Annotation of OpenXM_contrib2/asir2000/lib/glib, Revision 1.20
1.20 ! takayama 1: /* $OpenXM: OpenXM_contrib2/asir2000/lib/glib,v 1.19 2006/03/08 07:59:15 takayama Exp $ */
1.1 takayama 2:
1.9 takayama 3: /* BUG: this library has not yet been adapted to the new automatic launcher
4: of ox_plot. 2002, Aug, 4. Do not load glib more than twice.
5: */
1.1 takayama 6:
1.17 takayama 7: extern Cfep_loaded$
8:
1.12 takayama 9: #define DO_NOT_START_SERVER_EXPLICITLY
10:
1.1 takayama 11: /* #define CLIP 1 */
12: /* #define DEBUG 1 */
13: #define LIST 4
14:
1.5 takayama 15: def glib_floor(N) {
1.1 takayama 16: return(pari(floor,N));
17: }
18:
1.5 takayama 19: /*
1.1 takayama 20: def join(A,B) {
21: if (type(B) == 0) return(A);
22: return(append(A,B));
23: }
24: def eigenvalues(M) {
25: return(pari(eigen,M));
26: }
27: def roots(F) {
28: return(pari(roots,F));
29: }
1.5 takayama 30: */
1.1 takayama 31:
32: /* ---------------------------------------------- */
1.8 takayama 33: def glib_ox_get_errors(P) {
1.1 takayama 34: ox_push_cmd(P,276);
35: return(ox_pop_cmo(P));
36: }
37:
38: def reset_plot() {
39: extern Glib_process;
1.17 takayama 40: if (!Cfep_loaded) {
41: print(" Sending signal to ox_plot",0);
42: ox_reset(Glib_process);
43: print(" Done.");
44: }
1.1 takayama 45: }
1.5 takayama 46: Glib_ps = 0$
47: Glib_h = []$
1.1 takayama 48: Glib_canvas_x = 400$
49: Glib_canvas_y = 400$
50: Glib_xmin=0$ Glib_xmax=Glib_canvas_x$
51: Glib_ymin=0$ Glib_ymax=Glib_canvas_y$
1.11 takayama 52: Glib_math_coordinate=0$
1.12 takayama 53:
1.1 takayama 54:
55: Glib_canvas = -1$
56: Glib_xmag = 1$ Glib_ymag=1$ Glib_xoffset=0$ Glib_yoffset=0$
57: Glib_safe_mode = 2 $
58: Glib_counter = 100$
59:
1.16 takayama 60: extern Glib_ps_sx$
61: extern Glib_ps_sy$
62: Glib_ps_sx=2$ /* mag=1/2 for PS picture. cf. glib_ps_form, glib_tops */
63: Glib_ps_sy=2$ /* mag=1/2 for PS picture */
64:
1.1 takayama 65: def open_Canvas(P,S) {
1.12 takayama 66: extern Glib_process;
1.17 takayama 67: /* print("open_Canvas: ",0);print(S); */
68: if (!Cfep_loaded) {
69: if (P < 0) P=open_canvas(S); /* BUG, get process No. */
70: else open_canvas(P,S);
71: Glib_process = P;
1.1 takayama 72: R = ox_pop_cmo(P);
1.17 takayama 73: /*
74: if (glib_ox_get_errors(P) == []) {
75: R = ox_pop_cmo(P);
76: }else{
77: debug;
78: }
79: */
1.1 takayama 80: }else{
1.17 takayama 81: R=cfep.open_canvas(S);
1.1 takayama 82: }
83: return(R);
84: }
85:
1.8 takayama 86: /*&usage begin: glib_open()
87: It starts the ox_plot server and opens a canvas.
88: The canvas size is set to {Glib_canvas_x} X {Glib_canvas_y}
89: (the default value is 400).
90: This function is automatically called when the user calls glib
91: functions.
