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misc.c
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misc.c
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#ifndef lint
static char *RCSid = "$Id: misc.c,v 1.4 1998/06/30 16:46:15 lhecking Exp $";
#endif
/* GNUPLOT - misc.c */
/*[
* Copyright 1986 - 1993, 1998 Thomas Williams, Colin Kelley
*
* Permission to use, copy, and distribute this software and its
* documentation for any purpose with or without fee is hereby granted,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation.
*
* Permission to modify the software is granted, but not the right to
* distribute the complete modified source code. Modifications are to
* be distributed as patches to the released version. Permission to
* distribute binaries produced by compiling modified sources is granted,
* provided you
* 1. distribute the corresponding source modifications from the
* released version in the form of a patch file along with the binaries,
* 2. add special version identification to distinguish your version
* in addition to the base release version number,
* 3. provide your name and address as the primary contact for the
* support of your modified version, and
* 4. retain our contact information in regard to use of the base
* software.
* Permission to distribute the released version of the source code along
* with corresponding source modifications in the form of a patch file is
* granted with same provisions 2 through 4 for binary distributions.
*
* This software is provided "as is" without express or implied warranty
* to the extent permitted by applicable law.
]*/
#ifdef AMIGA_AC_5
#include <exec/types.h>
#endif /* AMIGA_AC_5 */
#include "plot.h"
#include "setshow.h"
extern int key_vpos, key_hpos, key_just;
extern int datatype[];
extern char timefmt[];
/* Used in save_version() */
extern char version[];
extern char patchlevel[];
extern char date[];
extern char gnuplot_copyright[];
extern char bug_email[];
extern char help_email[];
static void save_range __PROTO((FILE *fp, int axis, double min, double max, int autosc, char *text));
static void save_tics __PROTO((FILE *fp, int where, int axis, struct ticdef *tdef, TBOOLEAN rotate, char *text));
static void save_position __PROTO((FILE *fp, struct position *pos));
static void save_version __PROTO((FILE *fp));
static void save_functions__sub __PROTO((FILE *fp));
static void save_variables__sub __PROTO((FILE *fp));
static int lf_pop __PROTO((void));
static void lf_push __PROTO((FILE *fp));
static int find_maxl_cntr __PROTO((struct gnuplot_contours *contours, int *count));
#define SAVE_NUM_OR_TIME(fp, x, axis) \
do{if (datatype[axis]==TIME) { \
char s[80]; char *p; \
putc('"', fp); \
gstrftime(s,80,timefmt,(double)(x)); \
for(p=s; *p; ++p) {\
if ( *p == '\t' ) fprintf(fp,"\\t");\
else if (*p == '\n') fprintf(fp, "\\n"); \
else if ( *p > 126 || *p < 32 ) fprintf(fp,"\\%03o",*p);\
else putc(*p, fp);\
}\
putc('"', fp);\
} else {\
fprintf(fp,"%g",x);\
}} while(0)
/* State information for load_file(), to recover from errors
* and properly handle recursive load_file calls
*/
typedef struct lf_state_struct LFS;
struct lf_state_struct {
FILE *fp; /* file pointer for load file */
char *name; /* name of file */
TBOOLEAN interactive; /* value of interactive flag on entry */
TBOOLEAN do_load_arg_substitution; /* likewise ... */
int inline_num; /* inline_num on entry */
LFS *prev; /* defines a stack */
char *call_args[10]; /* args when file is 'call'ed instead of 'load'ed */
} *lf_head = NULL; /* NULL if not in load_file */
/* these two could be in load_file, except for error recovery */
extern TBOOLEAN do_load_arg_substitution;
extern char *call_args[10];
/*
* cp_alloc() allocates a curve_points structure that can hold 'num'
* points.
*/
struct curve_points *
cp_alloc(num)
int num;
{
struct curve_points *cp;
cp = (struct curve_points *) gp_alloc((unsigned long)sizeof(struct curve_points), "curve");
cp->p_max = (num >= 0 ? num : 0);
if (num > 0) {
cp->points = (struct coordinate GPHUGE *)
gp_alloc((unsigned long)num * sizeof(struct coordinate), "curve points");
} else
cp->points = (struct coordinate GPHUGE *) NULL;
cp->next_cp = NULL;
cp->title = NULL;
return(cp);
}
/*
* cp_extend() reallocates a curve_points structure to hold "num"
* points. This will either expand or shrink the storage.
*/
void cp_extend(cp, num)
struct curve_points *cp;
int num;
{
#if defined(DOS16) || defined(WIN16)
/* Make sure we do not allocate more than 64k points in msdos since
* indexing is done with 16-bit int
* Leave some bytes for malloc maintainance.
