Annotation of OpenXM_contrib/gnuplot/plot.h, Revision 1.1.1.1
1.1 maekawa 1: /*
2: * $Id: plot.h,v 1.120 1998/04/14 00:16:06 drd Exp $
3: *
4: */
5:
6: /* GNUPLOT - plot.h */
7:
8: /*[
9: * Copyright 1986 - 1993, 1998 Thomas Williams, Colin Kelley
10: *
11: * Permission to use, copy, and distribute this software and its
12: * documentation for any purpose with or without fee is hereby granted,
13: * provided that the above copyright notice appear in all copies and
14: * that both that copyright notice and this permission notice appear
15: * in supporting documentation.
16: *
17: * Permission to modify the software is granted, but not the right to
18: * distribute the complete modified source code. Modifications are to
19: * be distributed as patches to the released version. Permission to
20: * distribute binaries produced by compiling modified sources is granted,
21: * provided you
22: * 1. distribute the corresponding source modifications from the
23: * released version in the form of a patch file along with the binaries,
24: * 2. add special version identification to distinguish your version
25: * in addition to the base release version number,
26: * 3. provide your name and address as the primary contact for the
27: * support of your modified version, and
28: * 4. retain our contact information in regard to use of the base
29: * software.
30: * Permission to distribute the released version of the source code along
31: * with corresponding source modifications in the form of a patch file is
32: * granted with same provisions 2 through 4 for binary distributions.
33: *
34: * This software is provided "as is" without express or implied warranty
35: * to the extent permitted by applicable law.
36: ]*/
37:
38: /* avoid multiple includes */
39: #ifndef PLOT_H
40: #define PLOT_H
41:
42: #ifdef HAVE_CONFIG_H
43: # include "config.h"
44: #endif
45:
46: #include "ansichek.h"
47: /* syscfg.h is included by stdfn.h */
48: #include "stdfn.h"
49:
50: #define PROGRAM "G N U P L O T"
51: #define PROMPT "gnuplot> "
52:
53: /* The part for OS dependent defines
54: * has been moved to a new file.
55: */
56:
57: #define SAMPLES 100 /* default number of samples for a plot */
58: #define ISO_SAMPLES 10 /* default number of isolines per splot */
59: #define ZERO 1e-8 /* default for 'zero' set option */
60:
61: #ifndef TERM
62: /* default terminal is "unknown"; but see init_terminal */
63: # define TERM "unknown"
64: #endif
65:
66: /* avoid precompiled header conflict with redefinition */
67: #ifdef NEXT
68: # include <mach/boolean.h>
69: #else
70: /* Sheer, raging paranoia */
71: # ifdef TRUE
72: # undef TRUE
73: # endif
74: # ifdef FALSE
75: # undef FALSE
76: # endif
77: # define TRUE 1
78: # define FALSE 0
79: #endif
80: /* TRUE or FALSE */
81: typedef int TBOOLEAN;
82:
83: /* double true, used in autoscale: 1=autoscale ?min, 2=autoscale ?max */
84: #define DTRUE 3
85:
86: #define Pi 3.141592653589793
87: #define DEG2RAD (Pi / 180.0)
88:
89:
90: /* minimum size of points[] in curve_points */
91: #define MIN_CRV_POINTS 100
92: /* minimum size of points[] in surface_points */
93: #define MIN_SRF_POINTS 1000
94:
95:
96: /* Minimum number of chars to represent an integer */
97: #define INT_STR_LEN (3*sizeof(int))
98:
99: /* note that MAX_LINE_LEN, MAX_TOKENS and MAX_AT_LEN do no longer limit the
100: size of the input. The values describe the steps in which the sizes are
101: extended. */
102:
103: #define MAX_LINE_LEN 1024 /* maximum number of chars allowed on line */
104: #define MAX_TOKENS 400
105: #define MAX_ID_LEN 50 /* max length of an identifier */
106:
107:
108: #define MAX_AT_LEN 150 /* max number of entries in action table */
109: #define STACK_DEPTH 100
110: #define NO_CARET (-1)
111:
112: #ifdef DOS16
113: # define MAX_NUM_VAR 3 /* Plotting projection of func. of max. five vars. */
114: #else /* not DOS16 */
