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/* Hey Emacs this is -*- C -*-

* $Id: pstricks.trm,v 1.34 2013/10/09 02:41:22 sfeam Exp $

/* GNUPLOT - pstricks.trm */

/*[

* 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.

]*/

* This file is included by ../term.c.

* This terminal driver supports:

* The PSTricks macros for LaTeX.

* AUTHORS

* David Kotz

* Raymond Toy toy@soho.crd.ge.com

* Modified the eepic.trm file to use PSTricks macros instead.

* 20 Mar 93:

* Utilized many suggestions from Gisli Ottarsson

* (gisli@liapunov.eecs.umich.edu) to create a new version.

* Should also work with TeX as well as LaTeX.

* If you have PSTricks version 0.91, #define OLD_PST to

* get the right dots.

* Added a really ugly hack (enabled by default) to print

* "nice" numbers for axis labels. This should really be at

* a higher level in the code, but I'm lazy right now.

* send your comments or suggestions to (gnuplot-info@lists.sourceforge.net).

* This file contains the PSTricks terminal driver, intended for use with the

* pstricks.sty macro package for LaTeX. This is an alternative to the

* eepic and latex driver. You need pstricks.sty, and, of course, a printer

* that understands PostScript. Ghostscript understands Postscript too.

* PSTricks is available via anonymous ftp from the /pub directory

* at Princeton.EDU. This driver definitely does not come close to

* using the full capability of the PSTricks package.

* adapted to the new terminal layout by Stefan Bodewig (Dec. 1995)

* adapted to support pm3d by Tim Piessens and Petr Mikulik (Jan. 2003)

#include "driver.h"

#ifdef TERM_REGISTER

register_term(pstricks)

#endif

#ifdef TERM_PROTO

TERM_PUBLIC void PSTRICKS_options __PROTO((void));

TERM_PUBLIC void PSTRICKS_init __PROTO((void));

TERM_PUBLIC void PSTRICKS_graphics __PROTO((void));

TERM_PUBLIC void PSTRICKS_text __PROTO((void));

TERM_PUBLIC void PSTRICKS_linetype __PROTO((int linetype));

TERM_PUBLIC void PSTRICKS_move __PROTO((unsigned int x, unsigned int y));

TERM_PUBLIC void PSTRICKS_point __PROTO((unsigned int x, unsigned int y, int number));

TERM_PUBLIC void PSTRICKS_vector __PROTO((unsigned int ux, unsigned int uy));

TERM_PUBLIC void PSTRICKS_arrow __PROTO((unsigned int sx, unsigned int sy, unsigned int ex, unsigned int ey, int head));

TERM_PUBLIC void PSTRICKS_put_text __PROTO((unsigned int x, unsigned int y, const char str[]));

TERM_PUBLIC int PSTRICKS_justify_text __PROTO((enum JUSTIFY mode));

TERM_PUBLIC int PSTRICKS_text_angle __PROTO((int ang));

TERM_PUBLIC void PSTRICKS_reset __PROTO((void));

TERM_PUBLIC int PSTRICKS_make_palette __PROTO((t_sm_palette *));

TERM_PUBLIC void PSTRICKS_set_color __PROTO((t_colorspec *));

TERM_PUBLIC void PSTRICKS_filled_polygon __PROTO((int, gpiPoint *));

#define PSTRICKS_XMAX 10000.0

#define PSTRICKS_YMAX 10000.0

#define PSTRICKS_HTIC 150

#define PSTRICKS_VTIC 200

#define PSTRICKS_HCHAR 160

#define PSTRICKS_VCHAR 420

#endif /* TERM_PROTO */

#ifndef TERM_PROTO_ONLY

#ifdef TERM_BODY

static void PSTRICKS_endline __PROTO((void));

static char *PSTRICKS_hack_text __PROTO((const char *s));

static float PSTRICKS_posx;

static float PSTRICKS_posy;

static enum JUSTIFY PSTRICKS_justify = LEFT;

static int PSTRICKS_angle = 0;