*/
if (num > 32700)
int_error("Array index must be less than 32k in msdos", NO_CARET);
#endif /* MSDOS */
if (num == cp->p_max) return;
if (num > 0) {
if (cp->points == NULL) {
cp->points = (struct coordinate GPHUGE *)
gp_alloc((unsigned long)num * sizeof(struct coordinate), "curve points");
} else {
cp->points = (struct coordinate GPHUGE *)
gp_realloc(cp->points, (unsigned long)num * sizeof(struct coordinate), "expanding curve points");
}
cp->p_max = num;
} else {
if (cp->points != (struct coordinate GPHUGE *) NULL)
free(cp->points);
cp->points = (struct coordinate GPHUGE *) NULL;
cp->p_max = 0;
}
}
/*
* cp_free() releases any memory which was previously malloc()'d to hold
* curve points (and recursively down the linked list).
*/
void cp_free(cp)
struct curve_points *cp;
{
if (cp) {
cp_free(cp->next_cp);
if (cp->title)
free((char *)cp->title);
if (cp->points)
free((char *)cp->points);
free((char *)cp);
}
}
/*
* iso_alloc() allocates a iso_curve structure that can hold 'num'
* points.
*/
struct iso_curve *
iso_alloc(num)
int num;
{
struct iso_curve *ip;
ip = (struct iso_curve *) gp_alloc((unsigned long)sizeof(struct iso_curve), "iso curve");
ip->p_max = (num >= 0 ? num : 0);
if (num > 0) {
ip->points = (struct coordinate GPHUGE *)
gp_alloc((unsigned long)num * sizeof(struct coordinate), "iso curve points");
} else
ip->points = (struct coordinate GPHUGE *) NULL;
ip->next = NULL;
return(ip);
}
/*
* iso_extend() reallocates a iso_curve structure to hold "num"
* points. This will either expand or shrink the storage.
*/
void iso_extend(ip, num)
struct iso_curve *ip;
int num;
{
if (num == ip->p_max) return;
#if defined(DOS16) || defined(WIN16)
/* Make sure we do not allocate more than 64k points in msdos since
* indexing is done with 16-bit int
* Leave some bytes for malloc maintainance.
*/
if (num > 32700)
int_error("Array index must be less than 32k in msdos", NO_CARET);
#endif /* 16bit (Win)Doze */
if (num > 0) {
if (ip->points == NULL) {
ip->points = (struct coordinate GPHUGE *)
gp_alloc((unsigned long)num * sizeof(struct coordinate), "iso curve points");
} else {
ip->points = (struct coordinate GPHUGE *)
gp_realloc(ip->points, (unsigned long)num * sizeof(struct coordinate), "expanding curve points");
}
ip->p_max = num;
} else {
if (ip->points != (struct coordinate GPHUGE *) NULL)
free(ip->points);
ip->points = (struct coordinate GPHUGE *) NULL;
ip->p_max = 0;
}
}
/*
* iso_free() releases any memory which was previously malloc()'d to hold
* iso curve points.
*/
void iso_free(ip)
struct iso_curve *ip;
{
if (ip) {
if (ip->points)
free((char *)ip->points);
free((char *)ip);
}
}
/*
* sp_alloc() allocates a surface_points structure that can hold 'num_iso_1'
* iso-curves with 'num_samp_2' samples and 'num_iso_2' iso-curves with
* 'num_samp_1' samples.
* If, however num_iso_2 or num_samp_1 is zero no iso curves are allocated.
*/
struct surface_points *
sp_alloc(num_samp_1,num_iso_1,num_samp_2,num_iso_2)
int num_samp_1,num_iso_1,num_samp_2,num_iso_2;
{
struct surface_points *sp;
sp = (struct surface_points *) gp_alloc((unsigned long)sizeof(struct surface_points), "surface");
sp->next_sp = NULL;
sp->title = NULL;
sp->contours = NULL;
sp->iso_crvs = NULL;
sp->num_iso_read = 0;
if (num_iso_2 > 0 && num_samp_1 > 0) {
int i;
struct iso_curve *icrv;
for (i = 0; i < num_iso_1; i++) {
icrv = iso_alloc(num_samp_2);
icrv->next = sp->iso_crvs;
sp->iso_crvs = icrv;
}
for (i = 0; i < num_iso_2; i++) {
icrv = iso_alloc(num_samp_1);
icrv->next = sp->iso_crvs;
sp->iso_crvs = icrv;
}
} else
sp->iso_crvs = (struct iso_curve *) NULL;
return(sp);
}
/*
* sp_replace() updates a surface_points structure so it can hold 'num_iso_1'
* iso-curves with 'num_samp_2' samples and 'num_iso_2' iso-curves with
* 'num_samp_1' samples.
