Annotation of OpenXM_contrib/gnuplot/set.c, Revision 1.1.1.1
1.1 maekawa 1: #ifndef lint
2: static char *RCSid = "$Id: set.c,v 1.68 1998/06/22 12:24:54 ddenholm Exp $";
3: #endif
4:
5: /* GNUPLOT - set.c */
6:
7: /*[
8: * Copyright 1986 - 1993, 1998 Thomas Williams, Colin Kelley
9: *
10: * Permission to use, copy, and distribute this software and its
11: * documentation for any purpose with or without fee is hereby granted,
12: * provided that the above copyright notice appear in all copies and
13: * that both that copyright notice and this permission notice appear
14: * in supporting documentation.
15: *
16: * Permission to modify the software is granted, but not the right to
17: * distribute the complete modified source code. Modifications are to
18: * be distributed as patches to the released version. Permission to
19: * distribute binaries produced by compiling modified sources is granted,
20: * provided you
21: * 1. distribute the corresponding source modifications from the
22: * released version in the form of a patch file along with the binaries,
23: * 2. add special version identification to distinguish your version
24: * in addition to the base release version number,
25: * 3. provide your name and address as the primary contact for the
26: * support of your modified version, and
27: * 4. retain our contact information in regard to use of the base
28: * software.
29: * Permission to distribute the released version of the source code along
30: * with corresponding source modifications in the form of a patch file is
31: * granted with same provisions 2 through 4 for binary distributions.
32: *
33: * This software is provided "as is" without express or implied warranty
34: * to the extent permitted by applicable law.
35: ]*/
36:
37:
38: /*
39: * 19 September 1992 Lawrence Crowl (crowl@cs.orst.edu)
40: * Added user-specified bases for log scaling.
41: */
42:
43: #include "plot.h"
44: #include "stdfn.h"
45: #include "setshow.h"
46: #include "national.h"
47:
48: #define DEF_FORMAT "%g" /* default format for tic mark labels */
49: #define SIGNIF (0.01) /* less than one hundredth of a tic mark */
50:
51: /*
52: * global variables to hold status of 'set' options
53: *
54: * IMPORTANT NOTE:
55: * ===============
56: * If you change the default values of one of the variables below, or if
57: * you add another global variable, make sure that the change you make is
58: * done in reset_command() as well (if that makes sense).
59: */
60:
61: TBOOLEAN autoscale_r = DTRUE;
62: TBOOLEAN autoscale_t = DTRUE;
63: TBOOLEAN autoscale_u = DTRUE;
64: TBOOLEAN autoscale_v = DTRUE;
65: TBOOLEAN autoscale_x = DTRUE;
66: TBOOLEAN autoscale_y = DTRUE;
67: TBOOLEAN autoscale_z = DTRUE;
68: TBOOLEAN autoscale_x2 = DTRUE;
69: TBOOLEAN autoscale_y2 = DTRUE;
70: TBOOLEAN autoscale_lt = DTRUE;
71: TBOOLEAN autoscale_lu = DTRUE;
72: TBOOLEAN autoscale_lv = DTRUE;
73: TBOOLEAN autoscale_lx = DTRUE;
74: TBOOLEAN autoscale_ly = DTRUE;
75: TBOOLEAN autoscale_lz = DTRUE;
76: TBOOLEAN multiplot = FALSE;
77:
78: double boxwidth = -1.0; /* box width (automatic) */
79: TBOOLEAN clip_points = FALSE;
80: TBOOLEAN clip_lines1 = TRUE;
81: TBOOLEAN clip_lines2 = FALSE;
82: struct lp_style_type border_lp = { 0, -2, 0, 1.0, 1.0 };
83: int draw_border = 31;
84: TBOOLEAN draw_surface = TRUE;
85: char dummy_var[MAX_NUM_VAR][MAX_ID_LEN+1] = { "x", "y" };
86: char default_font[MAX_ID_LEN+1] = ""; /* Entry font added by DJL */
87: char xformat[MAX_ID_LEN+1] = DEF_FORMAT;
88: char yformat[MAX_ID_LEN+1] = DEF_FORMAT;
89: char zformat[MAX_ID_LEN+1] = DEF_FORMAT;
90: char x2format[MAX_ID_LEN+1] = DEF_FORMAT;
91: char y2format[MAX_ID_LEN+1] = DEF_FORMAT;
92:
93: /* do formats look like times - use FIRST_X_AXIS etc as index
94: * - never saved or shown ...
95: */
96: #if AXIS_ARRAY_SIZE != 10
97: # error error in initialiser for format_is_numeric
98: #endif
99:
100: int format_is_numeric[AXIS_ARRAY_SIZE] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
101:
102: enum PLOT_STYLE data_style = POINTSTYLE;
103: enum PLOT_STYLE func_style = LINES;
104: double bar_size = 1.0;
105: struct lp_style_type work_grid = { 0, GRID_OFF, 0, 1.0, 1.0 };
106: struct lp_style_type grid_lp = { 0, -1, 0, 1.0, 1.0 };
107: struct lp_style_type mgrid_lp = { 0, -1, 0, 1.0, 1.0 };
108: double polar_grid_angle = 0; /* nonzero means a polar grid */
109: int key = -1; /* default position */
110: struct position key_user_pos; /* user specified position for key */
111: TBOOLEAN key_reverse = FALSE; /* reverse text & sample ? */
112: struct lp_style_type key_box = { 0, -3, 0, 1.0, 1.0 }; /* -3 = no linetype */
113: double key_swidth = 4.0;
114: double key_vert_factor = 1.0;
115: double key_width_fix = 0.0;
116: TBOOLEAN is_log_x = FALSE;
117: TBOOLEAN is_log_y = FALSE;
118: TBOOLEAN is_log_z = FALSE;
119: TBOOLEAN is_log_x2 = FALSE;
120: TBOOLEAN is_log_y2 = FALSE;
121: double base_log_x = 0.0;
122: double base_log_y = 0.0;
123: double base_log_z = 0.0;
124: double base_log_x2 = 0.0;
125: double base_log_y2 = 0.0;
126: double log_base_log_x = 0.0;
127: double log_base_log_y = 0.0;
128: double log_base_log_z = 0.0;
129: double log_base_log_x2 = 0.0;
130: double log_base_log_y2 = 0.0;
131: FILE *gpoutfile;
132: char *outstr = NULL; /* means "STDOUT" */
133: TBOOLEAN parametric = FALSE;
134: double pointsize = 1.0;
135: int encoding;
136: char *encoding_names[] = { "default", "iso_8859_1", "cp437", "cp850", NULL };
137: TBOOLEAN polar = FALSE;
138: TBOOLEAN hidden3d = FALSE;
139: TBOOLEAN label_contours = TRUE; /* different linestyles are used for contours when set */
140: char contour_format[32] = "%8.3g"; /* format for contour key entries */
141: int angles_format = ANGLES_RADIANS;
142: double ang2rad = 1.0; /* 1 or pi/180, tracking angles_format */
143: int mapping3d = MAP3D_CARTESIAN;
144: int samples = SAMPLES; /* samples is always equal to samples_1 */
145: int samples_1 = SAMPLES;
146: int samples_2 = SAMPLES;
147: int iso_samples_1 = ISO_SAMPLES;
148: int iso_samples_2 = ISO_SAMPLES;
149: float xsize = 1.0; /* scale factor for size */
150: float ysize = 1.0; /* scale factor for size */
151: float zsize = 1.0; /* scale factor for size */
152: float xoffset = 0.0; /* x origin */
153: float yoffset = 0.0; /* y origin */
154: float aspect_ratio = 0.0; /* don't attempt to force it */
155: float surface_rot_z = 30.0; /* Default 3d transform. */
156: float surface_rot_x = 60.0;
157: float surface_scale = 1.0;
158: float surface_zscale = 1.0;
159: struct termentry *term = NULL; /* unknown */
160: char term_options[MAX_LINE_LEN+1] = "";
161: label_struct title = { "", 0.0, 0.0, "" };
162: label_struct timelabel = { "", 0.0, 0.0, "" };
163: label_struct xlabel = { "", 0.0, 0.0, "" };
164: label_struct ylabel = { "", 0.0, 0.0, "" };
165: label_struct zlabel = { "", 0.0, 0.0, "" };
166: label_struct x2label = { "", 0.0, 0.0, "" };
167: label_struct y2label = { "", 0.0, 0.0, "" };
168:
169: int timelabel_rotate = FALSE;
170: int timelabel_bottom = TRUE;
171: char key_title[MAX_LINE_LEN+1] = "";
172: double rmin = -0.0;
173: double rmax = 10.0;
174: double tmin = -5.0;
175: double tmax = 5.0;
176: double umin = -5.0;
177: double umax = 5.0;
178: double vmin = -5.0;
179: double vmax = 5.0;
180: double xmin = -10.0;
181: double xmax = 10.0;
182: double ymin = -10.0;
183: double ymax = 10.0;
184: double zmin = -10.0;
185: double zmax = 10.0;
186: double x2min = -10.0;
187: double x2max = 10.0;
188: double y2min = -10.0;
189: double y2max = 10.0;
190: double loff = 0.0;
191: double roff = 0.0;
192: double toff = 0.0;
193: double boff = 0.0;
194: int draw_contour = CONTOUR_NONE;
195: int contour_pts = 5;
196: int contour_kind = CONTOUR_KIND_LINEAR;
197: int contour_order = 4;
198: int contour_levels = 5;
199: double zero = ZERO; /* zero threshold, not 0! */
200: int levels_kind = LEVELS_AUTO;
201: double levels_list[MAX_DISCRETE_LEVELS]; /* storage for z levels to draw contours at */
202:
203: int dgrid3d_row_fineness = 10;
204: int dgrid3d_col_fineness = 10;
205: int dgrid3d_norm_value = 1;
206: TBOOLEAN dgrid3d = FALSE;
207:
208: struct lp_style_type xzeroaxis = { 0, -3, 0, 1.0, 1.0 };
209: struct lp_style_type yzeroaxis = { 0, -3, 0, 1.0, 1.0 };
210: struct lp_style_type x2zeroaxis = { 0, -3, 0, 1.0, 1.0 };
211: struct lp_style_type y2zeroaxis = { 0, -3, 0, 1.0, 1.0 };
212:
213: /* perhaps make these into an array one day */
214:
215: int xtics = TICS_ON_BORDER | TICS_MIRROR;
216: int ytics = TICS_ON_BORDER | TICS_MIRROR;
217: int ztics = TICS_ON_BORDER; /* no mirror by default for ztics */
218: int x2tics = NO_TICS;
219: int y2tics = NO_TICS;
220:
221: TBOOLEAN rotate_xtics = FALSE;
222: TBOOLEAN rotate_ytics = FALSE;
223: TBOOLEAN rotate_ztics = FALSE;
224: TBOOLEAN rotate_x2tics = FALSE;
225: TBOOLEAN rotate_y2tics = FALSE;
226:
227: int range_flags[AXIS_ARRAY_SIZE]; /* = {0,0,...} */
228:
229: int mxtics = MINI_DEFAULT;
230: int mytics = MINI_DEFAULT;
231: int mztics = MINI_DEFAULT;
232: int mx2tics = MINI_DEFAULT;
233: int my2tics = MINI_DEFAULT;
234:
235: double mxtfreq = 10; /* # intervals between major */
236: double mytfreq = 10; /* tic marks */
237: double mztfreq = 10;
238: double mx2tfreq = 10;
239: double my2tfreq = 10;
240:
241: double ticscale = 1.0; /* scale factor for tic mark */
242: double miniticscale = 0.5; /* and for minitics */
243:
244: float ticslevel = 0.5;
245:
246: struct ticdef xticdef = { TIC_COMPUTED };
247: struct ticdef yticdef = { TIC_COMPUTED };
248: struct ticdef zticdef = { TIC_COMPUTED };
249: struct ticdef x2ticdef = { TIC_COMPUTED };
250: struct ticdef y2ticdef = { TIC_COMPUTED };
251:
252: TBOOLEAN tic_in = TRUE;
253:
254: struct text_label *first_label = NULL;
255: struct arrow_def *first_arrow = NULL;
256: struct linestyle_def *first_linestyle = NULL;
257:
258: int lmargin = -1; /* space between left edge and xleft in chars (-1: computed) */
259: int bmargin = -1; /* space between bottom and ybot in chars (-1: computed) */
260: int rmargin = -1; /* space between right egde and xright in chars (-1: computed) */
261: int tmargin = -1; /* space between top egde and ytop in chars (-1: computed) */
262:
263: /* string representing missing values in ascii datafiles */
264: char *missing_val = NULL;
265:
266: /* date&time language conversions */
267: /* extern struct dtconv *dtc; *//* HBB 980317: unused and not defined anywhere !? */
268:
269: /*** other things we need *****/
270:
271: /* input data, parsing variables */
272:
273: extern TBOOLEAN is_3d_plot;
274:
275: /* From plot2d.c */
276: extern struct curve_points *first_plot;
277: /* From plot3d.c */
278: extern struct surface_points *first_3dplot;
279:
280: int key_hpos = TRIGHT; /* place for curve-labels, corner or outside */
281: int key_vpos = TTOP; /* place for curve-labels, corner or below */
282: int key_just = JRIGHT; /* alignment of key labels, left or right */
283:
284: #ifndef TIMEFMT
285: #define TIMEFMT "%d/%m/%y\n%H:%M"
286: #endif
287: /* format for date/time for reading time in datafile */
288: char timefmt[25] = TIMEFMT;
289:
290: /* array of datatypes (x in 0,y in 1,z in 2,..(rtuv)) */
291: /* not sure how rtuv come into it ?