/* if 1 below, then the file size is shorter thanks to a macro for polygon */

#define PSTRICKS_SHORTER_FILE 1

#ifdef PSTRICKS_SHORTER_FILE

static int PSTRICKS_color = 0;

#else

static char PSTRICKS_color_str[16] = "";

#endif

static int PSTRICKS_palette_set = FALSE;

static int PSTRICKS_palette_size = 128;

#define PSTRICKS_TINY_DOT 0.00025 /* A tiny dot */

/* POINTS */

#define PSTRICKS_POINT_TYPES 12 /* we supply more point types */

static const char *PSTRICKS_points[] = {

"\\PST@Diamond",

"\\PST@Plus",

"\\PST@Square",

"\\PST@Cross",

"\\PST@Circle",

"\\PST@Triangle",

"\\PST@Pentagon",

"\\PST@Filldiamond",

"\\PST@Fillsquare",

"\\PST@Filltriangle",

"\\PST@Fillcircle",

"\\PST@Fillpentagon"

};

/* LINES */

#define PSTRICKS_NUMLINES 6 /* number of linetypes below */

static const char *PSTRICKS_lines[] = {

"\\PST@Border",

"\\PST@Axes",

"\\PST@Solid",

"\\PST@Dashed",

"\\PST@Dotted",

"\\PST@LongDash"

};

/* current line type */

static int PSTRICKS_type;

/* are we in the middle of a line */

static TBOOLEAN PSTRICKS_inline = FALSE;

/* terminate any line in progress */

static void PSTRICKS_endline __PROTO((void));

/* number of points in line so far */

static int PSTRICKS_linecount = 0;

/* max value for linecount */

#define PSTRICKS_LINEMAX 100

* Handle options

static int PST_hack_text = TRUE; /* Hack text on */

static int PST_unit_plot = FALSE; /* Unit-sized plot off */

TERM_PUBLIC void

PSTRICKS_options()

{

if (!END_OF_COMMAND) {

if (almost_equals(c_token, "no$hacktext")) {

PST_hack_text = FALSE;

c_token++;

} else if (almost_equals(c_token, "u$nit")) {

PST_unit_plot = TRUE;

c_token++;

}

TERM_PUBLIC void

PSTRICKS_init()

{

PSTRICKS_posx = PSTRICKS_posy = 0;

PSTRICKS_linetype(-1);

fseek(gpoutfile,0,SEEK_SET);

fputs("% GNUPLOT: LaTeX picture using PSTRICKS macros\n", gpoutfile);

PSTRICKS_palette_set = FALSE; /* PM3D palette set? */

}

TERM_PUBLIC void

PSTRICKS_graphics()

{

fputs("\

% Define new PST objects, if not already defined\n\

\\ifx\\PSTloaded\\undefined\n\

\\def\\PSTloaded{t}\n\

\\psset{arrowsize=.01 3.2 1.4 .3}\n\

\\psset{dotsize=.01}\n\

\\catcode`@=11\n\n", gpoutfile);

/* Define line type objects */

fputs("\

\\newpsobject{PST@Border}{psline}{linewidth=.0015,linestyle=solid}\n\

\\newpsobject{PST@Axes}{psline}{linewidth=.0015,linestyle=dotted,dotsep=.004}\n\

\\newpsobject{PST@Solid}{psline}{linewidth=.0015,linestyle=solid}\n\

\\newpsobject{PST@Dashed}{psline}{linewidth=.0015,linestyle=dashed,dash=.01 .01}\n\

\\newpsobject{PST@Dotted}{psline}{linewidth=.0025,linestyle=dotted,dotsep=.008}\n\

\\newpsobject{PST@LongDash}{psline}{linewidth=.0015,linestyle=dashed,dash=.02 .01}\n", gpoutfile);

