
+
+%D Normally, arrowheads don't scale well. So we provide a hack.
+
+boolean autoarrows ; autoarrows := false ; % todo: newinternal boolean autoarrows ;
+numeric ahfactor ; ahfactor := 2.5 ; % todo: newinternal ahfactor ;
+
+permanent ahfactor, ahlength, autoarrows ;
+
+def set_ahlength (text t) = % called to often
+ % ahlength := (ahfactor*pen_size(base_draw_options t)) ; % base_draw_options added
+ % problem: base_draw_options can contain color so a no-go, we could apply the transform
+ % but i need to figure out the best way (fakepicture and take components).
+ ahlength := (ahfactor*pen_size(t)) ;
+enddef ;
+
+vardef pen_size (text t) =
+ save p ; picture p ; p := nullpicture ;
+ addto p doublepath (top origin -- bot origin) t ;
+ (ypart urcorner p - ypart lrcorner p)
+enddef ;
+
+%D The next two macros are adapted versions of plain
+%D \METAPOST\ definitions.
+
+vardef arrowpath expr p = % patch by Peter Rolf: supports squared pen and shifting (hh: maybe just use center of head as first)
+ (p cutafter makepath(pencircle
+ scaled (if ahvariant > 0 : (1-ahdimple)* fi 2ahlength*cosd(ahangle/2))
+ shifted point length p of p
+ ))
+enddef;
+
+permanent arrowpath ;
+
+% New experimental extension: also handling pictures:
+%
+% drawarrow fullsquare scaled 2cm withcolor green ;
+% drawarrow fullcircle scaled 3cm withcolor green ;
+% drawarrow image (
+% draw fullsquare scaled 4cm withcolor red ;
+% draw fullcircle scaled 5cm withcolor blue ;
+% ) ;
+% currentpicture := currentpicture shifted (-bbwidth(currentpicture)-1cm,0) ;
+% drawdblarrow fullsquare scaled 2cm withcolor green ;
+% drawdblarrow fullcircle scaled 3cm withcolor green ;
+% drawdblarrow image (
+% draw fullsquare scaled 4cm withcolor red ;
+% draw fullcircle scaled 5cm withcolor blue ;
+% ) ;
+
+vardef stroked_paths(expr p) =
+ save n ; numeric n ; n := 0 ;
+ for i within p :
+ if stroked i :
+ n := n + 1 ;
+ fi
+ endfor ;
+ n
+enddef ;
+
+def mfun_decoration_i expr i =
+ withpen penpart i
+ withcolor colorpart i
+ withprescript prescriptpart i
+ withpostscript postscriptpart i
+enddef ;
+
+% We could collapse all in one helper but in context we nowaways don't want
+% the added obscurity. Tokens come cheap.
+
+numeric mfun_arrow_snippets ;
+numeric mfun_arrow_count ;
+
+def drawarrow expr p =
+ begingroup ;
+ save mfun_arrow_path ;
+ path mfun_arrow_path ;
+ if path p :
+ mfun_arrow_path := p ;
+ expandafter mfun_draw_arrow_path
+ elseif picture p :
+ save mfun_arrow_picture ;
+ picture mfun_arrow_picture ;
+ mfun_arrow_picture := p ;
+ expandafter mfun_draw_arrow_picture
+ else :
+ expandafter mfun_draw_arrow_nothing
+ fi
+enddef ;
+
+def drawdblarrow expr p =
+ begingroup ;
+ save mfun_arrow_path ;
+ path mfun_arrow_path ;
+ if path p :
+ mfun_arrow_path := p ;
+ expandafter mfun_draw_arrow_path_double
+ elseif picture p :
+ save mfun_arrow_picture ;
+ picture mfun_arrow_picture ;
+ mfun_arrow_picture := p ;
+ expandafter mfun_draw_arrow_picture_double
+ else :
+ expandafter mfun_draw_arrow_nothing
+ fi
+enddef ;
+
+def mfun_draw_arrow_nothing text t =
+enddef ;
+
+% The path is shortened so that the arrow head extends it to the original
+% length. In case of a double arrow the path gets shortened twice.
+
+def mfun_draw_arrow_path text t =
+ if autoarrows :
+ set_ahlength(t) ;
+ fi
+ draw arrowpath mfun_arrow_path t ;
+ fillup arrowhead mfun_arrow_path t ;
+ endgroup ;
+enddef ;
+
+def mfun_draw_arrow_path_double text t =
+ if autoarrows :
+ set_ahlength(t) ;
+ fi
+ draw arrowpath (reverse arrowpath mfun_arrow_path) t ;
+ fillup arrowhead mfun_arrow_path t ;
+ fillup arrowhead reverse mfun_arrow_path t ;
+ endgroup ;
+enddef ;
+
+% The picture variant is not treating each path but only the first and
+% last path. This can be somewhat counterintuitive but is needed for Alan's
+% macros. So here the last and in case of a double path first paths in a
+% picture get the shortening.
+
+def mfun_with_arrow_picture (text t) =
+ mfun_arrow_count := 0 ;
+ mfun_arrow_snippets := stroked_paths(mfun_arrow_picture) ;
+ for i within mfun_arrow_picture :
+ if istextext(i) :
+ draw i
+ else :
+ mfun_arrow_count := mfun_arrow_count + 1 ;
+ mfun_arrow_path := pathpart i ;
+ t
+ fi ;
+ endfor ;
+enddef ;
+
+def mfun_draw_arrow_picture text t =
+ if autoarrows :
+ set_ahlength(t) ;
+ fi
+ mfun_with_arrow_picture (
+ if mfun_arrow_count = mfun_arrow_snippets :
+ draw arrowpath mfun_arrow_path mfun_decoration_i i t ;
+ fillup arrowhead mfun_arrow_path mfun_decoration_i i t ;
+ else :
+ draw mfun_arrow_path mfun_decoration_i i t ;
+ fi ;
+ )
+ endgroup ;
+enddef ;
+
+def mfun_draw_arrow_picture_double text t =
+ if autoarrows :
+ set_ahlength(t) ;
+ fi
+ mfun_with_arrow_picture (
+ draw
+ if mfun_arrow_count = 1 :
+ arrowpath reverse
+ elseif mfun_arrow_count = mfun_arrow_snippets :
+ arrowpath
+ fi
+ mfun_arrow_path mfun_decoration_i i t ;
+ if mfun_arrow_count = 1 :
+ fillup arrowhead reverse mfun_arrow_path mfun_decoration_i i t ;
+ fi
+ if mfun_arrow_count = mfun_arrow_snippets :
+ fillup arrowhead mfun_arrow_path mfun_decoration_i i t ;
+ fi
+ )
+ endgroup ;
+enddef ;
+
+%D Some more arrow magic, by Alan:
+
+let drawdoublearrow = drawdblarrow ;
+
+def drawdoublearrows expr p =
+ begingroup ;
+ save mfun_arrow_path ;
+ path mfun_arrow_path ;
+ save mfun_arrow_path_parallel ;
+ path mfun_arrow_path_parallel ;
+ if path p :
+ mfun_arrow_path := p ;
+ expandafter mfun_draw_arrow_paths
+ elseif picture p :
+ save mfun_arrow_picture ;
+ picture mfun_arrow_picture ;
+ mfun_arrow_picture := p ;
+ expandafter mfun_draw_arrow_pictures
+ else :
+ expandafter mfun_draw_arrow_nothing
+ fi
+enddef ;
+
+def mfun_draw_arrow_paths text t =
+ if autoarrows :
+ set_ahlength(t) ;
+ fi
+ save d ; d := ahscale*ahlength*sind(ahangle/2) ;
+ mfun_arrow_path_parallel := mfun_arrow_path paralleled d ;
+ draw arrowpath mfun_arrow_path_parallel t ;
+ fillup arrowhead mfun_arrow_path_parallel t ;
+ mfun_arrow_path_parallel := (reverse mfun_arrow_path) paralleled d ;
+ draw arrowpath mfun_arrow_path_parallel t ;
+ fillup arrowhead mfun_arrow_path_parallel t ;
+ endgroup ;
+enddef ;
+
+def mfun_draw_arrow_pictures text t =
+ if autoarrows :
+ set_ahlength(t) ;
+ fi
+ save d ; d := ahscale*ahlength*sind(ahangle/2) ;
+ mfun_with_arrow_picture(
+ if mfun_arrow_count = 1 :
+ draw (mfun_arrow_path paralleled d) mfun_decoration_i i t ;
+ mfun_arrow_path_parallel := (reverse mfun_arrow_path) paralleled d ;
+ draw arrowpath mfun_arrow_path_parallel mfun_decoration_i i t ;
+ fillup arrowhead mfun_arrow_path_parallel mfun_decoration_i i t ;
+ elseif mfun_arrow_count = mfun_arrow_snippets :
+ draw ((reverse mfun_arrow_path) paralleled d) mfun_decoration_i i t ;
+ mfun_arrow_path_parallel := mfun_arrow_path paralleled d ;
+ draw arrowpath mfun_arrow_path_parallel mfun_decoration_i i t ;
+ fillup arrowhead mfun_arrow_path_parallel mfun_decoration_i i t ;
+ else :
+ draw ( mfun_arrow_path paralleled d) mfun_decoration_i i t ;
+ draw ((reverse mfun_arrow_path) paralleled d) mfun_decoration_i i t ;
+ fi
+ )
+ endgroup ;
+enddef ;
+
+%D Handy too ......