292: * oh well, make first six compatible with FIRST_X_AXIS, etc
293: */
294: int datatype[DATATYPE_ARRAY_SIZE];
295:
296: char cur_locale[MAX_ID_LEN+1] = "C";
297:
298: /* not set or shown directly, but controlled by 'set locale'
299: * defined in national.h
300: */
301:
302: char full_month_names[12][32] =
303: { FMON01, FMON02, FMON03, FMON04, FMON05, FMON06, FMON07, FMON08, FMON09, FMON10, FMON11, FMON12 };
304: char abbrev_month_names[12][8] =
305: { AMON01, AMON02, AMON03, AMON04, AMON05, AMON06, AMON07, AMON08, AMON09, AMON10, AMON11, AMON12 };
306:
307: char full_day_names[7][32] =
308: { FDAY0, FDAY1, FDAY2, FDAY3, FDAY4, FDAY5, FDAY6 };
309: char abbrev_day_names[7][8] =
310: { ADAY0, ADAY1, ADAY2, ADAY3, ADAY4, ADAY5, ADAY6 };
311:
312:
313:
314: /******** Local functions ********/
315: static void get_position __PROTO((struct position * pos));
316: static void get_position_type __PROTO((enum position_type * type, int *axes));
317: static void set_xyzlabel __PROTO((label_struct * label));
318: static void set_label __PROTO((void));
319: static void set_nolabel __PROTO((void));
320: static void set_arrow __PROTO((void));
321: static void set_noarrow __PROTO((void));
322: static void load_tics __PROTO((int axis, struct ticdef * tdef));
323: static void load_tic_user __PROTO((int axis, struct ticdef * tdef));
324: static void free_marklist __PROTO((struct ticmark * list));
325: static void load_tic_series __PROTO((int axis, struct ticdef * tdef));
326: static void load_offsets __PROTO((double *a, double *b, double *c, double *d));
327: static void delete_label __PROTO((struct text_label * prev, struct text_label * this));
328: static int assign_label_tag __PROTO((void));
329: static void delete_arrow __PROTO((struct arrow_def * prev, struct arrow_def * this));
330: static int assign_arrow_tag __PROTO((void));
331: static void set_linestyle __PROTO((void));
332: static void set_nolinestyle __PROTO((void));
333: static int assign_linestyle_tag __PROTO((void));
334: static void delete_linestyle __PROTO((struct linestyle_def * prev, struct linestyle_def * this));
335: static TBOOLEAN set_one __PROTO((void));
336: static TBOOLEAN set_two __PROTO((void));
337: static TBOOLEAN set_three __PROTO((void));
338: static int looks_like_numeric __PROTO((char *));
339: static void set_lp_properties __PROTO((struct lp_style_type * arg, int allow_points, int lt, int pt, double lw, double ps));
340: static void reset_lp_properties __PROTO((struct lp_style_type *arg));
341: static void set_locale __PROTO((char *));
342:
343: static int set_tic_prop __PROTO((int *TICS, int *MTICS, double *FREQ,
344: struct ticdef * tdef, int AXIS, TBOOLEAN * ROTATE, char *tic_side));
345:
346:
347: /* following code segment appears over and over again */
348: #define GET_NUM_OR_TIME(store,axis) \
349: do{if ( datatype[axis] == TIME && isstring(c_token) ) { \
350: char ss[80]; struct tm tm; \
351: quote_str(ss,c_token, 80); ++c_token; \
352: if (gstrptime(ss,timefmt,&tm)) store = (double) gtimegm(&tm); else store = 0;\
353: } else {\
354: struct value value; \
355: store = real(const_express(&value));\
356: }}while(0)
357:
358: /******** The 'reset' command ********/
359: void reset_command()
360: {
361: register struct curve_points *f_p = first_plot;
362: register struct surface_points *f_3dp = first_3dplot;
363:
364: c_token++;
365: first_plot = NULL;
366: first_3dplot = NULL;
367: cp_free(f_p);
368: sp_free(f_3dp);
369: /* delete arrows */
370: while (first_arrow != NULL)
371: delete_arrow((struct arrow_def *) NULL, first_arrow);
372: /* delete labels */
373: while (first_label != NULL)
374: delete_label((struct text_label *) NULL, first_label);
375: /* delete linestyles */
376: while (first_linestyle != NULL)
377: delete_linestyle((struct linestyle_def *) NULL, first_linestyle);
378: strcpy(dummy_var[0], "x");
379: strcpy(dummy_var[1], "y");
380: strcpy(title.text, "");
381: strcpy(xlabel.text, "");
382: strcpy(ylabel.text, "");
383: strcpy(zlabel.text, "");
384: strcpy(x2label.text, "");
385: strcpy(y2label.text, "");
386: *title.font = 0;
387: *xlabel.font = 0;
388: *ylabel.font = 0;
389: *zlabel.font = 0;
390: *x2label.font = 0;
391: *y2label.font = 0;
392: strcpy(key_title, "");
393: strcpy(timefmt, TIMEFMT);
394: strcpy(xformat, DEF_FORMAT);
395: strcpy(yformat, DEF_FORMAT);
396: strcpy(zformat, DEF_FORMAT);
397: strcpy(x2format, DEF_FORMAT);
398: strcpy(y2format, DEF_FORMAT);
399: format_is_numeric[FIRST_X_AXIS] = format_is_numeric[SECOND_X_AXIS] = 1;
400: format_is_numeric[FIRST_Y_AXIS] = format_is_numeric[SECOND_Y_AXIS] = 1;
401: format_is_numeric[FIRST_Z_AXIS] = format_is_numeric[SECOND_Z_AXIS] = 1;
402: autoscale_r = DTRUE;
403: autoscale_t = DTRUE;
404: autoscale_u = DTRUE;
405: autoscale_v = DTRUE;
406: autoscale_x = DTRUE;
407: autoscale_y = DTRUE;
408: autoscale_z = DTRUE;
409: autoscale_x2 = DTRUE;
410: autoscale_y2 = DTRUE;
411: autoscale_lt = DTRUE;
412: autoscale_lu = DTRUE;
413: autoscale_lv = DTRUE;
414: autoscale_lx = DTRUE;
415: autoscale_ly = DTRUE;
416: autoscale_lz = DTRUE;
417: boxwidth = -1.0;
418: clip_points = FALSE;
419: clip_lines1 = TRUE;
420: clip_lines2 = FALSE;
421: set_lp_properties(&border_lp, 0, -2, 0, 1.0, 1.0);
422: draw_border = 31;
423: draw_surface = TRUE;
424: data_style = POINTSTYLE;
425: func_style = LINES;
426: bar_size = 1.0;
427: set_lp_properties(&work_grid, 0, GRID_OFF, 0, 0.5, 1.0);
428: set_lp_properties(&grid_lp, 0, -1, 0, 0.5, 1.0);
429: set_lp_properties(&mgrid_lp, 0, -1, 0, 0.5, 1.0);
430: polar_grid_angle = 0;
431: key = -1;
432: is_log_x = FALSE;
433: is_log_y = FALSE;
434: is_log_z = FALSE;
435: is_log_x2 = FALSE;
436: is_log_y2 = FALSE;
437: base_log_x = 0.0;
438: base_log_y = 0.0;
439: base_log_z = 0.0;
440: base_log_x2 = 0.0;
441: base_log_y2 = 0.0;
442: log_base_log_x = 0.0;
443: log_base_log_y = 0.0;
444: log_base_log_z = 0.0;
445: log_base_log_x2 = 0.0;
446: log_base_log_y2 = 0.0;
447: parametric = FALSE;
448: polar = FALSE;
449: hidden3d = FALSE;
450: label_contours = TRUE;
451: strcpy(contour_format, "%8.3g");
452: angles_format = ANGLES_RADIANS;
453: ang2rad = 1.0;
454: mapping3d = MAP3D_CARTESIAN;
455: samples = SAMPLES;
456: samples_1 = SAMPLES;
457: samples_2 = SAMPLES;
458: iso_samples_1 = ISO_SAMPLES;
459: iso_samples_2 = ISO_SAMPLES;
460: xsize = 1.0;
461: ysize = 1.0;
462: zsize = 1.0;
463: xoffset = 0.0;
464: yoffset = 0.0;
465: aspect_ratio = 0.0; /* dont force it */
466: surface_rot_z = 30.0;
467: surface_rot_x = 60.0;
468: surface_scale = 1.0;
469: surface_zscale = 1.0;
470: *timelabel.text = 0;
471: timelabel.xoffset = 0;
472: timelabel.yoffset = 0;
473: *timelabel.font = 0;
474: timelabel_rotate = FALSE;
475: timelabel_bottom = TRUE;
476: title.xoffset = 0;
477: title.yoffset = 0;
478: xlabel.xoffset = 0;
479: xlabel.yoffset = 0;
480: ylabel.xoffset = 0;
481: ylabel.yoffset = 0;
482: zlabel.xoffset = 0;
483: zlabel.yoffset = 0;
484: x2label.xoffset = 0;
485: x2label.yoffset = 0;
486: y2label.xoffset = 0;
487: y2label.yoffset = 0;
488: rmin = -0.0;
489: rmax = 10.0;
490: tmin = -5.0;
491: tmax = 5.0;
492: umin = -5.0;
493: umax = 5.0;
494: vmin = -5.0;
495: vmax = 5.0;
496: xmin = -10.0;
497: xmax = 10.0;
498: ymin = -10.0;
499: ymax = 10.0;
500: zmin = -10.0;
501: zmax = 10.0;
502: x2min = -10.0;
503: x2max = 10.0;
504: y2min = -10.0;
505: y2max = 10.0;
506: memset(range_flags, 0, sizeof(range_flags)); /* all = 0 */
507:
508: loff = 0.0;
509: roff = 0.0;
510: toff = 0.0;
511: boff = 0.0;
512: draw_contour = CONTOUR_NONE;
513: contour_pts = 5;
514: contour_kind = CONTOUR_KIND_LINEAR;
515: contour_order = 4;
516: contour_levels = 5;
517: zero = ZERO;
518: levels_kind = LEVELS_AUTO;
519: dgrid3d_row_fineness = 10;
520: dgrid3d_col_fineness = 10;
521: dgrid3d_norm_value = 1;
522: dgrid3d = FALSE;
523: set_lp_properties(&xzeroaxis, 0, -3, 0, 1.0, 1.0);
524: set_lp_properties(&yzeroaxis, 0, -3, 0, 1.0, 1.0);
525: set_lp_properties(&x2zeroaxis, 0, -3, 0, 1.0, 1.0);
526: set_lp_properties(&y2zeroaxis, 0, -3, 0, 1.0, 1.0);
527: xtics =
528: ytics = TICS_ON_BORDER | TICS_MIRROR;
529: ztics = TICS_ON_BORDER; /* no mirror by default */
530: x2tics = NO_TICS;
531: y2tics = NO_TICS;
532: mxtics =
533: mytics =
534: mztics =
535: mx2tics =
536: my2tics = MINI_DEFAULT;
537: mxtfreq = 10.0;
538: mytfreq = 10.0;
539: mztfreq = 10.0;
540: mx2tfreq = 10.0;
541: my2tfreq = 10.0;
542: ticscale = 1.0;
543: miniticscale = 0.5;
544: ticslevel = 0.5;
545: xticdef.type = TIC_COMPUTED;
546: yticdef.type = TIC_COMPUTED;
547: zticdef.type = TIC_COMPUTED;
548: x2ticdef.type = TIC_COMPUTED;
549: y2ticdef.type = TIC_COMPUTED;
550: tic_in = TRUE;
551: lmargin =
552: bmargin =
553: rmargin =
554: tmargin = -1; /* autocomputed */
555: key_hpos = TRIGHT;
556: key_vpos = TTOP;
557: key_just = JRIGHT;
558: key_reverse = FALSE;
559: set_lp_properties(&key_box, 0, -3, 0, 1.0, 1.0);
560: key_swidth = 4;
561: key_vert_factor = 1;
562: key_width_fix = 0;
563: datatype[FIRST_X_AXIS] = FALSE;
564: datatype[FIRST_Y_AXIS] = FALSE;
565: datatype[FIRST_Z_AXIS] = FALSE;
566: datatype[SECOND_X_AXIS] = FALSE;
567: datatype[SECOND_Y_AXIS] = FALSE;
568: datatype[SECOND_Z_AXIS] = FALSE;
569: datatype[R_AXIS] = FALSE;
570: datatype[T_AXIS] = FALSE;
571: datatype[U_AXIS] = FALSE;
572: datatype[V_AXIS] = FALSE;
573:
574: pointsize = 1.0;
575: encoding = ENCODING_DEFAULT;
576:
577: set_locale("C"); /* default */
578: }
579:
580: /******** The 'set' command ********/
581: void set_command()
582: {
583: static char GPFAR setmess[] = "\
584: valid set options: [] = choose one, {} means optional\n\n\
585: \t'angles', '{no}arrow', '{no}autoscale', 'bars', '{no}border',\n\
586: \t'boxwidth', '{no}clabel', '{no}clip', 'cntrparam', '{no}contour',\n\
587: \t'data style', '{no}dgrid3d', 'dummy', 'encoding', 'format',\n\
588: \t'function style', '{no}grid', '{no}hidden3d', 'isosamples',\n\
589: \t'{no}key', '{no}label', '{no}linestyle', 'locale', '{no}logscale',\n\
590: \t'[blrt]margin', 'mapping', 'missing', '{no}multiplot', 'offsets',\n\
591: \t'origin', 'output', '{no}parametric', 'pointsize', '{no}polar',\n\
592: \t'[rtuv]range', 'samples', 'size', '{no}surface', 'terminal',\n\
593: \t'tics', 'ticscale', 'ticslevel', '{no}timestamp', 'timefmt',\n\
594: \t'title', 'view', '[xyz]{2}data', '[xyz]{2}label', '[xyz]{2}range',\n\
595: \t'{no}{m}[xyz]{2}tics', '[xyz]{2}[md]tics', '{no}{[xyz]{2}}zeroaxis',\n\
596: \t'zero'";
597:
598: c_token++;
599:
600: if (!set_one() && !set_two() && !set_three())
601: int_error(setmess, c_token);
602: }
603:
604: /* return TRUE if a command match, FALSE if not */
605: static TBOOLEAN
606: set_one()
607: {
608: /* save on replication with a macro */
609: #define PROCESS_AUTO_LETTER(AUTO, STRING,MIN,MAX) \
610: else if (equals(c_token, STRING)) { AUTO = DTRUE; ++c_token; } \
611: else if (almost_equals(c_token, MIN)) { AUTO |= 1; ++c_token; } \
612: else if (almost_equals(c_token, MAX)) { AUTO |= 2; ++c_token; }
613:
614: if (almost_equals(c_token, "ar$row")) {
615: c_token++;
616: set_arrow();
617: } else if (almost_equals(c_token, "noar$row")) {
618: c_token++;
619: set_noarrow();
620: } else if (almost_equals(c_token, "au$toscale")) {
621: c_token++;
622: if (END_OF_COMMAND) {
623: autoscale_r = autoscale_t = autoscale_x = autoscale_y = autoscale_z = autoscale_x2 = autoscale_y2 = DTRUE;
624: } else if (equals(c_token, "xy") || equals(c_token, "yx")) {
625: autoscale_x = autoscale_y = DTRUE;
626: c_token++;
627: }
628: PROCESS_AUTO_LETTER(autoscale_r, "r", "rmi$n", "rma$x")
629: PROCESS_AUTO_LETTER(autoscale_t, "t", "tmi$n", "tma$x")
630: PROCESS_AUTO_LETTER(autoscale_u, "u", "umi$n", "uma$x")
631: PROCESS_AUTO_LETTER(autoscale_v, "v", "vmi$n", "vma$x")
632: PROCESS_AUTO_LETTER(autoscale_x, "x", "xmi$n", "xma$x")
633: PROCESS_AUTO_LETTER(autoscale_y, "y", "ymi$n", "yma$x")
634: PROCESS_AUTO_LETTER(autoscale_z, "z", "zmi$n", "zma$x")
635: PROCESS_AUTO_LETTER(autoscale_x2, "x2", "x2mi$n", "x2ma$x")
636: PROCESS_AUTO_LETTER(autoscale_y2, "y2", "y2mi$n", "y2ma$x")
637: else
638: int_error("Invalid range", c_token);
639: } else if (almost_equals(c_token,"noau$toscale")) {
640: c_token++;
641: if (END_OF_COMMAND) {
642: autoscale_r = autoscale_t = autoscale_x = autoscale_y = autoscale_z = FALSE;
643: } else if (equals(c_token, "xy") || equals(c_token, "tyx")) {
644: autoscale_x = autoscale_y = FALSE;
645: c_token++;
646: } else if (equals(c_token, "r")) {
647: autoscale_r = FALSE;
648: c_token++;
649: } else if (equals(c_token, "t")) {
650: autoscale_t = FALSE;
651: c_token++;
652: } else if (equals(c_token, "u")) {
653: autoscale_u = FALSE;
654: c_token++;
655: } else if (equals(c_token, "v")) {
656: autoscale_v = FALSE;
657: c_token++;
658: } else if (equals(c_token, "x")) {
659: autoscale_x = FALSE;
660: c_token++;
661: } else if (equals(c_token, "y")) {
662: autoscale_y = FALSE;
663: c_token++;
664: } else if (equals(c_token, "z")) {
665: autoscale_z = FALSE;
666: c_token++;
667: }
668: } else if (almost_equals(c_token,"nobor$der")) {
669: draw_border = 0;
670: c_token++;
671: }
672: else if (almost_equals(c_token,"box$width")) {
673: struct value a;
674: c_token++;
675: if (END_OF_COMMAND)
676: boxwidth = -1.0;
677: else
678: /* if((boxwidth = real(const_express(&a))) != -2.0)*/
679: /* boxwidth = magnitude(const_express(&a));*/
680: boxwidth = real(const_express(&a));
681: } else if (almost_equals(c_token,"c$lip")) {
682: c_token++;
683: if (END_OF_COMMAND)
684: /* assuming same as points */
685: clip_points = TRUE;