/* Define point objects */

#ifdef OLD_PST

/* PSTricks version 0.91 had x and diamond dot types */

fputs("\

\\newpsobject(PST@Diamond}{psdots}{linewidth=.001,linestyle=solid,dotstyle=diamond}\n\

\\newpsobject(PST@Filldiamond}{psdots}{linewidth=.001,linestyle=solid,dotstyle=diamond*}\n\

\\newpsobject{PST@Cross}{psdots}{linewidth=.001,linestyle=solid,dotstyle=x}\n", gpoutfile);

#else

/* Newer versions use rotated plus and square to get the x and diamond dots */

fputs("\

\\newpsobject{PST@Diamond}{psdots}{linewidth=.001,linestyle=solid,dotstyle=square,dotangle=45}\n\

\\newpsobject{PST@Filldiamond}{psdots}{linewidth=.001,linestyle=solid,dotstyle=square*,dotangle=45}\n\

\\newpsobject{PST@Cross}{psdots}{linewidth=.001,linestyle=solid,dotstyle=+,dotangle=45}\n", gpoutfile);

#endif

fputs("\

\\newpsobject{PST@Plus}{psdots}{linewidth=.001,linestyle=solid,dotstyle=+}\n\

\\newpsobject{PST@Square}{psdots}{linewidth=.001,linestyle=solid,dotstyle=square}\n\

\\newpsobject{PST@Circle}{psdots}{linewidth=.001,linestyle=solid,dotstyle=o}\n\

\\newpsobject{PST@Triangle}{psdots}{linewidth=.001,linestyle=solid,dotstyle=triangle}\n\

\\newpsobject{PST@Pentagon}{psdots}{linewidth=.001,linestyle=solid,dotstyle=pentagon}\n\

\\newpsobject{PST@Fillsquare}{psdots}{linewidth=.001,linestyle=solid,dotstyle=square*}\n\

\\newpsobject{PST@Fillcircle}{psdots}{linewidth=.001,linestyle=solid,dotstyle=*}\n\

\\newpsobject{PST@Filltriangle}{psdots}{linewidth=.001,linestyle=solid,dotstyle=triangle*}\n\

\\newpsobject{PST@Fillpentagon}{psdots}{linewidth=.001,linestyle=solid,dotstyle=pentagon*}\n", gpoutfile);

/* Define arrow object */

fputs("\

\\newpsobject{PST@Arrow}{psline}{linewidth=.001,linestyle=solid}\n\

\\catcode`@=12\n\n\

\\fi\n", gpoutfile);

/* Set the scaled plot size, if it's not a unit plot */

if (!PST_unit_plot) {

fputs("\\psset{unit=5.0in,xunit=5.0in,yunit=3.0in}\n", gpoutfile);

}

/* HBB 20001027: fix bounding box bug by letting the currently

* active 'size' and 'offset' setting influence the area used by

* the picture environment */

fprintf(gpoutfile, "\

\\pspicture(%f,%f)(%f,%f)\n\

\\ifx\\nofigs\\undefined\n\

\\catcode`@=11\n\n",

xoffset,

yoffset,

(xoffset + xsize),

(yoffset + ysize)

);

}

TERM_PUBLIC void

PSTRICKS_text()

{

PSTRICKS_endline();

fputs("\

\\catcode`@=12\n\

\\fi\n\

\\endpspicture\n", gpoutfile);

}

TERM_PUBLIC void

PSTRICKS_linetype(int linetype)

{

PSTRICKS_endline();

if (linetype >= PSTRICKS_NUMLINES - 2)

linetype %= (PSTRICKS_NUMLINES - 2);

if (linetype < -2)

linetype = LT_BLACK;

PSTRICKS_type = linetype;

}

TERM_PUBLIC void

PSTRICKS_move(unsigned int x, unsigned int y)

{

PSTRICKS_endline();

PSTRICKS_posx = x / PSTRICKS_XMAX;

PSTRICKS_posy = y / PSTRICKS_YMAX;