92: end: */
93:
1.1 takayama 94: def glib_open() {
95: extern Glib_canvas_x, Glib_canvas_y,
1.12 takayama 96: Glib_process, Glib_canvas,
97: Glib_server_started, Glib_process$
1.17 takayama 98: if (!Cfep_loaded) return glib_openx11();
99: else {
100: Glib_canvas = open_Canvas(-1,[Glib_canvas_x,Glib_canvas_y])$
101: Glib_server_started = 1$
102: return(Glib_canvas);
103: }
104: }
105: def glib_openx11() {
106: extern Glib_canvas_x, Glib_canvas_y,
107: Glib_process, Glib_canvas,
108: Glib_server_started, Glib_process$
1.12 takayama 109: #ifndef DO_NOT_START_SERVER_EXPLICITLY
1.17 takayama 110: if (type(Glib_server_started) == 0) {
1.12 takayama 111: Glib_process = ox_launch_nox(0,"ox_plot")$
112: register_handler(reset_plot);
113: Glib_server_started = 1$
114: }$
1.1 takayama 115: Glib_canvas = open_Canvas(Glib_process,[Glib_canvas_x,Glib_canvas_y])$
1.12 takayama 116: #else
117: Glib_canvas = open_Canvas(-1,[Glib_canvas_x,Glib_canvas_y])$
118: register_handler(reset_plot);
119: Glib_server_started = 1$
120: #endif
1.1 takayama 121: glib_check_strict();
122: return(Glib_canvas);
123: }
124:
125: def glib_check() {
126: extern Glib_process, Glib_canvas, Glib_safe_mode,
127: Glib_canvas_x, Glib_canvas_y, Glib_counter;
128: if (Glib_safe_mode == 0) {
129: return(0);
130: }
131: if (Glib_safe_mode == 2) {
132: if (Glib_counter > 0) {
133: Glib_counter--;
134: return(0);
135: }else{
136: Glib_counter=100;
137: }
138: }
139: glib_check_strict();
140: }
141: def glib_check_strict() {
142: extern Glib_process, Glib_canvas, Glib_safe_mode,
143: Glib_canvas_x, Glib_canvas_y, Glib_counter;
144: if (Glib_canvas < 0) {
145: glib_open();
146: }
1.17 takayama 147: if (Cfep_loaded) return ;
1.8 takayama 148: E = glib_ox_get_errors(Glib_process);
1.1 takayama 149: if (E != []) {
150: ox_pops(Glib_process,200);
151: print(E);
152: print("Warning: ",0);
153: print("Drawing canvas seems to be closed.");
154: print("Opening a new canvas.");
155: Glib_canvas = open_Canvas(Glib_process,[Glib_canvas_x,Glib_canvas_y])$
156: error("Drawing aborted");
157: }
158: }
159:
1.19 takayama 160: /*&usage begin: glib_clear()
161: Clear the screen.
162: end: */
1.1 takayama 163: def glib_clear() {
164: extern Glib_process, Glib_canvas;
165: if (Glib_canvas < 0) glib_open();
1.17 takayama 166: if (!Cfep_loaded) clear_canvas(Glib_process,Glib_canvas);
1.19 takayama 167: else cfep.glib_clear();
1.1 takayama 168: }
169:
1.5 takayama 170: /*&usage begin: glib_window(Xmin,Ymin,Xmax,Ymax)
171: It generates a window with the left top corner [{Xmin},{Ymin}] and
172: the right bottom corner [{Xmax},{Ymax}].
1.11 takayama 173: If the global variable {Glib_math_coordinate} is set to 1, mathematical
174: coordinate system will be employed, i.e., the left top
175: corner will have the coordinate [{Xmin},{Ymax}].