* If, however num_iso_2 or num_samp_1 is zero no iso curves are allocated.
*/
void sp_replace(sp,num_samp_1,num_iso_1,num_samp_2,num_iso_2)
struct surface_points *sp;
int num_samp_1,num_iso_1,num_samp_2,num_iso_2;
{
int i;
struct iso_curve *icrv, *icrvs = sp->iso_crvs;
while ( icrvs ) {
icrv = icrvs;
icrvs = icrvs->next;
iso_free( icrv );
}
sp->iso_crvs = NULL;
if (num_iso_2 > 0 && num_samp_1 > 0) {
for (i = 0; i < num_iso_1; i++) {
icrv = iso_alloc(num_samp_2);
icrv->next = sp->iso_crvs;
sp->iso_crvs = icrv;
}
for (i = 0; i < num_iso_2; i++) {
icrv = iso_alloc(num_samp_1);
icrv->next = sp->iso_crvs;
sp->iso_crvs = icrv;
}
} else
sp->iso_crvs = (struct iso_curve *) NULL;
}
/*
* sp_free() releases any memory which was previously malloc()'d to hold
* surface points.
*/
void sp_free(sp)
struct surface_points *sp;
{
if (sp) {
sp_free(sp->next_sp);
if (sp->title)
free((char *)sp->title);
if (sp->contours) {
struct gnuplot_contours *cntr, *cntrs = sp->contours;
while (cntrs) {
cntr = cntrs;
cntrs = cntrs->next;
free(cntr->coords);
free(cntr);
}
}
if (sp->iso_crvs) {
struct iso_curve *icrv, *icrvs = sp->iso_crvs;
while (icrvs) {
icrv = icrvs;
icrvs = icrvs->next;
iso_free(icrv);
}
}
free((char *)sp);
}
}
/* ======================================================================= */
/*
* functions corresponding to the arguments of the GNUPLOT `save` command
*/
void save_functions(fp)
FILE *fp;
{
if (fp) {
(void) save_version(fp); /* I _love_ information written */
(void) save_functions__sub(fp); /* at the top and the end of an */
fprintf(fp,"# EOF\n"); /* human readable ASCII file. */
(void) fclose(fp); /* (JFi) */
} else
os_error("Cannot open save file",c_token);
}
void save_variables(fp)
FILE *fp;
{
if (fp) {
(void) save_version(fp);
(void) save_variables__sub(fp);
fprintf(fp,"# EOF\n");
(void) fclose(fp);
} else
os_error("Cannot open save file",c_token);
}
void save_set(fp)
FILE *fp;
{
if (fp) {
save_version(fp);
save_set_all(fp);
fprintf(fp,"# EOF\n");
(void) fclose(fp);
} else
os_error("Cannot open save file",c_token);
}
void save_all(fp)
FILE *fp;
{
if (fp) {
save_version(fp);
save_set_all(fp);
save_functions__sub(fp);
save_variables__sub(fp);
fprintf(fp,"%s\n",replot_line);
fprintf(fp,"# EOF\n");
(void) fclose(fp);
} else
os_error("Cannot open save file",c_token);
}
/* ======================================================================= */
/*
* auxiliary functions
*/
static void save_version(fp)
FILE *fp;
{
#if 1 /* HBB 980311: reduce DATA size: move these string tables to FAR mem */
/* don't use tabs in an ASCII file */
static char GPFAR version_string []=
"# %s\n"
"# %sversion %s\n"
"# patchlevel %s\n"
"# last modified %s\n"
"#\n"
"# %s\n"
"# Thomas Williams, Colin Kelley and many others\n"
"#\n"
"# Send comments and requests for help to %s\n"
"# Send bugs, suggestions and mods to %s\n"
"#\n"
;
fprintf(fp, version_string,
PROGRAM,
OS, version,
patchlevel,
date,
gnuplot_copyright,
help_email,
bug_email
);
#else
/* don't use tabs in an ASCII file */
fprintf(fp, "# %s\n",PROGRAM);
fprintf(fp, "# %sversion %s\n", OS, version);
fprintf(fp, "# patchlevel %s\n",patchlevel);
fprintf(fp, "# last modified %s\n", date);
fprintf(fp, "#\n");
fprintf(fp, "# %s\n", gnuplot_copyright);
fprintf(fp, "# Thomas Williams, Colin Kelley and many others\n");
fprintf(fp, "#\n");
fprintf(fp, "# Send comments and requests for help to %s\n", help_email);
fprintf(fp, "# Send bugs, suggestions and mods to %s\n", bug_email);
fprintf(fp, "#\n");
#endif
}
static void save_functions__sub(fp)
FILE *fp;
{
register struct udft_entry *udf = first_udf;
while (udf) {
if (udf->definition) {
fprintf(fp,"%s\n",udf->definition);
}
udf = udf->next_udf;
}
}
static void save_variables__sub(fp)
FILE *fp;
{
register struct udvt_entry *udv = first_udv->next_udv; /* always skip pi */
while (udv) {
if (!udv->udv_undef) {
fprintf(fp,"%s = ",udv->udv_name);
disp_value(fp,&(udv->udv_value));
(void) putc('\n',fp);
}
udv = udv->next_udv;
}
}
void save_set_all(fp)
FILE *fp;
{
struct text_label *this_label;
struct arrow_def *this_arrow;
struct linestyle_def *this_linestyle;
char str[MAX_LINE_LEN+1];
/* opinions are split as to whether we save term and outfile
* as a compromise, we output them as comments !