686: else if (almost_equals(c_token, "p$oints"))
687: clip_points = TRUE;
688: else if (almost_equals(c_token, "o$ne"))
689: clip_lines1 = TRUE;
690: else if (almost_equals(c_token, "t$wo"))
691: clip_lines2 = TRUE;
692: else
693: int_error("expecting 'points', 'one', or 'two'", c_token);
694: c_token++;
695: } else if (almost_equals(c_token,"noc$lip")) {
696: c_token++;
697: if (END_OF_COMMAND) {
698: /* same as all three */
699: clip_points = FALSE;
700: clip_lines1 = FALSE;
701: clip_lines2 = FALSE;
702: } else if (almost_equals(c_token, "p$oints"))
703: clip_points = FALSE;
704: else if (almost_equals(c_token, "o$ne"))
705: clip_lines1 = FALSE;
706: else if (almost_equals(c_token, "t$wo"))
707: clip_lines2 = FALSE;
708: else
709: int_error("expecting 'points', 'one', or 'two'", c_token);
710: c_token++;
711: } else if (almost_equals(c_token,"hi$dden3d")) {
712: #ifdef LITE
713: printf(" Hidden Line Removal Not Supported in LITE version\n");
714: c_token++;
715: #else
716: /* HBB 970618: new parsing engine for hidden3d options */
717: set_hidden3doptions();
718: hidden3d = TRUE;
719: #endif /* LITE */
720: } else if (almost_equals(c_token,"nohi$dden3d")) {
721: #ifdef LITE
722: printf(" Hidden Line Removal Not Supported in LITE version\n");
723: #else
724: hidden3d = FALSE;
725: #endif /* LITE */
726: c_token++;
727: } else if (almost_equals(c_token,"cla$bel")) {
728: label_contours = TRUE;
729: c_token++;
730: if (isstring(c_token))
731: quote_str(contour_format, c_token++, 30);
732: } else if (almost_equals(c_token,"nocla$bel")) {
733: label_contours = FALSE;
734: c_token++;
735: } else if (almost_equals(c_token,"ma$pping3d")) {
736: c_token++;
737: if (END_OF_COMMAND)
738: /* assuming same as points */
739: mapping3d = MAP3D_CARTESIAN;
740: else if (almost_equals(c_token, "ca$rtesian"))
741: mapping3d = MAP3D_CARTESIAN;
742: else if (almost_equals(c_token, "s$pherical"))
743: mapping3d = MAP3D_SPHERICAL;
744: else if (almost_equals(c_token, "cy$lindrical"))
745: mapping3d = MAP3D_CYLINDRICAL;
746: else
747: int_error("expecting 'cartesian', 'spherical', or 'cylindrical'", c_token);
748: c_token++;
749: } else if (almost_equals(c_token,"co$ntour")) {
750: c_token++;
751: if (END_OF_COMMAND)
752: /* assuming same as points */
753: draw_contour = CONTOUR_BASE;
754: else {
755: if (almost_equals(c_token, "ba$se"))
756: draw_contour = CONTOUR_BASE;
757: else if (almost_equals(c_token, "s$urface"))
758: draw_contour = CONTOUR_SRF;
759: else if (almost_equals(c_token, "bo$th"))
760: draw_contour = CONTOUR_BOTH;
761: else
762: int_error("expecting 'base', 'surface', or 'both'", c_token);
763: c_token++;
764: }
765: } else if (almost_equals(c_token,"noco$ntour")) {
766: c_token++;
767: draw_contour = CONTOUR_NONE;
768: } else if (almost_equals(c_token,"cntrp$aram")) {
769: struct value a;
770:
771: c_token++;
772: if (END_OF_COMMAND) {
773: /* assuming same as defaults */
774: contour_pts = 5;
775: contour_kind = CONTOUR_KIND_LINEAR;
776: contour_order = 4;
777: contour_levels = 5;
778: levels_kind = LEVELS_AUTO;
779: } else if (almost_equals(c_token, "p$oints")) {
780: c_token++;
781: contour_pts = (int) real(const_express(&a));
782: } else if (almost_equals(c_token, "li$near")) {
783: c_token++;
784: contour_kind = CONTOUR_KIND_LINEAR;
785: } else if (almost_equals(c_token, "c$ubicspline")) {
786: c_token++;
787: contour_kind = CONTOUR_KIND_CUBIC_SPL;
788: } else if (almost_equals(c_token, "b$spline")) {
789: c_token++;
790: contour_kind = CONTOUR_KIND_BSPLINE;
791: } else if (almost_equals(c_token, "le$vels")) {
792: int i = 0; /* local counter */
793: c_token++;
794: /* RKC: I have modified the next two:
795: * to use commas to separate list elements as in xtics
796: * so that incremental lists start,incr[,end]as in "
797: */
798: if (almost_equals(c_token, "di$screte")) {
799: levels_kind = LEVELS_DISCRETE;
800: c_token++;
801: if(END_OF_COMMAND)
802: int_error("expecting discrete level", c_token);
803: else
804: levels_list[i++] = real(const_express(&a));
805:
806: while(!END_OF_COMMAND) {
807: if (!equals(c_token, ","))
808: int_error("expecting comma to separate discrete levels", c_token);
809: c_token++;
810: levels_list[i++] = real(const_express(&a));
811: }
812: contour_levels = i;
813: } else if (almost_equals(c_token, "in$cremental")) {
814: levels_kind = LEVELS_INCREMENTAL;
815: c_token++;
816: levels_list[i++] = real(const_express(&a));
817: if (!equals(c_token, ","))
818: int_error("expecting comma to separate start,incr levels", c_token);
819: c_token++;
820: if((levels_list[i++] = real(const_express(&a))) == 0)
821: int_error("increment cannot be 0", c_token);
822: if(!END_OF_COMMAND) {
823: if (!equals(c_token, ","))
824: int_error("expecting comma to separate incr,stop levels", c_token);
825: c_token++;
826: /* need to round up, since 10,10,50 is 5 levels, not four,
827: * but 10,10,49 is four
828: */
829: contour_levels = (int) ( (real(const_express(&a))-levels_list[0])/levels_list[1] + 1.0);
830: }
831: } else if (almost_equals(c_token, "au$to")) {
832: levels_kind = LEVELS_AUTO;
833: c_token++;
834: if(!END_OF_COMMAND)
835: contour_levels = (int) real(const_express(&a));
836: } else {
837: if(levels_kind == LEVELS_DISCRETE)
838: int_error("Levels type is discrete, ignoring new number of contour levels", c_token);
839: contour_levels = (int) real(const_express(&a));
840: }
841: } else if (almost_equals(c_token, "o$rder")) {
842: int order;
843: c_token++;
844: order = (int) real(const_express(&a));
845: if ( order < 2 || order > 10 )
846: int_error("bspline order must be in [2..10] range.", c_token);
847: contour_order = order;
848: } else
849: int_error("expecting 'linear', 'cubicspline', 'bspline', 'points', 'levels' or 'order'", c_token);
850: } else if (almost_equals(c_token,"da$ta")) {
851: c_token++;
852: if (!almost_equals(c_token,"s$tyle"))
853: int_error("expecting keyword 'style'",c_token);
854: data_style = get_style();
855: } else if (almost_equals(c_token,"dg$rid3d")) {
856: int i;
857: TBOOLEAN was_comma = TRUE;
858: int local_vals[3];
859: struct value a;
860:
861: local_vals[0] = dgrid3d_row_fineness;
862: local_vals[1] = dgrid3d_col_fineness;
863: local_vals[2] = dgrid3d_norm_value;
864: c_token++;
865: for (i = 0; i < 3 && !(END_OF_COMMAND);) {
866: if (equals(c_token,",")) {
867: if (was_comma) i++;
868: was_comma = TRUE;
869: c_token++;
870: } else {
871: if (!was_comma)
872: int_error("',' expected",c_token);
873: local_vals[i] = real(const_express(&a));
874: i++;
875: was_comma = FALSE;
876: }
877: }
878:
879: if (local_vals[0] < 2 || local_vals[0] > 1000)
880: int_error("Row size must be in [2:1000] range; size unchanged",
881: c_token);
882: if (local_vals[1] < 2 || local_vals[1] > 1000)
883: int_error("Col size must be in [2:1000] range; size unchanged",
884: c_token);
885: if (local_vals[2] < 1 || local_vals[2] > 100)
886: int_error("Norm must be in [1:100] range; norm unchanged", c_token);
887:
888: dgrid3d_row_fineness = local_vals[0];
889: dgrid3d_col_fineness = local_vals[1];
890: dgrid3d_norm_value = local_vals[2];
891: dgrid3d = TRUE;
892: } else if (almost_equals(c_token,"nodg$rid3d")) {
893: c_token++;
894: dgrid3d = FALSE;
895: } else if (almost_equals(c_token,"mis$sing")) {
896: c_token++;
897: if (END_OF_COMMAND) {
898: if (missing_val)
899: free(missing_val);
900: missing_val = NULL;
901: } else {
902: if (!isstring(c_token))
903: int_error("Expected missing-value string", c_token);
904: m_quote_capture(&missing_val, c_token, c_token);
905: c_token++;
906: }
907: } else if (almost_equals(c_token,"nomis$sing")) {
908: ++c_token;
909: if (missing_val)
910: free(missing_val);
911: missing_val = NULL;
912: } else if (almost_equals(c_token,"du$mmy")) {
913: c_token++;
914: if (END_OF_COMMAND)
915: int_error("expecting dummy variable name", c_token);
916: else {
917: if (!equals(c_token,","))
918: copy_str(dummy_var[0],c_token++, MAX_ID_LEN);
919: if (!END_OF_COMMAND && equals(c_token,",")) {
920: c_token++;
921: if (END_OF_COMMAND)
922: int_error("expecting second dummy variable name", c_token);
923: copy_str(dummy_var[1],c_token++, MAX_ID_LEN);
924: }
925: }
926: } else if (almost_equals(c_token,"fo$rmat")) {
927: TBOOLEAN setx = FALSE, sety = FALSE, setz = FALSE;
928: TBOOLEAN setx2 = FALSE, sety2 = FALSE;
929: c_token++;
930: if (equals(c_token,"x")) {
931: setx = TRUE;
932: c_token++;
933: } else if (equals(c_token,"y")) {
934: sety = TRUE;
935: c_token++;
936: } else if (equals(c_token,"x2")) {
937: setx2 = TRUE;
938: c_token++;
939: } else if (equals(c_token,"y2")) {
940: sety2 = TRUE;
941: c_token++;
942: } else if (equals(c_token,"z")) {
943: setz = TRUE;
944: c_token++;
945: } else if (equals(c_token,"xy") || equals(c_token,"yx")) {
946: setx = sety = TRUE;
947: c_token++;
948: } else if (isstring(c_token) || END_OF_COMMAND) {
949: /* Assume he wants all */
950: setx = sety = setz = setx2 = sety2 = TRUE;
951: }
952:
953: if (END_OF_COMMAND) {
954: if (setx) {
955: (void) strcpy(xformat,DEF_FORMAT);
956: format_is_numeric[FIRST_X_AXIS] = 1;
957: }
958: if (sety) {
959: (void) strcpy(yformat,DEF_FORMAT);
960: format_is_numeric[FIRST_Y_AXIS] = 1;
961: }
962: if (setz) {
963: (void) strcpy(zformat,DEF_FORMAT);
964: format_is_numeric[FIRST_Z_AXIS] = 1;
965: }
966: if (setx2) {
967: (void) strcpy(x2format,DEF_FORMAT);
968: format_is_numeric[SECOND_X_AXIS] = 1;
969: }
970: if (sety2) {
971: (void) strcpy(y2format,DEF_FORMAT);
972: format_is_numeric[SECOND_Y_AXIS] = 1;
973: }
974: } else {
975: if (!isstring(c_token))
976: int_error("expecting format string",c_token);
977: else {
978: if (setx) {
979: quote_str(xformat,c_token, MAX_ID_LEN);
980: format_is_numeric[FIRST_X_AXIS] = looks_like_numeric(xformat);
981: }
982: if (sety) {
983: quote_str(yformat,c_token, MAX_ID_LEN);
984: format_is_numeric[FIRST_Y_AXIS] = looks_like_numeric(yformat);
985: }
986: if (setz) {
987: quote_str(zformat,c_token, MAX_ID_LEN);
988: format_is_numeric[FIRST_Z_AXIS] =looks_like_numeric(zformat);
989: }
990: if (setx2) {
991: quote_str(x2format,c_token, MAX_ID_LEN);
992: format_is_numeric[SECOND_X_AXIS] = looks_like_numeric(x2format);
993: }
994: if (sety2) {
995: quote_str(y2format,c_token, MAX_ID_LEN);
996: format_is_numeric[SECOND_Y_AXIS] = looks_like_numeric(y2format);
997: }
998: c_token++;
999: }
1000: }
1001: } else if (almost_equals(c_token,"fu$nction")) {
1002: c_token++;
1003: if (!almost_equals(c_token,"s$tyle"))
1004: int_error("expecting keyword 'style'",c_token);
1005: func_style = get_style();
1006: } else if (almost_equals(c_token,"la$bel")) {
1007: c_token++;
1008: set_label();
1009: } else if (almost_equals(c_token,"nola$bel")) {
1010: c_token++;
1011: set_nolabel();
1012: } else if (almost_equals(c_token,"li$nestyle") || equals(c_token, "ls" )) {
1013: c_token++;
1014: set_linestyle();
1015: } else if (almost_equals(c_token,"noli$nestyle") || equals(c_token, "nols" )) {
1016: c_token++;
1017: set_nolinestyle();
1018: } else if (almost_equals(c_token,"lo$gscale")) {
1019: c_token++;
1020: if (END_OF_COMMAND) {
1021: is_log_x = is_log_y = is_log_z = is_log_x2 = is_log_y2 = TRUE;
1022: base_log_x = base_log_y = base_log_z = base_log_x2 = base_log_y2 = 10.0;
1023: log_base_log_x = log_base_log_y = log_base_log_z = log_base_log_x2 = log_base_log_y2 = M_LN10;
1024: } else {
1025: TBOOLEAN change_x = FALSE;
1026: TBOOLEAN change_y = FALSE;
1027: TBOOLEAN change_z = FALSE;
1028: TBOOLEAN change_x2 = FALSE;
1029: TBOOLEAN change_y2 = FALSE;
1030: double newbase = 10, log_newbase;
1031:
1032: if (equals(c_token, "x2"))
1033: change_x2 = TRUE;
1034: else if (equals(c_token, "y2"))
1035: change_y2 = TRUE;
1036: else { /* must not see x when x2, etc */
1037: if (chr_in_str(c_token, 'x'))
1038: change_x = TRUE;
1039: if (chr_in_str(c_token, 'y'))
1040: change_y = TRUE;
1041: if (chr_in_str(c_token, 'z'))
1042: change_z = TRUE;
1043: }
1044: c_token++;
1045: if (!END_OF_COMMAND) {
1046: struct value a;
1047: newbase = magnitude(const_express(&a));
1048: if (newbase < 1.1)
1049: int_error("log base must be >= 1.1; logscale unchanged",
1050: c_token);
1051: }
1052: log_newbase = log(newbase);
1053:
1054: if (change_x) {
1055: is_log_x = TRUE;
1056: base_log_x = newbase;
1057: log_base_log_x = log_newbase;
1058: }
1059: if (change_y) {
1060: is_log_y = TRUE;
1061: base_log_y = newbase;
1062: log_base_log_y = log_newbase;
1063: }
1064: if (change_z) {
1065: is_log_z = TRUE;
1066: base_log_z = newbase;
1067: log_base_log_z = log_newbase;
1068: }
1069: if (change_x2) {
1070: is_log_x2 = TRUE;
1071: base_log_x2 = newbase;
1072: log_base_log_x2 = log_newbase;
1073: }
1074: if (change_y2) {
1075: is_log_y2 = TRUE;
1076: base_log_y2 = newbase;
1077: log_base_log_y2 = log_newbase;
1078: }
1079: }
1080: } else if (almost_equals(c_token,"nolo$gscale")) {
1081: c_token++;
1082: if (END_OF_COMMAND) {
1083: is_log_x = is_log_y = is_log_z = is_log_x2 = is_log_y2 = FALSE;
1084: } else if (equals(c_token, "x2")) {
1085: is_log_x2 = FALSE; ++c_token;
1086: } else if (equals(c_token, "y2")) {
1087: is_log_y2 = FALSE; ++c_token;
1088: } else {
1089: if (chr_in_str(c_token, 'x')) {
1090: is_log_x = FALSE;
1091: base_log_x = 0.0;
1092: log_base_log_x = 0.0;
1093: }
1094: if (chr_in_str(c_token, 'y')) {
1095: is_log_y = FALSE;
1096: base_log_y = 0.0;
1097: log_base_log_y = 0.0;
1098: }
1099: if (chr_in_str(c_token, 'z')) {
1100: is_log_z = FALSE;
1101: base_log_z = 0.0;
1102: log_base_log_z = 0.0;
1103: }
