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-rw-r--r--metapost/context/base/mp-base.mpii3
-rw-r--r--metapost/context/base/mp-tool.mpii2683
-rw-r--r--metapost/context/base/mp-tool.mpiv2
3 files changed, 1463 insertions, 1225 deletions
diff --git a/metapost/context/base/mp-base.mpii b/metapost/context/base/mp-base.mpii
index 95cacb288..addaa86db 100644
--- a/metapost/context/base/mp-base.mpii
+++ b/metapost/context/base/mp-base.mpii
@@ -116,6 +116,9 @@ 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; % The user can reset this
% color part selection for within
diff --git a/metapost/context/base/mp-tool.mpii b/metapost/context/base/mp-tool.mpii
index f363f655e..492dec44c 100644
--- a/metapost/context/base/mp-tool.mpii
+++ b/metapost/context/base/mp-tool.mpii
@@ -5,17 +5,13 @@
%D subtitle=auxiliary macros,
%D author=Hans Hagen,
%D date=\currentdate,
-%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%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.
-% a cleanup is needed, like using image and alike
-% use a few more "newinternal"'s
-
-%D This module is rather preliminary and subjected to
-%D changes.
+% def loadfile(expr name) = scantokens("input " & name & ";") enddef ;
if known context_tool : endinput ; fi ;
@@ -85,20 +81,14 @@ mpprocset := 1 ;
%
% protect ;
-%D By including this module, \METAPOST\ automatically writes a
-%D high resolution boundingbox to the \POSTSCRIPT\ file. This
-%D hack is due to John Hobby himself.
-
-% When somehow the first one gets no HiRes, then make sure
-% that the format matches the mem sizes in the config file.
-
-string space ; space = char 32 ;
+string space ; space := char 32 ;
+string CRLF ; CRLF := char 10 & char 13 ;
vardef ddecimal primary p =
- decimal xpart p & " " & decimal ypart p
+ decimal xpart p & " " & decimal ypart p
enddef ;
-%D Plain compatibility
+%D Plain compatibility:
string plain_compatibility_data ; plain_compatibility_data := "" ;
@@ -112,7 +102,7 @@ def stopplaincompatibility =
enddef ;
% is now built in
-
+%
% extra_endfig := extra_endfig
% & "special "
% & "("
@@ -124,6 +114,11 @@ enddef ;
% & "&ddecimal urcorner currentpicture"
% & ");";
+%D More neutral:
+
+let triplet = rgbcolor ;
+let quadruplet = cmykcolor ;
+
%D Crap (experimental, not used):
def forcemultipass =
@@ -132,12 +127,28 @@ enddef ;
%D Colors:
-nocolormodel := 1 ;
-greycolormodel := 3 ;
-rgbcolormodel := 5 ;
-cmykcolormodel := 7 ;
+newinternal nocolormodel ; nocolormodel := 1 ;
+newinternal greycolormodel ; greycolormodel := 3 ;
+newinternal graycolormodel ; graycolormodel := 3 ;
+newinternal rgbcolormodel ; rgbcolormodel := 5 ;
+newinternal cmykcolormodel ; cmykcolormodel := 7 ;
let grayscale = numeric ;
+let greyscale = numeric ;
+
+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 _p_ ; picture _p_ ;
@@ -148,25 +159,19 @@ vardef colorlike(text c) text v = % colorlike(a) b, c, d ;
elseif (colormodel _p_ = rgbcolormodel) :
rgbcolor i ;
else :
- grayscale i ;
+ greycolor i ;
fi ;
endfor ;
enddef ;
-% if (unknown colormodel) :
-% def colormodel =
-% rgbcolormodel
-% enddef ;
-% fi ;
-
%D Also handy (when we flush colors):
vardef dddecimal primary c =
- decimal redpart c & " " & decimal greenpart c & " " & decimal bluepart 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
+ decimal cyanpart c & " " & decimal magentapart c & " " & decimal yellowpart c & " " & decimal blackpart c
enddef ;
vardef colordecimals primary c =
@@ -193,39 +198,34 @@ enddef ;
%D we need some trickery when we have multiple files.
if unknown collapse_data :
- boolean collapse_data ; collapse_data := false ;
+ boolean collapse_data ;
+ collapse_data := false ;
fi ;
boolean savingdata ; savingdata := false ;
boolean savingdatadone ; savingdatadone := false ;
def savedata expr txt =
- if collapse_data :
- write txt to data_mpd_file ;
- else :
- write if savingdata : txt else :
- "\MPdata{" & decimal charcode & "}{" & txt & "}"
- fi
- & "%" to data_mpd_file ;
- fi ;
+ write if collapse_data :
+ txt
+ else :
+ if savingdata : txt else : "\MPdata{" & decimal charcode & "}{" & txt & "}" fi & "%"
+ fi to data_mpd_file ;
enddef ;
def startsavingdata =
- savingdata := true ;
- savingdatadone := true ;
- if collapse_data :
- write
- "\MPdata{" & decimal charcode & "}{%"
- to
- data_mpd_file ;
- fi ;
+ savingdata := true ;
+ savingdatadone := true ;
+ if collapse_data :
+ write "\MPdata{" & decimal charcode & "}{%" to data_mpd_file ;
+ fi ;
enddef ;
def stopsavingdata =
- if collapse_data :
- write "}%" to data_mpd_file ;
- fi ;
- savingdata := false ;
+ if collapse_data :
+ write "}%" to data_mpd_file ;
+ fi ;
+ savingdata := false ;
enddef ;
def finishsavingdata =
@@ -253,119 +253,130 @@ def newpair text v = forsuffixes i=v : save i ; pair i ; endfor ; endd
%D box, draw the graphics that may not count, and restore the
%D bounding box.
%D
-%D \starttypen
+%D \starttyping
%D push_boundingbox currentpicture;
%D pop_boundingbox currentpicture;
-%D \stoptypen
+%D \stoptyping
%D
%D The bounding box can be called with:
%D
-%D \starttypen
+%D \starttyping
%D boundingbox currentpicture
%D inner_boundingbox currentpicture
%D outer_boundingbox currentpicture
-%D \stoptypen
+%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 \starttypen
+%D \starttyping
%D set_outer_boundingbox currentpicture;
-%D \stoptypen
+%D \stoptyping
%D
%D Its counterpart is:
%D
-%D \starttypen
+%D \starttyping
%D set_inner_boundingbox p
-%D \stoptypen
+%D \stoptyping
-path pushed_boundingbox;
+path mfun_boundingbox_stack ;
+numeric mfun_boundingbox_stack_depth ;
-def push_boundingbox text p =
- pushed_boundingbox := boundingbox p;
-enddef;
+mfun_boundingbox_stack_depth := 0 ;
-def pop_boundingbox text p =
- setbounds p to pushed_boundingbox;
-enddef;
+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 ;
+ 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
+ if (path p) or (picture p) :
+ llcorner p -- lrcorner p -- urcorner p -- ulcorner p
+ else :
+ origin
+ fi -- cycle
enddef;
-vardef inner_boundingbox primary p =
- top rt llcorner p --
- top lft lrcorner p --
- bot lft urcorner p --
- bot rt ulcorner p -- cycle
+vardef innerboundingbox primary p =
+ top rt llcorner p --
+ top lft lrcorner p --
+ bot lft urcorner p --
+ bot rt ulcorner p -- cycle
enddef;
-vardef outer_boundingbox primary p =
- bot lft llcorner p --
- bot rt lrcorner p --
- top rt urcorner p --
- top lft ulcorner p -- cycle
+vardef outerboundingbox primary p =
+ bot lft llcorner p --
+ bot rt lrcorner p --
+ top rt urcorner p --
+ top lft ulcorner p -- cycle
enddef;
-def innerboundingbox = inner_boundingbox enddef ;
-def outerboundingbox = outer_boundingbox enddef ;
+def inner_boundingbox = innerboundingbox enddef ;
+def outer_boundingbox = outerboundingbox enddef ;
-vardef set_inner_boundingbox text q =
- setbounds q to inner_boundingbox q;
+vardef set_inner_boundingbox text q = % obsolete
+ setbounds q to innerboundingbox q;
enddef;
-vardef set_outer_boundingbox text q =
- setbounds q to outer_boundingbox q;
+vardef set_outer_boundingbox text q = % obsolete
+ setbounds q to outerboundingbox q;
enddef;
-%D Some missing functions can be implemented rather
-%D straightforward:
+%D Some missing functions can be implemented rather straightforward (thanks to
+%D Taco and others):
-numeric Pi ; Pi := 3.1415926 ;
+pi := 3.14159265358979323846 ; radian := 180/pi ; % 2pi*radian = 360 ;
-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 ;
+% let +++ = ++ ;
-vardef pow (expr x,p) = (x**p) enddef ;
+numeric Pi ; Pi := pi ; % for some old compatibility reasons i guess
-vardef asin primary x = (x+(x**3)/6+3(x**5)/40) enddef ;
-vardef acos primary x = (asin(-x)) enddef ;
-vardef atan primary x = (x-(x**3)/3+(x**5)/5-(x**7)/7) enddef ;
-vardef tand primary x = (sind(x)/cosd(x)) enddef ;
+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 ;
-%D Here are Taco Hoekwater's alternatives (but
-%D vardef'd and primaried).