1.5 takayama 176: example: glib_window(-1,-1,10,10);
177: end: */
1.1 takayama 178: def glib_window(Xmin,Ymin,Xmax,Ymax) {
179: extern Glib_xmin, Glib_xmax, Glib_ymin, Glib_ymax,
180: Glib_canvas_x, Glib_canvas_y, Glib_process, Glib_canvas,
181: Glib_xoffset, Glib_yoffset, Glib_xmag, Glib_ymag;
182: if (Xmax <= Xmin) error("glib window: Invalid size");
183: if (Ymax <= Ymin) error("glib window: Invalid size");
1.2 takayama 184: glib_check_arg(Xmin,Ymin); glib_check_arg(Xmax,Ymax);
1.1 takayama 185: Glib_xmin = Xmin; Glib_xmax = Xmax;
186: Glib_ymin = Ymin; Glib_ymax = Ymax;
187: Glib_xoffset = -Xmin;
188: Glib_yoffset = -Ymin;
189: Glib_xmag = Glib_canvas_x/(Xmax-Xmin);
190: Glib_ymag = Glib_canvas_y/(Ymax-Ymin);
191: if (Glib_canvas < 0) glib_open();
192: }
193:
1.2 takayama 194: def glib_check_arg(X,Y) {
195: if (type(X) <= 1 && type(Y) <= 1) return 1;
196: else {
197: print("Error in glib: arguments ",0);
198: print([X,Y],0);
199: print(" are not numbers.");
200: error("Invalid argument for glib_window, glib_putpixel, glib_line.");
201: }
202: }
203:
1.6 takayama 204: /*&usage begin: glib_putpixel(X,Y|color)
1.5 takayama 205: It puts a pixel at [{X},{Y}] with {color}
206: example: glib_putpixel(1,2 | color=0xffff00);
207: end: */
1.1 takayama 208: def glib_putpixel(X,Y) {
209: extern Glib_process, Glib_canvas,
1.11 takayama 210: Glib_xoffset, Glib_yoffset, Glib_xmag, Glib_ymag, Glib_ps,
211: Glib_math_coordinate, Glib_canvas_y;
1.1 takayama 212: if (Glib_canvas < 0) glib_open();
213: glib_check();
1.2 takayama 214: glib_check_arg(X,Y);
1.3 noro 215: C = getopt(color);
1.11 takayama 216: if (Glib_math_coordinate) {
217: Pos = [glib_floor(Glib_xmag*(X+Glib_xoffset)),
218: Glib_canvas_y-glib_floor(Glib_ymag*(Y+Glib_yoffset))];
219: Pos2= [glib_floor(Glib_xmag*(X+Glib_xoffset)),
220: glib_floor(Glib_ymag*(Y+Glib_yoffset))];
221: }else{
222: Pos = [glib_floor(Glib_xmag*(X+Glib_xoffset)),
223: glib_floor(Glib_ymag*(Y+Glib_yoffset))];
224: Pos2= [glib_floor(Glib_xmag*(X+Glib_xoffset)),
225: Glib_canvas_y-glib_floor(Glib_ymag*(Y+Glib_yoffset))];
226: }
1.5 takayama 227: if ( type(C) != -1 ) {
1.17 takayama 228: if (!Cfep_loaded) draw_obj(Glib_process,Glib_canvas,Pos,C);
229: else cfep.draw_obj2(Glib_process,Glib_canvas,Pos,C);
1.11 takayama 230: if (Glib_ps) glib_history(["putpixel",Pos2,C]);
1.5 takayama 231: }else{
1.17 takayama 232: if (!Cfep_loaded) draw_obj(Glib_process,Glib_canvas,Pos);
233: else cfep.draw_obj(Glib_process,Glib_canvas,Pos);
1.11 takayama 234: if (Glib_ps) glib_history(["putpixel",Pos2,0]);
1.5 takayama 235: }
1.1 takayama 236: }
237:
1.20 ! takayama 238: /*&usage begin: glib_line(X0,Y0,X1,Y1|color,shape)
! 239: It draws the line [{X0},{Y0}]-- [{X1},{Y1}] with {color} and {shape}
1.5 takayama 240: example: glib_line(0,0,5,3/2 | color=0xff00ff);
1.20 ! takayama 241: glib_line(0,0,10,0 | shape=arrow);
1.5 takayama 242: end: */
1.1 takayama 243: def glib_line(X0,Y0,X1,Y1) {
244: extern Glib_xmag, Glib_ymag, Glib_xoffset, Glib_yoffset;
1.3 noro 245: C = getopt(color);
1.2 takayama 246: glib_check_arg(X0,Y0);
247: glib_check_arg(X1,Y1);
1.5 takayama 248: glib_clip_line(glib_floor(Glib_xmag*(X0+Glib_xoffset)),
249: glib_floor(Glib_ymag*(Y0+Glib_yoffset)),
250: glib_floor(Glib_xmag*(X1+Glib_xoffset)),
251: glib_floor(Glib_ymag*(Y1+Glib_yoffset)),C);
1.20 ! takayama 252: Shape = getopt(shape);
! 253: if (type(Shape) != 2) return;
! 254: Px = X0+(7/8)*(X1-X0);
! 255: Py = Y0+(7/8)*(Y1-Y0);
! 256: Qx = (Y0-Y1)/8;
! 257: Qy = (X1-X0)/8;
! 258: if (type(C)>0) glib_line(X1,Y1,Px+Qx,Py+Qy | color=C);
! 259: else glib_line(X1,Y1,Px+Qx,Py+Qy);
! 260: if (type(C)>0) glib_line(X1,Y1,Px-Qx,Py-Qy | color=C);
! 261: else glib_line(X1,Y1,Px-Qx,Py-Qy);
1.1 takayama 262: }
263:
1.3 noro 264: def glib_clip_line(X0,Y0,X1,Y1,Color) {
1.1 takayama 265: /* X0, Y0, X1, Y1 should be integers.