1104: c_token++;
1105: }
1106: } else if (almost_equals(c_token,"of$fsets")) {
1107: c_token++;
1108: if (END_OF_COMMAND) {
1109: loff = roff = toff = boff = 0.0; /* Reset offsets */
1110: } else {
1111: load_offsets (&loff,&roff,&toff,&boff);
1112: }
1113: } else if (almost_equals(c_token, "noof$fsets")) {
1114: loff = roff = toff = boff = 0.0;
1115: ++c_token;
1116: } else if(almost_equals(c_token,"b$ars")) {
1117: c_token++;
1118: if(END_OF_COMMAND) {
1119: bar_size = 1.0;
1120: } else if(almost_equals(c_token,"s$mall")) {
1121: bar_size = 0.0;
1122: ++c_token;
1123: } else if(almost_equals(c_token,"l$arge")) {
1124: bar_size = 1.0;
1125: ++c_token;
1126: } else {
1127: struct value a;
1128: bar_size = real(const_express(&a));
1129: }
1130: } else if (almost_equals(c_token, "nob$ars")) {
1131: ++c_token;
1132: bar_size = 0.0;
1133: } else if (almost_equals(c_token, "enco$ding")) {
1134: c_token++;
1135: if(END_OF_COMMAND) {
1136: encoding = ENCODING_DEFAULT;
1137: } else if (almost_equals(c_token,"def$ault")) {
1138: c_token++;
1139: encoding = ENCODING_DEFAULT;
1140: } else if (almost_equals(c_token,"iso$_8859_1")) {
1141: c_token++;
1142: encoding = ENCODING_ISO_8859_1;
1143: } else if (almost_equals(c_token,"cp4$37")) {
1144: c_token++;
1145: encoding = ENCODING_CP_437;
1146: } else if (almost_equals(c_token,"cp8$50")) {
1147: c_token++;
1148: encoding = ENCODING_CP_850;
1149: } else {
1150: int_error("expecting one of 'default', 'iso_8859_1', 'cp437' or 'cp850'", c_token);
1151: }
1152: } else
1153: return(FALSE); /* no command match */
1154:
1155: return(TRUE);
1156: }
1157:
1158:
1159: /* return TRUE if a command match, FALSE if not */
1160: static TBOOLEAN
1161: set_two()
1162: {
1163: if (almost_equals(c_token,"o$utput")) {
1164: if (multiplot) {
1165: int_error("you can't change the output in multiplot mode", c_token);
1166: }
1167:
1168: c_token++;
1169: if (END_OF_COMMAND) { /* no file specified */
1170: term_set_output(NULL);
1171: if (outstr) {
1172: free(outstr);
1173: outstr = NULL; /* means STDOUT */
1174: }
1175: } else if (!isstring(c_token)) {
1176: int_error("expecting filename",c_token);
1177: } else {
1178: /* on int_error, we'd like to remember that this is allocated */
1179: static char *testfile = NULL;
1180: m_quote_capture(&testfile,c_token, c_token); /* reallocs store */
1181: /* Skip leading whitespace */
1182: while (isspace((int)*testfile))
1183: testfile++;
1184: ++c_token;
1185: term_set_output(testfile);
1186: /* if we get here then it worked, and outstr now = testfile */
1187: testfile = NULL;
1188: }
1189: } else if (almost_equals(c_token,"origin")) {
1190: struct value s;
1191: c_token++;
1192: if (END_OF_COMMAND) {
1193: xoffset = 0.0;
1194: yoffset = 0.0;
1195: } else {
1196: xoffset = real(const_express(&s));
1197: if (!equals(c_token,","))
1198: int_error("',' expected",c_token);
1199: c_token++;
1200: yoffset = real(const_express(&s));
1201: }
1202: } else if (almost_equals(c_token,"tit$le")) {
1203: set_xyzlabel(&title);
1204: } else if (almost_equals(c_token,"xl$abel")) {
1205: set_xyzlabel(&xlabel);
1206: } else if (almost_equals(c_token,"yl$abel")) {
1207: set_xyzlabel(&ylabel);
1208: } else if (almost_equals(c_token,"zl$abel")) {
1209: set_xyzlabel(&zlabel);
1210: } else if (almost_equals(c_token,"x2l$abel")) {
1211: set_xyzlabel(&x2label);
1212: } else if (almost_equals(c_token,"y2l$abel")) {
1213: set_xyzlabel(&y2label);
1214: } else if (almost_equals(c_token,"keyt$itle")) {
1215: c_token++;
1216: if (END_OF_COMMAND) { /* set to default */
1217: key_title[0] = NUL;
1218: } else {
1219: if (isstring(c_token)) {
1220: /* We have string specified - grab it. */
1221: quote_str(key_title,c_token, MAX_LINE_LEN);
1222: c_token++;
1223: }
1224: /* c_token++; */
1225: }
1226: } else if (almost_equals(c_token, "nokeyt$itle")) {
1227: ++c_token;
1228: *key_title = 0;
1229: } else if (almost_equals(c_token,"timef$mt")) {
1230: c_token++;
1231: if (END_OF_COMMAND) { /* set to default */
1232: strcpy(timefmt,TIMEFMT);
1233: } else {
1234: if (isstring(c_token)) {
1235: /* We have string specified - grab it. */
1236: quote_str(timefmt,c_token, 25);
1237: }
1238: c_token++;
1239: }
1240: } else if (almost_equals(c_token,"loc$ale")) {
1241: c_token++;
1242: if (END_OF_COMMAND) {
1243: set_locale("C");
1244: } else if (isstring(c_token)) {
1245: char ss[MAX_ID_LEN+1];
1246: quote_str(ss,c_token,MAX_ID_LEN);
1247: set_locale(ss);
1248: ++c_token;
1249: } else {
1250: int_error("Expected string", c_token);
1251: }
1252: }
1253:
1254: #define DO_ZEROAX(variable, string,neg) \
1255: else if (almost_equals(c_token, string)) { \
1256: ++c_token; if (END_OF_COMMAND) variable.l_type = -1; \
1257: else { \
1258: struct value a; \
1259: int old_token = c_token;\
1260: LP_PARSE(variable,1,0,-1,0); \
1261: if (old_token == c_token) \
1262: variable.l_type = real(const_express(&a)) - 1; \
1263: }\
1264: } else if (almost_equals(c_token, neg)) { \
1265: ++c_token; variable.l_type = -3; \
1266: }
1267:
1268: DO_ZEROAX(xzeroaxis, "xzero$axis", "noxzero$axis")
1269: DO_ZEROAX(yzeroaxis, "yzero$axis", "noyzero$axis")
1270: DO_ZEROAX(x2zeroaxis, "x2zero$axis", "nox2zero$axis")
1271: DO_ZEROAX(y2zeroaxis, "y2zero$axis", "noy2zero$axis")
1272:
1273: else if (almost_equals(c_token,"zeroa$xis")) {
1274: c_token++;
1275: LP_PARSE(xzeroaxis,1,0,-1,0);
1276: memcpy(&yzeroaxis,&xzeroaxis,sizeof(struct lp_style_type));
1277: } else if (almost_equals(c_token,"nozero$axis")) {
1278: c_token++;
1279: xzeroaxis.l_type = -3;
1280: yzeroaxis.l_type = -3;
1281: x2zeroaxis.l_type = -3;
1282: y2zeroaxis.l_type = -3;
1283: } else if (almost_equals(c_token,"par$ametric")) {
1284: if (!parametric) {
1285: parametric = TRUE;
1286: if (!polar) { /* already done for polar */
1287: strcpy (dummy_var[0], "t");
1288: strcpy (dummy_var[1], "y");
1289: if (interactive)
1290: (void) fprintf(stderr,"\n\tdummy variable is t for curves, u/v for surfaces\n");
1291: }
1292: }
1293: c_token++;
1294: } else if (almost_equals(c_token,"nopar$ametric")) {
1295: if (parametric) {
1296: parametric = FALSE;
1297: if (!polar) { /* keep t for polar */
1298: strcpy (dummy_var[0], "x");
1299: strcpy (dummy_var[1], "y");
1300: if (interactive)
1301: (void) fprintf(stderr,"\n\tdummy variable is x for curves, x/y for surfaces\n");
1302: }
1303: }
1304: c_token++;
1305: } else if (almost_equals(c_token, "poi$ntsize")) {
1306: struct value a;
1307: c_token++;
1308: if (END_OF_COMMAND)
1309: pointsize = 1.0;
1310: else
1311: pointsize = real(const_express(&a));
1312: if(pointsize <= 0) pointsize = 1;
1313: } else if (almost_equals(c_token,"pol$ar")) {
1314: if (!polar) {
1315: if (!parametric) {
1316: if (interactive)
1317: (void) fprintf(stderr,"\n\tdummy variable is t for curves\n");
1318: strcpy (dummy_var[0], "t");
1319: }
1320: polar = TRUE;
1321: if (autoscale_t) {
1322: /* only if user has not set a range manually */
1323: tmin = 0.0;
1324: tmax = 2*Pi / ang2rad; /* 360 if degrees, 2pi if radians */
1325: }
1326: }
1327: c_token++;
1328: } else if (almost_equals(c_token,"nopo$lar")) {
1329: if (polar) {
1330: polar = FALSE;
1331: if (parametric && autoscale_t) {
1332: /* only if user has not set an explicit range */
1333: tmin = -5.0;
1334: tmax = 5.0;
1335: }
1336: if (!parametric) {
1337: strcpy (dummy_var[0], "x");
1338: if (interactive)
1339: (void) fprintf(stderr,"\n\tdummy variable is x for curves\n");
1340: }
1341: }
1342: c_token++;
1343: } else if (almost_equals(c_token,"an$gles")) {
1344: c_token++;
1345: if (END_OF_COMMAND) {
1346: /* assuming same as defaults */
1347: angles_format = ANGLES_RADIANS;
1348: ang2rad = 1;
1349: } else if (almost_equals(c_token, "r$adians")) {
1350: angles_format = ANGLES_RADIANS;
1351: c_token++;
1352: ang2rad = 1;
1353: } else if (almost_equals(c_token, "d$egrees")) {
1354: angles_format = ANGLES_DEGREES;
1355: c_token++;
1356: ang2rad = DEG2RAD;
1357: } else
1358: int_error("expecting 'radians' or 'degrees'", c_token);
1359:
1360: if (polar && autoscale_t) {
1361: /* set trange if in polar mode and no explicit range */
1362: tmin = 0;
1363: tmax = 2*Pi/ang2rad;
1364: }
1365: }
1366:
1367: #define GRID_MATCH(string, neg, mask) \
1368: if (almost_equals(c_token, string)) { work_grid.l_type |= mask; ++c_token; } \
1369: else if (almost_equals(c_token, neg)) { work_grid.l_type &= ~(mask); ++c_token; }
1370:
1371: else if (almost_equals(c_token,"g$rid")) {
1372: c_token++;
1373: if (END_OF_COMMAND && !work_grid.l_type)
1374: work_grid.l_type = GRID_X|GRID_Y;
1375: else
1376: while (!END_OF_COMMAND) {
1377: GRID_MATCH("x$tics", "nox$tics", GRID_X)
1378: else GRID_MATCH("y$tics", "noy$tics", GRID_Y)
1379: else GRID_MATCH("z$tics", "noz$tics", GRID_Z)
1380: else GRID_MATCH("x2$tics", "nox2$tics", GRID_X2)
1381: else GRID_MATCH("y2$tics", "noy2$tics", GRID_Y2)
1382: else GRID_MATCH("mx$tics", "nomx$tics", GRID_MX)
1383: else GRID_MATCH("my$tics", "nomy$tics", GRID_MY)
1384: else GRID_MATCH("mz$tics", "nomz$tics", GRID_MZ)
1385: else GRID_MATCH("mx2$tics", "nomx2$tics", GRID_MX2)
1386: else GRID_MATCH("my2$tics", "nomy2$tics", GRID_MY2)
1387: else if (almost_equals(c_token,"po$lar")) {
1388: if (!work_grid.l_type)
1389: work_grid.l_type = GRID_X;
1390: c_token++;
1391: if (END_OF_COMMAND) {
1392: polar_grid_angle = 30*DEG2RAD;
1393: } else {
1394: /* get radial interval */
1395: struct value a;
1396: polar_grid_angle = ang2rad*real(const_express(&a));
1397: }
1398: } else if (almost_equals(c_token,"nopo$lar")) {
1399: polar_grid_angle = 0; /* not polar grid */
1400: c_token++;
1401: } else
1402: break; /* might be a linetype */
1403: }
1404:
1405: if (!END_OF_COMMAND) {
1406: struct value a;
1407: int old_token = c_token;
1408:
1409: LP_PARSE(grid_lp,1,0,-1,1);
1410: if (c_token == old_token) { /* nothing parseable found... */
1411: grid_lp.l_type = real(const_express(&a)) - 1;
1412: }
1413:
1414: if (!work_grid.l_type)
1415: work_grid.l_type = GRID_X|GRID_Y;
1416: /* probably just set grid <linetype> */
1417:
1418: if (END_OF_COMMAND) {
1419: memcpy(&mgrid_lp,&grid_lp,sizeof(struct lp_style_type));
1420: } else {
1421: if (equals(c_token,","))
1422: c_token++;
1423: old_token = c_token;
1424: LP_PARSE(mgrid_lp,1,0,-1,1);
1425: if (c_token == old_token) {
1426: mgrid_lp.l_type = real(const_express(&a)) -1;
1427: }
1428: }
1429:
1430: if (!work_grid.l_type)
1431: work_grid.l_type = GRID_X|GRID_Y;
1432: /* probably just set grid <linetype> */
1433: }
1434:
1435: } else if (almost_equals(c_token,"nog$rid")) {
1436: work_grid.l_type = GRID_OFF;
1437: c_token++;
1438: } else if (almost_equals(c_token,"su$rface")) {
1439: draw_surface = TRUE;
1440: c_token++;
1441: } else if (almost_equals(c_token,"nosu$rface")) {
1442: draw_surface = FALSE;
1443: c_token++;
1444: } else if (almost_equals(c_token,"bor$der")) {
1445: struct value a;
1446: c_token++;
1447: if(END_OF_COMMAND){
1448: draw_border = 31;
1449: } else {
1450: draw_border = (int)real(const_express(&a));
1451: }
1452: /* HBB 980609: add linestyle handling for 'set border...' */
1453: /* For now, you have to give a border bitpattern to be able to specify a linestyle. Sorry for this,
1454: * but the gnuplot parser really is too messy for any other solution, currently */
1455: if(END_OF_COMMAND) {
1456: set_lp_properties(&border_lp, 0, -2, 0, 1.0, 1.0);
1457: } else {
1458: LP_PARSE(border_lp, 1, 0, -2, 0);
1459: }
1460: } else if (almost_equals(c_token,"k$ey")) {
1461: struct value a;
1462: c_token++;
1463: if (END_OF_COMMAND) {
1464: key = -1;
1465: key_vpos = TTOP;
1466: key_hpos = TRIGHT;
1467: key_just = JRIGHT;
1468: key_reverse = FALSE;
1469: set_lp_properties(&key_box,0,-3,0,1.0,1.0);
1470: key_swidth = 4;
1471: key_vert_factor = 1;
1472: key_width_fix = 0;
1473: key_title[0] = 0;
1474: } else {
1475: while (!END_OF_COMMAND) {
1476: if (almost_equals(c_token,"t$op")) {
1477: key_vpos = TTOP;
1478: key = -1;
1479: } else if (almost_equals(c_token,"b$ottom")) {
1480: key_vpos = TBOTTOM;
1481: key = -1;
1482: } else if (almost_equals(c_token,"l$eft")) {
1483: key_hpos = TLEFT;
1484: /* key_just = TRIGHT; */
1485: key = -1;
1486: } else if (almost_equals(c_token,"r$ight")) {
1487: key_hpos = TRIGHT;
1488: key = -1;
1489: } else if (almost_equals(c_token,"u$nder") ||
1490: almost_equals(c_token,"be$low")) {
1491: key_vpos = TUNDER;
1492: if (key_hpos == TOUT)
1493: key_hpos--;
1494: key = -1;
1495: } else if (almost_equals(c_token,"o$utside")) {
1496: key_hpos = TOUT;
1497: if (key_vpos == TUNDER)
1498: key_vpos--;
1499: key = -1;
1500: } else if (almost_equals(c_token,"L$eft")) {
1501: /* key_hpos = TLEFT; */
1502: key_just = JLEFT;
1503: /* key = -1; */
1504: } else if (almost_equals(c_token,"R$ight")) {
1505: /* key_hpos = TLEFT; */
1506: key_just = JRIGHT;
1507: /* key = -1; */
1508: } else if (almost_equals(c_token,"rev$erse")) {
1509: key_reverse = TRUE;
1510: } else if (almost_equals(c_token,"norev$erse")) {
1511: key_reverse = FALSE;
1512: } else if (equals(c_token,"box")) {
1513: ++c_token;
1514: if (END_OF_COMMAND)
1515: key_box.l_type = -2;
1516: else {
1517: int old_token = c_token;
1518:
1519: LP_PARSE(key_box,1,0,-2,0);
1520: if (old_token == c_token) {
1521: key_box.l_type = real(const_express(&a)) -1;
1522: }
1523: }
1524: --c_token; /* is incremented after loop */
1525: } else if (almost_equals(c_token,"nob$ox")) {
1526: key_box.l_type = -3;
1527: } else if (almost_equals(c_token, "sa$mplen")) {
1528: ++c_token;
1529: key_swidth = real(const_express(&a));