+vardef pow (expr x,p) = x**p enddef ;
-pi := 3.1415926 ; radian := 180/pi ; % 2pi*radian = 360 ;
+vardef tand primary x = sind(x)/cosd(x) enddef ;
+vardef cotd primary x = cosd(x)/sind(x) enddef ;
-vardef tand primary x = (sind(x)/cosd(x)) enddef ;
-vardef cotd primary x = (cosd(x)/sind(x)) enddef ;
+vardef sin primary x = sind(x*radian) enddef ;
+vardef cos primary x = cosd(x*radian) enddef ;
+vardef tan primary x = sin(x)/cos(x) enddef ;
+vardef cot primary x = cos(x)/sin(x) enddef ;
-vardef sin primary x = (sind(x*radian)) enddef ;
-vardef cos primary x = (cosd(x*radian)) enddef ;
-vardef tan primary x = (sin(x)/cos(x)) enddef ;
-vardef cot primary x = (cos(x)/sin(x)) enddef ;
+vardef asin primary x = angle((1+-+x,x)) enddef ;
+vardef acos primary x = angle((x,1+-+x)) enddef ;
+vardef atan primary x = angle(1,x) enddef ;
-vardef asin primary x = angle((1+-+x,x)) enddef ;
-vardef acos primary x = angle((x,1+-+x)) enddef ;
+vardef invsin primary x = (asin(x))/radian enddef ;
+vardef invcos primary x = (acos(x))/radian enddef ;
+vardef invtan primary x = (atan(x))/radian enddef ;
-vardef invsin primary x = ((asin(x))/radian) enddef ;
-vardef invcos primary x = ((acos(x))/radian) enddef ;
-
-vardef acosh primary x = ln(x+(x+-+1)) enddef ;
-vardef asinh primary x = ln(x+(x++1)) enddef ;
+vardef acosh primary x = ln(x+(x+-+1)) enddef ;
+vardef asinh primary x = ln(x+(x++1)) enddef ;
vardef sinh primary x = save xx ; xx = exp x ; (xx-1/xx)/2 enddef ;
vardef cosh primary x = save xx ; xx = exp x ; (xx+1/xx)/2 enddef ;
+%D Sometimes this is handy:
+
+def undashed =
+ dashed nullpicture
+enddef ;
+
%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
@@ -374,101 +385,218 @@ vardef cosh primary x = save xx ; xx = exp x ; (xx+1/xx)/2 enddef ;
%D the second argument identifier the way the shape is to be
%D drawn.
%D
-%D \starttypen
+%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 \stoptypen
+%D \stoptyping
%D
%D The a (or angle) alternative supports arbitrary angles and
%D is therefore more versatile.
%D
-%D \starttypen
+%D \starttyping
%D stripe_path_a
%D (withpen pencircle scaled 2 withcolor red)
%D (draw)
%D fullcircle xscaled 100 yscaled 40 withcolor blue;
-%D \stoptypen
+%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 The first alternative obeys:
+%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;
-
-%D When no pen dimensions are passed, the slot determines
-%D the spacing.
-%D
-%D The angle alternative is influenced by:
-
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, s_n, s_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 s_slot = 0 : stripe_slot else : s_slot fi ;
+ used_n := if s_n = 0 : stripe_n else : s_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, s_angle, s_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 s_angle = 0 : stripe_angle else : s_angle fi ;
+ used_gap := if s_gap = 0 : stripe_gap else : s_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 s_spec) (text s_draw) expr s_path =
- do_stripe_path_n (s_spec) (s_draw) (s_path)
+ do_stripe_path_n (s_spec) (s_draw) (s_path)
enddef;
def do_stripe_path_n (text s_spec) (text s_draw) (expr s_path) text s_text =
- begingroup
- save curpic, newpic, bb, pp, ww;
- picture curpic, newpic;
- path bb, pp;
- pp := s_path;
- curpic := currentpicture;
- currentpicture := nullpicture;
- s_draw pp s_text;
- bb := boundingbox currentpicture;
- newpic := currentpicture;
- currentpicture := nullpicture;
- ww := min(ypart urcorner newpic - ypart llcorner newpic,
- xpart urcorner newpic - xpart llcorner newpic);
- ww := ww/(stripe_slot*stripe_n);
- for i=1/stripe_n step 1/stripe_n until 1:
- draw point (1+i) of bb -- point (3-i) of bb
- withpen pencircle scaled ww s_spec ;
- endfor;
- for i=0 step 1/stripe_n until 1:
- draw point (3+i) of bb -- point (1-i) of bb
- withpen pencircle scaled ww s_spec;
- endfor;
- clip currentpicture to pp;
- addto newpic also currentpicture;
- currentpicture := curpic;
- addto currentpicture also newpic;
- endgroup
-enddef;
+ draw image(s_draw s_path s_text) numberstriped(3,0,0) s_spec ;
+enddef ;
def stripe_path_a (text s_spec) (text s_draw) expr s_path =
- do_stripe_path_a (s_spec) (s_draw) (s_path)
+ do_stripe_path_a (s_spec) (s_draw) (s_path)
enddef;
def do_stripe_path_a (text s_spec) (text s_draw) (expr s_path) text s_text =
- begingroup
- save curpic, newpic, pp; picture curpic, newpic; path pp ;
- pp := s_path ;
- curpic := currentpicture;
- currentpicture := nullpicture;
- s_draw pp s_text ;
- def do_stripe_rotation (expr p) =
- (currentpicture rotatedaround(center p,stripe_angle))
- enddef ;
- s_max := max
- (xpart llcorner do_stripe_rotation(currentpicture),
- xpart urcorner do_stripe_rotation(currentpicture),
- ypart llcorner do_stripe_rotation(currentpicture),
- ypart urcorner do_stripe_rotation(currentpicture));
- newpic := currentpicture;
- currentpicture := nullpicture;
- for i=-s_max-.5stripe_gap step stripe_gap until s_max:
- draw (-s_max,i)--(s_max,i) s_spec;
- endfor;
- currentpicture := do_stripe_rotation(newpic);
- clip currentpicture to pp ;
- addto newpic also currentpicture;
- currentpicture := curpic;
- addto currentpicture also newpic;
- endgroup
-enddef;
+ draw image(s_draw s_path s_text) anglestriped(3,0,0) s_spec ;
+enddef ;
%D A few normalizing macros:
%D
@@ -507,46 +635,43 @@ enddef;
% natural_width := xpart urcorner currentpicture - xpart llcorner currentpicture;
% currentpicture := currentpicture scaled (the_width/natural_width) ;
-% TODO TODO TODO TODO, not yet ok
-
primarydef p xsized w =
- (p if (bbwidth (p)>0) and (w>0) : scaled (w/bbwidth (p)) fi)
+ (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)
+ (p if (bbheight(p)>0) and (h>0) : scaled (h/bbheight(p)) fi)
enddef ;
primarydef p xysized s =
- begingroup ;
+ 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
+ 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 ;
-primarydef p sized wh =
- (p xysized wh)
-enddef ;
+let sized = xysized ;
-def xscale_currentpicture(expr w) =
- currentpicture := currentpicture xsized w ;
+def xscale_currentpicture(expr w) = % obsolete
+ currentpicture := currentpicture xsized w ;
enddef;
-def yscale_currentpicture(expr h) =
- currentpicture := currentpicture ysized h ;
+def yscale_currentpicture(expr h) = % obsolete
+ currentpicture := currentpicture ysized h ;
enddef;
-def xyscale_currentpicture(expr w, h) =
- currentpicture := currentpicture xysized (w,h) ;
+def xyscale_currentpicture(expr w, h) = % obsolete
+ currentpicture := currentpicture xysized (w,h) ;
enddef;
-def scale_currentpicture(expr w, h) =
- currentpicture := currentpicture xsized w ;
- currentpicture := currentpicture ysized h ;
+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
@@ -562,28 +687,28 @@ unitcircle := fullcircle shifted urcorner fullcircle ;
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 ;
+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 ;
+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 ;
+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 ;
+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 unitdiamond, fulldiamond ;
-unitdiamond := (.5,0)--(1,.5)--(.5,1)--(0,.5)--cycle ;
+unitdiamond := (.5,0) -- (1,.5) -- (.5,1) -- (0,.5) -- cycle ;
fulldiamond := unitdiamond shifted - center unitdiamond ;
%D More robust:
@@ -598,46 +723,49 @@ fulldiamond := unitdiamond shifted - center unitdiamond ;
%D Shorter
-primarydef p xyscaled q =
- 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
+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 ;
-%D Experimenteel, zie folder-3.tex.