115: # define MAX_NUM_VAR 5 /* Plotting projection of func. of max. five vars. */
116: #endif /* not DOS16 */
117:
118: #define MAP3D_CARTESIAN 0 /* 3D Data mapping. */
119: #define MAP3D_SPHERICAL 1
120: #define MAP3D_CYLINDRICAL 2
121:
122: #define CONTOUR_NONE 0 /* Where to place contour maps if at all. */
123: #define CONTOUR_BASE 1
124: #define CONTOUR_SRF 2
125: #define CONTOUR_BOTH 3
126:
127: #define CONTOUR_KIND_LINEAR 0
128: #define CONTOUR_KIND_CUBIC_SPL 1
129: #define CONTOUR_KIND_BSPLINE 2
130:
131: #define LEVELS_AUTO 0 /* How contour levels are set */
132: #define LEVELS_INCREMENTAL 1 /* user specified start & incremnet */
133: #define LEVELS_DISCRETE 2 /* user specified discrete levels */
134: #define MAX_DISCRETE_LEVELS 30
135:
136: #define ANGLES_RADIANS 0
137: #define ANGLES_DEGREES 1
138:
139: #define NO_TICS 0
140: #define TICS_ON_BORDER 1
141: #define TICS_ON_AXIS 2
142: #define TICS_MASK 3
143: #define TICS_MIRROR 4
144:
145: /* give some names to some array elements used in command.c and grap*.c
146: * maybe one day the relevant items in setshow will also be stored
147: * in arrays
148: */
149:
150: /* SECOND_X_AXIS = FIRST_X_AXIS + SECOND_AXES
151: * FIRST_X_AXIS & SECOND_AXES == 0
152: */
153: #define FIRST_AXES 0
154: #define SECOND_AXES 4
155:
156: #define FIRST_Z_AXIS 0
157: #define FIRST_Y_AXIS 1
158: #define FIRST_X_AXIS 2
159: #define SECOND_Z_AXIS 4 /* for future expansion ;-) */
160: #define SECOND_Y_AXIS 5
161: #define SECOND_X_AXIS 6
162: /* extend list for datatype[] for t,u,v,r though IMHO
163: * they are not relevant to time data [being parametric dummies]
164: */
165: #define T_AXIS 3 /* fill gap */
166: #define R_AXIS 7 /* never used ? */
167: #define U_AXIS 8
168: #define V_AXIS 9
169:
170: #define AXIS_ARRAY_SIZE 10
171: #define DATATYPE_ARRAY_SIZE 10
172:
173: /* values for range_flags[] */
174: #define RANGE_WRITEBACK 1 /* write auto-ed ranges back to variables for autoscale */
175: #define RANGE_REVERSE 2 /* allow auto and reversed ranges */
176:
177: /* we want two auto modes for minitics - default where minitics
178: * are auto for log/time and off for linear, and auto where
179: * auto for all graphs
180: * I've done them in this order so that logscale-mode can simply
181: * test bit 0 to see if it must do the minitics automatically.
182: * similarly, conventional plot can test bit 1 to see if minitics are
183: * required
184: */
185: #define MINI_OFF 0
186: #define MINI_DEFAULT 1
187: #define MINI_AUTO 3
188: #define MINI_USER 2
189:
190:
191: /* Need to allow user to choose grid at first and/or second axes tics.
192: * Also want to let user choose circles at x or y tics for polar grid.
193: * Also want to allow user rectangular grid for polar plot or polar
194: * grid for parametric plot. So just go for full configurability.
195: * These are bitmasks
196: */
197: #define GRID_OFF 0
198: #define GRID_X 1
199: #define GRID_Y 2
200: #define GRID_Z 4
201: #define GRID_X2 8
202: #define GRID_Y2 16
203: #define GRID_MX 32
204: #define GRID_MY 64
205: #define GRID_MZ 128
206: #define GRID_MX2 256
207: #define GRID_MY2 512
208:
209: /* To access curves larger than 64k, MSDOS needs to use huge pointers */
210: #if (defined(__TURBOC__) && defined(MSDOS)) || defined(WIN16)
211: # define GPHUGE huge
212: # define GPFAR far
213: #else /* not TurboC || WIN16 */
214: # define GPHUGE /* nothing */
215: # define GPFAR /* nothing */
216: #endif /* not TurboC || WIN16 */
217:
218: #if defined(DOS16) || defined(WIN16)
219: typedef float coordval; /* memory is tight on PCs! */
220: # define COORDVAL_FLOAT 1
221: #else
222: typedef double coordval;
223: #endif
224:
225: /*
226: * Note about VERYLARGE: This is the upper bound double (or float, if PC)
227: * numbers. This flag indicates very large numbers. It doesn't have to
228: * be the absolutely biggest number on the machine.