*/
if (term)
fprintf(fp,"# set terminal %s %s\n", term->name, term_options);
else
fputs("# set terminal unknown\n", fp);
if (outstr)
fprintf(fp,"# set output '%s'\n", outstr);
else
fputs("# set output\n", fp);
fprintf(fp,"set %sclip points\n", (clip_points)? "" : "no");
fprintf(fp,"set %sclip one\n", (clip_lines1)? "" : "no");
fprintf(fp,"set %sclip two\n", (clip_lines2)? "" : "no");
fprintf(fp,"set bar %f\n", bar_size);
if (draw_border)
/* HBB 980609: handle border linestyle, too */
fprintf(fp,"set border %d lt %d lw %.3f\n", draw_border, border_lp.l_type+1, border_lp.l_width);
else
fprintf(fp, "set noborder\n");
fprintf(fp, "set xdata%s\n", datatype[FIRST_X_AXIS] == TIME ? " time" : "");
fprintf(fp, "set ydata%s\n", datatype[FIRST_Y_AXIS] == TIME ? " time" : "");
fprintf(fp, "set zdata%s\n", datatype[FIRST_Z_AXIS] == TIME ? " time" : "");
fprintf(fp, "set x2data%s\n", datatype[SECOND_X_AXIS] == TIME ? " time" : "");
fprintf(fp, "set y2data%s\n", datatype[SECOND_Y_AXIS] == TIME ? " time" : "");
if (boxwidth<0.0)
fprintf(fp,"set boxwidth\n");
else
fprintf(fp,"set boxwidth %g\n",boxwidth);
if (dgrid3d)
fprintf(fp,"set dgrid3d %d,%d, %d\n",
dgrid3d_row_fineness,
dgrid3d_col_fineness,
dgrid3d_norm_value);
fprintf(fp,"set dummy %s,%s\n",dummy_var[0], dummy_var[1]);
fprintf(fp,"set format x \"%s\"\n", conv_text(str,xformat));
fprintf(fp,"set format y \"%s\"\n", conv_text(str,yformat));
fprintf(fp,"set format x2 \"%s\"\n", conv_text(str,x2format));
fprintf(fp,"set format y2 \"%s\"\n", conv_text(str,y2format));
fprintf(fp,"set format z \"%s\"\n", conv_text(str,zformat));
if (work_grid.l_type==0)
fputs("set nogrid\n", fp);
else {
if (polar_grid_angle) /* set angle already output */
fprintf(fp, "set grid polar %f\n", polar_grid_angle/ang2rad);
else
fputs("set grid nopolar\n", fp);
fprintf(fp,"set grid %sxtics %sytics %sztics %sx2tics %sy2tics %smxtics %smytics %smztics %smx2tics %smy2tics lt %d lw %.3f, lt %d lw %.3f\n",
work_grid.l_type&GRID_X ? "" : "no",
work_grid.l_type&GRID_Y ? "" : "no",
work_grid.l_type&GRID_Z ? "" : "no",
work_grid.l_type&GRID_X2 ? "" : "no",
work_grid.l_type&GRID_Y2 ? "" : "no",
work_grid.l_type&GRID_MX ? "" : "no",
work_grid.l_type&GRID_MY ? "" : "no",
work_grid.l_type&GRID_MZ ? "" : "no",
work_grid.l_type&GRID_MX2 ? "" : "no",
work_grid.l_type&GRID_MY2 ? "" : "no",
grid_lp.l_type+1, grid_lp.l_width,
mgrid_lp.l_type+1, mgrid_lp.l_width);
}
fprintf(fp,"set key title \"%s\"\n", conv_text(str,key_title));
switch (key) {
case -1 : {
fprintf(fp,"set key");
switch(key_hpos) {
case TRIGHT:
fprintf(fp," right");
break;
case TLEFT:
fprintf(fp," left");