}

TERM_PUBLIC void

PSTRICKS_point(unsigned int x, unsigned int y, int number)

{

PSTRICKS_move(x, y);

/* Print the character defined by 'number'; number < 0 means

to use a dot, otherwise one of the defined points. */

if (number < 0) {

fprintf(gpoutfile, "\\qdisk(%.4f,%.4f){%.4f}\n",

x / PSTRICKS_XMAX,

y / PSTRICKS_YMAX,

PSTRICKS_TINY_DOT);

} else {

fprintf(gpoutfile, "%s(%.4f,%.4f)\n",

PSTRICKS_points[number % PSTRICKS_POINT_TYPES],

x / PSTRICKS_XMAX,

y / PSTRICKS_YMAX);

}

TERM_PUBLIC void

PSTRICKS_vector(unsigned ux, unsigned uy)

{

if (!PSTRICKS_inline) {

PSTRICKS_inline = TRUE;

/* Start a new line. This depends on line type */

fprintf(gpoutfile, "%s(%.4f,%.4f)\n",

PSTRICKS_lines[PSTRICKS_type + 2],

PSTRICKS_posx, PSTRICKS_posy);

PSTRICKS_linecount = 1;

} else {

* Even though we are in middle of a path,

* we may want to start a new path command.

* If they are too long then latex will choke.

if (PSTRICKS_linecount++ >= PSTRICKS_LINEMAX) {

/* fprintf(gpoutfile, "\n"); */

fprintf(gpoutfile, "%s(%.4f,%.4f)\n",

PSTRICKS_lines[PSTRICKS_type + 2],

PSTRICKS_posx, PSTRICKS_posy);

PSTRICKS_linecount = 1;

}

PSTRICKS_posx = ux / PSTRICKS_XMAX;

PSTRICKS_posy = uy / PSTRICKS_YMAX;

fprintf(gpoutfile, "(%.4f,%.4f)\n", PSTRICKS_posx, PSTRICKS_posy);

}

static void

PSTRICKS_endline()

{

if (PSTRICKS_inline) {

putc('\n', gpoutfile);

PSTRICKS_inline = FALSE;

}

TERM_PUBLIC void

PSTRICKS_arrow(

unsigned int sx, unsigned int sy,

unsigned int ex, unsigned int ey,

int head)

{

fprintf(gpoutfile, "\\PST@Arrow%s(%.4f,%.4f)(%.4f,%.4f)\n",

head ? "{->}" : "",

sx / PSTRICKS_XMAX,

sy / PSTRICKS_YMAX,

ex / PSTRICKS_XMAX,

ey / PSTRICKS_YMAX);

PSTRICKS_posx = ex / PSTRICKS_XMAX;

PSTRICKS_posy = ey / PSTRICKS_YMAX;

}

* A really ugly hack!!!

* This function takes an input string and hacks it up. If the

* input string starts with a number, it converts the number into a

* TeX style number including exponential notation. Thus, if

* the input is the string "3.14159e3 is a number", then

* the output is "$3.14159\cdot 10^{3}$ is a number", so that TeX

* will produce something nice.

* This is basically meant for producing axis labels that look nice.

* What a hack!

static char *

PSTRICKS_hack_text(const char *s)

{

double value;

char *ends;

static char hack[BUFSIZ];

* Does the string start with a number?

value = strtod(s, &ends);

(void)value;

if (s == ends) {

* This doesn't start a number, so just copy the string over

strcpy(hack, s);

} else {

char *ptr;

* We have a number! Check to see if the number

* is in scientific notation

safe_strncpy(hack, s, ends - s + 1);

/* hack[ends - s] = '\0'; */

ptr = strchr(hack, 'e');

if (ptr == NULL) {

ptr = strchr(hack, 'E');

}

if (ptr != NULL) {

* Exponential notation! Let's get the mantissa and exponent separately

double man_val;

int expo_val;

*ptr = NUL;

man_val = atof(hack);

expo_val = atoi(ptr + 1);

if (man_val == 0) {

sprintf(hack, "0");