229: * If your machine doesn't have HUGE, or float.h,
230: * define VERYLARGE here.
231: *
232: * example:
233: #define VERYLARGE 1e37
234: *
235: * To get an appropriate value for VERYLARGE, we can use DBL_MAX (or
236: * FLT_MAX on PCs), HUGE or HUGE_VAL. DBL_MAX is usually defined in
237: * float.h and is the largest possible double value. HUGE and HUGE_VAL
238: * are either DBL_MAX or +Inf (IEEE special number), depending on the
239: * compiler. +Inf may cause problems with some buggy fp
240: * implementations, so we better avoid that. The following should work
241: * better than the previous setup (which used HUGE in preference to
242: * DBL_MAX).
243: */
244:
245: /* both min/max and MIN/MAX are defined by some compilers.
246: * we are now on GPMIN / GPMAX
247: */
248:
249: #define GPMAX(a,b) ( (a) > (b) ? (a) : (b) )
250: #define GPMIN(a,b) ( (a) < (b) ? (a) : (b) )
251:
252: /* Moved from binary.h, command.c, graph3d.c, graphics.c, interpol.c,
253: * plot2d.c, plot3d.c, util3d.c ...
254: */
255: #ifndef inrange
256: # define inrange(z,min,max) \
257: (((min)<(max)) ? (((z)>=(min)) && ((z)<=(max))) : \
258: (((z)>=(max)) && ((z)<=(min))))
259: #endif
260:
261: /* There is a bug in the NEXT OS. This is a workaround. Lookout for
262: * an OS correction to cancel the following dinosaur
263: *
264: * Hm, at least with my setup (compiler version 3.1, system 3.3p1),
265: * DBL_MAX is defined correctly and HUGE and HUGE_VAL are both defined
266: * as 1e999. I have no idea to which OS version the bugfix below
267: * applies, at least wrt. HUGE, it is inconsistent with the current
268: * version. Since we are using DBL_MAX anyway, most of this isn't
269: * really needed anymore.
270: */
271:
272: #if defined ( NEXT ) && NX_CURRENT_COMPILER_RELEASE<310
273: # if defined ( DBL_MAX)
274: # undef DBL_MAX
275: # endif
276: # define DBL_MAX 1.7976931348623157e+308
277: # undef HUGE
278: # define HUGE DBL_MAX
279: # undef HUGE_VAL
280: # define HUGE_VAL DBL_MAX
281: #endif /* NEXT && NX_CURRENT_COMPILER_RELEASE<310 */
282:
283: /* Now define VERYLARGE. This is usually DBL_MAX/2 - 1. On MS-DOS however
284: * we use floats for memory considerations and thus use FLT_MAX.
285: */
286:
287: #ifndef COORDVAL_FLOAT
288: # ifdef DBL_MAX
289: # define VERYLARGE (DBL_MAX/2-1)
290: # endif
291: #else /* COORDVAL_FLOAT */
292: # ifdef FLT_MAX
293: # define VERYLARGE (FLT_MAX/2-1)
294: # endif
295: #endif /* COORDVAL_FLOAT */
296:
297: #ifndef VERYLARGE
298: # ifdef HUGE
299: # define VERYLARGE (HUGE/2-1)
300: # elif defined(HUGE_VAL)
301: # define VERYLARGE (HUGE_VAL/2-1)
302: # else
303: /* as a last resort */
304: # define VERYLARGE (1e37)
305: # warning "using last resort 1e37 as VERYLARGE define, please check your headers"
306: # endif /* HUGE */
307: #endif /* VERYLARGE */
308:
309: /* Some older platforms, namely SunOS 4.x, don't define this. */
310: #ifndef DBL_EPSILON
311: # define DBL_EPSILON 2.2204460492503131E-16
312: #endif
313:
314: /* The XOPEN ln(10) macro */
315: #ifndef M_LN10
316: # define M_LN10 2.3025850929940456840e0
317: #endif
318:
319: /* argument: char *fn */
320: #define VALID_FILENAME(fn) ((fn) != NULL && (*fn) != '\0')
321:
322: #define END_OF_COMMAND (c_token >= num_tokens || equals(c_token,";"))
323: #define is_EOF(c) ((c) == 'e' || (c) == 'E')
324:
325: #ifdef VMS
326: # define is_comment(c) ((c) == '#' || (c) == '!')