break;
case TOUT:
fprintf(fp," out");
break;
}
switch(key_vpos) {
case TTOP:
fprintf(fp," top");
break;
case TBOTTOM:
fprintf(fp," bottom");
break;
case TUNDER:
fprintf(fp," below");
break;
}
break;
}
case 0 :
fprintf(fp,"set nokey\n");
break;
case 1 :
fprintf(fp,"set key ");
save_position(fp, &key_user_pos);
break;
}
if (key) {
fprintf(fp, " %s %sreverse box linetype %d linewidth %.3f samplen %g spacing %g width %g\n",
key_just==JLEFT ? "Left" : "Right",
key_reverse ? "" : "no",
key_box.l_type+1, key_box.l_width, key_swidth, key_vert_factor, key_width_fix);
}
fprintf(fp,"set nolabel\n");
for (this_label = first_label; this_label != NULL;
this_label = this_label->next) {
fprintf(fp,"set label %d \"%s\" at ",
this_label->tag,
conv_text(str,this_label->text));
save_position(fp, &this_label->place);
switch(this_label->pos) {
case LEFT :
fprintf(fp," left");
break;
case CENTRE :
fprintf(fp," centre");
break;
case RIGHT :
fprintf(fp," right");
break;
}
fprintf(fp," %srotate",this_label->rotate?"":"no");
if ((this_label->font)[0]!='\0')
fprintf(fp," font \"%s\"",this_label->font);
/* Entry font added by DJL */
fputc('\n',fp);
}
fprintf(fp,"set noarrow\n");
for (this_arrow = first_arrow; this_arrow != NULL;
this_arrow = this_arrow->next) {
fprintf(fp,"set arrow %d from ", this_arrow->tag);
save_position(fp, &this_arrow->start);
fputs(" to ", fp);
save_position(fp, &this_arrow->end);
fprintf(fp, " %s linetype %d linewidth %.3f\n",
this_arrow->head ? "" : " nohead",
this_arrow->lp_properties.l_type+1,
this_arrow->lp_properties.l_width);
}
fprintf(fp,"set nolinestyle\n");
for (this_linestyle = first_linestyle; this_linestyle != NULL;
this_linestyle = this_linestyle->next) {
fprintf(fp,"set linestyle %d ", this_linestyle->tag);
fprintf(fp,"linetype %d linewidth %.3f pointtype %d pointsize %.3f\n",
this_linestyle->lp_properties.l_type+1,
this_linestyle->lp_properties.l_width,
this_linestyle->lp_properties.p_type+1,
this_linestyle->lp_properties.p_size);
}
fprintf(fp,"set nologscale\n");
if (is_log_x) fprintf(fp,"set logscale x %g\n", base_log_x);
if (is_log_y) fprintf(fp,"set logscale y %g\n", base_log_y);
if (is_log_z) fprintf(fp,"set logscale z %g\n", base_log_z);
if (is_log_x2) fprintf(fp,"set logscale x2 %g\n", base_log_x2);
if (is_log_y2) fprintf(fp,"set logscale y2 %g\n", base_log_y2);
fprintf(fp,"set offsets %g, %g, %g, %g\n",loff,roff,toff,boff);
fprintf(fp,"set pointsize %g\n", pointsize);
fprintf(fp,"set encoding %s\n",encoding_names[encoding]);
fprintf(fp,"set %spolar\n", (polar)? "" : "no");
fprintf(fp,"set angles %s\n", (angles_format == ANGLES_RADIANS)?