266: Coordinates are already translated. */
1.5 takayama 267: extern Glib_process, Glib_canvas, Glib_canvas_x, Glib_canvas_y,
1.11 takayama 268: Glib_ps, Glib_math_coordinate;
1.1 takayama 269: if (Glib_canvas < 0) glib_open();
270:
1.5 takayama 271: if (Glib_ps) {
1.1 takayama 272: #ifdef DEBUG
273: print(["clip_line",[X0,Y0,X1,Y1]]);
274: #endif
275: /* clip by x = 0 */
276: S = glib_clip0_x(X0,Y0,X1,Y1,0);
277: #ifdef DEBUG
278: print(["clip0_x",S]);
279: #endif
280: if (type(S) == 0) return;
281: X0 = S[0]; Y0 = S[1]; X1 = S[2]; Y1 = S[3];
282:
283: S = glib_clip1_x(X0,Y0,X1,Y1,Glib_canvas_x-1);
284: #ifdef DEBUG
285: print(["clip1_x",S]);
286: #endif
287: if (type(S) == 0) return;
288: X0 = S[0]; Y0 = S[1]; X1 = S[2]; Y1 = S[3];
289:
290: S = glib_clip0_y(X0,Y0,X1,Y1,0);
291: #ifdef DEBUG
292: print(["clip0_y",S]);
293: #endif
294: if (type(S) == 0) return;
295: X0 = S[0]; Y0 = S[1]; X1 = S[2]; Y1 = S[3];
296:
297: S = glib_clip1_y(X0,Y0,X1,Y1,Glib_canvas_y-1);
298: #ifdef DEBUG
299: print(["clip1_y",S]);
300: #endif
301: if (type(S) == 0) return;
302: X0 = S[0]; Y0 = S[1]; X1 = S[2]; Y1 = S[3];
303:
304: #ifdef DEBUG
305: print([X0,Y0,X1,Y1]);
306: #endif
1.5 takayama 307: }
308:
1.1 takayama 309: glib_check();
1.11 takayama 310: if (Glib_math_coordinate) {
311: Pos = [glib_floor(X0),Glib_canvas_y-glib_floor(Y0),
312: glib_floor(X1),Glib_canvas_y-glib_floor(Y1)];
313: Pos2= [glib_floor(X0),glib_floor(Y0),glib_floor(X1),glib_floor(Y1)];
314: }else{
315: Pos = [glib_floor(X0),glib_floor(Y0),glib_floor(X1),glib_floor(Y1)];
316: Pos2 = [glib_floor(X0),Glib_canvas_y-glib_floor(Y0),
317: glib_floor(X1),Glib_canvas_y-glib_floor(Y1)];
318: }
1.5 takayama 319: if ( type(Color) != -1 ) {
1.17 takayama 320: if (!Cfep_loaded) draw_obj(Glib_process,Glib_canvas,Pos,Color);
321: else cfep.draw_obj2(Glib_process,Glib_canvas,Pos,Color);
1.11 takayama 322: if (Glib_ps) glib_history(["line",Pos2,Color]);
1.5 takayama 323: }else{
1.17 takayama 324: if (!Cfep_loaded) draw_obj(Glib_process,Glib_canvas,Pos);
325: else cfep.draw_obj(Glib_process,Glib_canvas,Pos);
1.11 takayama 326: if (Glib_ps) glib_history(["line",Pos2,0]);
1.5 takayama 327: }
1.1 takayama 328: }
329:
330: def glib_clip0_x(X0,Y0,X1,Y1,Clip) {
331: if (X0 < Clip && X1 < Clip) return(0);
332: if (X0 < Clip && X1 > Clip) {
333: return([Clip, Y0+(Clip-X0)*(Y1-Y0)/(X1-X0),X1,Y1]);
334: }
335: if (X1 > Clip && X1 < Clip) {
336: return([X0,Y0,Clip, Y1+(Clip-X1)*(Y0-Y1)/(X0-X1)]);
337: }
338: return([X0,Y0,X1,Y1]);
339: }
340: def glib_clip0_y(X0,Y0,X1,Y1,Clip) {
341: if (Y0 < Clip && Y1 < Clip) return(0);
342: if (Y0 < Clip && Y1 > Clip) {