327: # define is_system(c) ((c) == '$')
328: /* maybe configure could check this? */
329: # define BACKUP_FILESYSTEM 1
330: #else /* not VMS */
331: # define is_comment(c) ((c) == '#')
332: # define is_system(c) ((c) == '!')
333: #endif /* not VMS */
334:
335: #define top_of_stack stack[s_p]
336:
337: #ifndef RETSIGTYPE
338: /* assume ANSI definition by default */
339: # define RETSIGTYPE void
340: #endif
341:
342: #ifndef SIGFUNC_NO_INT_ARG
343: typedef RETSIGTYPE (*sigfunc)__PROTO((int));
344: #else
345: typedef RETSIGTYPE (*sigfunc)__PROTO((void));
346: #endif
347:
348: #ifndef SORTFUNC_ARGS
349: typedef int (*sortfunc) __PROTO((const generic *, const generic *));
350: #else
351: typedef int (*sortfunc) __PROTO((SORTFUNC_ARGS, SORTFUNC_ARGS));
352: #endif
353:
354: enum operators {
355: /* keep this in line with table in plot.c */
356: PUSH, PUSHC, PUSHD1, PUSHD2, PUSHD, CALL, CALLN, LNOT, BNOT, UMINUS,
357: LOR, LAND, BOR, XOR, BAND, EQ, NE, GT, LT, GE, LE, PLUS, MINUS, MULT,
358: DIV, MOD, POWER, FACTORIAL, BOOLE,
359: DOLLARS, /* for using extension - div */
360: /* only jump operators go between jump and sf_start */
361: JUMP, JUMPZ, JUMPNZ, JTERN, SF_START
362: };
363:
364:
365: #define is_jump(operator) ((operator) >=(int)JUMP && (operator) <(int)SF_START)
366:
367:
368: enum DATA_TYPES {
369: INTGR, CMPLX
370: };
371:
372: #define TIME 3
373:
374: enum PLOT_TYPE {
375: FUNC, DATA, FUNC3D, DATA3D
376: };
377:
378: /* we explicitly assign values to the types, such that we can
379: * perform bit tests to see if the style involves points and/or lines
380: * bit 0 (val 1) = line, bit 1 (val 2) = point, bit 2 (val 4)= error
381: * This allows rapid decisions about the sample drawn into the key,
382: * for example.