+
+vardef pointarrow (expr pat, loc, len, off) =
+ save l, r, s, t ; path l, r ; numeric s ; pair t ;
+ t := if pair loc : loc else : point loc along pat fi ;
+ s := len/2 - off ; if s<=0 : s := 0 elseif s>len : s := len fi ;
+ r := pat cutbefore t ;
+ r := (r cutafter point (arctime s of r) of r) ;
+ s := len/2 + off ; if s<=0 : s := 0 elseif s>len : s := len fi ;
+ l := reverse (pat cutafter t) ;
+ l := (reverse (l cutafter point (arctime s of l) of l)) ;
+ (l..r)
+enddef ;
+
+def rightarrow (expr pat,tim,len) = pointarrow(pat,tim,len,-len) enddef ;
+def leftarrow (expr pat,tim,len) = pointarrow(pat,tim,len,+len) enddef ;
+def centerarrow (expr pat,tim,len) = pointarrow(pat,tim,len, 0) enddef ;
+
+permanent drawarrow, drawdblarrow, drawdoublearrows, drawdoublearrow, pointarrow, rightarrow, leftarrow, centerarrow ;
+
+%D The \type {along} and \type {on} operators can be used as follows:
+%D
+%D \starttyping
+%D drawdot point .5 along somepath ;
+%D drawdot point 3cm on somepath ;
+%D \stoptyping
+%D
+%D The number denotes a percentage (fraction).
+
+primarydef pct along pat = % also negative
+ (arctime (pct * (arclength pat)) of pat) of pat
+enddef ;
+
+primarydef len on pat = % no outer ( ) .. somehow fails
+ (arctime if len>=0 : len else : (arclength(pat)+len) fi of pat) of pat
+enddef ;
+
+% this cuts of a piece from both ends
+
+tertiarydef pat cutends len =
+ begingroup
+ save tap ; path tap ;
+ tap := pat cutbefore (point (xpart paired(len)) on pat) ;
+ (tap cutafter (point -(ypart paired(len)) on tap))
+ endgroup
+enddef ;
+
+permanent along, on, cutends ;
+
+%D To be documented.
+
+path freesquare ; freesquare := (
+ (-1,0) -- (-1,-1) -- (0,-1) -- (+1,-1) --
+ (+1,0) -- (+1,+1) -- (0,+1) -- (-1,+1) -- cycle
+) scaled .5 ;
+
+numeric freelabeloffset ; freelabeloffset := 3pt ;
+numeric freedotlabelsize ; freedotlabelsize := 3pt ;
+
+vardef thefreelabel (expr asked_text, asked_location, asked_origin) =
+ save s, p, q, l ; picture s ; path p, q ; pair l ;
+ interim labeloffset := freelabeloffset ;
+ s := if string asked_text : thelabel(asked_text,asked_location) else : asked_text shifted -center asked_text shifted asked_location fi ;
+ setbounds s to boundingbox s enlarged freelabeloffset ;
+ p := fullcircle scaled (2*length(asked_location-asked_origin)) shifted asked_origin ;
+ q := freesquare xyscaled (urcorner s - llcorner s) ;
+ l := point xpart (p intersectiontimes (asked_origin--asked_location shifted (asked_location-asked_origin))) of q ;
+ setbounds s to boundingbox s enlarged -freelabeloffset ; % new
+ % draw boundingbox s shifted -l withpen pencircle scaled .5pt withcolor red ;
+ (s shifted -l)
+enddef ;
+
+vardef freelabel (expr asked_text, asked_location, asked_origin) =
+ draw thefreelabel(asked_text,asked_location,asked_origin) ;
+enddef ;
+
+vardef freedotlabel (expr asked_text, loc, asked_origin) =
+ interim linecap := rounded ;
+ draw asked_location withpen pencircle scaled freedotlabelsize ;
+ draw thefreelabel(asked_text,asked_location,asked_origin) ;
+enddef ;
+
+immutable freesquare ;
+permanent freelabeloffset, freedotlabelsize, thefreelabel, freelabel, freedotlabel ;
+
+%D \starttyping
+%D drawarrow anglebetween(line_a,line_b,somelabel) ;
+%D \stoptyping
+
+newinternal angleoffset ; angleoffset := 0pt ;
+newinternal anglelength ; anglelength := 20pt ;
+newinternal anglemethod ; anglemethod := 1 ;
+
+vardef anglebetween (expr a, b, s) = % path path string
+ save pointa, pointb, common, middle, offset ;
+ pair pointa, pointb, common, middle, offset ;
+ save curve ; path curve ;
+ save where ; numeric where ;
+ if round point 0 of a = round point 0 of b :
+ common := point 0 of a ;
+ else :
+ common := a intersectionpoint b ;
+ fi ;
+ pointa := point anglelength on a ;
+ pointb := point anglelength on b ;
+ where := turningnumber (common--pointa--pointb--cycle) ;
+ middle := (reverse(common--pointa) rotatedaround (pointa,-where*90))
+ intersection_point
+ (reverse(common--pointb) rotatedaround (pointb, where*90)) ;
+ if not intersection_found :
+ middle := point .5 along
+ ((reverse(common--pointa) rotatedaround (pointa,-where*90)) --
+ ( (common--pointb) rotatedaround (pointb, where*90))) ;
+ fi ;
+ if anglemethod = 0 :
+ curve := pointa{unitvector(middle-pointa)}.. pointb;
+ middle := point .5 along curve ;
+ curve := common ;
+ elseif anglemethod = 1 :
+ curve := pointa{unitvector(middle-pointa)}.. pointb;
+ middle := point .5 along curve ;
+ elseif anglemethod = 2 :
+ middle := common rotatedaround(.5[pointa,pointb],180) ;
+ curve := pointa--middle--pointb ;
+ elseif anglemethod = 3 :
+ curve := pointa--middle--pointb ;
+ elseif anglemethod = 4 :
+ curve := pointa..controls middle..pointb ;
+ middle := point .5 along curve ;
+ fi ;
+ draw thefreelabel(s, middle, common) ; % withcolor black ;
+ curve
+enddef ;
+
+permanent anglebetween, angleoffset, anglelength, anglemethod ;
+
+% Stack
+
+picture mfun_current_picture_stack[] ;
+numeric mfun_current_picture_depth ;
+
+mfun_current_picture_depth := 0 ;
+
+def pushcurrentpicture =
+ mfun_current_picture_depth := mfun_current_picture_depth + 1 ;
+ mfun_current_picture_stack[mfun_current_picture_depth] := currentpicture ;
+ currentpicture := nullpicture ;
+enddef ;
+
+def popcurrentpicture text t = % optional text
+ if mfun_current_picture_depth > 0 :
+ addto mfun_current_picture_stack[mfun_current_picture_depth] also currentpicture t ;
+ currentpicture := mfun_current_picture_stack[mfun_current_picture_depth] ;
+ mfun_current_picture_stack[mfun_current_picture_depth] := nullpicture ;
+ mfun_current_picture_depth := mfun_current_picture_depth - 1 ;
+ fi ;
+enddef ;
+
+permanent pushcurrentpicture, popcurrentpicture ;
+
+% penpoint (i,2) of somepath -> inner / outer point
+
+vardef penpoint expr pnt of p =
+ save n, d ; numeric n, d ;
+ (n,d) = if pair pnt : pnt else : (pnt,1) fi ;
+ (point n of p shifted ((penoffset direction n of p of currentpen) scaled d))
+enddef ;
+
+permanent penpoint ;
+
+%D colorcircle(size, red, green, blue) ;
+
+vardef colorcircle (expr size, red, green, blue) = % might move
+ save r, g, b, c, m, y, w ; save radius ;
+ path r, g, b, c, m, y, w ; numeric radius ;
+
+ radius := 5cm ; pickup pencircle scaled (radius/25) ;
+
+ transform t ; t := identity rotatedaround(origin,120) ;
+
+ r := fullcircle rotated 90 scaled radius shifted (0,radius/4) rotatedaround(origin,135) ;
+
+ b := r transformed t ; g := b transformed t ;
+
+ c := buildcycle(subpath(1,7) of g,subpath(1,7) of b) ;
+ y := c transformed t ; m := y transformed t ;
+
+ w := buildcycle(subpath(3,5) of r, subpath(3,5) of g,subpath(3,5) of b) ;
+
+ pushcurrentpicture ;
+
+ fill r withcolor red ;
+ fill g withcolor green ;
+ fill b withcolor blue ;
+ fill c withcolor white - red ;
+ fill m withcolor white - green ;
+ fill y withcolor white - blue ;
+ fill w withcolor white ;
+
+ for i = r,g,b,c,m,y : draw i withcolor .5white ; endfor ;
+
+ currentpicture := currentpicture xsized size ;
+
+ popcurrentpicture ;
+enddef ;
+
+% nice: currentpicture := inverted currentpicture ;
+
+primarydef p uncolored c = % not complete ... needs text and scripts and ...