343: return([X0+(Clip-Y0)*(X1-X0)/(Y1-Y0),Clip,X1,Y1]);
344: }
345: if (Y1 > Clip && Y1 < Clip) {
346: return([X0,Y0,X1+(Clip-Y1)*(X0-X1)/(Y0-Y1),Clip]);
347: }
348: return([X0,Y0,X1,Y1]);
349: }
350: def glib_clip1_x(X0,Y0,X1,Y1,Clip) {
351: if (X0 > Clip && X1 > Clip) return(0);
352: if (X0 > Clip && X1 < Clip) {
353: return([Clip, Y0+(Clip-X0)*(Y1-Y0)/(X1-X0),X1,Y1]);
354: }
355: if (X1 < Clip && X1 > Clip) {
356: return([X0,Y0,Clip, Y1+(Clip-X1)*(Y0-Y1)/(X0-X1)]);
357: }
358: return([X0,Y0,X1,Y1]);
359: }
360: def glib_clip1_y(X0,Y0,X1,Y1,Clip) {
361: if (Y0 > Clip && Y1 > Clip) return(0);
362: if (Y0 > Clip && Y1 < Clip) {
363: return([X0+(Clip-Y0)*(X1-X0)/(Y1-Y0),Clip,X1,Y1]);
364: }
365: if (Y0 < Clip && Y1 > Clip) {
366: return([X0,Y0,X1+(Clip-Y1)*(X0-X1)/(Y0-Y1),Clip]);
367: }
368: return([X0,Y0,X1,Y1]);
1.4 takayama 369: }
370:
1.6 takayama 371: /*&usage begin: glib_print(X,Y,Text|color)
1.4 takayama 372: It put a string {Text} at [{X},{Y}] on the glib canvas.
373: example: glib_print(100,100,"Hello Worlds" | color=0xff0000);
374: end: */
375: def glib_print(X,Y,Text) {
376: extern Glib_process, Glib_canvas,
1.11 takayama 377: Glib_xoffset, Glib_yoffset, Glib_xmag, Glib_ymag, Glib_ps,
378: Glib_math_coordinate, Glib_canvas_y;
1.4 takayama 379: if (Glib_canvas < 0) glib_open();
380: glib_check();
381: glib_check_arg(X,Y);
382: if (type(Text) != 7) error("glib_print(X,Y,Text): Text must be a string.");
383: C = getopt(color);
1.11 takayama 384: if (Glib_math_coordinate) {
385: Pos = [glib_floor(Glib_xmag*(X+Glib_xoffset)),
386: Glib_canvas_y-glib_floor(Glib_ymag*(Y+Glib_yoffset))];
387: Pos2= [glib_floor(Glib_xmag*(X+Glib_xoffset)),
388: glib_floor(Glib_ymag*(Y+Glib_yoffset))];
389: }else{
390: Pos = [glib_floor(Glib_xmag*(X+Glib_xoffset)),
391: glib_floor(Glib_ymag*(Y+Glib_yoffset))];
392: Pos2= [glib_floor(Glib_xmag*(X+Glib_xoffset)),
393: Glib_canvas_y-glib_floor(Glib_ymag*(Y+Glib_yoffset))];
394: }
1.5 takayama 395: if ( type(C) != -1 ) {
1.17 takayama 396: if (!Cfep_loaded) draw_string(Glib_process,Glib_canvas,Pos,Text,C);
397: else cfep.draw_string2(Glib_process,Glib_canvas,Pos,Text,C);
1.11 takayama 398: if (Glib_ps) glib_history(["print",Pos2,Text,C]);
1.5 takayama 399: }else{
1.17 takayama 400: if (!Cfep_loaded) draw_string(Glib_process,Glib_canvas,Pos,Text);
401: else cfep.draw_string(Glib_process,Glib_canvas,Pos,Text);
1.11 takayama 402: if (Glib_ps) glib_history(["print",Pos2,Text,0]);
1.5 takayama 403: }
404: }
405:
406: def glib_history(L) {
1.11 takayama 407: extern Glib_h, Glib_canvas_x, Glib_canvas_y,
408: Glib_math_coodinate;
1.5 takayama 409: if (L[0] == "putpixel" || L[0] == "print") {