+%D Some personal code that might move to another module
def set_grid(expr w, h, nx, ny) =
- boolean grid[][] ; boolean grid_full ;
- 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 ;
+ 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 ;
- endfor ;
enddef ;
vardef new_on_grid(expr _dx_, _dy_) =
- dx := _dx_ ;
- dy := _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
+ dx := _dx_ ;
+ dy := _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}.
@@ -650,79 +778,71 @@ enddef ;
%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
+ 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 :
- llcorner q -- lrcorner q -- urcorner q -- ulcorner q --
- reverse p -- ulcorner q -- cycle
+ 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
- fi
- endgroup
+ endgroup
enddef ;
boolean intersection_found ;
secondarydef p intersection_point q =
- begingroup
+ begingroup
save x_, y_ ;
(x_,y_) = p intersectiontimes q ;
if x_<0 :
- intersection_found := false ;
- center p % origin
+ intersection_found := false ;
+ center p % origin
else :
- intersection_found := true ;
- .5[point x_ of p, point y_ of q]
+ intersection_found := true ;
+ .5[point x_ of p, point y_ of q]
fi
- endgroup
+ 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)
+ (-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 tensecircle (expr width, height, offset) =
-% ((-width/2,-height/2)..(0,-height/2-offset)..(+width/2,-height/2) &
-% (+width/2,-height/2)..(+width/2+offset,0)..(+width/2,+height/2) &
-% (+width/2,+height/2)..(0,+height/2+offset)..(-width/2,+height/2) &
-% (-width/2,+height/2)..(-width/2-offset,0)..(-width/2,-height/2)..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)
+ (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 ;
%D Some colors.
-color cyan ; cyan = (0,1,1) ;
-color magenta ; magenta = (1,0,1) ;
-color yellow ; yellow = (1,1,0) ;
-
def colortype(expr c) =
if cmykcolor c : cmykcolor elseif rgbcolor c : rgbcolor else : grayscale fi
enddef ;
+
vardef whitecolor(expr c) =
if cmykcolor c : (0,0,0,0) elseif rgbcolor c : (1,1,1) else : 1 fi
enddef ;
+
vardef blackcolor(expr c) =
if cmykcolor c : (0,0,0,1) elseif rgbcolor c : (0,0,0) else : 0 fi
enddef ;
@@ -730,112 +850,74 @@ enddef ;
%D Well, this is the dangerous and naive version:
def drawfill text t =
- fill t ;
- draw 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 _c_ ; _c_ := c ;
- do_drawfill
+ path _c_ ; _c_ := c ;
+ mfun_do_drawfill
enddef ;
-def do_drawfill text t =
- draw _c_ t ;
- fill _c_ t ;
+def mfun_do_drawfill text t =
+ draw _c_ t ;
+ fill _c_ t ;
enddef;
def undrawfill expr c =
- drawfill c withcolor background
+ drawfill c withcolor background % rather useless
enddef ;
%D Moved from mp-char.mp
-vardef paired (expr d) =
- if pair d : d else : (d,d) fi
-enddef ;
-
-vardef tripled (expr d) =
- if color d : d else : (d,d,d) fi
-enddef ;
-
-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)
+vardef paired primary d =
+ if pair d : d else : (d,d) fi
enddef ;
-primarydef p urenlarged d =
- (llcorner p -- lrcorner p -- p urmoved d -- ulcorner p -- cycle)
+vardef tripled primary d =
+ if color d : d else : (d,d,d) fi
enddef ;
-primarydef p ulenlarged d =
- (llcorner p -- lrcorner p -- urcorner p -- p ulmoved d -- cycle)
-enddef ;
+% maybe secondaries:
-primarydef p llmoved d =
- ((llcorner p) shifted (-xpart paired(d),-ypart paired(d)))
-enddef ;
+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 lrmoved d =
- ((lrcorner p) shifted (+xpart paired(d),-ypart paired(d)))
-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 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 ;
+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 ;
%D Handy for testing/debugging:
-primarydef p crossed d =
+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)
+ 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)
+ 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 ;
+) enddef ;
%D Also handy (math ladders):
-vardef laddered expr p =
+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)
@@ -849,182 +931,143 @@ 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 ;
+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 ;
%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 ;
+ 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 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)
+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 ;
-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 ;
-
-%primarydef p randomized s =
-% 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 cycle
-%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 color 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 color 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 graypart s * graypart p)
- elseif pair s :
- ((xpart s + uniformdeviate (ypart s - xpart s)) * p)
+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 color 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 color 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
else :
- (uniformdeviate s * p)
+ p + uniformdeviate s
fi
- else :
- p + uniformdeviate s
- fi)
-enddef ;
+) enddef ;
%D Not perfect (alternative for interpath)
vardef interpolated(expr s, p, q) =
- save 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)
+ 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 ;
%D Interesting too:
-% primarydef p parallel s =
-% begingroup ; save q, b ; path q ; numeric b ;
-% b := xpart (lrcorner p - llcorner p) ;
-% q := p if b>0 : scaled ((b+2s)/b) fi ;
-% (q shifted (center p-center q))
-% endgroup
-% enddef ;
-
-%primarydef p parallel s =
-% begingroup ; save q, w,h ; path q ; numeric w, h ;
-% w := bbwidth(p) ; h := bbheight(p) ;
-% q := p if (w>0) and (h>0) :
-% xyscaled ((w+2*xpart paired(s))/w,(h+2*ypart paired(s))/h) fi ;
-% (q shifted (center p-center q))
-% endgroup
-%enddef ;
-
-primarydef p paralleled d =
+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 ;
+) 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)
+ 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)
+ 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 _p_ ; path _p_ ; _p_ := p xysized
- (bbwidth (p)+2(xpart paired(s)),
- bbheight(p)+2(ypart paired(s))) ;
- (_p_ shifted (center p - center _p_))
- endgroup
+ begingroup
+ save _p_ ; path _p_ ;
+ _p_ := p xysized (bbwidth(p)+2(xpart paired(s)),bbheight(p)+2(ypart paired(s))) ;
+ (_p_ shifted (center p - center _p_))
+ endgroup
enddef ;
%D Rather fundamental.
% not yet ok
-def leftrightpath(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
+vardef leftrightpath(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 = leftrightpath(p,true ) enddef ;
@@ -1033,10 +1076,10 @@ vardef rightpath expr p = leftrightpath(p,false) enddef ;
%D Drawoptions
def saveoptions =
- save _op_ ; def _op_ = enddef ;
+ save _op_ ; def _op_ = enddef ;
enddef ;
-%D Tracing.