+ if color p :
+ c - p
+ else :
+ image (
+ for i within p :
+ addto currentpicture
+ if stroked i or filled i :
+ if filled i :
+ contour
+ else :
+ doublepath
+ fi
+ pathpart i
+ dashed dashpart i withpen penpart i
+ else :
+ also i
+ fi
+ withcolor c-(redpart i, greenpart i, bluepart i) ;
+ endfor ;
+ )
+ fi
+enddef ;
+
+vardef inverted primary p =
+ p uncolored white
+enddef ;
+
+primarydef p softened c =
+ begingroup
+ save cc ; color cc ; cc := tripled(c) ;
+ if color p :
+ (redpart cc * redpart p,greenpart cc * greenpart p, bluepart cc * bluepart p)
+ else :
+ image (
+ for i within p :
+ addto currentpicture
+ if stroked i or filled i :
+ if filled i :
+ contour
+ else :
+ doublepath
+ fi
+ pathpart i
+ dashed dashpart i withpen penpart i
+ else :
+ also i
+ fi
+ withcolor (redpart cc * redpart i, greenpart cc * greenpart i, bluepart cc * bluepart i) ;
+ endfor ;
+ )
+ fi
+ endgroup
+enddef ;
+
+vardef grayed primary p =
+ if rgbcolor p :
+ tripled(.30redpart p+.59greenpart p+.11bluepart p)
+ elseif cmykcolor p :
+ tripled(.30*(1-cyanpart i)+.59*(1-magentapart i)+.11*(1-yellowpart i)+blackpart i)
+ elseif greycolor p :
+ p
+ elseif string p :
+ grayed resolvedcolor(p)
+ elseif picture p :
+ image (
+ for i within p :
+ addto currentpicture
+ if stroked i or filled i :
+ if filled i :
+ contour
+ else :
+ doublepath
+ fi
+ pathpart i
+ dashed dashpart i
+ withpen penpart i
+ else :
+ also i
+ fi
+ if unknown colorpart i :
+ % nothing
+ elseif rgbcolor colorpart i :
+ withcolor tripled(.30redpart i+.59greenpart i+.11bluepart i) ;
+ elseif cmykcolor colorpart i :
+ withcolor tripled(.30*(1-cyanpart i)+.59*(1-magentapart i)+.11*(1-yellowpart i)+blackpart i) ;
+ else :
+ withcolor colorpart i ;
+ fi
+ endfor ;
+ )
+ else :
+ p
+ fi
+enddef ;
+
+let greyed = grayed ;
+
+vardef hsvtorgb(expr h,s,v) =
+ save H, S, V, x ;
+ H = h mod 360 ;
+ S = if s < 0 : 0 elseif s > 1 : 1 else: s fi ;
+ V = if v < 0 : 0 elseif v > 1 : 1 else: v fi ;
+ x = 1 - abs(H mod 120 - 60)/60 ;
+ V * ( (1-S) * (1,1,1) + S *
+ if H < 60 : (1,x,0)
+ elseif H < 120 : (x,1,0)
+ elseif H < 180 : (0,1,x)
+ elseif H < 240 : (0,x,1)
+ elseif H < 300 : (x,0,1)
+ else : (1,0,x)
+ fi )
+enddef ;
+
+permanent colorcircle, uncolored, inverted, grayed, greyed, hsvtorgb ;
+
+% yes or no: "text" infont "cmr12" at 24pt ;
+
+% let normalinfont = infont ;
+%
+% numeric lastfontsize ; lastfontsize = fontsize defaultfont ;
+%
+% def infont primary name = % no vardef, no expr
+% hide(lastfontsize := fontsize name) % no ;
+% normalinfont name
+% enddef ;
+%
+% def scaledat expr size =
+% scaled (size/lastfontsize)
+% enddef ;
+%
+% let at = scaledat ;
+
+% like decimal
+
+def condition primary b = if b : "true" else : "false" fi enddef ;
+
+permanent condition ;
+
+% undocumented
+
+primarydef p stretched s =
+ begingroup
+ save pp ; path pp ; pp := p xyscaled s ;
+ (pp shifted ((point 0 of p) - (point 0 of pp)))
+ endgroup
+enddef ;
+
+primarydef p enlonged len =
+ begingroup
+ if len == 0 :
+ p
+ elseif pair p :
+ save q ; path q ; q := origin -- p ;
+ save al ; al := arclength(q) ;
+ if al > 0 :
+ point 1 of (q stretched ((al+len)/al))
+ else :
+ p
+ fi
+ else :
+ save al ; al := arclength(p) ;
+ if al > 0 :
+ p stretched ((al+len)/al)
+ else :
+ p
+ fi
+ fi
+ endgroup
+enddef ;
+
+% path p ; p := (0,0) -- (10cm,5cm) ;
+% drawarrow p withcolor red ;
+% drawarrow p shortened 1cm withcolor green ;
+
+% primarydef p shortened d =
+% reverse ( ( reverse (p enlonged -d) ) enlonged -d )
+% enddef ;
+
+primarydef p shortened d =
+ reverse ( ( reverse (p enlonged -xpart paired(d)) ) enlonged -ypart paired(d) )
+enddef ;
+
+% yes or no, untested -)
+
+def xshifted expr dx = shifted(dx,0) enddef ;
+def yshifted expr dy = shifted(0,dy) enddef ;
+
+
+permanent stretched, enlonged, shortened, xshifted, yshifted ;
+
+% also handy
+
+% right: str = readfrom ("abc" & ".def" ) ;
+% wrong: str = readfrom "abc" & ".def" ;
+
+% Every 62th read fails so we need to try again!
+
+% def readfile (expr name) =
+% if (readfrom (name) <> EOF) :
+% scantokens("input " & name & ";") ;
+% elseif (readfrom (name) <> EOF) :
+% scantokens("input " & name & ";") ;
+% fi ;
+% closefrom (name) ;
+% enddef ;
+%
+% this sometimes fails on the elseif, so :
+%
+
+def readfile (expr name) =
+ begingroup ; save ok ; boolean ok ;
+ if (readfrom (name) <> EOF) :
+ ok := false ;
+ elseif (readfrom (name) <> EOF) :
+ ok := false ;
+ else :
+ ok := true ;
+ fi ;
+ if not ok :
+ scantokens("input " & name & " ") ;
+ fi ;
+ closefrom (name) ;
+ endgroup ;
+enddef ;
+
+permanent readfile ; % todo: lmtx
+
+% permits redefinition of end in macro
+
+inner end ;
+
+% this will be redone (when needed) using scripts and backend handling
+
+let mfun_remap_colors_normalwithcolor = normalwithcolor ;
+
+def remapcolors =
+ def normalwithcolor primary c =
+ mfun_remap_colors_normalwithcolor remappedcolor(c)
+ enddef ;
+enddef ;
+
+def normalcolors =
+ let normalwithcolor = mfun_remap_colors_normalwithcolor ;
+enddef ;
+
+def resetcolormap =
+ color color_map[][][] ;
+ normalcolors ;
+enddef ;
+
+resetcolormap ;
+
+def r_color primary c = redpart c enddef ; % still neeeded?
+def g_color primary c = greenpart c enddef ; % still neeeded?
+def b_color primary c = bluepart c enddef ; % still neeeded?
+
+def remapcolor(expr old, new) =
+ color_map[redpart old][greenpart old][bluepart old] := new ;
+enddef ;
+
+def remappedcolor(expr c) =
+ if known color_map[redpart c][greenpart c][bluepart c] :
+ color_map[redpart c][greenpart c][bluepart c]
+ else :
+ c
+ fi
+enddef ;
+
+% Thanks to Jens-Uwe Morawski for pointing out that we need
+% to treat bounded and clipped components as local pictures.