"radians" : "degrees");
fprintf(fp,"set %sparametric\n", (parametric)? "" : "no");
fprintf(fp,"set view %g, %g, %g, %g\n",
surface_rot_x, surface_rot_z, surface_scale, surface_zscale);
fprintf(fp,"set samples %d, %d\n",samples_1,samples_2);
fprintf(fp,"set isosamples %d, %d\n",iso_samples_1,iso_samples_2);
fprintf(fp,"set %ssurface\n",(draw_surface) ? "" : "no");
fprintf(fp,"set %scontour",(draw_contour) ? "" : "no");
switch (draw_contour) {
case CONTOUR_NONE: fprintf(fp, "\n"); break;
case CONTOUR_BASE: fprintf(fp, " base\n"); break;
case CONTOUR_SRF: fprintf(fp, " surface\n"); break;
case CONTOUR_BOTH: fprintf(fp, " both\n"); break;
}
if (label_contours)
fprintf(fp,"set clabel '%s'\n",contour_format);
else
fprintf(fp,"set noclabel\n");
save_hidden3doptions(fp);
fprintf(fp,"set cntrparam order %d\n", contour_order);
fprintf(fp,"set cntrparam ");
switch (contour_kind) {
case CONTOUR_KIND_LINEAR: fprintf(fp, "linear\n"); break;
case CONTOUR_KIND_CUBIC_SPL: fprintf(fp, "cubicspline\n"); break;
case CONTOUR_KIND_BSPLINE: fprintf(fp, "bspline\n"); break;
}
fprintf(fp,"set cntrparam levels ");
switch (levels_kind) {
case LEVELS_AUTO:
fprintf(fp, "auto %d\n", contour_levels);
break;
case LEVELS_INCREMENTAL:
fprintf(fp, "incremental %g,%g,%g\n",
levels_list[0], levels_list[1],
levels_list[0]+levels_list[1]*contour_levels);
break;
case LEVELS_DISCRETE:
{ int i;
fprintf(fp, "discrete %g", levels_list[0]);
for(i = 1; i < contour_levels; i++)
fprintf(fp, ",%g ", levels_list[i]);
fprintf(fp, "\n");
}
}
fprintf(fp,"set cntrparam points %d\n", contour_pts);
fprintf(fp,"set size ratio %g %g,%g\n",aspect_ratio,xsize,ysize);
fprintf(fp,"set origin %g,%g\n",xoffset,yoffset);
fprintf(fp,"set data style ");
switch (data_style) {
case LINES: fprintf(fp,"lines\n"); break;
case POINTSTYLE: fprintf(fp,"points\n"); break;
case IMPULSES: fprintf(fp,"impulses\n"); break;
case LINESPOINTS: fprintf(fp,"linespoints\n"); break;
case DOTS: fprintf(fp,"dots\n"); break;
case YERRORBARS: fprintf(fp,"yerrorbars\n"); break;
case XERRORBARS: fprintf(fp,"xerrorbars\n"); break;
case XYERRORBARS: fprintf(fp,"xyerrorbars\n"); break;
case BOXES: fprintf(fp,"boxes\n"); break;
case BOXERROR: fprintf(fp,"boxerrorbars\n"); break;
case BOXXYERROR: fprintf(fp,"boxxyerrorbars\n"); break;
case STEPS: fprintf(fp,"steps\n"); break; /* JG */
case FSTEPS: fprintf(fp,"fsteps\n"); break; /* HOE */
case HISTEPS: fprintf(fp,"histeps\n"); break; /* CAC */
case VECTOR : fprintf(fp, "vector\n"); break;
case FINANCEBARS: fprintf(fp, "financebars\n"); break;
case CANDLESTICKS: fprintf(fp, "candlesticks\n"); break;
}
fprintf(fp,"set function style ");
switch (func_style) {
case LINES: fprintf(fp,"lines\n"); break;
case POINTSTYLE: fprintf(fp,"points\n"); break;
case IMPULSES: fprintf(fp,"impulses\n"); break;
case LINESPOINTS: fprintf(fp,"linespoints\n"); break;
case DOTS: fprintf(fp,"dots\n"); break;
case YERRORBARS: fprintf(fp,"yerrorbars\n"); break;
case XERRORBARS: fprintf(fp,"xerrorbars\n"); break;
case XYERRORBARS: fprintf(fp,"xyerrorbars\n"); break;
case BOXXYERROR: fprintf(fp,"boxxyerrorbars\n"); break;
case BOXES: fprintf(fp,"boxes\n"); break;
case BOXERROR: fprintf(fp,"boxerrorbars\n"); break;
case STEPS: fprintf(fp,"steps\n"); break; /* JG */
case FSTEPS: fprintf(fp,"fsteps\n"); break; /* HOE */
case HISTEPS: fprintf(fp,"histeps\n"); break; /* CAC */
case VECTOR: fprintf(fp,"vector\n"); break;
case FINANCEBARS: fprintf(fp, "financebars\n"); break;