+%D Tracing. (not yet in lexer)
let normaldraw = draw ;
let normalfill = fill ;
@@ -1046,7 +1089,6 @@ let normalfill = fill ;
def normalfill expr c = addto currentpicture contour c _op_ enddef ;
def normaldraw expr p = addto currentpicture if picture p: also p else: doublepath p withpen currentpen fi _op_ enddef ;
-
def drawlineoptions (text t) = def _lin_opt_ = t enddef ; enddef ;
def drawpointoptions (text t) = def _pnt_opt_ = t enddef ; enddef ;
def drawcontroloptions(text t) = def _ctr_opt_ = t enddef ; enddef ;
@@ -1056,13 +1098,13 @@ def drawboundoptions (text t) = def _bnd_opt_ = t enddef ; enddef ;
def drawpathoptions (text t) = def _pth_opt_ = t enddef ; enddef ;
def resetdrawoptions =
- drawlineoptions (withpen pencircle scaled 1pt withcolor .5white) ;
- drawpointoptions (withpen pencircle scaled 4pt withcolor black) ;
- drawcontroloptions(withpen pencircle scaled 2.5pt withcolor black) ;
- drawlabeloptions () ;
- draworiginoptions (withpen pencircle scaled 1pt withcolor .5white) ;
- drawboundoptions (dashed evenly _ori_opt_) ;
- drawpathoptions (withpen pencircle scaled 5pt withcolor .8white) ;
+ drawlineoptions (withpen pencircle scaled 1pt withcolor .5white) ;
+ drawpointoptions (withpen pencircle scaled 4pt withcolor black) ;
+ drawcontroloptions(withpen pencircle scaled 2.5pt withcolor black) ;
+ drawlabeloptions () ;
+ draworiginoptions (withpen pencircle scaled 1pt withcolor .5white) ;
+ drawboundoptions (dashed evenly _ori_opt_) ;
+ drawpathoptions (withpen pencircle scaled 5pt withcolor .8white) ;
enddef ;
resetdrawoptions ;
@@ -1070,96 +1112,95 @@ resetdrawoptions ;
%D Path.
def drawpath expr p =
- normaldraw p _pth_opt_
+ normaldraw p _pth_opt_
enddef ;
%D Arrow.
vardef drawarrowpath expr p =
- save autoarrows ; boolean autoarrows ; autoarrows := true ;
- drawarrow p _pth_opt_
+ save autoarrows ; boolean autoarrows ; autoarrows := true ;
+ drawarrow p _pth_opt_
enddef ;
-%def drawarrowpath expr p =
-% begingroup ;
-% save autoarrows ; boolean autoarrows ; autoarrows := true ;
-% save arrowpath ; path arrowpath ; arrowpath := p ;
-% _drawarrowpath_
-%enddef ;
-%
-%def _drawarrowpath_ text t =
-% drawarrow arrowpath _pth_opt_ t ;
-% endgroup ;
-%enddef ;
+% def drawarrowpath expr p =
+% begingroup ;
+% save autoarrows ; boolean autoarrows ; autoarrows := true ;
+% save arrowpath ; path arrowpath ; arrowpath := p ;
+% _drawarrowpath_
+% enddef ;
+%
+% def _drawarrowpath_ text t =
+% drawarrow arrowpath _pth_opt_ t ;
+% endgroup ;
+% enddef ;
def midarrowhead expr p =
- arrowhead p cutafter
- (point length(p cutafter point .5 along p)+ahlength on 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)+.5ahlength) on p) fi
+ save autoarrows ; boolean autoarrows ;
+ autoarrows := true ;
+ set_ahlength(scaled ahfactor) ; % added
+ arrowhead p if s<1 : cutafter (point (s*arclength(p)+.5ahlength) on p) fi
enddef ;
%D Points.
def drawpoint expr c =
- if string c :
- string _c_ ; _c_ := "(" & c & ")" ;
- dotlabel.urt(_c_, scantokens _c_) ;
- drawdot scantokens _c_
- else :
- dotlabel.urt("(" & decimal xpart c & "," & decimal ypart c & ")", c) ;
- drawdot c
- fi _pnt_opt_
+ if string c :
+ string _c_ ;
+ _c_ := "(" & c & ")" ;
+ dotlabel.urt(_c_, scantokens _c_) ;
+ drawdot scantokens _c_
+ else :
+ dotlabel.urt("(" & decimal xpart c & "," & decimal ypart c & ")", c) ;
+ drawdot c
+ fi _pnt_opt_
enddef ;
%D PathPoints.
-def drawpoints expr c = path _c_ ; _c_ := c ; do_drawpoints enddef ;
-def drawcontrolpoints expr c = path _c_ ; _c_ := c ; do_drawcontrolpoints enddef ;
-def drawcontrollines expr c = path _c_ ; _c_ := c ; do_drawcontrollines enddef ;
-def drawpointlabels expr c = path _c_ ; _c_ := c ; do_drawpointlabels enddef ;
+def drawpoints expr c = path _c_ ; _c_ := c ; mfun_draw_points enddef ;
+def drawcontrolpoints expr c = path _c_ ; _c_ := c ; mfun_draw_controlpoints enddef ;
+def drawcontrollines expr c = path _c_ ; _c_ := c ; mfun_draw_controllines enddef ;
+def drawpointlabels expr c = path _c_ ; _c_ := c ; mfun_draw_pointlabels enddef ;
-def do_drawpoints text t =
- for _i_=0 upto length(_c_) :
- normaldraw point _i_ of _c_ _pnt_opt_ t ;
- endfor ;
+def mfun_draw_points text t =
+ for _i_=0 upto length(_c_) :
+ normaldraw point _i_ of _c_ _pnt_opt_ t ;
+ endfor ;
enddef;
-def do_drawcontrolpoints text t =
- for _i_=0 upto length(_c_) :
- normaldraw precontrol _i_ of _c_ _ctr_opt_ t ;
- normaldraw postcontrol _i_ of _c_ _ctr_opt_ t ;
- endfor ;
+def mfun_draw_controlpoints text t =
+ for _i_=0 upto length(_c_) :
+ normaldraw precontrol _i_ of _c_ _ctr_opt_ t ;
+ normaldraw postcontrol _i_ of _c_ _ctr_opt_ t ;
+ endfor ;
enddef;
-def do_drawcontrollines text t =
- for _i_=0 upto length(_c_) :
- normaldraw point _i_ of _c_ -- precontrol _i_ of _c_ _lin_opt_ t ;
- normaldraw point _i_ of _c_ -- postcontrol _i_ of _c_ _lin_opt_ t ;
- endfor ;
+def mfun_draw_controllines text t =
+ for _i_=0 upto length(_c_) :
+ normaldraw point _i_ of _c_ -- precontrol _i_ of _c_ _lin_opt_ t ;
+ normaldraw point _i_ of _c_ -- postcontrol _i_ of _c_ _lin_opt_ t ;
+ endfor ;
enddef;
boolean swappointlabels ; swappointlabels := false ;
-def do_drawpointlabels text t =
- for _i_=0 upto length(_c_) :
- pair _u_ ; _u_ := unitvector(direction _i_ of _c_)
- rotated if swappointlabels : - fi 90 ;
- pair _p_ ; _p_ := (point _i_ of _c_) ;
- _u_ := 12 * defaultscale * _u_ ;
- normaldraw thelabel ( decimal _i_,
- _p_ shifted if cycle _c_ and (_i_=0) : - fi _u_ ) _lab_opt_ t ;
- endfor ;
+def mfun_draw_pointlabels text t =
+ for _i_=0 upto length(_c_) :
+ pair _u_ ; _u_ := unitvector(direction _i_ of _c_) rotated if swappointlabels : - fi 90 ;
+ pair _p_ ; _p_ := (point _i_ of _c_) ;
+ _u_ := 12 * defaultscale * _u_ ;
+ normaldraw thelabel ( decimal _i_, _p_ shifted if cycle _c_ and (_i_=0) : - fi _u_ ) _lab_opt_ t ;
+ endfor ;
enddef;
%D Bounding box.
def drawboundingbox expr p =
- normaldraw boundingbox p _bnd_opt_
+ normaldraw boundingbox p _bnd_opt_
enddef ;
%D Origin.
@@ -1167,10 +1208,8 @@ enddef ;
numeric originlength ; originlength := .5cm ;
def draworigin text t =
- normaldraw (origin shifted (0, originlength) --
- origin shifted (0,-originlength)) _ori_opt_ t ;
- normaldraw (origin shifted ( originlength,0) --
- origin shifted (-originlength,0)) _ori_opt_ t ;
+ normaldraw (origin shifted (0, originlength) -- origin shifted (0,-originlength)) _ori_opt_ t ;
+ normaldraw (origin shifted ( originlength,0) -- origin shifted (-originlength,0)) _ori_opt_ t ;
enddef;
%D Axis.
@@ -1178,101 +1217,108 @@ enddef;
numeric tickstep ; tickstep := 5mm ;
numeric ticklength ; ticklength := 2mm ;
-def drawxticks expr c = path _c_ ; _c_ := c ; do_drawxticks enddef ;
-def drawyticks expr c = path _c_ ; _c_ := c ; do_drawyticks enddef ;
-def drawticks expr c = path _c_ ; _c_ := c ; do_drawticks enddef ;
+def drawxticks expr c = path _c_ ; _c_ := c ; mfun_draw_xticks enddef ;
+def drawyticks expr c = path _c_ ; _c_ := c ; mfun_draw_yticks enddef ;
+def drawticks expr c = path _c_ ; _c_ := c ; mfun_draw_ticks enddef ;
% Adding eps prevents disappearance due to rounding errors.