} else if (man_val == 1) {

sprintf(hack, "$10^{%d}$", expo_val);

} else if (man_val == (int) man_val) {

if (expo_val == 1) {

sprintf(hack, "$%d$", (int) man_val);

} else {

sprintf(hack, "$%d \\times 10^{%d}$", (int) man_val, expo_val);

}

} else {

if (expo_val == 1) {

sprintf(hack, "$%f$", man_val);

} else {

sprintf(hack, "$%f \\times 10^{%d}$", man_val, expo_val);

}

* Copy anything that's left of the string

strcat(hack, ends);

}

return hack;

}

TERM_PUBLIC void

PSTRICKS_put_text(unsigned int x, unsigned int y, const char str[])

{

PSTRICKS_endline();

/* Skip this if the string is empty */

if (strlen(str) > 0) {

fputs("\\rput", gpoutfile);

/* Set justification */

switch (PSTRICKS_justify) {

case LEFT:

fputs("[l]", gpoutfile);

break;

case CENTRE:

break;

case RIGHT:

fputs("[r]", gpoutfile);

break;

}

/* Set text angle */

switch (PSTRICKS_angle) {

case 0:

break;

case 1:

fputs("{L}", gpoutfile);

break;

}

/* Set reference position and text */

fprintf(gpoutfile, "(%.4f,%.4f)",

x / PSTRICKS_XMAX,

y / PSTRICKS_YMAX);

if (PST_hack_text) {

char *hack;

/* Hack leading numbers to something nice for TeX */

hack = PSTRICKS_hack_text(str);

fprintf(gpoutfile, "{%s}\n", hack);

} else {

fprintf(gpoutfile, "{%s}\n", str);

}

TERM_PUBLIC int

PSTRICKS_justify_text(enum JUSTIFY mode)

{

PSTRICKS_justify = mode;

return (TRUE);

}

TERM_PUBLIC int

PSTRICKS_text_angle(int ang)

{

PSTRICKS_angle = (ang ? 1 : 0);

return (TRUE);

}

TERM_PUBLIC void

PSTRICKS_reset()

{

PSTRICKS_endline();

PSTRICKS_posx = PSTRICKS_posy = 0;

}

TERM_PUBLIC int

PSTRICKS_make_palette (t_sm_palette *palette)

{

/* Query to determine palette size */

if (palette==NULL) {

return PSTRICKS_palette_size;

}

if (PSTRICKS_palette_set == FALSE) {

int i;

/* Create new palette */

PSTRICKS_palette_set = TRUE;

if (sm_palette.colorMode == SMPAL_COLOR_MODE_GRAY) {

/* Grey palette */

for (i=0; i < sm_palette.colors; i++) {

double g = i * 1.0 / (sm_palette.colors - 1);

g = 1e-3 * (int)(g * 1000); /* round to 3 digits to use %g below */

fprintf(gpoutfile, "\\newgray{PST@COLOR%d}{%g}\n", i, g);

}

} else

if (sm_palette.colorMode == SMPAL_COLOR_MODE_RGB) {

/* Color palette */

double r, g, b;

for (i=0; i < sm_palette.colors; i++) {

/* round to 3 digits to avoid sth like 1e-7 in %g below */

r = 1e-3 * (int)(palette->color[i].r * 1000);

g = 1e-3 * (int)(palette->color[i].g * 1000);

b = 1e-3 * (int)(palette->color[i].b * 1000);

fprintf(gpoutfile, "\\newrgbcolor{PST@COLOR%d}{%g %g %g}\n", i, r, g, b);

}

/* use the following macro to shorten the file size */

fprintf(gpoutfile, "\\def\\polypmIIId#1{\\pspolygon[linestyle=none,fillstyle=solid,fillcolor=PST@COLOR#1]}\n\n");

return 0;

}

TERM_PUBLIC void

PSTRICKS_set_color (t_colorspec *colorspec)