1530: --c_token; /* it is incremented after loop */
1531: } else if (almost_equals(c_token, "sp$acing")) {
1532: ++c_token;
1533: key_vert_factor = real(const_express(&a));
1534: if (key_vert_factor < 0.0)
1535: key_vert_factor = 0.0;
1536: --c_token; /* it is incremented after loop */
1537: } else if (almost_equals(c_token, "w$idth")) {
1538: ++c_token;
1539: key_width_fix = real(const_express(&a));
1540: --c_token; /* it is incremented after loop */
1541: } else if (almost_equals(c_token,"ti$tle")) {
1542: if (isstring(c_token+1)) {
1543: /* We have string specified - grab it. */
1544: quote_str(key_title,++c_token, MAX_LINE_LEN);
1545: }
1546: else
1547: key_title[0] = 0;
1548: } else {
1549: get_position(&key_user_pos);
1550: key = 1;
1551: --c_token; /* will be incremented again soon */
1552: }
1553: c_token++;
1554: }
1555: }
1556: } else if (almost_equals(c_token,"nok$ey")) {
1557: key = 0;
1558: c_token++;
1559: } else if (almost_equals(c_token,"tic$s")) {
1560: tic_in = TRUE;
1561: c_token++;
1562: if (almost_equals(c_token,"i$n")) {
1563: tic_in = TRUE;
1564: c_token++;
1565: } else if (almost_equals(c_token,"o$ut")) {
1566: tic_in = FALSE;
1567: c_token++;
1568: }
1569: } else if (almost_equals(c_token,"xda$ta")) {
1570: c_token++;
1571: if(END_OF_COMMAND) {
1572: datatype[FIRST_X_AXIS] = FALSE;
1573: /* eh ? - t and u have nothing to do with x */
1574: datatype[T_AXIS] = FALSE;
1575: datatype[U_AXIS] = FALSE;
1576: } else {
1577: if (almost_equals(c_token,"t$ime")) {
1578: datatype[FIRST_X_AXIS] = TIME;
1579: datatype[T_AXIS] = TIME;
1580: datatype[U_AXIS] = TIME;
1581: } else {
1582: datatype[FIRST_X_AXIS] = FALSE;
1583: datatype[T_AXIS] = FALSE;
1584: datatype[U_AXIS] = FALSE;
1585: }
1586: c_token++;
1587: }
1588: } else if (almost_equals(c_token,"yda$ta")) {
1589: c_token++;
1590: if(END_OF_COMMAND) {
1591: datatype[FIRST_Y_AXIS] = FALSE;
1592: datatype[V_AXIS] = FALSE;
1593: } else {
1594: if (almost_equals(c_token,"t$ime")) {
1595: datatype[FIRST_Y_AXIS] = TIME;
1596: datatype[V_AXIS] = TIME;
1597: } else {
1598: datatype[FIRST_Y_AXIS] = FALSE;
1599: datatype[V_AXIS] = FALSE;
1600: }
1601: c_token++;
1602: }
1603: } else if (almost_equals(c_token,"zda$ta")) {
1604: c_token++;
1605: if(END_OF_COMMAND) {
1606: datatype[FIRST_Z_AXIS] = FALSE;
1607: } else {
1608: if (almost_equals(c_token,"t$ime")) {
1609: datatype[FIRST_Z_AXIS] = TIME;
1610: } else {
1611: datatype[FIRST_Z_AXIS] = FALSE;
1612: }
1613: c_token++;
1614: }
1615: } else if (almost_equals(c_token,"x2da$ta")) {
1616: c_token++;
1617: if(END_OF_COMMAND) {
1618: datatype[SECOND_X_AXIS] = FALSE;
1619: } else {
1620: if (almost_equals(c_token,"t$ime")) {
1621: datatype[SECOND_X_AXIS] = TIME;
1622: } else {
1623: datatype[SECOND_X_AXIS] = FALSE;
1624: }
1625: c_token++;
1626: }
1627: } else if (almost_equals(c_token,"y2da$ta")) {
1628: c_token++;
1629: if(END_OF_COMMAND) {
1630: datatype[SECOND_Y_AXIS] = FALSE;
1631: } else {
1632: if (almost_equals(c_token,"t$ime")) {
1633: datatype[SECOND_Y_AXIS] = TIME;
1634: } else {
1635: datatype[SECOND_Y_AXIS] = FALSE;
1636: }
1637: c_token++;
1638: }
1639: }
1640:
1641: /* to save duplicating code for x/y/z/x2/y2, make a macro
1642: * (should perhaps be a function ?)
1643: * unfortunately, string concatenation is not supported on all compilers,
1644: * so we have to explicitly include both 'on' and 'no' strings in
1645: * the args
1646: */
1647:
1648: /* change to a function: lph 25.09.1998 */
1649:
1650: #define PROCESS_TIC_COMMANDS set_tic_prop
1651:
1652: else if
1653: (PROCESS_TIC_COMMANDS(&x2tics, &mx2tics, &mx2tfreq, &x2ticdef,
1654: SECOND_X_AXIS, &rotate_x2tics, "x2") );
1655: else if
1656: (PROCESS_TIC_COMMANDS(&y2tics, &my2tics, &my2tfreq, &y2ticdef,
1657: SECOND_Y_AXIS, &rotate_y2tics, "y2") );
1658: else if
1659: (PROCESS_TIC_COMMANDS(&xtics, &mxtics, &mxtfreq, &xticdef,
1660: FIRST_X_AXIS, &rotate_xtics, "x") );
1661: else if
1662: (PROCESS_TIC_COMMANDS(&ytics, &mytics, &mytfreq, &yticdef,
1663: FIRST_Y_AXIS, &rotate_ytics, "y") );
1664: else if
1665: (PROCESS_TIC_COMMANDS(&ztics, &mztics, &mztfreq, &zticdef,
1666: FIRST_Z_AXIS, &rotate_ztics, "z") );
1667:
1668: else if (almost_equals(c_token,"ticsl$evel")) {
1669: double tlvl;
1670: struct value a;
1671:
1672: c_token++;
1673: /* is datatype 'time' relevant here ? */
1674: tlvl = real(const_express(&a));
1675: ticslevel = tlvl;
1676: }
1677:
1678: #define PROCESS_MARGIN(variable, string) \
1679: else if (almost_equals(c_token,string)) {\
1680: ++c_token; if (END_OF_COMMAND) variable = -1;\
1681: else { struct value a; variable = real(const_express(&a)); } \
1682: }
1683:
1684: PROCESS_MARGIN(lmargin, "lmar$gin")
1685: PROCESS_MARGIN(bmargin, "bmar$gin")
1686: PROCESS_MARGIN(rmargin, "rmar$gin")
1687: PROCESS_MARGIN(tmargin, "tmar$gin")
1688:
1689: else
1690: return(FALSE); /* no command match */
1691:
1692: return(TRUE);
1693: }
1694:
1695:
1696:
1697: /* return TRUE if a command match, FALSE if not */
1698: static TBOOLEAN
1699: set_three()
1700: {
1701: if (almost_equals(c_token,"sa$mples")) {
1702: register int tsamp1, tsamp2;
1703: struct value a;
1704:
1705: c_token++;
1706: tsamp1 = (int)magnitude(const_express(&a));
1707: tsamp2 = tsamp1;
1708: if (!END_OF_COMMAND) {
1709: if (!equals(c_token,","))
1710: int_error("',' expected",c_token);
1711: c_token++;
1712: tsamp2 = (int)magnitude(const_express(&a));
1713: }
1714: if (tsamp1 < 2 || tsamp2 < 2)
1715: int_error("sampling rate must be > 1; sampling unchanged",c_token);
1716: else {
1717: register struct surface_points *f_3dp = first_3dplot;
1718:
1719: first_3dplot = NULL;
1720: sp_free(f_3dp);
1721:
1722: samples = tsamp1;
1723: samples_1 = tsamp1;
1724: samples_2 = tsamp2;
1725: }
1726: } else if (almost_equals(c_token,"isosa$mples")) {
1727: register int tsamp1, tsamp2;
1728: struct value a;
1729:
1730: c_token++;
1731: tsamp1 = (int)magnitude(const_express(&a));
1732: tsamp2 = tsamp1;
1733: if (!END_OF_COMMAND) {
1734: if (!equals(c_token,","))
1735: int_error("',' expected",c_token);
1736: c_token++;
1737: tsamp2 = (int)magnitude(const_express(&a));
1738: }
1739: if (tsamp1 < 2 || tsamp2 < 2)
1740: int_error("sampling rate must be > 1; sampling unchanged",c_token);
1741: else {
1742: register struct curve_points *f_p = first_plot;
1743: register struct surface_points *f_3dp = first_3dplot;
1744:
1745: first_plot = NULL;
1746: first_3dplot = NULL;
1747: cp_free(f_p);
1748: sp_free(f_3dp);
1749:
1750: iso_samples_1 = tsamp1;
1751: iso_samples_2 = tsamp2;
1752: }
1753: } else if (almost_equals(c_token,"si$ze")) {
1754: struct value s;
1755: c_token++;
1756: if (END_OF_COMMAND) {
1757: xsize = 1.0;
1758: ysize = 1.0;
1759: } else {
1760: if (almost_equals(c_token, "sq$uare")) {
1761: aspect_ratio = 1.0;
1762: ++c_token;
1763: } else if (almost_equals(c_token,"ra$tio")) {
1764: ++c_token;
1765: aspect_ratio = real(const_express(&s));
1766: } else if (almost_equals(c_token, "nora$tio") || almost_equals(c_token, "nosq$uare")) {
1767: aspect_ratio = 0.0;
1768: ++c_token;
1769: }
1770:
1771: if (!END_OF_COMMAND) {
1772: xsize = real(const_express(&s));
1773: if (equals(c_token,",")) {
1774: c_token++;
1775: ysize = real(const_express(&s));
1776: } else {
1777: ysize = xsize;
1778: }
1779: }
1780: }
1781: } else if (almost_equals(c_token,"ticsc$ale")) {
1782: struct value tscl;
1783: c_token++;
1784: if (END_OF_COMMAND) {
1785: ticscale = 1.0;
1786: miniticscale = 0.5;
1787: } else {
1788: ticscale = real(const_express(&tscl));
1789: if (END_OF_COMMAND) {
1790: miniticscale = ticscale*0.5;
1791: } else {
1792: miniticscale = real(const_express(&tscl));
1793: }
1794: }
1795: } else if (almost_equals(c_token,"t$erminal")) {
1796: if (multiplot) {
1797: int_error("You can't change the terminal in multiplot mode", c_token);
1798: }
1799:
1800: c_token++;
1801: if (END_OF_COMMAND) {
1802: list_terms();
1803: screen_ok = FALSE;
1804: } else {
1805: term_reset();
1806: term = 0; /* in case set_term() fails */
1807: term = set_term(c_token);
1808: c_token++;
1809:
1810: /* get optional mode parameters
1811: * not all drivers reset the option string before
1812: * strcat-ing to it, so we reset it for them
1813: */
1814: *term_options = 0;
1815: if (term)
1816: (*term->options)();
1817: if (interactive && *term_options)
1818: fprintf(stderr,"Options are '%s'\n",term_options);
1819: }
1820: } else if (almost_equals(c_token,"tim$estamp")) {
1821: c_token++;
1822: if (END_OF_COMMAND || !isstring(c_token))
1823: strcpy(timelabel.text, DEFAULT_TIMESTAMP_FORMAT);
1824:
1825: if (!END_OF_COMMAND) {
1826: struct value a;
1827:
1828: if (isstring(c_token)) {
1829: /* we have a format string */
1830: quote_str(timelabel.text, c_token, MAX_LINE_LEN);
1831: ++c_token;
1832: } else {
1833: strcpy(timelabel.text, DEFAULT_TIMESTAMP_FORMAT);
1834: }
1835: if (almost_equals(c_token,"t$op")) {
1836: timelabel_bottom = FALSE;
1837: ++c_token;
1838: } else if (almost_equals(c_token, "b$ottom")) {
1839: timelabel_bottom = TRUE;
1840: ++c_token;
1841: }
1842: if (almost_equals(c_token,"r$otate")) {
1843: timelabel_rotate = TRUE;
1844: ++c_token;
1845: } else if (almost_equals(c_token, "n$orotate")) {
1846: timelabel_rotate = FALSE;
1847: ++c_token;
1848: }
1849: /* We have x,y offsets specified */
1850: if (!END_OF_COMMAND && !equals(c_token,","))
1851: timelabel.xoffset = real(const_express(&a));
1852: if (!END_OF_COMMAND && equals(c_token,",")) {
1853: c_token++;
1854: timelabel.yoffset = real(const_express(&a));
1855: }
1856: if (!END_OF_COMMAND && isstring(c_token)) {
1857: quote_str(timelabel.font, c_token, MAX_LINE_LEN);
1858: ++c_token;
1859: } else {
1860: *timelabel.font = 0;
1861: }
1862: }
1863: } else if (almost_equals(c_token,"not$imestamp")) {
1864: *timelabel.text = 0;
1865: c_token++;
1866: } else if (almost_equals(c_token,"vi$ew")) {
1867: int i;
1868: TBOOLEAN was_comma = TRUE;
1869: double local_vals[4];
1870: struct value a;
1871:
1872: local_vals[0] = surface_rot_x;
1873: local_vals[1] = surface_rot_z;
1874: local_vals[2] = surface_scale;
1875: local_vals[3] = surface_zscale;
1876: c_token++;
1877: for (i = 0; i < 4 && !(END_OF_COMMAND);) {
1878: if (equals(c_token,",")) {
1879: if (was_comma) i++;
1880: was_comma = TRUE;
1881: c_token++;
1882: } else {
1883: if (!was_comma)
1884: int_error("',' expected",c_token);
1885: local_vals[i] = real(const_express(&a));
1886: i++;
1887: was_comma = FALSE;
1888: }
1889: }
1890:
1891: if (local_vals[0] < 0 || local_vals[0] > 180)
1892: int_error("rot_x must be in [0:180] degrees range; view unchanged", c_token);
1893: if (local_vals[1] < 0 || local_vals[1] > 360)
1894: int_error("rot_z must be in [0:360] degrees range; view unchanged", c_token);
1895: if (local_vals[2] < 1e-6)
1896: int_error("scale must be > 0; view unchanged", c_token);
1897: if (local_vals[3] < 1e-6)
1898: int_error("zscale must be > 0; view unchanged", c_token);
1899:
1900: surface_rot_x = local_vals[0];
1901: surface_rot_z = local_vals[1];
1902: surface_scale = local_vals[2];
1903: surface_zscale = local_vals[3];
1904: }
1905:
1906: /* to save replicated code, define a macro */
1907: #define PROCESS_RANGE(AXIS,STRING, MIN, MAX, AUTO) \
1908: else if (almost_equals(c_token, STRING)) { \
1909: if (!equals(++c_token,"[")) int_error("expecting '['",c_token); \
1910: c_token++; \
1911: AUTO = load_range(AXIS,&MIN,&MAX,AUTO); \
1912: if (!equals(c_token,"]")) int_error("expecting ']'",c_token); \
1913: c_token++; \
1914: if (almost_equals(c_token, "rev$erse")) { \
1915: ++c_token; range_flags[AXIS] |= RANGE_REVERSE;\
1916: } else if (almost_equals(c_token, "norev$erse")) { \
1917: ++c_token; range_flags[AXIS] &= ~RANGE_REVERSE;\
1918: } if (almost_equals(c_token, "wr$iteback")) { \
1919: ++c_token; range_flags[AXIS] |= RANGE_WRITEBACK;\
1920: } else if (almost_equals(c_token, "nowri$teback")) { \
1921: ++c_token; range_flags[AXIS] &= ~RANGE_WRITEBACK;\
1922: }}
1923:
1924: PROCESS_RANGE(R_AXIS, "rr$ange", rmin, rmax, autoscale_r)
1925: PROCESS_RANGE(T_AXIS, "tr$ange", tmin, tmax, autoscale_t)
1926: PROCESS_RANGE(U_AXIS, "ur$ange", umin, umax, autoscale_u)
1927: PROCESS_RANGE(V_AXIS, "vr$ange", vmin, vmax, autoscale_v)
1928: PROCESS_RANGE(FIRST_X_AXIS, "xr$ange", xmin, xmax, autoscale_x)
1929: PROCESS_RANGE(FIRST_Y_AXIS, "yr$ange", ymin, ymax, autoscale_y)
1930: PROCESS_RANGE(FIRST_Z_AXIS, "zr$ange", zmin, zmax, autoscale_z)
1931: PROCESS_RANGE(SECOND_X_AXIS, "x2r$ange", x2min, x2max, autoscale_x2)
1932: PROCESS_RANGE(SECOND_Y_AXIS, "y2r$ange", y2min, y2max, autoscale_y2)
1933:
1934: else if (almost_equals(c_token,"z$ero")) {
1935: struct value a;
1936: c_token++;
1937: zero = magnitude(const_express(&a));
1938: } else if (almost_equals(c_token,"multi$plot")) {
1939: term_start_multiplot();
1940: c_token++;
1941: } else if (almost_equals(c_token,"nomulti$plot")) {
1942: term_end_multiplot();
1943: c_token++;
1944: } else
1945: return(FALSE); /* no command match */
1946:
1947: return(TRUE);
1948: }
1949:
1950:
1951: /*********** Support functions for set_command ***********/
1952:
1953: /*
1954: * The set.c PROCESS_TIC_PROP macro has the following characteristics:
1955: * (a) options must in the correct order
1956: * (b) 'set xtics' (no option) resets only the interval (FREQ)
1957: * {it will also negate NO_TICS, see (d)}
1958: * (c) changing any property also resets the interval to automatic
1959: * (d) set no[xy]tics; set [xy]tics changes border to nomirror, rather
1960: * than to the default, mirror.