+
+def recolor suffix p = p := mfun_repathed (0,p) enddef ;
+def refill suffix p = p := mfun_repathed (1,p) enddef ;
+def redraw suffix p = p := mfun_repathed (2,p) enddef ;
+def retext suffix p = p := mfun_repathed (3,p) enddef ;
+def untext suffix p = p := mfun_repathed (4,p) enddef ;
+
+% primarydef p recolored t = mfun_repathed(0,p) t enddef ;
+% primarydef p refilled t = mfun_repathed(1,p) t enddef ;
+% primarydef p redrawn t = mfun_repathed(2,p) t enddef ;
+% primarydef p retexted t = mfun_repathed(3,p) t enddef ;
+% primarydef p untexted t = mfun_repathed(4,p) t enddef ;
+
+color refillbackground ; refillbackground := (1,1,1) ;
+
+def restroke suffix p = p := mfun_repathed (21,p) enddef ; % keep attributes
+def reprocess suffix p = p := mfun_repathed (22,p) enddef ; % no attributes
+
+permanent recolor, refill, redraw, retext, untext, restroke, reprocess, refillbackground ;
+
+% also 11 and 12
+
+vardef mfun_repathed (expr mode, p) text t =
+ begingroup ;
+ if mode = 0 :
+ save normalwithcolor ;
+ remapcolors ;
+ fi ;
+ save temp_p, temp_q, temp_r, temp_f, temp_b ;
+ picture temp_p, temp_q, temp_r ; color temp_f ; path temp_b ;
+ temp_b := boundingbox p ;
+ temp_p := nullpicture ;
+ for i within p :
+ temp_f := (redpart i, greenpart i, bluepart i) ;
+ if bounded i :
+ temp_q := mfun_repathed(mode,i) t ;
+ setbounds temp_q to pathpart i ;
+ addto temp_p also temp_q ;
+ elseif clipped i :
+ temp_q := mfun_repathed(mode,i) t ;
+ clip temp_q to pathpart i ;
+ addto temp_p also temp_q ;
+ elseif stroked i :
+ if mode=21 :
+ temp_r := i ; % indirectness is needed
+ addto temp_p also image(scantokens(t & " pathpart temp_r")
+ dashed dashpart i withpen penpart i
+ withcolor temp_f ; ) ;
+ elseif mode=22 :
+ temp_r := i ; % indirectness is needed
+ addto temp_p also image(scantokens(t & " pathpart temp_r")) ;
+ else :
+ addto temp_p doublepath pathpart i
+ dashed dashpart i withpen penpart i
+ withcolor temp_f % (redpart i, greenpart i, bluepart i)
+ if mode = 2 :
+ t
+ fi ;
+ fi ;
+ elseif filled i :
+ if mode=11 :
+ temp_r := i ; % indirectness is needed
+ addto temp_p also image(scantokens(t & " pathpart temp_r")
+ withcolor temp_f ; ) ;
+ elseif mode=12 :
+ temp_r := i ; % indirectness is needed
+ addto temp_p also image(scantokens(t & " pathpart temp_r")) ;
+ else :
+ addto temp_p contour pathpart i
+ withcolor temp_f
+ if (mode=1) and (temp_f<>refillbackground) :
+ t
+ fi ;
+ fi ;
+ else :
+ addto temp_p also i ;
+ fi ;
+ endfor ;
+ setbounds temp_p to temp_b ;
+ temp_p
+ endgroup
+enddef ;
+
+% After a question of Denis on how to erase a z variable, Jacko
+% suggested to assign whatever to x and y. So a clearz
+% variable can be defined as:
+%
+% vardef clearz@# =
+% x@# := whatever ;
+% y@# := whatever ;
+% enddef ;
+%
+% but Jacko suggested a redefinition of clearxy:
+%
+% def clearxy text s =
+% clearxy_index_:=0;
+% for $:=s:
+% clearxy_index_:=clearxy_index_+1; endfor;
+% if clearxy_index_=0:
+% save x,y;
+% else:
+% forsuffixes $:=s: x$:=whatever; y$:=whatever; endfor;
+% fi
+% enddef;
+%
+% which i decided to simplify to:
+
+def clearxy text s =
+ if false for $ := s : or true endfor :
+ forsuffixes $ := s : x$ := whatever ; y$ := whatever ; endfor ;
+ else :
+ save x, y ;
+ fi
+enddef ;
+
+permanent clearxy ;
+
+% so now we can say: clearxy ; as well as clearxy 1, 2, 3 ;
+
+% show x0 ; z0 = (10,10) ;
+% show x0 ; x0 := whatever ; y0 := whatever ;
+% show x0 ; z0 = (20,20) ;
+% show x0 ; clearxy 0 ;
+% show x0 ; z0 = (30,30) ;
+
+primarydef p smoothed d =
+ (p llmoved (-xpart paired(d),0) -- p lrmoved (-xpart paired(d),0) {right} ..
+ p lrmoved (0,-ypart paired(d)) -- p urmoved (0,-ypart paired(d)) {up} ..
+ p urmoved (-xpart paired(d),0) -- p ulmoved (-xpart paired(d),0) {left} ..
+ p ulmoved (0,-ypart paired(d)) -- p llmoved (0,-ypart paired(d)) {down} .. cycle)
+enddef ;
+
+primarydef p cornered c =
+ ((point 0 of p) shifted (c*(unitvector(point 1 of p - point 0 of p))) --
+ for i=1 upto length(p) :
+ (point i-1 of p) shifted (c*(unitvector(point i of p - point i-1 of p))) --
+ (point i of p) shifted (c*(unitvector(point i-1 of p - point i of p))) ..
+ controls point i of p ..
+ endfor cycle)
+enddef ;
+
+permanent smoothed, cornered ;
+
+% cmyk color support
+
+% vardef cmyk(expr c,m,y,k) = % elsewhere
+% (1-c-k,1-m-k,1-y-k)
+% enddef ;
+
+% handy
+
+% vardef bbwidth (expr p) = % vardef width_of primary p =
+% if known p :
+% if path p or picture p :
+% xpart (lrcorner p - llcorner p)
+% else :
+% 0
+% fi
+% else :
+% 0
+% fi
+% enddef ;
+
+vardef bbwidth primary p =
+ if unknown p :
+ 0
+ elseif path p or picture p :
+ xpart (lrcorner p - llcorner p)
+ else :
+ 0
+ fi
+enddef ;
+
+% vardef bbheight (expr p) = % vardef heigth_of primary p =
+% if known p :
+% if path p or picture p :
+% ypart (urcorner p - lrcorner p)
+% else :
+% 0
+% fi
+% else :
+% 0
+% fi
+% enddef ;
+
+vardef bbheight primary p =
+ if unknown p :
+ 0
+ elseif path p or picture p :
+ ypart (urcorner p - lrcorner p)
+ else :
+ 0
+ fi
+enddef ;
+
+permanent bbwidth, bbheight ;
+
+color nocolor ; numeric noline ; % both unknown signals
+
+def dowithpath (expr p, lw, lc, bc) =
+ if known p :
+ if known bc :
+ fill p withcolor bc ;
+ fi ;
+ if known lw and known lc :
+ draw p withpen pencircle scaled lw withcolor lc ;
+ elseif known lw :
+ draw p withpen pencircle scaled lw ;
+ elseif known lc :
+ draw p withcolor lc ;
+ fi ;
+ fi ;
+enddef ;
+
+% result from metafont discussion list (denisr/boguslawj)
+
+def [[[ = [ [ [ enddef ; % already: def [[ = [ [ enddef ;
+def ]]] = ] ] ] enddef ; % already: def ]] = ] ] enddef ;
+
+let == = = ; % magic
+
+permanent [[[, ]]], ==;
+
+% added
+
+picture oddly ; % evenly already defined
+
+evenly := dashpattern(on 3 off 3) ;
+oddly := dashpattern(off 3 on 3) ;
+
+% not perfect, but useful since it removes redundant points.
+
+vardef mfun_straightened(expr sign, p) =
+ save temp_p, temp_q ; path temp_p, temp_q ;
+ temp_p := p ;
+ forever :
+ temp_q := mfun_do_straightened(sign, temp_p) ;
+ exitif length(temp_p) = length(temp_q) ;
+ temp_p := temp_q ;
+ endfor ;
+ temp_q
+enddef ;
+
+% vardef mfun_straightened(expr sign, p) =
+% save lp, lq, q ; path q ; q := p ;
+% lp := length(p) ;
+% forever :
+% q := mfun_do_straightened(sign,q) ;
+% lq := length(q) ;
+% exitif lp = lq ;
+% lp := lq ;
+% endfor ;
+% q
+% enddef ;
+
+% can be optimized:
+
+vardef mfun_do_straightened(expr sign, p) =
+ if length(p) > 2 : % was 1, but straight lines are ok
+ save pp ; path pp ;
+ pp := point 0 of p ;
+ for i=1 upto length(p)-1 :
+ if round(point i of p) <> round(point length(pp) of pp) :
+ pp := pp -- point i of p ;
+ fi ;
+ endfor ;
+ save n, ok ; numeric n ; boolean ok ;
+ n := length(pp) ; ok := false ;
+ if n > 2 :
+ for i=0 upto n :
+ if unitvector(round(point i of pp - point if i=0 : n else : i-1 fi of pp)) <>
+ sign * unitvector(round(point if i=n : 0 else : i+1 fi of pp - point i of pp)) :
+ if ok :
+ --
+ else :
+ ok := true ;
+ fi point i of pp
+ fi
+ endfor
+ if ok and (cycle p) :
+ -- cycle
+ fi
+ else :
+ pp
+ fi
+ else :
+ p
+ fi
+enddef ;
+
+vardef simplified expr p = (
+ reverse mfun_straightened(+1,mfun_straightened(+1,reverse p))
+) enddef ;
+
+vardef unspiked expr p = (
+ reverse mfun_straightened(-1,mfun_straightened(-1,reverse p))
+) enddef ;
+
+permanent simplified, unspiked ;
+
+% path p ;
+% p := (2cm,1cm) -- (2cm,1cm) -- (2cm,1cm) -- (3cm,1cm) --
+% (4cm,1cm) -- (4cm,2cm) -- (4cm,2.5cm) -- (4cm,3cm) --
+% (3cm,3cm) -- (2cm,3cm) -- (1cm,3cm) -- (-1cm,3cm) --