-def do_drawxticks text t =
- for i=0 step -tickstep until xpart llcorner _c_ - eps :
- if (i<=xpart lrcorner _c_) :
- normaldraw (i,-ticklength)--(i,ticklength) _ori_opt_ t ;
- fi ;
- endfor ;
- for i=0 step tickstep until xpart lrcorner _c_ + eps :
- if (i>=xpart llcorner _c_) :
- normaldraw (i,-ticklength)--(i,ticklength) _ori_opt_ t ;
- fi ;
- endfor ;
- normaldraw (llcorner _c_ -- ulcorner _c_)
- shifted (-xpart llcorner _c_,0) _ori_opt_ t ;
+def mfun_draw_xticks text t =
+ for i=0 step -tickstep until xpart llcorner _c_ - eps :
+ if (i<=xpart lrcorner _c_) :
+ normaldraw (i,-ticklength)--(i,ticklength) _ori_opt_ t ;
+ fi ;
+ endfor ;
+ for i=0 step tickstep until xpart lrcorner _c_ + eps :
+ if (i>=xpart llcorner _c_) :
+ normaldraw (i,-ticklength)--(i,ticklength) _ori_opt_ t ;
+ fi ;
+ endfor ;
+ normaldraw (llcorner _c_ -- ulcorner _c_) shifted (-xpart llcorner _c_,0) _ori_opt_ t ;
enddef ;
-def do_drawyticks text t =
- for i=0 step -tickstep until ypart llcorner _c_ - eps :
- if (i<=ypart ulcorner _c_) :
- normaldraw (-ticklength,i)--(ticklength,i) _ori_opt_ t ;
- fi ;
- endfor ;
- for i=0 step tickstep until ypart ulcorner _c_ + eps :
- if (i>=ypart llcorner _c_) :
- normaldraw (-ticklength,i)--(ticklength,i) _ori_opt_ t ;
- fi ;
- endfor ;
- normaldraw (llcorner _c_ -- lrcorner _c_)
- shifted (0,-ypart llcorner _c_) _ori_opt_ t ;
+def mfun_draw_yticks text t =
+ for i=0 step -tickstep until ypart llcorner _c_ - eps :
+ if (i<=ypart ulcorner _c_) :
+ normaldraw (-ticklength,i)--(ticklength,i) _ori_opt_ t ;
+ fi ;
+ endfor ;
+ for i=0 step tickstep until ypart ulcorner _c_ + eps :
+ if (i>=ypart llcorner _c_) :
+ normaldraw (-ticklength,i)--(ticklength,i) _ori_opt_ t ;
+ fi ;
+ endfor ;
+ normaldraw (llcorner _c_ -- lrcorner _c_) shifted (0,-ypart llcorner _c_) _ori_opt_ t ;
enddef ;
-def do_drawticks text t =
- drawxticks _c_ t ;
- drawyticks _c_ t ;
+def mfun_draw_ticks text t =
+ drawxticks _c_ t ;
+ drawyticks _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 ;
+ draworigin ;
+ drawpath p ;
+ drawcontrollines p ;
+ drawcontrolpoints p ;
+ drawpoints p ;
+ drawboundingbox p ;
+ drawpointlabels p ;
enddef ;
%D Tracing.
def visualizeddraw expr c =
- if picture c : normaldraw c else : path _c_ ; _c_ := c ; do_visualizeddraw fi
+ if picture c : normaldraw c else : path _c_ ; _c_ := c ; do_visualizeddraw fi
enddef ;
def visualizedfill expr c =
- if picture c : normalfill c else : path _c_ ; _c_ := c ; do_visualizedfill fi
+ if picture c : normalfill c else : path _c_ ; _c_ := c ; do_visualizedfill fi
enddef ;
def do_visualizeddraw text t =
- draworigin ;
- drawpath _c_ t ;
- drawcontrollines _c_ ;
- drawcontrolpoints _c_ ;
- drawpoints _c_ ;
- drawboundingbox _c_ ;
- drawpointlabels _c_ ;
+ draworigin ;
+ drawpath _c_ t ;
+ drawcontrollines _c_ ;
+ drawcontrolpoints _c_ ;
+ drawpoints _c_ ;
+ drawboundingbox _c_ ;
+ drawpointlabels _c_ ;
enddef ;
def do_visualizedfill text t =
- if cycle _c_ : normalfill _c_ t fi ;
- draworigin ;
- drawcontrollines _c_ ;
- drawcontrolpoints _c_ ;
- drawpoints _c_ ;
- drawboundingbox _c_ ;
- drawpointlabels _c_ ;
+ if cycle _c_ : normalfill _c_ t fi ;
+ draworigin ;
+ drawcontrollines _c_ ;
+ drawcontrolpoints _c_ ;
+ drawpoints _c_ ;
+ drawboundingbox _c_ ;
+ drawpointlabels _c_ ;
enddef ;
def visualizepaths =
- let fill = visualizedfill ;
- let draw = visualizeddraw ;
+ let fill = visualizedfill ;
+ let draw = visualizeddraw ;
enddef ;
def naturalizepaths =
- let fill = normalfill ;
- let draw = normaldraw ;
+ let fill = normalfill ;
+ let draw = normaldraw ;
enddef ;
extra_endfig := extra_endfig & " 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 ;
+
%D Also handy:
extra_beginfig := extra_beginfig & " truecorners := 0 ; " ; % restores
@@ -1287,46 +1333,57 @@ boolean autoarrows ; autoarrows := false ;
numeric ahfactor ; ahfactor := 2.5 ;
def set_ahlength (text t) =
-% ahlength := (ahfactor*pen_size(_op_ t)) ; % _op_ added
-% problem: _op_ 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)) ;
+ % ahlength := (ahfactor*pen_size(_op_ t)) ; % _op_ added
+ % problem: _op_ 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)
+ 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 2(ahlength*cosd(.5ahangle)) shifted point length p of p))
+enddef;
+
+% def _finarr text t =
+% if autoarrows : set_ahlength (t) fi ;
+% draw arrowpath _apth t ; % arrowpath added
+% filldraw arrowhead _apth t ;
+% enddef;
+
def _finarr text t =
- if autoarrows : set_ahlength (t) fi ;
- draw _apth t ;
- filldraw arrowhead _apth t ;
+ if autoarrows : set_ahlength (t) fi ;
+ draw arrowpath _apth t ; % arrowpath added
+ fill arrowhead _apth t ;
+ draw arrowhead _apth t ;
enddef;
-def _findarr text t =
- if autoarrows : set_ahlength (t) fi ;
- draw _apth t ;
- fill arrowhead _apth withpen currentpen t ;
- fill arrowhead reverse _apth withpen currentpen t ;
-enddef ;
+def _finarr text t =
+ if autoarrows : set_ahlength (t) fi ;
+ draw arrowpath _apth t ; % arrowpath added
+ fill arrowhead _apth t ;
+ draw arrowhead _apth t undashed ;
+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)
+ 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 ;
@@ -1336,23 +1393,19 @@ def centerarrow (expr pat,tim,len) = pointarrow(pat,tim,len, 0) enddef ;
%D The \type {along} and \type {on} operators can be used
%D as follows:
%D
-%D \starttypen
+%D \starttyping
%D drawdot point .5 along somepath ;
%D drawdot point 3cm on somepath ;
-%D \stoptypen
+%D \stoptyping
%D
%D The number denotes a percentage (fraction).
primarydef pct along pat = % also negative
- (arctime (pct * (arclength pat)) of pat) of pat
+ (arctime (pct * (arclength pat)) of pat) of pat
enddef ;
-% primarydef len on pat =
-% (arctime len of pat) of pat
-% enddef ;
-
-primarydef len on pat =
- (arctime if len>0 : len else : (arclength(pat)+len) fi of pat) of pat
+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
@@ -1365,69 +1418,55 @@ enddef ;
% enddef ;
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
+ begingroup
+ save tap ; path tap ;
+ tap := pat cutbefore (point (xpart paired(len)) on pat) ;
+ (tap cutafter (point -(ypart paired(len)) on tap))
+ endgroup
enddef ;
%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 ;
+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 str, loc, ori) =
- save s, p, q, l ; picture s ; path p, q ; pair l ;
- interim labeloffset := freelabeloffset ;
- s := if string str : thelabel(str,loc) else : str shifted -center str shifted loc fi ;
- setbounds s to boundingbox s enlarged freelabeloffset ;
- p := fullcircle scaled (2*length(loc-ori)) shifted ori ;
- q := freesquare xyscaled (urcorner s - llcorner s) ;
-% l := point (xpart (p intersectiontimes (ori--loc))) of q ;
- l := point xpart (p intersectiontimes
- (ori--((1+eps)*arclength(ori--loc)*unitvector(loc-ori)))) 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 ;
-
-% better?
