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Diffstat (limited to 'metapost/context/base/mp-shap.mp')
| -rw-r--r-- | metapost/context/base/mp-shap.mp | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/metapost/context/base/mp-shap.mp b/metapost/context/base/mp-shap.mp new file mode 100644 index 000000000..0f5fe431d --- /dev/null +++ b/metapost/context/base/mp-shap.mp @@ -0,0 +1,307 @@ +%D \module +%D [ file=mp-shap.mp, +%D version=2000.05.31, +%D title=\CONTEXT\ \METAPOST\ graphics, +%D subtitle=shapes, +%D author=Hans Hagen, +%D date=\currentdate, +%D copyright={PRAGMA / Hans Hagen \& Ton Otten}] +%C +%C This module is part of the \CONTEXT\ macro||package and is +%C therefore copyrighted by \PRAGMA. See licen-en.pdf for +%C details. + +if unknown context_tool : input mp-tool ; fi ; +if known context_shap : endinput ; fi ; + +boolean context_shap ; context_shap := true ; + +vardef some_shape_path (expr type) = + + begingroup ; + + save border, xradius, yradius, + normal, mirror, rotate, + lc, rc, tc, bc, ll, lr, ur, ul, + llx, lrx, urx, ulx, lly, lry, ury, uly ; + + path border ; + + xradius := .15 ; xxradius := .10 ; + yradius := .15 ; yyradius := .10 ; + + pair ll ; ll := llcorner (unitsquare shifted (-.5,-.5)) ; + pair lr ; lr := lrcorner (unitsquare shifted (-.5,-.5)) ; + pair ur ; ur := urcorner (unitsquare shifted (-.5,-.5)) ; + pair ul ; ul := ulcorner (unitsquare shifted (-.5,-.5)) ; + + pair llx ; llx := ll shifted (xradius,0) ; + pair lly ; lly := ll shifted (0,yradius) ; + + pair lrx ; lrx := lr shifted (-xradius,0) ; + pair lry ; lry := lr shifted (0,yradius) ; + + pair urx ; urx := ur shifted (-xradius,0) ; + pair ury ; ury := ur shifted (0,-yradius) ; + + pair ulx ; ulx := ul shifted (xradius,0) ; + pair uly ; uly := ul shifted (0,-yradius) ; + + pair llxx ; llxx := ll shifted (xxradius,0) ; + pair llyy ; llyy := ll shifted (0,yyradius) ; + + pair lrxx ; lrxx := lr shifted (-xxradius,0) ; + pair lryy ; lryy := lr shifted (0,yyradius) ; + + pair urxx ; urxx := ur shifted (-xxradius,0) ; + pair uryy ; uryy := ur shifted (0,-yyradius) ; + + pair ulxx ; ulxx := ul shifted (xxradius,0) ; + pair ulyy ; ulyy := ul shifted (0,-yyradius) ; + + pair lc ; lc := ll shifted (0,.5) ; + pair rc ; rc := lr shifted (0,.5) ; + pair tc ; tc := ul shifted (.5,0) ; + pair bc ; bc := ll shifted (.5,0) ; + + def mirror (expr p) = + p rotatedaround(origin,180) + enddef ; + + def normal (expr p ) = + p + enddef ; + + def rotate (expr p) = + p rotated 45 + enddef ; + + if type= 0 : + border := normal (origin--cycle) ; + + elseif type= 5 : + border := normal (llx--lrx{right}...rc...{left}urx--ulx{left}...lc...{right}cycle) ; + elseif type= 6 : + border := normal (ll--lrx{right}...rc...{left}urx--ul--cycle) ; + elseif type= 7 : + border := mirror (ll--lrx{right}...rc...{left}urx--ul--cycle) ; + elseif type= 8 : + border := normal (lr--ury{up}...tc...{down}uly--ll--cycle) ; + elseif type= 9 : + border := mirror (lr--ury{up}...tc...