1961: * (e) effect of 'set no[]tics; set []tics border ...' is compiler
1962: * dependent; if '!(TICS)' is evaluated first, 'border' is an
1963: * undefined variable :-(
1964: *
1965: * This function replaces the macro, and introduces a new option
1966: * 'au$tofreq' to give somewhat different behaviour:
1967: * (a) no change
1968: * (b) 'set xtics' (no option) only affects NO_TICS; 'autofreq' resets
1969: * the interval calulation to automatic
1970: * (c) the interval mode is not affected by changing some other option
1971: * (d) if NO_TICS, set []tics will restore defaults (borders, mirror
1972: * where appropriate)
1973: * (e) if (NO_TICS), border option is processed.
1974: *
1975: * A 'default' option could easily be added to reset all options to
1976: * the initial values - mostly book-keeping.
1977: *
1978: * To retain tic properties after setting no[]tics may also be
1979: * straightforward (save value as negative), but requires changes
1980: * in other code ( e.g. for 'if (xtics)', use 'if (xtics > 0)'
1981: */
1982:
1983: static int set_tic_prop(TICS, MTICS, FREQ, tdef, AXIS, ROTATE, tic_side)
1984: /* generates PROCESS_TIC_PROP strings from tic_side, e.g. "x2"
1985: STRING, NOSTRING, MONTH, NOMONTH, DAY, NODAY, MINISTRING, NOMINI
1986: "nox2t$ics" "nox2m$tics" "nox2d$tics" "nomx2t$ics"
1987: */
1988:
1989: int *TICS, *MTICS, AXIS;
1990: double *FREQ;
1991: struct ticdef *tdef;
1992: TBOOLEAN *ROTATE;
1993: char *tic_side;
1994:
1995:
1996: {
1997: int match = 0; /* flag, set by matching a tic command */
1998: char nocmd[12]; /* fill w/ "no"+'tic_side'+suffix */
1999: char *cmdptr, *sfxptr;
2000:
2001: (void) strcpy(nocmd, "no");
2002: cmdptr = &nocmd[2];
2003: (void) strcpy(cmdptr, tic_side);
2004: sfxptr = &nocmd[strlen(nocmd)];
2005: (void) strcpy(sfxptr, "t$ics"); /* STRING */
2006:
2007: if (almost_equals(c_token, cmdptr)) {
2008: match = 1;
2009: if (almost_equals(++c_token, "ax$is")) {
2010: *TICS &= ~TICS_ON_BORDER;
2011: *TICS |= TICS_ON_AXIS;
2012: ++c_token;
2013: }
2014: /* if tics are off, reset to default (border) */
2015: if (*TICS == NO_TICS) {
2016: *TICS = TICS_ON_BORDER;
2017: if (!strcmp(tic_side, "x") || !strcmp(tic_side, "y")) {
2018: *TICS |= TICS_MIRROR;
2019: }
2020: }
2021: if (almost_equals(c_token, "bo$rder")) {
2022: *TICS &= ~TICS_ON_AXIS;
2023: *TICS |= TICS_ON_BORDER;
2024: ++c_token;
2025: }
2026: if (almost_equals(c_token, "mi$rror")) {
2027: *TICS |= TICS_MIRROR;
2028: ++c_token;
2029: } else if (almost_equals(c_token, "nomi$rror")) {
2030: *TICS &= ~TICS_MIRROR;
2031: ++c_token;
2032: }
2033: if (almost_equals(c_token, "ro$tate")) {
2034: *ROTATE = TRUE;
2035: ++c_token;
2036: } else if (almost_equals(c_token, "noro$tate")) {
2037: *ROTATE = FALSE;
2038: ++c_token;
2039: }
2040: if (almost_equals(c_token, "au$tofreq")) { /* auto tic interval */
2041: ++c_token;
2042: if (tdef->type == TIC_USER) {
2043: free_marklist(tdef->def.user);
2044: tdef->def.user = NULL;
2045: }
2046: tdef->type = TIC_COMPUTED;
2047: }
2048: /* user spec. is last */
2049: else if (!END_OF_COMMAND) {
2050: load_tics(AXIS, tdef);
2051: }
2052: }
2053: if (almost_equals(c_token, nocmd)) { /* NOSTRING */
2054: *TICS = NO_TICS;
2055: c_token++;
2056: match = 1;
2057: }
2058: /* other options */
2059:
2060: (void) strcpy(sfxptr, "m$tics"); /* MONTH */
2061: if (almost_equals(c_token, cmdptr)) {
2062: if (tdef->type == TIC_USER) {
2063: free_marklist(tdef->def.user);
2064: tdef->def.user = NULL;
2065: }
2066: tdef->type = TIC_MONTH;
2067: ++c_token;
2068: match = 1;
2069: }
2070: if (almost_equals(c_token, nocmd)) { /* NOMONTH */
2071: tdef->type = TIC_COMPUTED;
2072: ++c_token;
2073: match = 1;
2074: }
2075: (void) strcpy(sfxptr, "d$tics"); /* DAYS */
2076: if (almost_equals(c_token, cmdptr)) {
2077: match = 1;
2078: if (tdef->type == TIC_USER) {
2079: free_marklist(tdef->def.user);
2080: tdef->def.user = NULL;
2081: }
2082: tdef->type = TIC_DAY;
2083: ++c_token;
2084: }
2085: if (almost_equals(c_token, nocmd)) { /* NODAYS */
2086: tdef->type = TIC_COMPUTED;
2087: ++c_token;
2088: match = 1;
2089: }
2090: *cmdptr = 'm';
2091: (void) strcpy(cmdptr + 1, tic_side);
2092: (void) strcat(cmdptr, "t$ics"); /* MINISTRING */
2093:
2094: if (almost_equals(c_token, cmdptr)) {
2095: struct value freq;
2096: c_token++;
2097: match = 1;
2098: if (END_OF_COMMAND) {
2099: *MTICS = MINI_AUTO;
2100: } else if (almost_equals(c_token, "def$ault")) {
2101: *MTICS = MINI_DEFAULT;
2102: ++c_token;
2103: } else {
2104: *FREQ = real(const_express(&freq));
2105: *FREQ = floor(*FREQ);
2106: *MTICS = MINI_USER;
2107: }
2108: }
2109: if (almost_equals(c_token, nocmd)) { /* NOMINI */
2110: *MTICS = FALSE;
2111: c_token++;
2112: match = 1;
2113: }
2114: return (match);
2115: }
2116:
2117:
2118: /* process a 'set {x/y/z}label command */
2119: /* set {x/y/z}label {label_text} {x}{,y} */
2120: static void set_xyzlabel(label)
2121: label_struct *label;
2122: {
2123: c_token++;
2124: if (END_OF_COMMAND) { /* no label specified */
2125: *label->text = '\0';
2126: return;
2127: }
2128: if (isstring(c_token)) {
2129: /* We have string specified - grab it. */
2130: quote_str(label->text, c_token, MAX_LINE_LEN);
2131: c_token++;
2132: }
2133: if (END_OF_COMMAND)
2134: return;
2135:
2136: if (!almost_equals(c_token, "font") && !isstring(c_token)) {
2137: /* We have x,y offsets specified */
2138: struct value a;
2139: if (!equals(c_token, ","))
2140: label->xoffset = real(const_express(&a));
2141:
2142: if (END_OF_COMMAND)
2143: return;
2144:
2145: if (equals(c_token, ",")) {
2146: c_token++;
2147: label->yoffset = real(const_express(&a));
2148: }
2149: }
2150: if (END_OF_COMMAND)
2151: return;
2152:
2153: /* optional keyword 'font' can go here */
2154:
2155: if (almost_equals(c_token, "f$ont"))
2156: ++c_token; /* skip it */
2157:
2158: if (!isstring(c_token))
2159: int_error("Expected font", c_token);
2160:
2161: quote_str(label->font, c_token, MAX_LINE_LEN);
2162: c_token++;
2163: }
2164:
2165: /* process a 'set label' command */
2166: /* set label {tag} {label_text} {at x,y} {pos} {font name,size} */
2167: /* Entry font added by DJL */
2168: static void set_label()
2169: {
2170: struct value a;
2171: struct text_label *this_label = NULL;
2172: struct text_label *new_label = NULL;
2173: struct text_label *prev_label = NULL;
2174: struct position pos;
2175: char text[MAX_LINE_LEN + 1], font[MAX_LINE_LEN + 1];
2176: enum JUSTIFY just = LEFT;
2177: int rotate = 0;
2178: int tag;
2179: TBOOLEAN set_text, set_position, set_just = FALSE, set_rot = FALSE,
2180: set_font;
2181:
2182: /* get tag */
2183: if (!END_OF_COMMAND
2184: && !isstring(c_token)
2185: && !equals(c_token, "at")
2186: && !equals(c_token, "left")
2187: && !equals(c_token, "center")
2188: && !equals(c_token, "centre")
2189: && !equals(c_token, "right")
2190: && !almost_equals(c_token, "rot$ate")
2191: && !almost_equals(c_token, "norot$ate")
2192: && !equals(c_token, "font")) {
2193: /* must be a tag expression! */
2194: tag = (int) real(const_express(&a));
2195: if (tag <= 0)
2196: int_error("tag must be > zero", c_token);
2197: } else
2198: tag = assign_label_tag(); /* default next tag */
2199:
2200: /* get text */
2201: if (!END_OF_COMMAND && isstring(c_token)) {
2202: /* get text */
2203: quote_str(text, c_token, MAX_LINE_LEN);
2204: c_token++;
2205: set_text = TRUE;
2206: } else {
2207: text[0] = '\0'; /* default no text */
2208: set_text = FALSE;
2209: }
2210:
2211: /* get justification - what the heck, let him put it here */
2212: if (!END_OF_COMMAND && !equals(c_token, "at") && !equals(c_token, "font")
2213: && !almost_equals(c_token, "rot$ate") && !almost_equals(c_token, "norot$ate")) {
2214: if (almost_equals(c_token, "l$eft")) {
2215: just = LEFT;
2216: } else if (almost_equals(c_token, "c$entre")
2217: || almost_equals(c_token, "c$enter")) {
2218: just = CENTRE;
2219: } else if (almost_equals(c_token, "r$ight")) {
2220: just = RIGHT;
2221: } else
2222: int_error("bad syntax in set label", c_token);
2223: c_token++;
2224: set_just = TRUE;
2225: }
2226: /* get position */
2227: if (!END_OF_COMMAND && equals(c_token, "at")) {
2228: c_token++;
2229:
2230: get_position(&pos);
2231: set_position = TRUE;
2232: } else {
2233: pos.x = pos.y = pos.z = 0;
2234: pos.scalex = pos.scaley = pos.scalez = first_axes;
2235: set_position = FALSE;
2236: }
2237:
2238: /* get justification */
2239: if (!END_OF_COMMAND && !almost_equals(c_token, "rot$ate") && !almost_equals(c_token, "norot$ate") && !equals(c_token, "font")) {
2240: if (set_just)
2241: int_error("only one justification is allowed", c_token);
2242: if (almost_equals(c_token, "l$eft")) {
2243: just = LEFT;
2244: } else if (almost_equals(c_token, "c$entre")
2245: || almost_equals(c_token, "c$enter")) {
2246: just = CENTRE;
2247: } else if (almost_equals(c_token, "r$ight")) {
2248: just = RIGHT;
2249: } else
2250: int_error("bad syntax in set label", c_token);
2251:
2252: c_token++;
2253: set_just = TRUE;
2254: }
2255: /* get rotation (added by RCC) */
2256: if (!END_OF_COMMAND && !equals(c_token, "font")) {
2257: if (almost_equals(c_token, "rot$ate")) {
2258: rotate = TRUE;
2259: } else if (almost_equals(c_token, "norot$ate")) {
2260: rotate = FALSE;
2261: } else
2262: int_error("bad syntax in set label", c_token);
2263:
2264: c_token++;
2265: set_rot = TRUE;
2266: }
2267: /* get font */
2268: font[0] = NUL;
2269: set_font = FALSE;
2270: if (!END_OF_COMMAND && equals(c_token, "font")) {
2271: c_token++;
2272: if (END_OF_COMMAND)
2273: int_error("font name and size expected", c_token);
2274: if (isstring(c_token)) {
2275: quote_str(font, c_token, MAX_ID_LEN);
2276: /* get 'name,size', no further check */
2277: set_font = TRUE;
2278: } else
2279: int_error("'fontname,fontsize' expected", c_token);
2280:
2281: c_token++;
2282: } /* Entry font added by DJL */
2283: if (!END_OF_COMMAND)
2284: int_error("extraenous or out-of-order arguments in set label", c_token);
2285:
2286: /* OK! add label */
2287: if (first_label != NULL) { /* skip to last label */
2288: for (this_label = first_label; this_label != NULL;
2289: prev_label = this_label, this_label = this_label->next)
2290: /* is this the label we want? */
2291: if (tag <= this_label->tag)
2292: break;
2293: }
2294: if (this_label != NULL && tag == this_label->tag) {
2295: /* changing the label */
2296: if (set_position) {
2297: this_label->place = pos;
2298: }
2299: if (set_text)
2300: (void) strcpy(this_label->text, text);
2301: if (set_just)
2302: this_label->pos = just;
2303: if (set_rot)
2304: this_label->rotate = rotate;
2305: if (set_font)
2306: (void) strcpy(this_label->font, font);
2307: } else {
2308: /* adding the label */
2309: new_label = (struct text_label *)
2310: gp_alloc((unsigned long) sizeof(struct text_label), "label");
2311: if (prev_label != NULL)
2312: prev_label->next = new_label; /* add it to end of list */
2313: else
2314: first_label = new_label; /* make it start of list */
2315: new_label->tag = tag;
2316: new_label->next = this_label;
2317: new_label->place = pos;
2318: (void) strcpy(new_label->text, text);
2319: new_label->pos = just;
2320: new_label->rotate = rotate;
2321: (void) strcpy(new_label->font, font);
2322: }
2323: } /* Entry font added by DJL */
2324:
2325: /* process 'set nolabel' command */
2326: /* set nolabel {tag} */
2327: static void set_nolabel()
2328: {
2329: struct value a;
2330: struct text_label *this_label;
2331: struct text_label *prev_label;
2332: int tag;
2333:
2334: if (END_OF_COMMAND) {
2335: /* delete all labels */
2336: while (first_label != NULL)
2337: delete_label((struct text_label *) NULL, first_label);
2338: } else {
2339: /* get tag */
2340: tag = (int) real(const_express(&a));
2341: if (!END_OF_COMMAND)
2342: int_error("extraneous arguments to set nolabel", c_token);
2343: for (this_label = first_label, prev_label = NULL;
2344: this_label != NULL;
2345: prev_label = this_label, this_label = this_label->next) {
2346: if (this_label->tag == tag) {
2347: delete_label(prev_label, this_label);
2348: return; /* exit, our job is done */
2349: }
2350: }
2351: int_error("label not found", c_token);
2352: }
2353: }
2354:
2355: /* assign a new label tag */
2356: /* labels are kept sorted by tag number, so this is easy */
2357: static int /* the lowest unassigned tag number */ assign_label_tag()
2358: {
2359: struct text_label *this_label;
2360: int last = 0; /* previous tag value */
2361:
2362: for (this_label = first_label; this_label != NULL;
2363: this_label = this_label->next)
2364: if (this_label->tag == last + 1)
2365: last++;
2366: else
2367: break;
2368:
2369: return (last + 1);
2370: }
2371:
2372: /* delete label from linked list started by first_label.