+% .5[(-1cm,3cm),(1cm,1cm)] -- (1cm,1cm) -- cycle ;
+%
+% p := unitcircle scaled 4cm ;
+%
+% drawpath p ; drawpoints p ; drawpointlabels p ;
+% p := p shifted (4cm,0) ; p := straightened p ;
+% drawpath p ; drawpoints p ; drawpointlabels p ;
+% p := p shifted (4cm,0) ; p := straightened p ;
+% drawpath p ; drawpoints p ; drawpointlabels p ;
+
+% new
+
+path originpath ; originpath := origin -- cycle ;
+
+vardef unitvector primary z =
+ if abs z = abs origin : z else : z/abs z fi % hm, abs origin is just origin
+enddef;
+
+vardef epsed (expr e) = % epsed(1.2345)
+ e if e>0 : + eps elseif e < 0 : - eps fi
+enddef ;
+
+immutable originpath ;
+permanent unitvector, epsed ;
+
+% handy
+
+def withgray primary g =
+ withcolor g
+enddef ;
+
+if unknown darkred : color darkred ; darkred := .625(1,0,0) fi ;
+if unknown darkgreen : color darkgreen ; darkgreen := .625(0,1,0) fi ;
+if unknown darkblue : color darkblue ; darkblue := .625(0,0,1) fi ;
+if unknown darkcyan : color darkcyan ; darkcyan := .625(0,1,1) fi ;
+if unknown darkmagenta : color darkmagenta ; darkmagenta := .625(1,0,1) fi ;
+if unknown darkyellow : color darkyellow ; darkyellow := .625(1,1,0) fi ;
+if unknown darkgray : color darkgray ; darkgray := .625(1,1,1) fi ;
+if unknown lightgray : color lightgray ; lightgray := .850(1,1,1) fi ;
+
+permanent withgray ;
+
+% an improved plain mp macro
+
+vardef center primary p =
+ if pair p :
+ p
+ else :
+ .5[llcorner p, urcorner p]
+ fi
+enddef;
+
+permanent center ;
+
+% new, yet undocumented
+
+vardef rangepath (expr p, d, a) =
+ if length p>0 :
+ (d*unitvector(direction 0 of p) rotated a) shifted point 0 of p
+ -- p --
+ (d*unitvector(direction length(p) of p) rotated a) shifted point length(p) of p
+ else :
+ p
+ fi
+enddef ;
+
+% under construction
+
+vardef straightpath (expr a, b, method) =
+ if (method<1) or (method>6) :
+ (a--b)
+ elseif method = 1 :
+ (a --
+ if xpart a > xpart b :
+ if ypart a > ypart b :
+ (xpart b,ypart a) --
+ elseif ypart a < ypart b :
+ (xpart a,ypart b) --
+ fi
+ elseif xpart a < xpart b :
+ if ypart a > ypart b :
+ (xpart a,ypart b) --
+ elseif ypart a < ypart b :
+ (xpart b,ypart a) --
+ fi
+ fi
+ b)
+ elseif method = 3 :
+ (a --
+ if xpart a > xpart b :
+ (xpart b,ypart a) --
+ elseif xpart a < xpart b :
+ (xpart a,ypart b) --
+ fi
+ b)
+ elseif method = 5 :
+ (a --
+ if ypart a > ypart b :
+ (xpart b,ypart a) --
+ elseif ypart a < ypart b :
+ (xpart a,ypart b) --
+ fi
+ b)
+ else :
+ (reverse straightpath(b,a,method-1))
+ fi
+enddef ;
+
+permanent straightpath ;
+
+% handy for myself
+
+def addbackground text t =
+ begingroup ;
+ save p, b ; picture p ; path b ;
+ b := boundingbox currentpicture ;
+ p := currentpicture ; currentpicture := nullpicture ;
+ fill b t ;
+ setbounds currentpicture to b ;
+ addto currentpicture also p ;
+ endgroup ;
+enddef ;
+
+permanent addbackground ;
+
+% makes a (line) into an infinite one (handy for calculating
+% intersection points
+
+vardef infinite expr p =
+ (-infinity*unitvector(direction 0 of p)
+ shifted point 0 of p
+ -- p --
+ +infinity*unitvector(direction length(p) of p)
+ shifted point length(p) of p)
+enddef ;
+
+permanent infinite ;
+
+% obscure macros: create var from string and replace - and :
+% (needed for process color id's) .. will go away
+
+% this will become a lua helper
+
+% string mfun_clean_ascii[] ;
+%
+% def register_dirty_chars(expr str) =
+% for i = 0 upto length(str)-1 :
+% mfun_clean_ascii[ASCII substring(i,i+1) of str] := "_" ;
+% endfor ;
+% enddef ;
+%
+% register_dirty_chars("+-*/:;., ") ;
+%
+% vardef cleanstring (expr s) =
+% save ss ; string ss, si ; ss = "" ; save i ;
+% for i=0 upto length(s) :
+% si := substring(i,i+1) of s ;
+% ss := ss & if known mfun_clean_ascii[ASCII si] : mfun_clean_ascii[ASCII si] else : si fi ;
+% endfor ;
+% ss
+% enddef ;
+%
+% vardef asciistring (expr s) =
+% save ss ; string ss, si ; ss = "" ; save i ;
+% for i=0 upto length(s) :
+% si := substring(i,i+1) of s ;
+% if (ASCII si >= ASCII "0") and (ASCII si <= ASCII "9") :
+% ss := ss & char(scantokens(si) + ASCII "A") ;
+% else :
+% ss := ss & si ;
+% fi ;
+% endfor ;
+% ss
+% enddef ;
+%
+% vardef setunstringed (expr s, v) =
+% scantokens(cleanstring(s)) := v ;
+% enddef ;
+%
+% vardef getunstringed (expr s) =
+% scantokens(cleanstring(s))
+% enddef ;
+%
+% vardef unstringed (expr s) =
+% expandafter known scantokens(cleanstring(s))
+% enddef ;
+
+% for david arnold: showgrid(-5,10,1cm,-10,10,1cm);
+
+def showgrid (expr minx, maxx, deltax, miny, maxy, deltay) = % will move
+ begingroup
+ save size ; numeric size ; size := 2pt ;
+ for x=minx upto maxx :
+ for y=miny upto maxy :
+ draw (x*deltax, y*deltay) withpen pencircle scaled
+ if (x mod 5 = 0) and (y mod 5 = 0) :
+ 1.5size withcolor .50white
+ else :
+ size withcolor .75white
+ fi ;
+ endfor ;
+ endfor ;
+ for x=minx upto maxx:
+ label.bot(textext("\infofont " & decimal x), (x*deltax,-size)) ;
+ endfor ;
+ for y=miny upto maxy:
+ label.lft(textext("\infofont " & decimal y), (-size,y*deltay)) ;
+ endfor ;
+ endgroup
+enddef;
+
+% new, handy for:
+%
+% \startuseMPgraphic{map}{n}
+% \includeMPgraphic{map:germany} ;
+% c_phantom (\MPvar{n}<1) (
+% fill map_germany withcolor \MPcolor{lightgray} ;
+% draw map_germany withpen pencircle scaled 1pt withcolor \MPcolor{darkgray} ;
+% ) ;
+% \includeMPgraphic{map:austria} ;
+% c_phantom (\MPvar{n}<2) (
+% fill map_austria withcolor \MPcolor{lightgray} ;
+% draw map_austria withpen pencircle scaled 1pt withcolor \MPcolor{darkgray} ;
+% ) ;
+% c_phantom (\MPvar{n}<3) (
+% \includeMPgraphic{map:swiss} ;
+% fill map_swiss withcolor \MPcolor{lightgray} ;
+% draw map_swiss withpen pencircle scaled 1pt withcolor \MPcolor{darkgray} ;
+% ) ;
+% c_phantom (\MPvar{n}<4) (
+% \includeMPgraphic{map:luxembourg} ;
+% fill map_luxembourg withcolor \MPcolor{lightgray} ;
+% draw map_luxembourg withpen pencircle scaled 1pt withcolor \MPcolor{darkgray} ;
+% ) ;
+% \stopuseMPgraphic
+%
+% \useMPgraphic{map}{n=3}
+
+vardef phantom (text t) = % to be checked
+ picture temp_p ;
+ temp_p := image(t) ;
+ addto temp_p also currentpicture ;
+ setbounds currentpicture to boundingbox temp_p ;
+enddef ;
+
+vardef c_phantom (expr b) (text t) =
+ if b :
+ save temp_p; picture temp_p ;
+ temp_p := image(t) ;
+ addto temp_p also currentpicture ;
+ setbounds currentpicture to boundingbox temp_p ;
+ else :
+ t ;
+ fi ;
+enddef ;
+
+permanent phantom ;
+
+%D Handy:
+
+def break =
+ exitif true ; % fi
+enddef ;
+
+permanent break ;
+
+%D New too:
+
+primarydef p xstretched w = (
+ p if (bbwidth (p)>0) and (w>0) : xscaled (w/bbwidth (p)) fi
+) enddef ;
+
+primarydef p ystretched h = (
+ p if (bbheight(p)>0) and (h>0) : yscaled (h/bbheight(p)) fi
+) enddef ;
+
+permanent xstretched, ystretched ;
+
+%D Newer:
+
+vardef area expr p =
+ % we could calculate the boundingbox once
+ (xpart llcorner boundingbox p,0) -- p --
+ (xpart lrcorner boundingbox p,0) -- cycle
+enddef ;
+
+vardef basiccolors[] =
+ if @ = 0 :
+ white
+ else :
+ save n ; n := @ mod 7 ;
+ if n = 1 : red
+ elseif n = 2 : green
+ elseif n = 3 : blue
+ elseif n = 4 : cyan
+ elseif n = 5 : magenta
+ elseif n = 6 : yellow
+ else : black
+ fi
+ fi
+enddef ;
+
+% vardef somecolor = (1,1,0,0) enddef ;
+
+% fill OverlayBox withcolor (rcomponent somecolor,gcomponent somecolor,bcomponent somecolor) ;
+% fill OverlayBox withcolor (ccomponent somecolor,mcomponent somecolor,ycomponent somecolor,bcomponent somecolor) ;
+
+% This could be standard mplib 2 behaviour:
+
+% vardef rcomponent expr p = if rgbcolor p : redpart elseif cmykcolor p : 1 - cyanpart fi p enddef ;
+
+vardef rcomponent expr p = if rgbcolor p : redpart p elseif cmykcolor p : 1 - cyanpart p else : p fi enddef ;
+vardef gcomponent expr p = if rgbcolor p : greenpart p elseif cmykcolor p : 1 - magentapart p else : p fi enddef ;
+vardef bcomponent expr p = if rgbcolor p : bluepart p elseif cmykcolor p : 1 - yellowpart p else : p fi enddef ;
+vardef ccomponent expr p = if cmykcolor p : cyanpart p elseif rgbcolor p : 1 - redpart p else : p fi enddef ;
+vardef mcomponent expr p = if cmykcolor p : magentapart p elseif rgbcolor p : 1 - greenpart p else : p fi enddef ;
+vardef ycomponent expr p = if cmykcolor p : yellowpart p elseif rgbcolor p : 1 - bluepart p else : p fi enddef ;
+vardef kcomponent expr p = if cmykcolor p : blackpart p elseif rgbcolor p : 0 else : p fi enddef ;
+
+permanent rcomponent, gcomponent, bcomponent, ccomponent, mcomponent, ycomponent, kcomponent ;
+
+% draw image (...) ... ; % prescripts prepended to first, postscripts appended to last
+% draw decorated (...) ... ; % prescripts prepended to each, postscripts appended to each
+% draw redecorated (...) ... ; % prescripts assigned to each, postscripts assigned to each
+% draw undecorated (...) ... ; % following properties are ignored, existing properties are kept
+%
+% draw decorated (
+% draw fullcircle scaled 20cm withpen pencircle scaled 20mm withcolor red withtransparency (1,.40) ;
+% draw fullcircle scaled 15cm withpen pencircle scaled 15mm withcolor green withtransparency (1,.30) ;
+% draw fullcircle scaled 10cm withpen pencircle scaled 10mm withcolor blue withtransparency (1,.20) ;
+% )
+% withcolor blue
+% withtransparency (1,.125) % selectively applied
+% withpen pencircle scaled 10mm
+% ;
+
+% vardef image (text imagedata) = % already defined
+% save currentpicture ;
+% picture currentpicture ;
+% currentpicture := nullpicture ;
+% imagedata ;
+% currentpicture
+% enddef ;
+
+vardef undecorated (text t) text decoration =
+ save currentpicture ;
+ picture currentpicture ;
+ currentpicture := nullpicture ;
+ t ;
+ currentpicture
+enddef ;
+
+vardef decorated (text imagedata) text decoration =
+ save mfun_decorated_path, currentpicture ;
+ picture mfun_decorated_path, currentpicture ;
+ currentpicture := nullpicture ;
+ imagedata ;
+ mfun_decorated_path := currentpicture ;
+ currentpicture := nullpicture ;
+ for i within mfun_decorated_path :
+ addto currentpicture
+ if stroked i :
+ doublepath pathpart i
+ dashed dashpart i
+ withpen penpart i
+ withcolor colorpart i
+ withprescript prescriptpart i
+ withpostscript postscriptpart i
+ decoration
+ elseif filled i :
+ contour pathpart i
+ withpen penpart i
+ withcolor colorpart i
+ withprescript prescriptpart i
+ withpostscript postscriptpart i
+ decoration
+ elseif textual i :
+ also i
+ withcolor colorpart i
+ withprescript prescriptpart i
+ withpostscript postscriptpart i
+ decoration
+ else :
+ also i
+ fi
+ ;
+ endfor ;
+ currentpicture
+enddef ;
+
+vardef redecorated (text imagedata) text decoration =
+ save mfun_decorated_path, currentpicture ;
+ picture mfun_decorated_path, currentpicture ;
+ currentpicture := nullpicture ;
+ imagedata ;
+ mfun_decorated_path := currentpicture ;
+ currentpicture := nullpicture ;
+ for i within mfun_decorated_path :
+ addto currentpicture
+ if stroked i :
+ doublepath pathpart i
+ dashed dashpart i
+ withpen penpart i
+ decoration
+ elseif filled i :
+ contour pathpart i
+ withpen penpart i
+ decoration
+ elseif textual i :
+ also i
+ decoration
+ else :
+ also i
+ fi
+ ;
+ endfor ;
+ currentpicture
+enddef ;
+
+permanent decorated, undecorated, redecorated ;
+
+% path mfun_bleed_box ;
+
+% primarydef p bleeded d =
+% image (
+% mfun_bleed_box := boundingbox p ;
+% if pair d :
+% draw p xysized (bbwidth(p)+2*xpart d,bbheight(p)+2*ypart d) shifted -d ;
+% else :
+% draw p xysized (bbwidth(p)+2d,bbheight(p)+2d) shifted (-d,-d) ;
+% fi ;
+% setbounds currentpicture to mfun_bleed_box ;
+% )
+% enddef ;
+
+vardef mfun_snapped(expr p, s) =
+ if p < 0 : - ( - else : ( fi p div s) * s % the less tokens the better
+enddef ;
+
+vardef mfun_applied(expr p, s)(suffix a) =
+ if path p :
+ if pair s :
+ for i=0 upto length(p)-1 :
+ (a(xpart point i of p,xpart s),a(ypart point i of p,ypart s)) --
+ endfor
+ if cycle p :
+ cycle
+ else :
+ (a(xpart point length(p) of p,xpart s),a(ypart point length(p) of p,ypart s))
+ fi
+ else :
+ for i=0 upto length(p)-1 :
+ (a(xpart point i of p,s),a(ypart point i of p,s)) --
+ endfor
+ if cycle p :
+ cycle
+ else :
+ (a(xpart point length(p) of p,s),a(ypart point length(p) of p,s))
+ fi
+ fi
+ elseif pair p :
+ if pair s :
+ (a(xpart p,xpart s),a(ypart p,ypart s))
+ else :
+ (a(xpart p,s),a(ypart p,s))
+ fi
+ elseif cmykcolor p :
+ (a(cyanpart p,s),a(magentapart p,s),a(yellowpart p,s),a(blackpart p,s))
+ elseif rgbcolor p :
+ (a(redpart p,s),a(greenpart p,s),a(bluepart p,s))
+ elseif graycolor p :
+ a(p,s)
+ elseif numeric p :
+ a(p,s)
+ else
+ p
+ fi
+enddef ;
+
+primarydef p snapped s =
+ mfun_applied(p,s)(mfun_snapped) % so we can play with variants
+enddef ;
+
+permanent snapped ;
+
+% Take a look at mp-tool.mpiv for the old implementation if the next code. We only
+% provide this for old times sake. We assume that the lmt_ commands are defined by
+% the time this is used:
+%
+% beginfont("demo-symbols");
+% beginglyph(9754,2,4,0) ; % high voltage
+% interim ahlength := 1 ;
+% drawarrow (1,4) -- (0,2) -- (2,3) -- (1,0) withcolor darkred ;
+% endglyph ;
+% endfont;
+
+picture font_glyph[][] ;
+numeric font_count ; font_count := 0;
+
+def beginfont(expr n) =
+ begingroup ;
+ save name ; string name; name := n;
+ font_count := font_count + 1 ;
+ lmt_registerglyphs [
+ name = name,
+ units = 10,
+ width = 10,
+ height = 8,
+ depth = 2,
+ ] ;
+enddef ;
+
+def endfont =
+ endgroup;
+enddef ;
+
+def beginglyph(expr u, w, h, d) =
+ save unicode ; unicode := u;
+ lmt_registerglyph [
+ category = name,
+ unicode = u,
+ code = "draw font_glyph[" & decimal font_count & "][" & decimal u & "];"
+ width = w,
+ height = h,
+ depth = d,
+ ] ;
+ currentpicture := nullpicture ;
+enddef ;
+
+def endglyph =
+ font_glyph[font_count][unicode] := currentpicture ;
+enddef ;
+
+permanent beginfont, endfont, beginglyph, endglyph ;
+
+%D Dimensions have never been an issue as traditional MP can't make that large
+%D pictures, but with double mode we need a catch:
+
+newinternal maxdimensions ; maxdimensions := 14000 ;
+
+def mfun_apply_max_dimensions = % not a generic helper, we want to protect this one
+ if bbwidth currentpicture > maxdimensions :
+ currentpicture := currentpicture if bbheight currentpicture > bbwidth currentpicture : ysized else : xsized fi maxdimensions ;
+ elseif bbheight currentpicture > maxdimensions :
+ currentpicture := currentpicture ysized maxdimensions ;
+ fi ;
+enddef;
+
+extra_endfig := extra_endfig & "mfun_apply_max_dimensions ;" ;
+
+%D Bonus shapes (need along):
+
+path unittriangle, fulltriangle ; % not really units but circle based
+
+unittriangle := point 0 along unitcircle
+ -- point 1/3 along unitcircle
+ -- point 2/3 along unitcircle
+ -- cycle ;
+fulltriangle := point 0 along fullcircle
+ -- point 1/3 along fullcircle
+ -- point 2/3 along fullcircle
+ -- cycle ;
+
+immutable unittriangle, fulltriangle ;
+
+%D Kind of special and undocumented. On Wikipedia one can find examples
+%D of quick sort routines. Here we have a variant that permits a
+%D method.