383: */
384: enum PLOT_STYLE {
385: LINES = 0*8 + 1,
386: POINTSTYLE = 1*8 + 2,
387: IMPULSES = 2*8 + 1,
388: LINESPOINTS= 3*8 + 3,
389: DOTS = 4*8 + 0,
390: XERRORBARS = 5*8 + 6,
391: YERRORBARS = 6*8 + 6,
392: XYERRORBARS= 7*8 + 6,
393: BOXXYERROR = 8*8 + 1,
394: BOXES = 9*8 + 1,
395: BOXERROR =10*8 + 1,
396: STEPS =11*8 + 1,
397: FSTEPS =12*8 + 1,
398: HISTEPS =13*8 + 1,
399: VECTOR =14*8 + 1,
400: CANDLESTICKS=15*8 + 4,
401: FINANCEBARS=16*8 + 1
402: };
403:
404: enum PLOT_SMOOTH {
405: NONE, UNIQUE, CSPLINES, ACSPLINES, BEZIER, SBEZIER
406:
407: };
408:
409: /* this order means we can use x-(just*strlen(text)*t->h_char)/2 if
410: * term cannot justify
411: */
412: enum JUSTIFY {
413: LEFT, CENTRE, RIGHT
414: };
415:
416: /* we use a similar trick for vertical justification of multi-line labels */
417: #define JUST_TOP 0
418: #define JUST_CENTRE 1
419: #define JUST_BOT 2
420:
421: #if !(defined(ATARI)&&defined(__GNUC__)&&defined(_MATH_H)) && !(defined(MTOS)&&defined(__GNUC__)&&defined(_MATH_H)) /* FF's math.h has the type already */
422: struct cmplx {
423: double real, imag;
424: };
425: #endif
426:
427:
428: struct value {
429: enum DATA_TYPES type;
430: union {
431: int int_val;
432: struct cmplx cmplx_val;
433: } v;
434: };
435:
436:
437: struct lexical_unit { /* produced by scanner */
438: TBOOLEAN is_token; /* true if token, false if a value */
439: struct value l_val;
440: int start_index; /* index of first char in token */
441: int length; /* length of token in chars */
442: };
443:
444:
445: struct udft_entry { /* user-defined function table entry */
446: struct udft_entry *next_udf; /* pointer to next udf in linked list */
447: char udf_name[MAX_ID_LEN+1]; /* name of this function entry */
448: struct at_type *at; /* pointer to action table to execute */
449: char *definition; /* definition of function as typed */
450: struct value dummy_values[MAX_NUM_VAR]; /* current value of dummy variables */
451: };
452:
453:
454: struct udvt_entry { /* user-defined value table entry */
455: struct udvt_entry *next_udv; /* pointer to next value in linked list */
456: char udv_name[MAX_ID_LEN+1]; /* name of this value entry */
457: TBOOLEAN udv_undef; /* true if not defined yet */
458: struct value udv_value; /* value it has */
459: };
460:
461:
462: union argument { /* p-code argument */
463: int j_arg; /* offset for jump */
464: struct value v_arg; /* constant value */
465: struct udvt_entry *udv_arg; /* pointer to dummy variable */
466: struct udft_entry *udf_arg; /* pointer to udf to execute */
467: };
468:
469:
470: struct at_entry { /* action table entry */
471: enum operators index; /* index of p-code function */
472: union argument arg;
473: };
474:
475:
476: struct at_type {
477: int a_count; /* count of entries in .actions[] */
478: struct at_entry actions[MAX_AT_LEN];
479: /* will usually be less than MAX_AT_LEN is malloc()'d copy */
480: };
481:
482:
483: /* This type definition has to come after union argument has been declared. */
484: #ifdef __ZTC__
485: typedef int (*FUNC_PTR)(...);
486: #else
487: typedef int (*FUNC_PTR) __PROTO((union argument *arg));
488: #endif
489:
490: struct ft_entry { /* standard/internal function table entry */
491: char *f_name; /* pointer to name of this function */
492: FUNC_PTR func; /* address of function to call */
493: };
494:
495:
496: /* Defines the type of a coordinate */
497: /* INRANGE and OUTRANGE points have an x,y point associated with them */
498: enum coord_type {
499: INRANGE, /* inside plot boundary */
500: OUTRANGE, /* outside plot boundary, but defined */
501: UNDEFINED /* not defined at all */
502: };
503:
504:
505: struct coordinate {
506: enum coord_type type; /* see above */
507: coordval x, y, z;
508: coordval ylow, yhigh; /* ignored in 3d */
509: coordval xlow, xhigh; /* also ignored in 3d */
510: #if defined(WIN16) || (defined(MSDOS) && defined(__TURBOC__))