-
-vardef thefreelabel (expr str, loc, ori) =
- save s, p, q, l ; picture s ; path p, q ; pair l ;
- interim labeloffset := freelabeloffset ;
- s := if string str : thelabel(str,loc) else : str shifted -center str shifted loc fi ;
- setbounds s to boundingbox s enlarged freelabeloffset ;
- p := fullcircle scaled (2*length(loc-ori)) shifted ori ;
- q := freesquare xyscaled (urcorner s - llcorner s) ;
- l := point xpart (p intersectiontimes (ori--loc shifted (loc-ori))) of q ;
- setbounds s to boundingbox s enlarged -freelabeloffset ; % new
- %draw boundingbox s shifted -l withpen pencircle scaled .5pt withcolor red ;
- (s shifted -l)
+ save s, p, q, l ; picture s ; path p, q ; pair l ;
+ interim labeloffset := freelabeloffset ;
+ s := if string str : thelabel(str,loc) else : str shifted -center str shifted loc fi ;
+ setbounds s to boundingbox s enlarged freelabeloffset ;
+ p := fullcircle scaled (2*length(loc-ori)) shifted ori ;
+ q := freesquare xyscaled (urcorner s - llcorner s) ;
+ l := point xpart (p intersectiontimes (ori--loc shifted (loc-ori))) 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 str, loc, ori) =
- draw thefreelabel(str,loc,ori) ;
+ draw thefreelabel(str,loc,ori) ;
enddef ;
vardef freedotlabel (expr str, loc, ori) =
- interim linecap:=rounded ;
- draw loc withpen pencircle scaled freedotlabelsize ;
- draw thefreelabel(str,loc,ori) ;
+ interim linecap := rounded ;
+ draw loc withpen pencircle scaled freedotlabelsize ;
+ draw thefreelabel(str,loc,ori) ;
enddef ;
-%D \starttypen
+%D \starttyping
%D drawarrow anglebetween(line_a,line_b,somelabel) ;
-%D \stoptypen
+%D \stoptyping
-% angleoffset ; angleoffset := 0pt ;
-numeric anglelength ; anglelength := 20pt ;
-numeric anglemethod ; anglemethod := 1 ;
+newinternal angleoffset ; angleoffset := 0pt ;
+newinternal anglelength ; anglelength := 20pt ;
+newinternal anglemethod ; anglemethod := 1 ;
% vardef anglebetween (expr a, b, str) = % path path string
% save pointa, pointb, common, middle, offset ;
@@ -1466,63 +1505,66 @@ numeric anglemethod ; anglemethod := 1 ;
% enddef ;
vardef anglebetween (expr a, b, str) = % 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(str, middle, common) ; % withcolor black ;
- curve
+ 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(str, middle, common) ; % withcolor black ;
+ curve
enddef ;
% Stack
-picture currentpicturestack[] ;
-numeric currentpicturedepth ; currentpicturedepth := 0 ;
+picture mfun_current_picture_stack[] ;
+numeric mfun_current_picture_depth ;
+
+mfun_current_picture_depth := 0 ;
def pushcurrentpicture =
- currentpicturedepth := currentpicturedepth + 1 ;
- currentpicturestack[currentpicturedepth] := currentpicture ;
- currentpicture := nullpicture ;
+ 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 currentpicturedepth > 0 :
- addto currentpicturestack[currentpicturedepth] also currentpicture t ;
- currentpicture := currentpicturestack[currentpicturedepth] ;
- currentpicturedepth := currentpicturedepth - 1 ;
- fi ;
+ 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 ;
%D colorcircle(size, red, green, blue) ;
@@ -1603,71 +1645,76 @@ enddef ;
% popcurrentpicture ;
% enddef ;
-vardef colorcircle (expr size, red, green, blue) =
- save r, g, b, c, m, y, w ; save radius ;
- path r, g, b, c, m, y, w ; numeric radius ;
+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) ;
+ radius := 5cm ; pickup pencircle scaled (radius/25) ;
- transform t ; t := identity rotatedaround(origin,120) ;
+ transform t ; t := identity rotatedaround(origin,120) ;
- r := fullcircle rotated 90 scaled radius
- shifted (0,radius/4) rotatedaround(origin,135) ;
+ r := fullcircle rotated 90 scaled radius shifted (0,radius/4) rotatedaround(origin,135) ;
- b := r transformed t ; g := b transformed t ;
+ 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 ;
+ 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) ;
+ w := buildcycle(subpath(3,5) of r, subpath(3,5) of g,subpath(3,5) of b) ;
- pushcurrentpicture ;
+ 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 ;
+ 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 ;
+ for i = r,g,b,c,m,y : draw i withcolor .5white ; endfor ;
- currentpicture := currentpicture xsized size ;
+ currentpicture := currentpicture xsized size ;
- popcurrentpicture ;
+ popcurrentpicture ;
enddef ;
% 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))
+ 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 ;
% nice: currentpicture := inverted currentpicture ;
primarydef p uncolored c =
- 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 ; )
+ 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)
+ p uncolored white
enddef ;
% primarydef p softened c =
@@ -1692,45 +1739,54 @@ enddef ;
% 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
+ 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 color p :
- tripled(.30redpart p+.59greenpart p+.11bluepart 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 tripled(.30redpart i+.59greenpart i+.11bluepart i) ;
- endfor ; )
+ if color p :
+ tripled(.30redpart p+.59greenpart p+.11bluepart 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 tripled(.30redpart i+.59greenpart i+.11bluepart i) ;
+ endfor ;
+ )
fi
enddef ;
@@ -1758,10 +1814,10 @@ def condition primary b = if b : "true" else : "false" fi enddef ;
% 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
+ 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 =
@@ -1833,40 +1889,40 @@ def yshifted expr dy = shifted(0,dy) enddef ;
%
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 ;
+ 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 ;
% permits redefinition of end in macro
inner end ;
-% real fun
+% this will be redone (when needed) using scripts and backend handling
let normalwithcolor = withcolor ;
def remapcolors =
- def withcolor primary c = normalwithcolor remappedcolor(c) enddef ;
+ def withcolor primary c = normalwithcolor remappedcolor(c) enddef ;
enddef ;
def normalcolors =
- let withcolor = normalwithcolor ;
+ let withcolor = normalwithcolor ;
enddef ;
def resetcolormap =
- color color_map[][][] ;
- normalcolors ;
+ color color_map[][][] ;
+ normalcolors ;
enddef ;
resetcolormap ;
@@ -1882,15 +1938,15 @@ def g_color primary c = greenpart c enddef ;
def b_color primary c = bluepart c enddef ;
def remapcolor(expr old, new) =
- color_map[r_color old][g_color old][b_color old] := new ;
+ color_map[redpart old][greenpart old][bluepart old] := new ;
enddef ;
def remappedcolor(expr c) =
- if known color_map[r_color c][g_color c][b_color c] :
- color_map[r_color c][g_color c][b_color c]
- else :
- c
- fi