+
+% vardef listsize(suffix list) =
+% numeric len ; len := 0 ;
+% forever :
+% exitif unknown list[len+1] ;
+% len := len + 1 ;
+% endfor ;
+% len
+% enddef ;
+
+vardef listsize(suffix list) =
+ numeric len ; len := 1 ;
+ forever :
+ exitif unknown list[len] ;
+ len := len + 1 ;
+ endfor ;
+ len if unknown list[0] : - 1 fi
+enddef ;
+
+vardef listlast(suffix list) =
+ numeric len ; len := if known list[0] : 0 else : 1 fi ;
+ forever :
+ len := len + 1 ;
+ exitif unknown list[len] ;
+ endfor ;
+ len - 1
+enddef ;
+
+vardef mfun_quick_sort(suffix list)(expr asked_min, asked_max)(text what) =
+ save l, r, m ;
+ numeric l ; l := asked_min ;
+ numeric r ; r := asked_max ;
+ numeric m ; m := floor(.5[asked_min,asked_max]) ;
+ asked_mid := what list[m] ;
+ forever :
+ exitif l >= r ;
+ forever :
+ exitif l > asked_max ;
+ % exitif (what list[l]) >= (what list[m]) ;
+ exitif (what list[l]) >= asked_mid ;
+ l := l + 1 ;
+ endfor ;
+ forever :
+ exitif r < asked_min ;
+ % exitif (what list[m]) >= (what list[r]) ;
+ exitif asked_mid >= (what list[r]) ;
+ r := r - 1 ;
+ endfor ;
+ if l <= r :
+ temp := list[l] ;
+ list[l] := list[r] ;
+ list[r] := temp ;
+ l := l + 1 ;
+ r := r - 1 ;
+ fi ;
+ endfor ;
+ if asked_min < r :
+ mfun_quick_sort(list)(asked_min,r)(what) ;
+ fi ;
+ if l < asked_max :
+ mfun_quick_sort(list)(l,asked_max)(what) ;
+ fi ;
+enddef ;
+
+vardef sortlist(suffix list)(text what) =
+ save asked_max ; numeric asked_max ;
+ save asked_mid ; numeric asked_mid ;
+ save temp ;
+ % asked_max := listsize(list) ;
+ asked_max := listlast(list) ;
+ if pair list[asked_max] :
+ pair temp ;
+ else :
+ numeric temp ;
+ fi ;
+ if pair what list[asked_max] :
+ pair asked_mid ;
+ else :
+ numeric asked_mid ;
+ fi ;
+ if asked_max > 1 :
+ % mfun_quick_sort(list)(1,asked_max)(what) ;
+ mfun_quick_sort(list)(if known list[0] : 0 else : 1 fi,asked_max)(what) ;
+ fi ;
+enddef ;
+
+vardef uniquelist(suffix list) =
+ % this one will be defined later
+enddef ;
+
+vardef copylist(suffix list, target) =
+ save i ; i := 1 ;
+ forever :
+ exitif unknown list[i] ;
+ target[i] := list[i] ;
+ i := i + 1 ;
+ endfor ;
+enddef ;
+
+vardef listtolines(suffix list) =
+ list[1] for i=2 upto listsize(list) : -- list[i] endfor
+enddef ;
+
+vardef listtocurves(suffix list) =
+ list[1] for i=2 upto listsize(list) : .. list[i] endfor
+enddef ;
+
+%D The sorter is used in:
+
+% not yet ok
+
+vardef shapedlist(suffix p) = % takes a list of paths
+ save l ; pair l[] ;
+ save r ; pair r[] ;
+ save i ; i := 1 ;
+ save n ; n := 0 ;
+ forever :
+ exitif unknown p[i] ;
+ n := n + 1 ;
+ l[n] := ulcorner p[i] ;
+ r[n] := urcorner p[i] ;
+ n := n + 1 ;
+ l[n] := llcorner p[i] ;
+ r[n] := lrcorner p[i] ;
+ i := i + 1 ;
+ endfor ;
+ for i = 3 upto n :
+ if xpart r[i] < xpart r[i-1] :
+ r[i] := (xpart r[i],ypart r[i-1]) ;
+ elseif xpart r[i] > xpart r[i-1] :
+ r[i-1] := (xpart r[i-1],ypart r[i]) ;
+ fi ;
+ if xpart l[i] < xpart l[i-1] :
+ l[i-1] := (xpart l[i-1],ypart l[i]) ;
+ elseif xpart l[i] > xpart l[i-1] :
+ l[i] := (xpart l[i],ypart l[i-1]) ;
+ fi ;
+ endfor ;
+ if n > 0 :
+ simplified (
+ for i = 1 upto n : r[i] -- endfor
+ for i = n downto 1 : l[i] -- endfor
+ cycle
+ )
+ else :
+ origin -- cycle
+ fi
+enddef ;
+
+permanent listsize, listlast, sortlist, uniquelist, copylist, listtolines, listtocurves, shapedlist ;
+
+%D Dumping is fake anyway but let's keep this:
+
+let dump = relax ;
+
+%D Loading modules can be done with:
+
+def loadmodule expr name = % no vardef
+ % input can't be used directly in a macro
+ if unknown scantokens("context_" & name) :
+ save s ; string s ;
+ % s := "mp-" & name & ".mpiv" ;
+ % message("loading module",s) ;
+ % s := "input " & s ;
+ s := "input " & "mp-" & name & ".mpiv" ;
+ expandafter scantokens expandafter s
+ fi ;
+enddef ;
+
+def loadfile (expr filename) = scantokens("input " & filename) enddef ;
+def loadimage (expr filename) = image(scantokens("input " & filename);) enddef ;
+
+permanent loadmodule, loadfile, loadimage ;
+
+%D Handy for backgrounds:
+
+def drawpathwithpoints expr p =
+ do_drawpathwithpoints(p)
+enddef ;
+
+def do_drawpathwithpoints(expr p) text t =
+ draw p t ;
+ if length(p) > 2 :
+ begingroup ;
+ save temp_c ; path temp_c ;
+ save temp_p; picture temp_p ;
+ temp_p := image (
+ temp_c := if cycle p : fullsquare else : fullcircle fi scaled 6pt ;
+ for i=0 upto length(p) if cycle p : -1 fi :
+ fill temp_c shifted point i of p withcolor white ;
+ draw temp_c shifted point i of p withcolor white/2 withpen pencircle scaled .5pt ;
+ if (i = 0) and cycle p :
+ temp_c := fullcircle scaled 6pt ;
+ fi ;
+ endfor ;
+ for i=0 upto length(p) if cycle p : -1 fi :
+ draw textext("\infofont " & decimal i) ysized 2pt shifted point i of p ;
+ endfor ;
+ ) ;
+ setbounds temp_p to boundingbox p ;
+ draw temp_p ;
+ fi ;
+enddef ;
+
+%D These new helpers are by Alan and are used in for instance the mp-node
+%D module.
+
+newinternal crossingdebug ; crossingdebug := 0 ;
+newinternal crossingscale ; crossingscale := 10 ;
+newinternal crossingnumbermax ; crossingnumbermax := 1000 ;
+
+% primary, secondary or tertiary? always hard to decide but primary makes sense
+
+vardef infotext@#(expr txt, ysize) =
+ textext@#("\infofont " & if numeric txt : decimal fi txt) ysized ysize
+enddef ;
+
+primarydef p crossingunder q =
+ begingroup
+ save pic ; picture pic ; pic := nullpicture ;
+ if picture p :
+ for i within p :
+ if stroked i :
+ addto pic also image(draw pathpart i crossingunder q) ;
+ fi
+ endfor
+ elseif path p :
+ save n, t, a, b, c, r, bcuttings, hold ;
+ numeric n, t[], hold ;
+ path a, b, c, r, bcuttings, hold[] ;
+ c := makepath(currentpen scaled crossingscale) ;
+ r := if picture q : boundingbox fi q ;
+ t[0] := n := hold := 0 ;
+ a := p ;
+ % The cutbefore/cutafter using c below prevents endless loops!
+ %forever : % find all intersections
+ for i=1 upto crossingnumbermax : % safeguard
+ clearxy ; z = a intersectiontimes r ;
+ if x < 0 :
+ exitif hold < 1 ;
+ a := hold[hold] ; hold := hold - 1 ;
+ clearxy ; z = a intersectiontimes r ;
+ fi
+ (t[incr n], whatever) = p intersectiontimes point x of a ;
+ if x = 0 :
+ a := a cutbefore c shifted point x of a ;
+ elseif x = length a :
+ a := a cutafter c shifted point x of a ;
+ else : % before or after?
+ b := subpath (0,x) of a cutafter c shifted point x of a ;
+ bcuttings := cuttings ;
+ a := subpath (x,length a) of a cutbefore c shifted point x of a ;
+ clearxy ; z = a intersectiontimes r ;
+ if x < 0 :
+ a := b ;
+ cuttings := bcuttings ;
+ else :
+ if length bcuttings > 0 :
+ clearxy ; z = b intersectiontimes r ;
+ if x >= 0 :
+ hold[incr hold] := b ;
+ fi
+ fi
+ fi
+ fi
+ if length cuttings = 0 : % a single point: nothing cut
+ exitif hold < 1 ;
+ a := hold[hold] ; hold := hold - 1 ;
+ fi
+ if i = crossingnumbermax :
+ message("crossingunder reached maximum " & decimal i & " intersections.");
+ fi
+ endfor
+
+ if n = 0 : % No crossings, we return the PATH
+ save pic ; path pic ; pic := p ;
+ else : % n>0
+ sortlist(t,) ;
+ % we add too much, maybe a test is needed
+ t[incr n] = length p if cycle p : + t[1] fi ;
+% save tt[] ; numeric tt[] ; uniquelist(t,tt) ; t := tt ;
+ % Now, n>1 !