410: if (L[1][0] <= Glib_canvas_x && L[1][0] >= 0) {
411: if (L[1][1] <= Glib_canvas_x && L[1][1] >= 0)
412: Glib_h = cons(L,Glib_h);
413: }
414: }else {
415: Glib_h = cons(L,Glib_h);
416: }
417: return 0;
418: }
419:
1.16 takayama 420: #define xxx(x) idiv(x,Glib_ps_sx)
421: #define yyy(y) idiv(y,Glib_ps_sy)
422:
1.6 takayama 423: /*&usage begin: glib_tops()
1.5 takayama 424: If Glib_ps is set to 1,
425: it returns a postscript program to draw the picture on the canvas.
1.8 takayama 426: ref: print_output
1.5 takayama 427: end: */
428: def glib_tops() {
429: extern Glib_h;
430: return glib_ps(Glib_h);
431: }
432: def glib_ps(L) {
1.16 takayama 433: extern Glib_ps_sx;
434: extern Glib_ps_sy;
1.13 takayama 435: PS = string_to_tb("");
1.5 takayama 436: Prev_color = 0;
437: /* Prolog */
1.13 takayama 438: write_to_tb("%%!PS-Adobe-1.0\n",PS);
439: write_to_tb("%%BoundingBox: 0 0 " +
1.16 takayama 440: rtostr(xxx(Glib_canvas_x)) + " " + rtostr(yyy(Glib_canvas_y)) + "\n",PS);
1.13 takayama 441: write_to_tb("%%Creator: This is generated by ifplot\n",PS);
442: write_to_tb("%%Title: ifplot\n",PS);
443: write_to_tb("%%EndComments: \n",PS);
444: write_to_tb("0.1 setlinewidth \n",PS);
445: write_to_tb("2 setlinecap \n",PS);
446: write_to_tb("2 setlinejoin \n",PS);
447: write_to_tb("/ifplot_putpixel { \n",PS);
448: write_to_tb(" /yyy 2 1 roll def /xxx 2 1 roll def \n",PS);
449: write_to_tb(" gsave newpath xxx yyy .5 0 360 arc \n",PS);
450: write_to_tb(" fill grestore \n",PS);
451: write_to_tb("} def \n",PS);
1.5 takayama 452:
453: L = reverse(L);
454: N = length(L);
455: for (I=0; I<N; I++) {
456: C = L[I];
457: if (C[length(C)-1] != Prev_color) {
458: Prev_color = C[length(C)-1];
1.13 takayama 459: write_to_tb(rtostr(deval(ishift(Prev_color,16)/256)) + " " +
1.5 takayama 460: rtostr(deval(iand(ishift(Prev_color,8),0xff)/256)) + " " +
1.13 takayama 461: rtostr(deval(iand(Prev_color,0xff)/256)) + " setrgbcolor \n",PS);
1.5 takayama 462: }
463: if (C[0] == "putpixel") {
1.16 takayama 464: write_to_tb(rtostr(xxx(C[1][0])) + " " + rtostr(yyy(C[1][1])) + " ifplot_putpixel \n",PS);
1.5 takayama 465: }
466: if (C[0] == "line") {
1.13 takayama 467: write_to_tb(" newpath ",PS);
1.16 takayama 468: write_to_tb(rtostr(xxx(C[1][0])) + " " + rtostr(yyy(C[1][1])) + " moveto " +
469: rtostr(xxx(C[1][2])) + " " + rtostr(yyy(C[1][3])) + " lineto stroke \n",PS);
1.5 takayama 470: }
471: if (C[0] == "print") {
1.13 takayama 472: write_to_tb("/Times-Roman findfont 10 scalefont setfont \n",PS);
1.16 takayama 473: write_to_tb(rtostr(xxx(C[1][0])) + " " + rtostr(yyy(C[1][1])) + " moveto ",PS);