511: char pad[2]; /* pad to 32 byte boundary */
512: #endif
513: };
514:
515: struct lp_style_type { /* contains all Line and Point properties */
516: int pointflag; /* 0 if points not used, otherwise 1 */
517: int l_type,
518: p_type;
519: double l_width,
520: p_size;
521: /* more to come ? */
522: };
523:
524: /* Now unused; replaced with set.c(reset_lp_properties) */
525: /* default values for the structure 'lp_style_type' */
526: /* #define LP_DEFAULT {0,0,0,1.0,1.0} */
527:
528:
529: struct curve_points {
530: struct curve_points *next_cp; /* pointer to next plot in linked list */
531: int token; /* last token in re/plot line, for second pass */
532: enum PLOT_TYPE plot_type;
533: enum PLOT_STYLE plot_style;
534: enum PLOT_SMOOTH plot_smooth;
535: char *title;
536: struct lp_style_type lp_properties;
537: int p_max; /* how many points are allocated */
538: int p_count; /* count of points in points */
539: int x_axis; /* FIRST_X_AXIS or SECOND_X_AXIS */
540: int y_axis; /* FIRST_Y_AXIS or SECOND_Y_AXIS */
541: struct coordinate GPHUGE *points;
542: };
543:
544: struct gnuplot_contours {
545: struct gnuplot_contours *next;
546: struct coordinate GPHUGE *coords;
547: char isNewLevel;
548: char label[32];
549: int num_pts;
550: };
551:
552: struct iso_curve {
553: struct iso_curve *next;
554: int p_max; /* how many points are allocated */
555: int p_count; /* count of points in points */
556: struct coordinate GPHUGE *points;
557: };
558:
559: struct surface_points {
560: struct surface_points *next_sp; /* pointer to next plot in linked list */
561: int token; /* last token in re/plot line, for second pass */
562: enum PLOT_TYPE plot_type;
563: enum PLOT_STYLE plot_style;
564: char *title;
565: struct lp_style_type lp_properties;
566: int has_grid_topology;
567: int num_iso_read; /* Data files only - num of isolines read from file. */
568: /* for functions, num_iso_read is the number of 'primary' isolines (in x dirn) */
569: struct gnuplot_contours *contours; /* Not NULL If have contours. */
570: struct iso_curve *iso_crvs;
571: };
572:
573: /* It should go without saying that additional entries may be made
574: * only at the end of this structure. Any fields added must be
575: * optional - a value of 0 (or NULL pointer) means an older driver
576: * does not support that feature - gnuplot must still be able to
577: * function without that terminal feature
578: */
579:
580: /* values for the optional flags field - choose sensible defaults
581: * these aren't really very sensible names - multiplot attributes
582: * depend on whether stdout is redirected or not. Remember that
583: * the default is 0. Thus most drivers can do multiplot only if
584: * the output is redirected
585: */
586:
587: #define TERM_CAN_MULTIPLOT 1 /* tested if stdout not redirected */
588: #define TERM_CANNOT_MULTIPLOT 2 /* tested if stdout is redirected */
589: #define TERM_BINARY 4 /* open output file with "b" */
590:
591: struct TERMENTRY {
592: char *name;
593: #ifdef WIN16
594: char GPFAR description[80]; /* to make text go in FAR segment */
595: #else
596: char *description;
597: #endif
598: unsigned int xmax,ymax,v_char,h_char,v_tic,h_tic;
599:
600: void (*options) __PROTO((void));
601: void (*init) __PROTO((void));
602: void (*reset) __PROTO((void));
603: void (*text) __PROTO((void));
604: int (*scale) __PROTO((double, double));
605: void (*graphics) __PROTO((void));
606: void (*move) __PROTO((unsigned int, unsigned int));
607: void (*vector) __PROTO((unsigned int, unsigned int));
608: void (*linetype) __PROTO((int));
609: void (*put_text) __PROTO((unsigned int, unsigned int,char*));
610: /* the following are optional. set term ensures they are not NULL */
611: int (*text_angle) __PROTO((int));
612: int (*justify_text) __PROTO((enum JUSTIFY));
613: void (*point) __PROTO((unsigned int, unsigned int,int));
614: void (*arrow) __PROTO((unsigned int, unsigned int, unsigned int, unsigned int, int));
