1 %!PS-Adobe-1.0: music-drawing-routines.ps
3 % Functions for direct and embedded PostScript
5 /blot-diameter { lilypondpaperblotdiameter } bind def
13 1 copy mul exch 1 copy mul add sqrt
16 % FIXME. translate to middle of box.
17 % Nice rectangle with rounded corners
18 /draw_box % breapth width depth height
20 currentdict /testing known {
21 %% real thin lines for testing
24 /blot blot-diameter def
31 blot 2 div sub /h exch def
32 blot 2 div sub /d exch def
33 blot 2 div sub /w exch def
34 blot 2 div sub /b exch def
42 currentdict /testing known {
43 %% outline only, for testing:
46 closepath gsave stroke grestore fill
50 % Nice beam with rounded corners
51 /draw_beam % slope width thick
53 currentdict /testing known {
54 %% real thin lines for testing
57 /blot blot-diameter def
68 blot 2 div t 2 div neg moveto
74 currentdict /testing known {
75 %% outline only, for testing:
78 closepath gsave stroke grestore fill
82 /draw_repeat_slash % width slope thick
90 beamthick beamthick slope div euclidean_length
94 width slope width mul rlineto
96 % width neg width angle sin mul neg rlineto
100 /draw_hairpin % width start_h end_h thick
117 /draw_tuplet % height gap dx dy thick dir
126 /tuplet_gapx exch def
128 tuplet_dy tuplet_dx div tuplet_gapx mul /tuplet_gapy exch def
131 0 tuplet_h neg dir mul moveto
133 tuplet_dx tuplet_gapx sub 2 div
134 tuplet_dy tuplet_gapy sub 2 div lineto
135 tuplet_dx tuplet_gapx add 2 div
136 tuplet_dy tuplet_gapy add 2 div moveto
137 tuplet_dx tuplet_dy lineto
138 tuplet_dx tuplet_dy tuplet_h dir neg mul add lineto
142 /draw_ez_ball % ch letter_col ball_col font
145 findfont 0.7 scalefont setfont
149 0.5 0 0.5 0 360 arc closepath fill stroke
154 0.5 0 0.4 0 360 arc closepath
159 % 0.25 is empiric centering. Change to taste
165 % Simple, but does it work everywhere?
166 % Han-Wen reports that one printer (brand?) at cs.uu.nl chokes on this,
167 % reverted for now -- jcn
169 % The filled circles are drawn by setting the linewidth
170 % to 2*radius and drawing a point.
171 /simple_draw_ez_ball % ch letter_col ball_col font
174 findfont 0.85 scalefont setfont
175 /origin { 0.45 0 } def
187 % 0.25 is empiric centering. Change to taste
194 /draw_volta % h w thick vert_start vert_end
209 volta_w volta_h lineto
216 % this is for drawing slurs.
217 /draw_bezier_sandwich % thickness controls
230 /draw_dashed_line % dash thickness dx dy
241 /draw_dashed_slur % dash thickness controls
258 /traject_alpha exch def
259 traject_ds traject_alpha sin mul add
261 traject_ds traject_alpha cos mul add
272 bracket_thick arch_height add half_height arch_thick sub arch_width add
273 arch_angle arch_height -0.15 mul bracket_traject
275 bracket_thick 0.5 mul half_height
276 0 arch_height 0.5 mul bracket_traject
280 bracket_thick half_height arch_thick sub
281 0 arch_height 0.4 mul bracket_traject
283 bracket_thick arch_height add half_height arch_thick sub arch_width add
284 arch_angle arch_height -0.25 mul bracket_traject
286 bracket_thick arch_height add half_height arch_thick sub arch_width add
288 bracket_thick half_height arch_thick sub
307 /draw_bracket % arch_angle arch_width arch_height bracket_height arch_thick bracket_thick
311 /bracket_thick exch def
313 /bracket_height exch def
314 /arch_height exch def
318 bracket_height 2 div bracket_thick add /half_height exch def
319 bracket_thick 0.5 mul setlinewidth