+ if known color_map[redpart c][greenpart c][bluepart c] :
+ color_map[redpart c][greenpart c][bluepart c]
+ else :
+ c
+ fi
enddef ;
% def refill suffix c = do_repath (1) (c) enddef ;
@@ -1930,11 +1986,11 @@ 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 := repathed (0,p) enddef ;
-def refill suffix p = p := repathed (1,p) enddef ;
-def redraw suffix p = p := repathed (2,p) enddef ;
-def retext suffix p = p := repathed (3,p) enddef ;
-def untext suffix p = p := repathed (4,p) enddef ;
+def recolor suffix p = p := repathed (0,p) enddef ;
+def refill suffix p = p := repathed (1,p) enddef ;
+def redraw suffix p = p := repathed (2,p) enddef ;
+def retext suffix p = p := repathed (3,p) enddef ;
+def untext suffix p = p := repathed (4,p) enddef ;
% primarydef p recolored t = repathed(0,p) t enddef ;
% primarydef p refilled t = repathed(1,p) t enddef ;
@@ -1997,69 +2053,80 @@ def reprocess suffix p = p := repathed (22,p) enddef ; % no attributes
% also 11 and 12
vardef repathed (expr mode, p) text t =
- begingroup ;
- if mode=0 : save withcolor ; remapcolors ; fi ;
- save _p_, _pp_, _ppp_, _f_, _b_, _t_ ;
- picture _p_, _pp_, _ppp_ ; color _f_ ; path _b_ ; transform _t_ ;
- _b_ := boundingbox p ; _p_ := nullpicture ;
- for i within p :
- _f_ := (redpart i, greenpart i, bluepart i) ;
- if bounded i :
- _pp_ := repathed(mode,i) t ;
- setbounds _pp_ to pathpart i ;
- addto _p_ also _pp_ ;
- elseif clipped i :
- _pp_ := repathed(mode,i) t ;
- clip _pp_ to pathpart i ;
- addto _p_ also _pp_ ;
- elseif stroked i :
- if mode=21 :
- _ppp_ := i ; % indirectness is needed
- addto _p_ also image(scantokens(t & " pathpart _ppp_")
- dashed dashpart i withpen penpart i
- withcolor _f_ ; ) ;
- elseif mode=22 :
- _ppp_ := i ; % indirectness is needed
- addto _p_ also image(scantokens(t & " pathpart _ppp_")) ;
- else :
- addto _p_ doublepath pathpart i
- dashed dashpart i withpen penpart i
- withcolor _f_ % (redpart i, greenpart i, bluepart i)
- if mode=2 : t fi ;
- fi ;
- elseif filled i :
- if mode=11 :
- _ppp_ := i ; % indirectness is needed
- addto _p_ also image(scantokens(t & " pathpart _ppp_")
- withcolor _f_ ; ) ;
- elseif mode=12 :
- _ppp_ := i ; % indirectness is needed
- addto _p_ also image(scantokens(t & " pathpart _ppp_")) ;
- else :
- addto _p_ contour pathpart i
- withcolor _f_
- if (mode=1) and (_f_<>refillbackground) : t fi ;
- fi ;
- elseif textual i : % textpart i <> "" :
- if mode <> 4 :
- % transform _t_ ;
- % (xpart _t_, xxpart _t_, xypart _t_) = (xpart i, xxpart i, xypart i) ;
- % (ypart _t_, yypart _t_, yxpart _t_) = (ypart i, yypart i, yxpart i) ;
- % addto _p_ also
- % textpart i infont fontpart i % todo : other font
- % transformed _t_
- % withpen penpart i
- % withcolor _f_
- % if mode=3 : t fi ;
- addto _p_ also i if mode=3 : t fi ;
- fi ;
- else :
- addto _p_ also i ;
+ begingroup ;
+ if mode = 0 :
+ save withcolor ;
+ remapcolors ;
fi ;
- endfor ;
- setbounds _p_ to _b_ ;
- _p_
- endgroup
+ save _p_, _pp_, _ppp_, _f_, _b_, _t_ ;
+ picture _p_, _pp_, _ppp_ ; color _f_ ; path _b_ ; transform _t_ ;
+ _b_ := boundingbox p ;
+ _p_ := nullpicture ;
+ for i within p :
+ _f_ := (redpart i, greenpart i, bluepart i) ;
+ if bounded i :
+ _pp_ := repathed(mode,i) t ;
+ setbounds _pp_ to pathpart i ;
+ addto _p_ also _pp_ ;
+ elseif clipped i :
+ _pp_ := repathed(mode,i) t ;
+ clip _pp_ to pathpart i ;
+ addto _p_ also _pp_ ;
+ elseif stroked i :
+ if mode=21 :
+ _ppp_ := i ; % indirectness is needed
+ addto _p_ also image(scantokens(t & " pathpart _ppp_")
+ dashed dashpart i withpen penpart i
+ withcolor _f_ ; ) ;
+ elseif mode=22 :
+ _ppp_ := i ; % indirectness is needed
+ addto _p_ also image(scantokens(t & " pathpart _ppp_")) ;
+ else :
+ addto _p_ doublepath pathpart i
+ dashed dashpart i withpen penpart i
+ withcolor _f_ % (redpart i, greenpart i, bluepart i)
+ if mode = 2 :
+ t
+ fi ;
+ fi ;
+ elseif filled i :
+ if mode=11 :
+ _ppp_ := i ; % indirectness is needed
+ addto _p_ also image(scantokens(t & " pathpart _ppp_")
+ withcolor _f_ ; ) ;
+ elseif mode=12 :
+ _ppp_ := i ; % indirectness is needed
+ addto _p_ also image(scantokens(t & " pathpart _ppp_")) ;
+ else :
+ addto _p_ contour pathpart i
+ withcolor _f_
+ if (mode=1) and (_f_<>refillbackground) :
+ t
+ fi ;
+ fi ;
+ elseif textual i : % textpart i <> "" :
+ if mode <> 4 :
+ % transform _t_ ;
+ % (xpart _t_, xxpart _t_, xypart _t_) = (xpart i, xxpart i, xypart i) ;
+ % (ypart _t_, yypart _t_, yxpart _t_) = (ypart i, yypart i, yxpart i) ;
+ % addto _p_ also
+ % textpart i infont fontpart i % todo : other font
+ % transformed _t_
+ % withpen penpart i
+ % withcolor _f_
+ % if mode=3 : t fi ;
+ addto _p_ also i
+ if mode=3 :
+ t
+ fi ;
+ fi ;
+ else :
+ addto _p_ also i ;
+ fi ;
+ endfor ;
+ setbounds _p_ to _b_ ;
+ _p_
+ endgroup
enddef ;
% After a question of Denis on how to erase a z variable, Jacko
@@ -2087,11 +2154,11 @@ 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
+ if false for $ := s : or true endfor :
+ forsuffixes $ := s : x$ := whatever ; y$ := whatever ; endfor ;
+ else :
+ save x, y ;
+ fi
enddef ;
% so now we can say: clearxy ; as well as clearxy 1, 2, 3 ;
@@ -2103,48 +2170,68 @@ enddef ;
% 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)
+ (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)
+ ((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 ;
% cmyk color support
vardef cmyk(expr c,m,y,k) =
- (1-c-k,1-m-k,1-y-k)
+ (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
+% 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
+% 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
@@ -2153,122 +2240,87 @@ enddef ;
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 ;
+ 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 ;
- fi ;
enddef ;
% result from metafont discussion list (denisr/boguslawj)
-def ]] = ] ] enddef ; def ]]] = ] ] ] enddef ;
-def [[ = [ [ enddef ; def [[[ = [ [ [ enddef ;
+def [[ = [ [ enddef ; def [[[ = [ [ [ enddef ;
+def ]] = ] ] enddef ; def ]]] = ] ] ] enddef ;
-% not perfect, but useful since it removes redundant points.
+let == = = ;
-% vardef dostraightened(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 : % evt hier ook round
-% 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 ;
+% added
-% vardef simplified expr p =
-% (reverse dostraightened(+1,dostraightened(+1,reverse p)))
-% enddef ;
+picture oddly ; % evenly already defined
-% vardef unspiked expr p =
-% (reverse dostraightened(-1,dostraightened(-1,reverse p)))
-% enddef ;
+evenly := dashpattern(on 3 off 3) ;
+oddly := dashpattern(off 3 on 3) ;
+
+% not perfect, but useful since it removes redundant points.