2373: * called with pointers to the previous label (prev) and the
2374: * label to delete (this).
2375: * If there is no previous label (the label to delete is
2376: * first_label) then call with prev = NULL.
2377: */
2378: static void delete_label(prev, this)
2379: struct text_label *prev, *this;
2380: {
2381: if (this != NULL) { /* there really is something to delete */
2382: if (prev != NULL) /* there is a previous label */
2383: prev->next = this->next;
2384: else /* this = first_label so change first_label */
2385: first_label = this->next;
2386: free((char *) this);
2387: }
2388: }
2389:
2390:
2391: /* process a 'set arrow' command */
2392: /* set arrow {tag} {from x,y} {to x,y} {{no}head} */
2393: static void set_arrow()
2394: {
2395: struct value a;
2396: struct arrow_def *this_arrow = NULL;
2397: struct arrow_def *new_arrow = NULL;
2398: struct arrow_def *prev_arrow = NULL;
2399: struct position spos, epos;
2400: struct lp_style_type loc_lp;
2401: int axes = FIRST_AXES;
2402: int tag;
2403: TBOOLEAN set_start, set_end, head = 1, set_axes = 0, set_line = 0;
2404:
2405: /* Init struct lp_style_type loc_lp */
2406: reset_lp_properties (&loc_lp);
2407:
2408: /* get tag */
2409: if (!END_OF_COMMAND
2410: && !equals(c_token, "from")
2411: && !equals(c_token, "to")
2412: && !equals(c_token, "first")
2413: && !equals(c_token, "second")) {
2414: /* must be a tag expression! */
2415: tag = (int) real(const_express(&a));
2416: if (tag <= 0)
2417: int_error("tag must be > zero", c_token);
2418: } else
2419: tag = assign_arrow_tag(); /* default next tag */
2420:
2421: if (!END_OF_COMMAND && equals(c_token, "first")) {
2422: ++c_token;
2423: axes = FIRST_AXES;
2424: set_axes = 1;
2425: } else if (!END_OF_COMMAND && equals(c_token, "second")) {
2426: ++c_token;
2427: axes = SECOND_AXES;
2428: set_axes = 1;
2429: }
2430: /* get start position */
2431: if (!END_OF_COMMAND && equals(c_token, "from")) {
2432: c_token++;
2433: if (END_OF_COMMAND)
2434: int_error("start coordinates expected", c_token);
2435: /* get coordinates */
2436: get_position(&spos);
2437: set_start = TRUE;
2438: } else {
2439: spos.x = spos.y = spos.z = 0;
2440: spos.scalex = spos.scaley = spos.scalez = first_axes;
2441: set_start = FALSE;
2442: }
2443:
2444: /* get end position */
2445: if (!END_OF_COMMAND && equals(c_token, "to")) {
2446: c_token++;
2447: if (END_OF_COMMAND)
2448: int_error("end coordinates expected", c_token);
2449: /* get coordinates */
2450: get_position(&epos);
2451: set_end = TRUE;
2452: } else {
2453: epos.x = epos.y = epos.z = 0;
2454: epos.scalex = epos.scaley = epos.scalez = first_axes;
2455: set_end = FALSE;
2456: }
2457:
2458: /* get start position - what the heck, either order is ok */
2459: if (!END_OF_COMMAND && equals(c_token, "from")) {
2460: if (set_start)
2461: int_error("only one 'from' is allowed", c_token);
2462: c_token++;
2463: if (END_OF_COMMAND)
2464: int_error("start coordinates expected", c_token);
2465: /* get coordinates */
2466: get_position(&spos);
2467: set_start = TRUE;
2468: }
2469: if (!END_OF_COMMAND && equals(c_token, "nohead")) {
2470: c_token++;
2471: head = 0;
2472: }
2473: if (!END_OF_COMMAND && equals(c_token, "head")) {
2474: c_token++;
2475: head = 1;
2476: }
2477: set_line = 1;
2478:
2479: /* pick up a line spec - allow ls, but no point. */
2480: LP_PARSE(loc_lp, 1, 0, 0, 0);
2481: loc_lp.pointflag = 0; /* standard value for arrows, don't use points */
2482:
2483: if (!END_OF_COMMAND)
2484: int_error("extraneous or out-of-order arguments in set arrow", c_token);
2485:
2486: /* OK! add arrow */
2487: if (first_arrow != NULL) { /* skip to last arrow */
2488: for (this_arrow = first_arrow; this_arrow != NULL;
2489: prev_arrow = this_arrow, this_arrow = this_arrow->next)
2490: /* is this the arrow we want? */
2491: if (tag <= this_arrow->tag)
2492: break;
2493: }
2494: if (this_arrow != NULL && tag == this_arrow->tag) {
2495: /* changing the arrow */
2496: if (set_start) {
2497: this_arrow->start = spos;
2498: }
2499: if (set_end) {
2500: this_arrow->end = epos;
2501: }
2502: this_arrow->head = head;
2503: if (set_line) {
2504: this_arrow->lp_properties = loc_lp;
2505: }
2506: } else {
2507: /* adding the arrow */
2508: new_arrow = (struct arrow_def *)
2509: gp_alloc((unsigned long) sizeof(struct arrow_def), "arrow");
2510: if (prev_arrow != NULL)
2511: prev_arrow->next = new_arrow; /* add it to end of list */
2512: else
2513: first_arrow = new_arrow; /* make it start of list */
2514: new_arrow->tag = tag;
2515: new_arrow->next = this_arrow;
2516: new_arrow->start = spos;
2517: new_arrow->end = epos;
2518: new_arrow->head = head;
2519: new_arrow->lp_properties = loc_lp;
2520: }
2521: }
2522:
2523: /* process 'set noarrow' command */
2524: /* set noarrow {tag} */
2525: static void set_noarrow()
2526: {
2527: struct value a;
2528: struct arrow_def *this_arrow;
2529: struct arrow_def *prev_arrow;
2530: int tag;
2531:
2532: if (END_OF_COMMAND) {
2533: /* delete all arrows */
2534: while (first_arrow != NULL)
2535: delete_arrow((struct arrow_def *) NULL, first_arrow);
2536: } else {
2537: /* get tag */
2538: tag = (int) real(const_express(&a));
2539: if (!END_OF_COMMAND)
2540: int_error("extraneous arguments to set noarrow", c_token);
2541: for (this_arrow = first_arrow, prev_arrow = NULL;
2542: this_arrow != NULL;
2543: prev_arrow = this_arrow, this_arrow = this_arrow->next) {
2544: if (this_arrow->tag == tag) {
2545: delete_arrow(prev_arrow, this_arrow);
2546: return; /* exit, our job is done */
2547: }
2548: }
2549: int_error("arrow not found", c_token);
2550: }
2551: }
2552:
2553: /* assign a new arrow tag */
2554: /* arrows are kept sorted by tag number, so this is easy */
2555: static int /* the lowest unassigned tag number */ assign_arrow_tag()
2556: {
2557: struct arrow_def *this_arrow;
2558: int last = 0; /* previous tag value */
2559:
2560: for (this_arrow = first_arrow; this_arrow != NULL;
2561: this_arrow = this_arrow->next)
2562: if (this_arrow->tag == last + 1)
2563: last++;
2564: else
2565: break;
2566:
2567: return (last + 1);
2568: }
2569:
2570: /* delete arrow from linked list started by first_arrow.
2571: * called with pointers to the previous arrow (prev) and the
2572: * arrow to delete (this).
2573: * If there is no previous arrow (the arrow to delete is
2574: * first_arrow) then call with prev = NULL.
2575: */
2576: static void delete_arrow(prev, this)
2577: struct arrow_def *prev, *this;
2578: {
2579: if (this != NULL) { /* there really is something to delete */
2580: if (prev != NULL) /* there is a previous arrow */
2581: prev->next = this->next;
2582: else /* this = first_arrow so change first_arrow */
2583: first_arrow = this->next;
2584: free((char *) this);
2585: }
2586: }
2587:
2588: /* ======================================================== */
2589: /* process a 'set linestyle' command */
2590: /* set linestyle {tag} {linetype n} {linewidth x} {pointtype n} {pointsize x} */
2591: static void set_linestyle()
2592: {
2593: struct value a;
2594: struct linestyle_def *this_linestyle = NULL;
2595: struct linestyle_def *new_linestyle = NULL;
2596: struct linestyle_def *prev_linestyle = NULL;
2597: struct lp_style_type loc_lp;
2598: int tag;
2599:
2600: /* Init struct lp_style_type loc_lp */
2601: reset_lp_properties (&loc_lp);
2602:
2603: /* get tag */
2604: if (!END_OF_COMMAND) {
2605: /* must be a tag expression! */
2606: tag = (int) real(const_express(&a));
2607: if (tag <= 0)
2608: int_error("tag must be > zero", c_token);
2609: } else
2610: tag = assign_linestyle_tag(); /* default next tag */
2611:
2612: /* pick up a line spec : dont allow ls, do allow point type
2613: * default to same line type = point type = tag
2614: */
2615: LP_PARSE(loc_lp, 0, 1, tag - 1, tag - 1);
2616:
2617: if (!END_OF_COMMAND)
2618: int_error("extraneous or out-of-order arguments in set linestyle", c_token);
2619:
2620: /* OK! add linestyle */
2621: if (first_linestyle != NULL) { /* skip to last linestyle */
2622: for (this_linestyle = first_linestyle; this_linestyle != NULL;
2623: prev_linestyle = this_linestyle, this_linestyle = this_linestyle->next)
2624: /* is this the linestyle we want? */
2625: if (tag <= this_linestyle->tag)
2626: break;
2627: }
2628: if (this_linestyle != NULL && tag == this_linestyle->tag) {
2629: /* changing the linestyle */
2630: this_linestyle->lp_properties = loc_lp;
2631: } else {
2632: /* adding the linestyle */
2633: new_linestyle = (struct linestyle_def *)
2634: gp_alloc((unsigned long) sizeof(struct linestyle_def), "linestyle");
2635: if (prev_linestyle != NULL)
2636: prev_linestyle->next = new_linestyle; /* add it to end of list */
2637: else
2638: first_linestyle = new_linestyle; /* make it start of list */
2639: new_linestyle->tag = tag;
2640: new_linestyle->next = this_linestyle;
2641: new_linestyle->lp_properties = loc_lp;
2642: }
2643: }
2644:
2645: /* process 'set nolinestyle' command */
2646: /* set nolinestyle {tag} */
2647: static void set_nolinestyle()
2648: {
2649: struct value a;
2650: struct linestyle_def *this, *prev;
2651: int tag;
2652:
2653: if (END_OF_COMMAND) {
2654: /* delete all linestyles */
2655: while (first_linestyle != NULL)
2656: delete_linestyle((struct linestyle_def *) NULL, first_linestyle);
2657: } else {
2658: /* get tag */
2659: tag = (int) real(const_express(&a));
2660: if (!END_OF_COMMAND)
2661: int_error("extraneous arguments to set nolinestyle", c_token);
2662: for (this = first_linestyle, prev = NULL;
2663: this != NULL;
2664: prev = this, this = this->next) {
2665: if (this->tag == tag) {
2666: delete_linestyle(prev, this);
2667: return; /* exit, our job is done */
2668: }
2669: }
2670: int_error("linestyle not found", c_token);
2671: }
2672: }
2673:
2674: /* assign a new linestyle tag */
2675: /* linestyles are kept sorted by tag number, so this is easy */
2676: static int /* the lowest unassigned tag number */ assign_linestyle_tag()
2677: {
2678: struct linestyle_def *this;
2679: int last = 0; /* previous tag value */
2680:
2681: for (this = first_linestyle; this != NULL; this = this->next)
2682: if (this->tag == last + 1)
2683: last++;
2684: else
2685: break;
2686:
2687: return (last + 1);
2688: }
2689:
2690: /* delete linestyle from linked list started by first_linestyle.
2691: * called with pointers to the previous linestyle (prev) and the
2692: * linestyle to delete (this).
2693: * If there is no previous linestyle (the linestyle to delete is
2694: * first_linestyle) then call with prev = NULL.
2695: */
2696: static void delete_linestyle(prev, this)
2697: struct linestyle_def *prev, *this;
2698: {
2699: if (this != NULL) { /* there really is something to delete */
2700: if (prev != NULL) /* there is a previous linestyle */
2701: prev->next = this->next;
2702: else /* this = first_linestyle so change first_linestyle */
2703: first_linestyle = this->next;
2704: free((char *) this);
2705: }
2706: }
2707:
2708: /*
2709: * auxiliary functions for the `set linestyle` command
2710: */
2711:
2712: void lp_use_properties(lp, tag, pointflag)
2713: struct lp_style_type *lp;
2714: int tag, pointflag;
2715: {
2716: /* This function looks for a linestyle defined by 'tag' and copies
2717: * its data into the structure 'lp'.