615: int (*set_font) __PROTO((char *font));
616: void (*pointsize) __PROTO((double)); /* change pointsize */
617: int flags;
618: void (*suspend) __PROTO((void)); /* called after one plot of multiplot */
619: void (*resume) __PROTO((void)); /* called before plots of multiplot */
620: void (*fillbox) __PROTO((int, unsigned int, unsigned int, unsigned int, unsigned int)); /* clear in multiplot mode */
621: void (*linewidth) __PROTO((double linewidth));
622: };
623:
624: #ifdef WIN16
625: # define termentry TERMENTRY far
626: #else
627: # define termentry TERMENTRY
628: #endif
629:
630:
631: /* we might specify a co-ordinate in first/second/graph/screen coords */
632: /* allow x,y and z to be in separate co-ordinates ! */
633: enum position_type { first_axes, second_axes, graph, screen };
634:
635: struct position {
636: enum position_type scalex,scaley,scalez;
637: double x,y,z;
638: };
639:
640: struct text_label {
641: struct text_label *next; /* pointer to next label in linked list */
642: int tag; /* identifies the label */
643: struct position place;
644: enum JUSTIFY pos;
645: int rotate;
646: char text[MAX_LINE_LEN+1];
647: char font[MAX_LINE_LEN+1];
648: }; /* Entry font added by DJL */
649:
650: struct arrow_def {
651: struct arrow_def *next; /* pointer to next arrow in linked list */
652: int tag; /* identifies the arrow */
653: struct position start;
654: struct position end;
655: TBOOLEAN head; /* arrow has a head or not */
656: struct lp_style_type lp_properties;
657: };
658:
659: struct linestyle_def {
660: struct linestyle_def *next; /* pointer to next linestyle in linked list */
661: int tag; /* identifies the linestyle */
662: struct lp_style_type lp_properties;
663: };
664:
665: /* Tic-mark labelling definition; see set xtics */
666: struct ticdef {
667: int type; /* one of three values below */
668: #define TIC_COMPUTED 1 /* default; gnuplot figures them */
669: #define TIC_SERIES 2 /* user-defined series */
670: #define TIC_USER 3 /* user-defined points */
671: #define TIC_MONTH 4 /* print out month names ((mo-1[B)%12)+1 */
672: #define TIC_DAY 5 /* print out day of week */
673: union {
674: struct { /* for TIC_SERIES */
675: double start, incr;
676: double end; /* ymax, if VERYLARGE */
677: } series;
678: struct ticmark *user; /* for TIC_USER */
679: } def;
680: };
681:
682: /* Defines one ticmark for TIC_USER style.
683: * If label==NULL, the value is printed with the usual format string.
684: * else, it is used as the format string (note that it may be a constant
685: * string, like "high" or "low").
686: */
687: struct ticmark {
688: double position; /* where on axis is this */
689: char *label; /* optional (format) string label */
690: struct ticmark *next; /* linked list */
691: };
692:
693: /*
694: * SS$_NORMAL is "normal completion", STS$M_INHIB_MSG supresses
695:
696: * printing a status message.
697: * SS$_ABORT is the general abort status code.
698: from: Martin Minow
699: decvax!minow
700: */
701: #ifdef VMS
702: # include <ssdef.h>
703: # include <stsdef.h>
704: # define IO_SUCCESS (SS$_NORMAL | STS$M_INHIB_MSG)
705: # define IO_ERROR SS$_ABORT
706: #endif /* VMS */
707:
708:
709: #ifndef IO_SUCCESS /* DECUS or VMS C will have defined these already */
710: # define IO_SUCCESS 0
711: #endif
712:
713: #ifndef IO_ERROR
714: # define IO_ERROR 1
715: #endif
716:
717: /* Some key global variables */
718: extern TBOOLEAN screen_ok; /* from util.c */
719: extern struct termentry *term;/* from term.c */
720: extern TBOOLEAN undefined; /* from internal.c */
721: extern char *input_line; /* from command.c */
722: extern int input_line_len;
723: extern char *replot_line;
724: extern struct lexical_unit *token;
725: extern int token_table_size;
726: extern int num_tokens, c_token;
727: extern int inline_num;
728: extern char c_dummy_var[MAX_NUM_VAR][MAX_ID_LEN+1];