1.13 takayama 474: write_to_tb("(" + C[2] + ") show \n",PS);
1.5 takayama 475: }
476: }
477:
478: /* Epilog */
1.13 takayama 479: write_to_tb("0 0 0 setrgbcolor \n",PS);
480: write_to_tb("showpage \n",PS);
1.5 takayama 481:
1.13 takayama 482: return tb_to_string(PS);
1.14 takayama 483: }
484:
485: /*&usage begin: glib_ps_form(S)
486: It returns the PS code generated by executing {S}
487: (experimental).
488: example: glib_ps_form(quote( glib_line(0,0,100,100) ));
1.15 takayama 489: example: glib_ps_form(quote([glib_line(0,0,100,100),glib_line(100,0,0,100)]));
1.14 takayama 490: ref: glib_tops
491: end: */
1.15 takayama 492: /* Todo. Change the canvas size. */
1.14 takayama 493: def glib_ps_form(F) {
494: extern Glib_h;
495: extern Glib_ps;
496: H = Glib_h; /* push Glib_h */
497: P = Glib_ps; /* push Glib_ps */
498:
499: Glib_ps=1; Glib_h = [];
1.16 takayama 500: if (type(F) != 17) {
501: return "Error: argument should be quote(...).";
502: }
1.14 takayama 503: eval_quote(F);
504: /* bug. eval_str causes seg fault for ccurve.rr main(8) */
505: R = glib_tops();
506: Glib_h = H; /* pop Glib_h */
507: Glib_ps = P; /* pop Glib_ps */
508: return R;
1.1 takayama 509: }
1.10 takayama 510:
511: /*&usage begin: glib_plot(F)
512: It plots an object {F} on the glib canvas.
513: example: glib_plot([[0,1],[0.1,0.9],[0.2,0.7],[0.3,0.5],[0.4,0.8]]);
514: example: glib_plot(tan(x));
515: end: */
516: /* bug, xmin, xmax, color should be optional variables. */
517: def glib_plot(F) {
518: Opt = getopt();
519: taka_glib_plot(F,Opt);
520: }
521:
1.18 takayama 522: /*&usage begin: glib_flush();
523: Flush the output.
524: (Cfep only. It also set initGL to 1.).
525: end: */
1.17 takayama 526: def glib_flush() {
527: extern Glib_canvas;
1.18 takayama 528: if (Glib_canvas < 0) glib_open();
1.17 takayama 529: if (Cfep_loaded) cfep.draw_flush(Glib_canvas);
530: }
1.18 takayama 531: /*&usage begin: glib_set_pixel_size(P)
532: Set the size of putpixel to P. 1.0 is the default.
533: (cfep only).
534: end: */
535: def glib_set_pixel_size(X) {
536: extern Glib_canvas;
537: if (Glib_canvas < 0) glib_open();
538: if (!Cfep_loaded) /*Not implemented.*/ ;
539: else cfep.glib_set_pixel_size(X);
540: }
1.19 takayama 541:
1.18 takayama 542: /*&usage begin: glib_remove_last()
543: Remove the last object. glib_flush() should also be called to remove
544: the last object.
545: (cfep only).
546: end: */
547: def glib_remove_last() {
548: extern Glib_canvas;
549: if (Glib_canvas < 0) glib_open();
550: if (!Cfep_loaded) /*Not implemented.*/ ;
551: else cfep.glib_remove_last();
552: }
553:
1.1 takayama 554: end$
555:
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