{

int new_color;

double gray = colorspec->value;

if (colorspec->type != TC_FRAC)

return;

new_color = (gray <=0) ? 0 : (int)(gray*sm_palette.colors);

if (new_color >= PSTRICKS_palette_size)

new_color = PSTRICKS_palette_size - 1;

if (PSTRICKS_palette_set == FALSE) {

fprintf(stderr, "pstricks: Palette used before set!\n");

}

#ifdef PSTRICKS_SHORTER_FILE

PSTRICKS_color = new_color;

#else

sprintf(PSTRICKS_color_str, "PST@COLOR%d", new_color);

#endif

}

TERM_PUBLIC void

PSTRICKS_filled_polygon (int points, gpiPoint *corners)

{

int i;

#ifdef PSTRICKS_SHORTER_FILE

/* using a macro for an abbreviation */

fprintf(gpoutfile, "\\polypmIIId{%d}", PSTRICKS_color);

#else

fprintf(gpoutfile, "\\pspolygon[linestyle=none,fillstyle=solid,fillcolor=%s]", PSTRICKS_color_str);

#endif

for (i=0; i < points; i++) {

if (i % 8 == 7) /* up to 8 corners per line */

fprintf(gpoutfile, "\n");

fprintf(gpoutfile,"(%.4g,%.4g)", corners[i].x/PSTRICKS_XMAX, corners[i].y/PSTRICKS_YMAX);

}

fprintf(gpoutfile, "\n");

}

#endif /* TERM_BODY */

#ifdef TERM_TABLE

TERM_TABLE_START(pstricks_driver)

"pstricks", "LaTeX picture environment with PSTricks macros",

PSTRICKS_XMAX, PSTRICKS_YMAX, PSTRICKS_VCHAR, PSTRICKS_HCHAR,

PSTRICKS_VTIC, PSTRICKS_HTIC, PSTRICKS_options, PSTRICKS_init, PSTRICKS_reset,

PSTRICKS_text, null_scale, PSTRICKS_graphics, PSTRICKS_move, PSTRICKS_vector,

PSTRICKS_linetype, PSTRICKS_put_text, PSTRICKS_text_angle,

PSTRICKS_justify_text, PSTRICKS_point, PSTRICKS_arrow, set_font_null, 0,

TERM_BINARY /*flags*/, 0 /*suspend*/, 0 /*resume*/, 0 , 0

#ifdef USE_MOUSE

, 0, 0, 0, 0, 0

#endif

, PSTRICKS_make_palette, 0, PSTRICKS_set_color, PSTRICKS_filled_polygon

TERM_TABLE_END(pstricks_driver)

#undef LAST_TERM

#define LAST_TERM pstricks_driver

#endif /* TERM_TABLE */

#endif /* TERM_PROTO_ONLY */

#ifdef TERM_HELP

START_HELP(pstricks)

"1 pstricks",

"?commands set terminal pstricks",

"?set terminal pstricks",

"?set term pstricks",

"?terminal pstricks",

"?term pstricks",

"?pstricks",

" The `pstricks` driver is intended for use with the \"pstricks.sty\" macro",

" package for LaTeX. It is an alternative to the `eepic` and `latex` drivers.",

" You need \"pstricks.sty\", and, of course, a printer that understands",

" PostScript, or a converter such as Ghostscript.",

"",

" PSTricks is available via anonymous ftp from the /pub directory at",

" Princeton.edu. This driver definitely does not come close to using the full",

" capability of the PSTricks package.",

"",

" Syntax:",

" set terminal pstricks {hacktext | nohacktext} {unit | nounit}",

"",

" The first option invokes an ugly hack that gives nicer numbers; the second",

" has to do with plot scaling. The defaults are `hacktext` and `nounit`."

END_HELP(pstricks)

#endif /* TERM_HELP */

gnuplot-old/term/pstricks.trm at origin · gnuplot/gnuplot-old · GitHub

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