729: extern struct ft_entry GPFAR ft[]; /* from plot.c */
730: extern struct udft_entry *first_udf;
731: extern struct udvt_entry *first_udv;
732: extern TBOOLEAN interactive;
733: extern char *infile_name;
734: extern struct udft_entry *dummy_func;
735: extern char dummy_var[MAX_NUM_VAR][MAX_ID_LEN+1]; /* from setshow.c */
736:
737: /* Windows needs to redefine stdin/stdout functions */
738: #ifdef _Windows
739: # include "win/wtext.h"
740: #endif
741:
742: #define TTOP 0
743: #define TBOTTOM 1
744: #define TUNDER 2
745: #define TLEFT 0
746: #define TRIGHT 1
747: #define TOUT 2
748: #define JLEFT 0
749: #define JRIGHT 1
750:
751: /* defines used for timeseries, seconds */
752: #define ZERO_YEAR 2000
753: #define JAN_FIRST_WDAY 6 /* 1st jan, 2000 is a Saturday (cal 1 2000 on unix) */
754: #define SEC_OFFS_SYS 946684800.0 /* zero gnuplot (2000) - zero system (1970) */
755: #define YEAR_SEC 31557600.0 /* avg, incl. leap year */
756: #define MON_SEC 2629800.0 /* YEAR_SEC / 12 */
757: #define WEEK_SEC 604800.0
758: #define DAY_SEC 86400.0
759:
760: /* returns from DF_READLINE in datafile.c */
761: /* +ve is number of columns read */
762: #define DF_EOF (-1)
763: #define DF_UNDEFINED (-2)
764: #define DF_FIRST_BLANK (-3)
765: #define DF_SECOND_BLANK (-4)
766:
767: /* HBB: changed to __inline__, which seems more usually
768: * understood by tools like, e.g., lclint */
769: /* if GP_INLINE has not yet been defined, set to __inline__ for gcc,
770: * nothing. I'd prefer that any other compilers have the defn in
771: * the makefile, rather than having a huge list of compilers here.
772: * But gcc is sufficiently ubiquitous that I'll allow it here !!!
773: */
774: #ifndef GP_INLINE
775: # ifdef __GNUC__
776: # define GP_INLINE __inline__
777: # else
778: # define GP_INLINE /*nothing*/
779: # endif
780: #endif
781:
782: #include "protos.h"
783:
784:
785: /* line/point parsing...
786: *
787: * allow_ls controls whether we are allowed to accept linestyle in
788: * the current context [ie not when doing a set linestyle command]
789: * allow_point is whether we accept a point command
790: * We assume compiler will optimise away if(0) or if(1)
791: */
792: #if defined(__FILE__) && defined(__LINE__) && defined(DEBUG_LP)
793: # define LP_DUMP(lp) \
794: fprintf(stderr, \
795: "lp_properties at %s:%d : lt: %d, lw: %.3f, pt: %d, ps: %.3f\n", \
796: __FILE__, __LINE__, lp.l_type, lp.l_width, lp.p_type, lp.p_size)
797: #else
798: # define LP_DUMP(lp)
799: #endif
800:
801: #define LP_PARSE(lp, allow_ls, allow_point, def_line, def_point) \
802: if (allow_ls && (almost_equals(c_token, "lines$tyle") || equals(c_token, "ls" ))) { \
803: struct value t; ++c_token; \
804: lp_use_properties(&(lp), (int) real(const_express(&t)), allow_point); \
805: } else { \
806: if (almost_equals(c_token, "linet$ype") || equals(c_token, "lt" )) { \
807: struct value t; ++c_token; \
808: lp.l_type = (int) real(const_express(&t))-1; \
809: } else lp.l_type = def_line; \
810: if (almost_equals(c_token, "linew$idth") || equals(c_token, "lw" )) { \
811: struct value t; ++c_token; \
812: lp.l_width = real(const_express(&t)); \
813: } else lp.l_width = 1.0; \
814: if ( (lp.pointflag = allow_point) != 0) { \
815: if (almost_equals(c_token, "pointt$ype") || equals(c_token, "pt" )) { \
816: struct value t; ++c_token; \
817: lp.p_type = (int) real(const_express(&t))-1; \
818: } else lp.p_type = def_point; \
819: if (almost_equals(c_token, "points$ize") || equals(c_token, "ps" )) { \
820: struct value t; ++c_token; \
821: lp.p_size = real(const_express(&t)); \
822: } else lp.p_size = pointsize; /* as in "set pointsize" */ \
823: } else lp.p_size = pointsize; /* give it a value */ \
824: LP_DUMP(lp); \
825: }
826:
827:
828:
829: #endif /* not PLOT_H */
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to plot.h CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [local] / OpenXM_contrib / gnuplot