+ % t[0] is the first point of the path and t[n] is the last point
+ % (or the first intersection beyond the length if cyclic)
+ save m ; m := 0 ;
+ for i=if cycle p: 2 else: 1 fi upto n :
+ % skip the first segment if cyclic
+ % as it gets repeated (fully) at the end.
+ if crossingdebug > 0 :
+ if crossingdebug = 1 :
+ addto pic doublepath c shifted point t[i] of p
+ withpen currentpen withtransparency(1,.5) ;
+ elseif crossingdebug = 2 :
+ addto pic also
+ infotext (incr m,crossingscale/5)
+ shifted point t[i] of p ;
+ fi
+ fi
+ a := subpath (t[i-1],t[i]) of p
+ if i > 1 :
+ cutbefore (c shifted point t[i-1] of p)
+ fi
+ if (i < n) or (cycle p) :
+ cutafter (c shifted point t[i] of p)
+ fi ;
+ if (not picture q) or (a outsideof q) :
+ addto pic doublepath a withpen currentpen ;
+ fi
+ endfor
+ fi
+ fi
+ pic
+ endgroup
+enddef ;
+
+primarydef p insideof q =
+ begingroup
+ save pth, pic, t ;
+ path pth ; picture pic ;
+ pic := if path q : image(draw q;) else : q fi ;
+ pth := p -- center pic ;
+ (t, whatever) = pth intersectiontimes boundingbox pic ;
+ t < 0
+ endgroup
+enddef ;
+
+% primarydef p insideof q =
+% if (path q or picture q) :
+% if (path p or picture p) :
+% (xpart llcorner p > xpart llcorner q) and
+% (xpart urcorner p < xpart urcorner q) and
+% (ypart llcorner p > ypart llcorner q) and
+% (ypart urcorner p < ypart urcorner q)
+% elseif pair p :
+% (xpart p > xpart llcorner q) and
+% (xpart p < xpart urcorner q) and
+% (ypart p > ypart llcorner q) and
+% (ypart p < ypart urcorner q)
+% fi
+% elseif (numeric p and pair q) :
+% % range check
+% (p >= xpart q) and (p <= ypart q)
+% else : % maybe triplets and such
+% false
+% fi
+% enddef ;
+
+primarydef p outsideof q =
+ not (p insideof q)
+enddef ;
+
+permanent crossingdebug, crossingscale, crossingnumberm, infotext, crossingunder, insideof, outsideof ;
+
+%D Also handy:
+
+vardef circularpath primary n =
+ reverse (for i=0 step 2/n until 8-2/n+2eps: point i of fullcircle .. endfor cycle) rotated 90
+enddef ;
+
+vardef squarepath primary n =
+ for i=0 step 1/n until 4-1/n + 2eps: point i of fullsquare -- endfor cycle
+enddef ;
+
+vardef linearpath primary n =
+ origin for i=1/n step 1/n until 1-1/n + 2eps: -- point i of (origin--(1,0)) endfor
+enddef ;
+
+permanent circularpath, squarepath, linearpath ;
+
+%D A nice tracing helper:
+
+color pensilcolor ; pensilcolor := .5red ;
+newinternal pensilstep ; pensilstep := 1/25 ;
+
+vardef pensilled(expr p, q) =
+ image (
+ draw p withcolor pensilcolor withpen q ;
+ for i = 0 step pensilstep until length(p) + eps:
+ draw point i of p withcolor white withtransparency (1,.5) withpen q ;
+ endfor ;
+ )
+enddef ;
+
+permanent pensilled, pensilcolor, pensilstep ;
+
+%D Easy to forget but handy for manuals:
+
+vardef tolist(suffix l)(text t) =
+ save n ; n := 1 ;
+ for p = t :
+ if numeric p :
+ n := p ;
+ dispose(l[n])
+ elseif pair p :
+ l[n] := p ;
+ n := n + 1 ;
+ elseif path p :
+ for i=0 step 1 until length(p) :
+ l[n] := point i of p ;
+ n := n + 1 ;
+ endfor ;
+ else :
+ % ignore
+ fi ;
+ endfor ;
+ forever :
+ exitif unknown l[n] ;
+ dispose(l[n])
+ n := n + 1 ;
+ endfor ;
+enddef ;
+
+vardef topath(suffix p)(text t) =
+ save i ; i := if known p[1] : 2 ; p[1] elseif known p[0] : 1 ; p[0] else : 0 ; origin fi
+ forever :
+ exitif unknown p[i] ;
+ t p[i]
+ hide(i := i + 1)
+ endfor
+enddef ;
+
+vardef tocycle(suffix p)(text t) =
+ topath(p,t) t cycle
+enddef ;
+
+permanent tolist, topath, tocycle ;
+
+% reimplemented to support paths and pictures
+
+def drawdot expr p =
+ if pair p :
+ addto currentpicture doublepath p
+ withpen currentpen base_draw_options
+ elseif path p :
+ draw image (
+ for i=0 upto length p :
+ addto currentpicture doublepath point i of p
+ withpen currentpen base_draw_options ;
+ endfor ;
+ )
+ elseif picture p :
+ draw image (
+ save pp ; path pp ;
+ for i within p :
+ if stroked i or filled i :
+ pp := pathpart i ;
+ for j=0 upto length pp :
+ addto currentpicture doublepath point j of pp
+ withpen currentpen base_draw_options ;
+ endfor ;
+ fi ;
+ endfor ;
+ )
+ fi
+enddef ;
+
+permanent drawdot ;
+
+% vardef textlength(text t) =
+% save n ; n := 0 ;
+% for i = t :
+% n := n + 1 ;
+% endfor;
+% n
+% enddef;
+
+vardef mfun_timestamp =
+ decimal year & "-" &
+ decimal month & "-" &
+ decimal day & " " &
+ if ((time div 60) < 10) : "0" & fi
+ decimal (time div 60) & ":" &
+ if ((time-(time div 60)*60) < 10) : "0" & fi
+ decimal (time-(time div 60)*60)
+enddef ;
+
+vardef totransform(expr x, y, xx, xy, yx, yy) =
+ save t ; transform t ;
+ xxpart t = xx ; yypart t = yy ;
+ xypart t = xy ; yxpart t = yx ;
+ xpart t = x ; ypart t = y ;
+ t
+enddef ;
+
+vardef bymatrix(expr rx, sx, sy, ry, tx, ty) =
+ save t ; transform t ;
+ xxpart t = rx ; yypart t = ry ;
+ xypart t = sx ; yxpart t = sy ;
+ xpart t = tx ; ypart t = ty ;
+ t
+enddef ;
+
+permanent totransform, bymatrix ;
+
+let xslanted = slanted ;
+
+def yslanted primary s =
+ transformed
+ begingroup
+ save t ; transform t ;
+ xxpart t = 1 ; yypart t = 1 ;
+ xypart t = 0 ; yxpart t = s ;
+ xpart t = 0 ; ypart t = 0 ;
+ t
+ endgroup
+enddef ;
+
+permanent xslanted, yslanted ;
diff --git a/metapost/context/fonts/mpiv/bidi-symbols.mp b/metapost/context/fonts/mpiv/bidi-symbols.mp
index abe48b951..926e1c5fd 100644
--- a/metapost/context/fonts/mpiv/bidi-symbols.mp
+++ b/metapost/context/fonts/mpiv/bidi-symbols.mp
@@ -52,6 +52,8 @@ numeric font_bidi_wd ; font_bidi_wd := -12 ;
% setbounds currentpicture to boundingbox nullpicture ;
% endfig ;
+beginfont("bidi-symbols") ;
+
beginglyph(8234,0,0,0) ; % lre
drawarrow (0,0) -- (0,font_bidi_dp) -- (font_bidi_wd,font_bidi_dp) withcolor red ;
endglyph ;
@@ -71,3 +73,5 @@ endglyph ;
beginglyph(8238,0,0,0) ; % rlo
drawarrow reverse ((0,0) -- (0,font_bidi_dp) -- (-font_bidi_wd,font_bidi_dp)) withcolor green ;
endglyph ;
+
+endfont ;
diff --git a/metapost/context/fonts/mpiv/demo-symbols.mp b/metapost/context/fonts/mpiv/demo-symbols.mp
index 822854c94..f74189a1b 100644
--- a/metapost/context/fonts/mpiv/demo-symbols.mp
+++ b/metapost/context/fonts/mpiv/demo-symbols.mp
@@ -14,8 +14,11 @@
passvariable("fontname","demo-symbols") ;
passvariable("fontversion","1.005") ;
+beginfont("demo-symbols") ;
+
beginglyph(9754,2,4,0) ; % high voltage
interim ahlength := 1 ;
drawarrow (1,4) -- (0,2) -- (2,3) -- (1,0) withcolor darkred ;
endglyph ;
+endfont ;
--
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