case CANDLESTICKS: fprintf(fp, "candlesticks\n"); break;
default: fprintf(fp, "---error!---\n"); /* HBB: default case demanded by gcc, still needed ?? */
}
fprintf(fp,"set xzeroaxis lt %d lw %.3f\n", xzeroaxis.l_type+1,xzeroaxis.l_width);
fprintf(fp,"set x2zeroaxis lt %d lw %.3f\n", x2zeroaxis.l_type+1,x2zeroaxis.l_width);
fprintf(fp,"set yzeroaxis lt %d lw %.3f\n", yzeroaxis.l_type+1,yzeroaxis.l_width);
fprintf(fp,"set y2zeroaxis lt %d lw %.3f\n", y2zeroaxis.l_type+1,y2zeroaxis.l_width);
fprintf(fp,"set tics %s\n", (tic_in)? "in" : "out");
fprintf(fp,"set ticslevel %g\n", ticslevel);
fprintf(fp,"set ticscale %g %g\n", ticscale, miniticscale);
#define SAVE_XYZLABEL(name,lab) { \
fprintf(fp, "set %s \"%s\" %f,%f ", \
name, conv_text(str,lab.text),lab.xoffset,lab.yoffset); \
fprintf(fp, " \"%s\"\n", conv_text(str, lab.font)); \
}
#define SAVE_MINI(name,m,freq) switch(m&TICS_MASK) { \
case 0: fprintf(fp, "set no%s\n", name); break; \
case MINI_AUTO: fprintf(fp, "set %s\n",name); break; \
case MINI_DEFAULT: fprintf(fp, "set %s default\n",name); break; \
case MINI_USER: fprintf(fp, "set %s %f\n", name, freq); break; \
}
SAVE_MINI("mxtics", mxtics, mxtfreq)
SAVE_MINI("mytics", mytics, mytfreq)
SAVE_MINI("mx2tics", mx2tics, mx2tfreq)
SAVE_MINI("my2tics", my2tics, my2tfreq)
save_tics(fp, xtics, FIRST_X_AXIS, &xticdef, rotate_xtics, "x");
save_tics(fp, ytics, FIRST_Y_AXIS, &yticdef, rotate_ytics, "y");
save_tics(fp, ztics, FIRST_Z_AXIS, &zticdef, rotate_ztics, "z");
save_tics(fp, x2tics, SECOND_X_AXIS, &x2ticdef, rotate_x2tics, "x2");
save_tics(fp, y2tics, SECOND_Y_AXIS, &y2ticdef, rotate_y2tics, "y2");
SAVE_XYZLABEL("title", title);
fprintf(fp, "set %s \"%s\" %s %srotate %f,%f ",
"timestamp", conv_text(str,timelabel.text),
(timelabel_bottom?"bottom":"top"),
(timelabel_rotate?"":"no"),
timelabel.xoffset,timelabel.yoffset);
fprintf(fp, " \"%s\"\n", conv_text(str, timelabel.font));
save_range(fp,R_AXIS,rmin,rmax,autoscale_r, "r");
save_range(fp,T_AXIS,tmin,tmax,autoscale_t, "t");
save_range(fp,U_AXIS,umin,umax,autoscale_u, "u");
save_range(fp,V_AXIS,vmin,vmax,autoscale_v, "v");
SAVE_XYZLABEL("xlabel", xlabel);
SAVE_XYZLABEL("x2label", x2label);
if (strlen(timefmt)) {
fprintf(fp,"set timefmt \"%s\"\n", conv_text(str,timefmt));
}
save_range(fp,FIRST_X_AXIS,xmin,xmax,autoscale_x, "x");
save_range(fp,SECOND_X_AXIS,x2min,x2max,autoscale_x2, "x2");
SAVE_XYZLABEL("ylabel", ylabel);
SAVE_XYZLABEL("y2label", y2label);
save_range(fp,FIRST_Y_AXIS,ymin,ymax,autoscale_y, "y");
save_range(fp,SECOND_Y_AXIS,y2min,y2max,autoscale_y2, "y2");
SAVE_XYZLABEL("zlabel", zlabel);
save_range(fp,FIRST_Z_AXIS,zmin,zmax,autoscale_z, "z");
fprintf(fp,"set zero %g\n",zero);
fprintf(fp,"set lmargin %d\nset bmargin %d\nset rmargin %d\nset tmargin %d\n",
lmargin, bmargin, rmargin, tmargin);
fprintf(fp,"set locale \"%s\"\n", cur_locale);
}
static void save_tics(fp, where, axis, tdef, rotate, text)
FILE *fp;
int where;
int axis;
struct ticdef *tdef;
TBOOLEAN rotate;
char *text;
{
char str[MAX_LINE_LEN+1];
if (where==NO_TICS) {
fprintf(fp, "set no%stics\n", text);
return;
}
fprintf(fp,"set %stics %s %smirror %srotate ", text, (where&TICS_MASK)==TICS_ON_AXIS ? "axis" : "border", (where&TICS_MIRROR) ? "" : "no", rotate ? "" : "no");
switch(tdef->type) {
case TIC_COMPUTED: {
break;
}
case TIC_MONTH:{
fprintf(fp,"\nset %smtics",text);
break;
}
case TIC_DAY:{
fprintf(fp,"\nset %cdtics",axis);
break;
}
case TIC_SERIES:
if ( datatype[axis] == TIME ) {
if (tdef->def.series.start != -VERYLARGE) {