{down}uly--ll--cycle) ; + elseif type=10 : + border := normal (ll--lr--ur--ul--ll--ur--ul--ll--cycle) ; + elseif type=11 : + border := normal (ll--lr--ur--ul--ll--lr--ul--ll--cycle) ; + elseif type=12 : + border := normal (ll--lrx--ur--ulx--cycle) ; + elseif type=13 : + border := normal (llx--lr--urx--ul--cycle) ; + elseif type=14 : + border := normal (lly--bc--lry--ury--tc--uly--cycle) ; + elseif type=15 : + border := normal (llx--lrx--rc--urx--ulx--lc--cycle) ; + elseif type=16 : + border := normal (ll--lrx--rc--urx--ul--cycle) ; + elseif type=17 : + border := mirror (ll--lrx--rc--urx--ul--cycle) ; + elseif type=18 : + border := normal (lr--ury--tc--uly--ll--cycle) ; + elseif type=19 : + border := mirror (lr--ury--tc--uly--ll--cycle) ; + elseif type=20 : + border := normal (ll--lr--ur--ul--ll--llxx--ulxx--ul--ll-- + lr--ur--urxx--lrxx--cycle) ; + elseif type=21 : + border := normal (ul--ll--lr--ur--ul--ulyy--uryy--ur--ul-- + ll--lr--lryy--llyy--cycle) ; + elseif type=22 : + border := normal (ll--lrx--lry--ur--ulx--uly--cycle) ; + elseif type=23 : + border := normal (llx--lr--ury--urx--ul--lly--cycle) ; + elseif type=24 : + border := normal (ll--lr--ur--ul--cycle) ; + elseif type=25 : + border := normal (llx--lrx--lry--ury--urx--ulx--uly--lly--cycle) ; + elseif type=26 : + border := normal (ll--lrx--lry--ur--ul--cycle) ; + elseif type=27 : + border := mirror (ll--lr--ury--urx--ul--cycle) ; + elseif type=28 : + border := normal (ll--lr--ury--urx--ul--cycle) ; + elseif type=29 : + border := mirror (ll--lrx--lry--ur--ul--cycle) ; + elseif type=30 : + border := rotate (bc{right}...{up}rc...tc{left}...{down}lc...{right}bc & + bc--tc & tc{left}..{down}lc & lc--rc & + rc{up}..tc{left}...{down}lc...{right}bc & cycle) ; + elseif type=31 : + border := normal (bc{right}...{up}rc...tc{left}...{down}lc...{right}bc & + bc--tc & tc{left}..{down}lc & lc--rc & + rc{up}..tc{left}...{down}lc...{right}bc & cycle) ; + elseif type=32 : + border := normal (ll{right}...{right}lry--ur--ul--ll--cycle) ; + elseif type=33 : + border := normal (ll{right}...{right}lry--ur--ul--ll--cycle + --ul--ulx--ulx shifted(0,yyradius) + --ur shifted(yyradius,yyradius) + --lry shifted(yyradius,yyradius) + --lry shifted(0,yyradius) + --ur--ul--cycle ) ; + elseif type=34 : + border := normal (uly..tc..ury & + ury..tc shifted (0,-2yradius)..uly & + uly--lly & + lly..bc..lry & + lry--ury & + ury..tc shifted (0,-2yradius)..uly & cycle ) ; + elseif type=35 : + border := normal (bc{right}...rc{up}...tc{left}...lc{down}...cycle) ; + elseif type=36 : + border := normal (ul--tc{right}..rc{down}..{left}bc--ll & + ll..(xpart llx, ypart lc)..ul & cycle) ; + elseif type=37 : + border := mirror (ul--tc{right}..rc{down}..{left}bc--ll & + ll..(xpart llx, ypart lc)..ul & cycle) ; + elseif type=38 : + border := normal (ll--lc{up}..tc{right}..{down}rc--lr & + lr..(xpart bc, ypart lly)..ll & cycle) ; + elseif type=39 : + border := mirror (ll--lc{up}..tc{right}..{down}rc--lr & + lr..(xpart bc, ypart lly)..ll & cycle) ; + elseif type=40 : + border := normal (ll--lr--ur--ul--ll--ur--ul--ll--lr--ul--ll--cycle) ; + elseif type=41 : + border := normal (ll--lr--ur--ul--ll--lr--rc--lc--ll--bc--tc--ul--ll & cycle) ; + elseif type=42 : + border := normal (ll--lr--origin shifted (+epsilon,0)-- + ur--ul--origin shifted (-epsilon,0)--cycle) ; + elseif type=43 : + border := normal (ll--ul--origin shifted (0,+epsilon)-- + ur--lr--origin shifted (0,-epsilon)--cycle) ; + elseif type=45 : + border := normal (bc--rc--tc--lc--cycle) ; + elseif type=46 : + border := normal (ll--ul--rc--cycle) ; + elseif type=47 : + border := mirror (ll--ul--rc--cycle) ; + elseif type=48 : + border := mirror (ul--ur--bc--cycle) ; + elseif type=49 : + border := normal (ul--ur--bc--cycle) ; + + elseif type=56 : + border := normal (ll--lry--ury--ul--cycle) ; + elseif type=57 : + border := mirror (ll--lry--ury--ul--cycle) ; + elseif type=58 : + border := normal (ll--ulx--urx--lr--cycle) ; + elseif type=59 : + border := mirror (ll--ulx--urx--lr--cycle) ; + + elseif type=61 : + border := normal (fullcircle scaled (1.5*yradius) xscaled (grid_height/grid_width)) ; + elseif type=62 : + border := normal (fullcircle scaled (2.0*yradius) xscaled (grid_height/grid_width)) ; + + elseif type=66 : + border := normal (rc--origin shifted ( epsilon,0) --cycle & + rc--origin --cycle ) ; + elseif type=67 : + border := normal (lc--origin shifted (-epsilon,0) --cycle & + lc--origin --cycle ) ; + elseif type=68 : + border := normal (tc--origin shifted (0, epsilon) --cycle & + tc--origin --cycle ) ; + elseif type=69 : + border := normal (bc--origin shifted (0,-epsilon) --cycle & + bc--origin --cycle ) ; + + elseif type=75 : + border := mirror (lly--lry--ury--uly--cycle) ; + elseif type=76 : + border := mirror (ll--lr--ur--uly--cycle) ; + elseif type=77 : + border := mirror (ll--lr--ury--ul--cycle) ; + elseif type=78 : + border := mirror (lly--lr--ur--ul--cycle) ; + elseif type=79 : + border := mirror (ll--lry--ur--ul--cycle) ; + + else : + border := normal (origin--cycle) ; + %border := normal (ll--lr--ur--ul--cycle) ; + fi ; + + border + + endgroup + +enddef; + +def some_shape ( expr shape_type , + shape_width , + shape_height , + shape_linewidth , + shape_linecolor , + shape_fillcolor ) = + + path p ; p := + some_shape_path (shape_type) + xscaled shape_width + yscaled shape_height ; + + pickup pencircle scaled shape_linewidth ; + + fill p withcolor shape_fillcolor ; + draw p withcolor shape_linecolor ; + +enddef ; + +vardef drawshape (expr t, p, lw, lc, fc) = + save pp ; + if t>1 : % normal shape + path pp ; + pp := some_shape_path(t) xyscaled(bbwidth(p), bbheight(p)) shifted center p ; + fill pp withcolor fc ; + draw pp withpen pencircle scaled lw withcolor lc ; + elseif t=1 : % background only + path pp ; + pp := fullsquare xyscaled(bbwidth(p), bbheight(p)) shifted center p ; + fill pp withcolor fc ; + else : % dimensions only + picture pp ; pp := nullpicture ; + setbounds pp to fullsquare xyscaled(bbwidth(p), bbheight(p)) shifted center p ; + draw pp ; + fi ; +enddef ; + +vardef drawline (expr t, p, lw, lc) = + if (t>0) and (length(p)>1) : + saveoptions ; + drawoptions(withpen pencircle scaled lw withcolor lc) ; + draw p ; + if t = 1 : + draw arrowheadonpath(p,1) ; + elseif t = 2 : + draw arrowheadonpath(reverse p,1) ; + elseif t = 3 : + for $ = p,reverse p : draw arrowheadonpath($,1) ; endfor ; + elseif t = 11 : + draw arrowheadonpath(p,1/2) ; + elseif t = 12 : + draw arrowheadonpath(reverse p,1/2) ; + elseif t = 13 : + for $=p,reverse p : draw arrowheadonpath($,1) ; endfor ; + for $=p,reverse p : draw arrowheadonpath($,3/4) ; endfor ; + elseif t = 21 : + for $=1/5,1/2,4/5 : draw arrowheadonpath(p,$) ; endfor ; + elseif t = 22 : + for $=1/5,1/2,4/5 : draw arrowheadonpath(reverse p,$) ; endfor ; + elseif t = 23 : + for $=p,reverse p : draw arrowheadonpath($,1/4) ; endfor ; + fi ; + fi ; +enddef ; + +endinput ; |