2718: *
2719: * If 'pointflag' equals ZERO, the properties belong to a linestyle
2720: * used with arrows. In this case no point properties will be
2721: * passed to the terminal (cf. function 'term_apply_lp_properties' below).
2722: */
2723:
2724: struct linestyle_def *this;
2725:
2726: this = first_linestyle;
2727: while (this != NULL) {
2728: if (this->tag == tag) {
2729: *lp = this->lp_properties;
2730: lp->pointflag = pointflag;
2731: return;
2732: } else {
2733: this = this->next;
2734: }
2735: }
2736:
2737: /* tag not found: */
2738: int_error("linestyle not found", NO_CARET);
2739: }
2740:
2741: /* ======================================================== */
2742:
2743: enum PLOT_STYLE /* not static; used by command.c */ get_style()
2744: {
2745: register enum PLOT_STYLE ps = LINES; /* HBB: initial value, for 'gcc -W} */
2746:
2747: c_token++;
2748: if (almost_equals(c_token, "l$ines"))
2749: ps = LINES;
2750: else if (almost_equals(c_token, "i$mpulses"))
2751: ps = IMPULSES;
2752: else if (almost_equals(c_token, "p$oints"))
2753: ps = POINTSTYLE;
2754: else if (almost_equals(c_token, "linesp$oints") || equals(c_token, "lp"))
2755: ps = LINESPOINTS;
2756: else if (almost_equals(c_token, "d$ots"))
2757: ps = DOTS;
2758: else if (almost_equals(c_token, "ye$rrorbars"))
2759: ps = YERRORBARS;
2760: else if (almost_equals(c_token, "e$rrorbars"))
2761: ps = YERRORBARS;
2762: else if (almost_equals(c_token, "xe$rrorbars"))
2763: ps = XERRORBARS;
2764: else if (almost_equals(c_token, "xye$rrorbars"))
2765: ps = XYERRORBARS;
2766: else if (almost_equals(c_token, "boxes"))
2767: ps = BOXES;
2768: else if (almost_equals(c_token, "boxer$rorbars"))
2769: ps = BOXERROR;
2770: else if (almost_equals(c_token, "boxx$yerrorbars"))
2771: ps = BOXXYERROR;
2772: else if (almost_equals(c_token, "st$eps"))
2773: ps = STEPS;
2774: else if (almost_equals(c_token, "fs$teps"))
2775: ps = FSTEPS;
2776: else if (almost_equals(c_token, "his$teps"))
2777: ps = HISTEPS;
2778: else if (almost_equals(c_token, "vec$tor")) /* HBB: minor cosmetic change */
2779: ps = VECTOR;
2780: else if (almost_equals(c_token, "fin$ancebars"))
2781: ps = FINANCEBARS;
2782: else if (almost_equals(c_token, "can$dlesticks"))
2783: ps = CANDLESTICKS;
2784: else {
2785: int_error("expecting 'lines', 'points', 'linespoints', 'dots', 'impulses',\n\
2786: 'yerrorbars', 'xerrorbars', 'xyerrorbars', 'steps', 'fsteps', 'histeps',\n\
2787: 'boxes', 'boxerrorbars', 'boxxyerrorbars', 'vector', 'financebars', 'candlesticks'", c_token);
2788: return LINES; /* keep gcc -Wuninitialised happy */
2789: }
2790: c_token++;
2791: return (ps);
2792: }
2793:
2794: /* For set [xy]tics... command */
2795: static void load_tics(axis, tdef)
2796: int axis;
2797: struct ticdef *tdef; /* change this ticdef */
2798: {
2799: if (equals(c_token, "(")) { /* set : TIC_USER */
2800: c_token++;
2801: load_tic_user(axis, tdef);
2802: } else { /* series : TIC_SERIES */
2803: load_tic_series(axis, tdef);
2804: }
2805: }
2806:
2807: /* load TIC_USER definition */
2808: /* (tic[,tic]...)
2809: * where tic is ["string"] value
2810: * Left paren is already scanned off before entry.
2811: */
2812: static void load_tic_user(axis, tdef)
2813: int axis;
2814: struct ticdef *tdef;
2815: {
2816: struct ticmark *list = NULL; /* start of list */
2817: struct ticmark *last = NULL; /* end of list */
2818: struct ticmark *tic = NULL; /* new ticmark */
2819: char temp_string[MAX_LINE_LEN];
2820:
2821: while (!END_OF_COMMAND) {
2822: /* parse a new ticmark */
2823: tic = (struct ticmark *) gp_alloc((unsigned long) sizeof(struct ticmark), (char *) NULL);
2824: if (tic == (struct ticmark *) NULL) {
2825: free_marklist(list);
2826: int_error("out of memory for tic mark", c_token);
2827: }
2828: /* syntax is ( ['format'] value , ... )
2829: * but for timedata, the value itself is a string, which
2830: * complicates things somewhat
2831: */
2832:
2833: /* has a string with it? */
2834: if (isstring(c_token) &&
2835: (datatype[axis] != TIME || isstring(c_token + 1))) {
2836: quote_str(temp_string, c_token, MAX_LINE_LEN);
2837: tic->label = gp_alloc((unsigned long) strlen(temp_string) + 1, "tic label");
2838: (void) strcpy(tic->label, temp_string);
2839: c_token++;
2840: } else
2841: tic->label = NULL;
2842:
2843: /* in any case get the value */
2844: GET_NUM_OR_TIME(tic->position, axis);
2845: tic->next = NULL;
2846:
2847: /* append to list */
2848: if (list == NULL)
2849: last = list = tic; /* new list */
2850: else { /* append to list */
2851: last->next = tic;
2852: last = tic;
2853: }
2854:
2855: /* expect "," or ")" here */
2856: if (!END_OF_COMMAND && equals(c_token, ","))
2857: c_token++; /* loop again */
2858: else
2859: break; /* hopefully ")" */
2860: }
2861:
2862: if (END_OF_COMMAND || !equals(c_token, ")")) {
2863: free_marklist(list);
2864: int_error("expecting right parenthesis )", c_token);
2865: }
2866: c_token++;
2867:
2868: /* successful list */
2869: if (tdef->type == TIC_USER) {
2870: /* remove old list */
2871: /* VAX Optimiser was stuffing up following line. Turn Optimiser OFF */
2872: free_marklist(tdef->def.user);
2873: tdef->def.user = NULL;
2874: }
2875: tdef->type = TIC_USER;
2876: tdef->def.user = list;
2877: }
2878:
2879: static void free_marklist(list)
2880: struct ticmark *list;
2881: {
2882: register struct ticmark *freeable;
2883:
2884: while (list != NULL) {
2885: freeable = list;
2886: list = list->next;
2887: if (freeable->label != NULL)
2888: free((char *) freeable->label);
2889: free((char *) freeable);
2890: }
2891: }
2892:
2893: /* load TIC_SERIES definition */
2894: /* [start,]incr[,end] */
2895: static void load_tic_series(axis, tdef)
2896: int axis;
2897: struct ticdef *tdef;
2898: {
2899: double start, incr, end;
2900: int incr_token;
2901:
2902: GET_NUM_OR_TIME(start, axis);
2903:
2904: if (!equals(c_token, ",")) {
2905: /* only step specified */
2906: incr = start;
2907: start = -VERYLARGE;
2908: end = VERYLARGE;
2909: } else {
2910:
2911: c_token++;
2912:
2913: incr_token = c_token;
2914: GET_NUM_OR_TIME(incr, axis);
2915:
2916: if (END_OF_COMMAND)
2917: end = VERYLARGE;
2918: else {
2919: if (!equals(c_token, ","))
2920: int_error("expecting comma to separate incr,end", c_token);
2921: c_token++;
2922: GET_NUM_OR_TIME(end, axis);
2923: }
2924: if (!END_OF_COMMAND)
2925: int_error("tic series is defined by [start,]increment[,end]", c_token);
2926:
2927: if (start < end && incr <= 0)
2928: int_error("increment must be positive", incr_token);
2929: if (start > end && incr >= 0)
2930: int_error("increment must be negative", incr_token);
2931: if (start > end) {
2932: /* put in order */
2933: double numtics;
2934: numtics = floor((end * (1 + SIGNIF) - start) / incr);
2935: end = start;
2936: start = end + numtics * incr;
2937: incr = -incr;
2938: /*
2939: double temp = start;
2940: start = end;
2941: end = temp;
2942: incr = -incr;
2943: */
2944: }
2945: }
2946:
2947: if (tdef->type == TIC_USER) {
2948: /* remove old list */
2949: /* VAX Optimiser was stuffing up following line. Turn Optimiser OFF */
2950: free_marklist(tdef->def.user);
2951: tdef->def.user = NULL;
2952: }
2953: tdef->type = TIC_SERIES;
2954: tdef->def.series.start = start;
2955: tdef->def.series.incr = incr;
2956: tdef->def.series.end = end;
2957: }
2958:
2959: static void load_offsets(a, b, c, d)
2960: double *a, *b, *c, *d;
2961: {
2962: struct value t;
2963:
2964: *a = real(const_express(&t)); /* loff value */
2965: if (!equals(c_token, ","))
2966: return;
2967:
2968: c_token++;
2969: *b = real(const_express(&t)); /* roff value */
2970: if (!equals(c_token, ","))
2971: return;
2972:
2973: c_token++;
2974: *c = real(const_express(&t)); /* toff value */
2975: if (!equals(c_token, ","))
2976: return;
2977:
2978: c_token++;
2979: *d = real(const_express(&t)); /* boff value */
2980: }
2981:
2982: TBOOLEAN /* new value for autosc */
2983: load_range(axis, a, b, autosc) /* also used by command.c */
2984: int axis;
2985: double *a, *b;
2986: TBOOLEAN autosc;
2987: {
2988: if (equals(c_token, "]"))
2989: return (autosc);
2990: if (END_OF_COMMAND) {
2991: int_error("starting range value or ':' or 'to' expected", c_token);
2992: } else if (!equals(c_token, "to") && !equals(c_token, ":")) {
2993: if (equals(c_token, "*")) {
2994: autosc |= 1;
2995: c_token++;
2996: } else {
2997: GET_NUM_OR_TIME(*a, axis);
2998: autosc &= 2;
2999: }
3000: }
3001: if (!equals(c_token, "to") && !equals(c_token, ":"))
3002: int_error("':' or keyword 'to' expected", c_token);
3003: c_token++;
3004: if (!equals(c_token, "]")) {
3005: if (equals(c_token, "*")) {
3006: autosc |= 2;
3007: c_token++;
3008: } else {
3009: GET_NUM_OR_TIME(*b, axis);
3010: autosc &= 1;
3011: }
3012: }
3013: return (autosc);
3014: }
3015:
3016: /* return 1 if format looks like a numeric format
3017: * ie more than one %{efg}, or %something-else
3018: */
3019:
3020: static int looks_like_numeric(format)
3021: char *format;
3022: {
3023: if (!(format = strchr(format, '%')))
3024: return 0;
3025:
3026: while (++format, (*format >= '0' && *format <= '9') || *format == '.');
3027:
3028: return (*format == 'f' || *format == 'g' || *format == 'e');
3029: }
3030:
3031:
3032: /* parse a position of the form
3033: * [coords] x, [coords] y {,[coords] z}
3034: * where coords is one of first,second.graph,screen
3035: * if first or second, we need to take datatype into account
3036: * mixed co-ordinates are for specialists, but it's not particularly
3037: * hard to implement...
3038: */
3039:
3040: #define GET_NUMBER_OR_TIME(store,axes,axis) \
3041: do{if (axes >= 0 && datatype[axes+axis] == TIME && isstring(c_token) ) { \
3042: char ss[80]; struct tm tm; \
3043: quote_str(ss,c_token, 80); ++c_token; \
3044: if (gstrptime(ss,timefmt,&tm)) store = (double) gtimegm(&tm); \
3045: } else {\
3046: struct value value; \
3047: store = real(const_express(&value));\
3048: }}while(0)
3049:
3050:
3051: /* get_position_type - for use by get_position().
3052: * parses first/second/graph/screen keyword
3053: */
3054:
3055: static void get_position_type(type, axes)
3056: enum position_type *type;
3057: int *axes;
3058: {
3059: if (almost_equals(c_token, "fir$st")) {
3060: ++c_token;
3061: *type = first_axes;
3062: } else if (almost_equals(c_token, "sec$ond")) {
3063: ++c_token;
3064: *type = second_axes;
3065: } else if (almost_equals(c_token, "gr$aph")) {
3066: ++c_token;
3067: *type = graph;
3068: } else if (almost_equals(c_token, "sc$reen")) {
3069: ++c_token;
3070: *type = screen;
3071: }
3072: switch (*type) {
3073: case first_axes:
3074: *axes = FIRST_AXES;
3075: return;
3076: case second_axes:
3077: *axes = SECOND_AXES;
3078: return;
3079: default:
3080: *axes = (-1);
3081: return;
3082: }
3083: }
3084:
3085: /* get_position() - reads a position for label,arrow,key,... */
3086:
3087: static void get_position(pos)
3088: struct position *pos;
3089: {
3090: int axes;
3091: enum position_type type = first_axes;
3092:
3093: get_position_type(&type, &axes);
3094: pos->scalex = type;
3095: GET_NUMBER_OR_TIME(pos->x, axes, FIRST_X_AXIS);
3096: if (!equals(c_token, ","))
3097: int_error("Expected comma", c_token);
3098: ++c_token;
3099: get_position_type(&type, &axes);
3100: pos->scaley = type;
3101: GET_NUMBER_OR_TIME(pos->y, axes, FIRST_Y_AXIS);
3102:
3103: /* z is not really allowed for a screen co-ordinate, but keep it simple ! */
3104: if (equals(c_token, ",")) {
3105: ++c_token;
3106: get_position_type(&type, &axes);
3107: pos->scalez = type;
3108: GET_NUMBER_OR_TIME(pos->z, axes, FIRST_Z_AXIS);
3109: } else {
3110: pos->z = 0;
3111: pos->scalez = type; /* same as y */
3112: }
3113: }
3114:
3115: static void set_lp_properties(arg, allow_points, lt, pt, lw, ps)
3116: struct lp_style_type *arg;
3117: int allow_points, lt, pt;
3118: double lw, ps;
3119: {
3120: arg->pointflag = allow_points;
3121: arg->l_type = lt;
3122: arg->p_type = pt;
3123: arg->l_width = lw;
3124: arg->p_size = ps;
3125: }
3126:
3127: static void reset_lp_properties(arg)
3128: struct lp_style_type *arg;
3129: {
3130: /* See plot.h for struct lp_style_type */
3131: arg->pointflag = arg->l_type = arg->p_type = 0;
3132: arg->l_width = arg->p_size = 1.0;
3133: }
3134:
3135: static void set_locale(lcl)
3136: char *lcl;
3137: {
3138: #ifndef NO_LOCALE_H
3139: int i;
3140: struct tm tm;
3141:
3142: if (setlocale(LC_TIME, lcl))
3143: safe_strncpy(cur_locale, lcl, sizeof(cur_locale));
3144: else
3145: int_error("Locale not available", c_token);
3146:
3147: /* we can do a *lot* better than this ; eg use system functions
3148: * where available; create values on first use, etc
3149: */
3150: memset(&tm, 0, sizeof(struct tm));
3151: for (i = 0; i < 7; ++i) {
3152: tm.tm_wday = i; /* hope this enough */
3153: strftime(full_day_names[i], sizeof(full_day_names[i]), "%A", &tm);
3154: strftime(abbrev_day_names[i], sizeof(abbrev_day_names[i]), "%a", &tm);
3155: }
3156: for (i = 0; i < 12; ++i) {
3157: tm.tm_mon = i; /* hope this enough */
3158: strftime(full_month_names[i], sizeof(full_month_names[i]), "%B", &tm);
3159: strftime(abbrev_month_names[i], sizeof(abbrev_month_names[i]), "%b", &tm);
3160: }
3161: #else
3162: safe_strncpy(cur_locale, lcl, sizeof(cur_locale));
3163: #endif /* NO_LOCALE_H */
3164: }
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