-% simplified : remove same points as well as redundant points
-% unspiked : remove same points as well as areas with zero distance
-
-vardef dostraightened(expr sign, p) =
- save _p_, _q_ ; path _p_, _q_ ;
- _p_ := p ;
- forever :
- _q_ := dodostraightened(sign, _p_) ;
- exitif length(_p_) = length(_q_) ;
- _p_ := _q_ ;
- endfor ;
- _q_
-enddef ;
-
-vardef dodostraightened(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 ;
+vardef mfun_straightened(expr sign, p) =
+ save _p_, _q_ ; path _p_, _q_ ;
+ _p_ := p ;
+ forever :
+ _q_ := mfun_do_straightened(sign, _p_) ;
+ exitif length(_p_) = length(_q_) ;
+ _p_ := _q_ ;
endfor ;
- save n, ok ; numeric n ; boolean ok ;
- n := length(pp) ; ok := false ;
- if n>2 :
- for i=0 upto n : % evt hier ook round
- 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
+ _q_
+enddef ;
+
+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 : % evt hier ook round
+ 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
- endfor
- if ok and (cycle p) : -- cycle fi
else :
- pp
+ p
fi
- else :
- p
- fi
enddef ;
-% vardef simplified expr p =
-% dostraightened(+1,p)
-% enddef ;
-
-% vardef unspiked expr p =
-% dostraightened(-1,p)
-% enddef ;
-
-vardef simplified expr p =
- (reverse dostraightened(+1,dostraightened(+1,reverse p)))
-enddef ;
+vardef simplified expr p = (
+ reverse mfun_straightened(+1,mfun_straightened(+1,reverse p))
+) enddef ;
-vardef unspiked expr p =
- (reverse dostraightened(-1,dostraightened(-1,reverse p)))
-enddef ;
+vardef unspiked expr p = (
+ reverse mfun_straightened(-1,mfun_straightened(-1,reverse p))
+) enddef ;
% path p ;
% p := (2cm,1cm) -- (2cm,1cm) -- (2cm,1cm) -- (3cm,1cm) --
@@ -2289,213 +2341,197 @@ enddef ;
path originpath ; originpath := origin -- cycle ;
vardef unitvector primary z =
- if abs z = abs origin : z else : z/abs z fi
+ if abs z = abs origin : z else : z/abs z fi
enddef;
% also new
-vardef anchored@#(expr p, z) =
- p shifted (z + (labxf@#*lrcorner p + labyf@#*ulcorner p
- + (1-labxf@#-labyf@#)*llcorner p))
-enddef ;
+% vardef anchored@#(expr p, z) = % maybe use the textext variant
+% p shifted (z + (labxf@#*lrcorner p + labyf@#*ulcorner p + (1-labxf@#-labyf@#)*llcorner p))
+% enddef ;
% epsed(1.2345)
vardef epsed (expr e) =
- e if e>0 : + eps elseif e<0 : - eps fi
+ e if e>0 : + eps elseif e<0 : - eps fi
enddef ;
% handy
def withgray primary g =
- withcolor (g,g,g)
+ withcolor (g,g,g)
enddef ;
% for metafun
-if unknown darkred : color darkred ; darkred := .625(1,0,0) 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 := .875(1,1,1) fi ;
+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 := .875(1,1,1) fi ;
% an improved plain mp macro
vardef center primary p =
- if pair p : p else : .5[llcorner p, urcorner p] fi
+ if pair p :
+ p
+ else :
+ .5[llcorner p, urcorner p]
+ fi
enddef;
% 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)
+ 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
+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
- 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 ;
% 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 ;
+ 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 ;
% makes a (line) into an infinite one (handy for calculating
% intersection points
vardef infinite expr p =
- (-infinity*unitvector(direction 0 of 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)
+ -- p --
+ +infinity*unitvector(direction length(p) of p)
+ shifted point length(p) of p)
enddef ;
% obscure macros: create var from string and replace - and :
-% (needed for process color id's)
+% (needed for process color id's) .. will go away
-string _clean_ascii_[] ;
+string mfun_clean_ascii[] ;
def register_dirty_chars(expr str) =
for i = 0 upto length(str)-1 :
- _clean_ascii_[ASCII substring(i,i+1) of str] := "_" ;
+ 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 _clean_ascii_[ASCII si] : _clean_ascii_[ASCII si] else : si fi ;
- endfor ;
- ss
+ 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 ;
+ 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 ;
+ scantokens(cleanstring(s)) := v ;
enddef ;
vardef getunstringed (expr s) =
- scantokens(cleanstring(s))
+ scantokens(cleanstring(s))
enddef ;
vardef unstringed (expr s) =
- expandafter known scantokens(cleanstring(s))
-enddef ;
-
-% new
-
-% vardef colorpart(expr i) =
-% (redpart i, greenpart i,bluepart i)
-% enddef ;
-
-vardef colorpart(expr c) =
- if colormodel c = 3 :
- graypart c
- elseif colormodel c = 5 :
- (redpart c,greenpart c,bluepart c)
- elseif colormodel c = 7 :
- (cyanpart c,magentapart c,yellowpart c,blackpart c)
- fi
+ 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)=
- begingroup
- save defaultfont, defaultscale, size ;
- string defaultfont ; defaultfont := "cmtt10"; % i.e. infofont
- numeric defaultscale ; defaultscale := 8pt / fontsize defaultfont;
- numeric size ; size := 2pt ;
+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 ;
+ 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(decimal x, (x*DeltaX,-size));
+ label.bot(textext("\infofont " & decimal x), (x*DeltaX,-size)) ;
endfor ;
for y=MinY upto MaxY:
- label.lft(decimal y, (-size,y*DeltaY)) ;
+ label.lft(textext("\infofont " & decimal y), (-size,y*DeltaY)) ;
endfor ;
- endgroup
+ endgroup
enddef;
% new, handy for:
@@ -2525,26 +2561,24 @@ enddef;
%
% \useMPgraphic{map}{n=3}
-vardef phantom (text t) =
- picture _p_ ; _p_ := image(t) ; addto _p_ also currentpicture ;
- setbounds currentpicture to boundingbox _p_ ;
+vardef phantom (text t) = % to be checked
+ picture _p_ ;
+ _p_ := image(t) ;
+ addto _p_ also currentpicture ;
+ setbounds currentpicture to boundingbox _p_ ;
enddef ;
vardef c_phantom (expr b) (text t) =
- if b :
- picture _p_ ; _p_ := image(t) ; addto _p_ also currentpicture ;
- setbounds currentpicture to boundingbox _p_ ;
- else :
- t ;
- fi ;
+ if b :
+ picture _p_ ;
+ _p_ := image(t) ;
+ addto _p_ also currentpicture ;
+ setbounds currentpicture to boundingbox _p_ ;
+ else :
+ t ;
+ fi ;
enddef ;
-% mark paths (for external progs to split)
-
-% def somepath(expr p)
-% p
-% enddef ;
-
%D Handy:
def break =
@@ -2553,27 +2587,228 @@ enddef ;
%D New too:
-primarydef p xstretched w =
- (p if (bbwidth (p)>0) and (w>0) : xscaled (w/bbwidth (p)) fi)
-enddef ;
+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 ;
+primarydef p ystretched h = (
+ p if (bbheight(p)>0) and (h>0) : yscaled (h/bbheight(p)) fi
+) enddef ;
primarydef p snapped s =
- hide ( if path p :
- forever :
- exitif (bbheight(p) <= s) and (bbwidth(p) <= s) ;
- p := p scaled (1/2) ;
- endfor ;
- elseif numeric p :
- forever :
- exitif p <= s ;
- p := p scaled (1/2) ;
+ hide (
+ if path p :
+ forever :
+ exitif (bbheight(p) <= s) and (bbwidth(p) <= s) ;
+ p := p scaled (1/2) ;
+ endfor ;
+ elseif numeric p :
+ forever :
+ exitif p <= s ;
+ p := p scaled (1/2) ;
+ endfor ;
+ fi ;
+ )
+ p
+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 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 bcomponent expr p = if cmykcolor p : blackpart p elseif rgbcolor p : 0 else : p fi enddef ;
+
+% 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 imagedata) text decoration =
+ save currentpicture ;
+ picture currentpicture ;
+ currentpicture := nullpicture ;
+ imagedata ;
+ currentpicture
+enddef ;
+
+
+if metapostversion < 1.770 :
+
+ 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
+ decoration
+ elseif filled i :
+ contour pathpart i
+ withpen penpart i
+ withcolor colorpart i
+ decoration
+ elseif textual i :
+ also i
+ withcolor colorpart i
+ decoration
+ else :
+ also i
+ fi
+ ;
+ endfor ;
+ currentpicture
+ enddef ;
+
+else:
+
+ 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 ;
+
+fi ;
+
+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 ;
- fi ; )
- p
+ currentpicture
enddef ;
+% 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 ;
+
+%D New helpers:
+
+def beginglyph(expr unicode, width, height, depth) =
+ beginfig(unicode) ; % the number is irrelevant
+ charcode := unicode ;
+ charwd := width ;
+ charht := height ;
+ chardp := depth ;
+enddef ;
+
+def endglyph =
+ setbounds currentpicture to (boundingbox unitsquare xscaled charwd yscaled (charht + chardp) shifted (0,-chardp)) ;
+ if known charscale :
+ currentpicture := currentpicture scaled charscale ;
+ fi ;
+ endfig ;
+enddef ;
+
+%D Dimensions have bever 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 ;" ;
+
let dump = relax ;
diff --git a/metapost/context/base/mp-tool.mpiv b/metapost/context/base/mp-tool.mpiv
index 53e163e07..4ca2ea0f9 100644
--- a/metapost/context/base/mp-tool.mpiv
+++ b/metapost/context/base/mp-tool.mpiv
@@ -1220,7 +1220,7 @@ enddef ;
extra_endfig := extra_endfig & " naturalizepaths ; " ;
-%D Noce tracer:
+%D Nice tracer:
def drawboundary primary p =
draw p dashed evenly withcolor white ;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-23 07:37:39 +0000