char fd[26];
gstrftime(fd,24,timefmt,(double)tdef->def.series.start);
fprintf(fp, "\"%s\",", conv_text(str,fd));
}
fprintf(fp,"%g",tdef->def.series.incr);
if (tdef->def.series.end != VERYLARGE) {
char td[26];
gstrftime(td,24,timefmt,(double)tdef->def.series.end);
fprintf(fp,",\"%s\"",conv_text(str,td));
}
} else { /* !TIME */
if (tdef->def.series.start != -VERYLARGE)
fprintf(fp, "%g,", tdef->def.series.start);
fprintf(fp, "%g", tdef->def.series.incr);
if (tdef->def.series.end != VERYLARGE)
fprintf(fp, ",%g", tdef->def.series.end);
}
break;
case TIC_USER: {
register struct ticmark *t;
int time;
time = (datatype[axis] == TIME);
fprintf(fp, " (");
for (t = tdef->def.user; t != NULL; t=t->next) {
if (t->label)
fprintf(fp, "\"%s\" ", conv_text(str, t->label));
if (time) {
char td[26];
gstrftime(td,24,timefmt,(double)t->position);
fprintf(fp,"\"%s\"",conv_text(str,td));
} else {
fprintf(fp, "%g", t->position);
}
if (t->next) {
fprintf(fp, ", ");
}
}
fprintf(fp, ")");
break;
}
}
putc('\n', fp);
}
static void save_position(fp, pos)
FILE *fp;
struct position *pos;
{
static char *msg[]={"first_axes ","second axes ", "graph ", "screen "};
assert(first_axes==0 && second_axes==1 && graph==2 && screen==3);
fprintf(fp, "%s%g, %s%g, %s%g",
pos->scalex == first_axes ? "" : msg[pos->scalex], pos->x,
pos->scaley == pos->scalex ? "" : msg[pos->scaley], pos->y,
pos->scalez == pos->scaley ? "" : msg[pos->scalez], pos->z);
}
void load_file(fp, name, can_do_args)
FILE *fp;
char *name;
TBOOLEAN can_do_args;
{
register int len;
int start, left;
int more;
int stop = FALSE;
lf_push(fp); /* save state for errors and recursion */
do_load_arg_substitution = can_do_args;
if (fp == (FILE *)NULL) {
/* HBB 980311: alloc() it, to save valuable stack space: */
char *errbuf = gp_alloc(BUFSIZ, "load_file errorstring");
(void) sprintf(errbuf, "Cannot open %s file '%s'",
can_do_args ? "call" : "load", name);
os_error(errbuf, c_token);
free(errbuf);
} else {
/* go into non-interactive mode during load */
/* will be undone below, or in load_file_error */
interactive = FALSE;
inline_num = 0;
infile_name = name;
if (can_do_args) {
int aix = 0;
while (++c_token < num_tokens && aix <= 9) {
if (isstring(c_token))
m_quote_capture(&call_args[aix++], c_token, c_token);
else
m_capture(&call_args[aix++], c_token, c_token);
}
/* A GNUPLOT "call" command can have up to _10_ arguments named "$0"
to "$9". After reading the 10th argument (i.e.: "$9") the variable
'aix' contains the value '10' because of the 'aix++' construction
in '&call_args[aix++]'. So I think the following test of 'aix'
should be done against '10' instead of '9'. (JFi) */
/* if (c_token >= num_tokens && aix > 9)*/
if (c_token >= num_tokens && aix > 10)
int_error("too many arguments for CALL <file>", ++c_token);
}
while (!stop) { /* read all commands in file */
/* read one command */
left = input_line_len;
start = 0;
more = TRUE;
while (more) {
if (fgets(&(input_line[start]), left, fp) == (char *)NULL) {
stop = TRUE; /* EOF in file */
input_line[start] = '\0';
more = FALSE;
} else {
inline_num++;
len = strlen(input_line) - 1;
if (input_line[len] == '\n') { /* remove any newline */
input_line[len] = '\0';
/* Look, len was 1-1 = 0 before, take care here! */
if (len > 0) --len;
} else if (len+2 >= left) {
extend_input_line();
left=input_line_len-len-1;
start=len+1;
continue; /* don't check for '\' */
}
if (input_line[len] == '\\') {
/* line continuation */
start = len;
left = input_line_len - start;
} else