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gnuplot_3_5.lha
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termpstricks.trm
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1993-09-16
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/*
* $Id: pstricks.trm%v 3.50 1993/07/09 05:35:24 woo Exp $
*/
/* GNUPLOT - pstricks.trm */
/*
* Copyright (C) 1990 - 1993
*
* 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 modified code. Modifications are to be distributed
* as patches to released version.
*
* This software is provided "as is" without express or implied warranty.
*
* 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.
*
* send your comments or suggestions to (info-gnuplot@dartmouth.edu).
*
*/
/*
* 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 comes definitely does not come close to
* using the full capability of the PSTricks package.
*/
#define PSTRICKS_PTS_PER_INCH (72.27)
#define DOTS_PER_INCH (300) /* resolution of printer we expect to use */
#define PSTRICKS_UNIT (PSTRICKS_PTS_PER_INCH/DOTS_PER_INCH) /* dot size in pt */
/* 5 inches wide by 3 inches high (default) */
#define PSTRICKS_XMAX (5*DOTS_PER_INCH) /* (PSTRICKS_PTS_PER_INCH/PSTRICKS_UNIT*5.0) */
#define PSTRICKS_YMAX (3*DOTS_PER_INCH) /* (PSTRICKS_PTS_PER_INCH/PSTRICKS_UNIT*3.0) */
#define PSTRICKS_HTIC (5*DOTS_PER_INCH/72) /* (5./PSTRICKS_UNIT) */
#define PSTRICKS_VTIC (5*DOTS_PER_INCH/72) /* (5./PSTRICKS_UNIT) */
#define PSTRICKS_HCHAR (DOTS_PER_INCH*53/10/72) /* (5.3/PSTRICKS_UNIT) */
#define PSTRICKS_VCHAR (DOTS_PER_INCH*11/72) /* (11./PSTRICKS_UNIT) */
static unsigned int PSTRICKS_posx;
static unsigned int PSTRICKS_posy;
enum JUSTIFY PSTRICKS_justify = LEFT;
static int PSTRICKS_angle = 0;
#define PSTRICKS_TINY_DOT 0.25 /* A tiny dot, in points */
/* POINTS */
#define PSTRICKS_POINT_TYPES 12 /* we supply more point types */
static char GPFAR * GPFAR PSTRICKS_points[] =
{
"\\psset{dotstyle=square, dotangle=45}",
"\\psset{dotstyle=+}",
"\\psset{dotstyle=square}",
"\\psset{dotstyle=+, dotangle=45}",
"\\psset{dotstyle=triangle}",
"\\psset{dotstyle=pentagon}",
"\\psset{dotstyle=o}",
"\\psset{dotstyle=square*, dotangle=45}",
"\\psset{dotstyle=square*}",
"\\psset{dotstyle=triangle*}",
"\\psset{dotstyle=pentagon*}",
"\\psset{dotstyle=*}",
};
/* LINES */
#define PSTRICKS_NUMLINES 6 /* number of linetypes below */
static char GPFAR * GPFAR PSTRICKS_lines[] =
{
"\\psset{linewidth=0.35pt,linestyle=solid}", /* -2 border */
"\\psset{linewidth=0.3pt,linestyle=dotted,dotsep=1pt}", /* -1 axes, grid */
"\\psset{linewidth=0.35pt,linestyle=solid}", /* 0 solid thin */
"\\psset{linewidth=0.35pt,linestyle=dashed,dash=5pt 3pt}", /* 1 dashed */
"\\psset{linewidth=0.35pt,linestyle=dotted,dotsep=3pt}", /* 2 dotted */
"\\psset{linewidth=0.35pt,linestyle=dashed,dash=10pt 3pt}" /* 3 long dash */
};
static int PSTRICKS_type; /* current line type */
static TBOOLEAN PSTRICKS_inline = FALSE;/* are we in the middle of a line */
static void PSTRICKS_endline(); /* terminate any line in progress */
static int PSTRICKS_linecount = 0; /* number of points in line so far */
#define PSTRICKS_LINEMAX 50 /* max value for linecount */
PSTRICKS_init()
{
PSTRICKS_posx = PSTRICKS_posy = 0;
PSTRICKS_linetype(-1);
fprintf(outfile, "%% GNUPLOT: LaTeX picture using PSTRICKS macros\n");
fprintf(outfile, "\\psset{unit=%fpt}\n", PSTRICKS_UNIT);
fprintf(outfile, "\\psset{arrowsize=3pt 3.2 1.4 .3}\n");
}
PSTRICKS_scale(xs, ys)
double xs, ys; /* scaling factors */
{
register struct termentry *t = &term_tbl[term];
/* we change the table for use in graphics.c and PSTRICKS_graphics */
t->xmax = (unsigned int) (PSTRICKS_XMAX * xs);
t->ymax = (unsigned int) (PSTRICKS_YMAX * ys);
return (TRUE);
}
PSTRICKS_graphics()
{
register struct termentry *t = &term_tbl[term];
fprintf(outfile, "\\begin{pspicture}(0,0)(%d,%d)\n", t->xmax, t->ymax);
fprintf(outfile, "\\tenrm\n");
}
PSTRICKS_text()
{
PSTRICKS_endline();
fprintf(outfile, "\\end{pspicture}\n");
}
PSTRICKS_linetype(linetype)
int linetype;
{
PSTRICKS_endline();
if (linetype >= PSTRICKS_NUMLINES - 2)
linetype %= (PSTRICKS_NUMLINES - 2);
PSTRICKS_type = linetype;
}
PSTRICKS_move(x, y)
unsigned int x, y;
{
PSTRICKS_endline();
PSTRICKS_posx = x;
PSTRICKS_posy = y;
}
PSTRICKS_point(x, y, number) /* version of line_and_point */
unsigned int x, y;
int number; /* type of point */
{
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(outfile, "\\qdisk(%d,%d){%fpt}\n",
x, y, PSTRICKS_TINY_DOT);
} else {
fprintf(outfile, "%s\\psdots(%d,%d)\n",
PSTRICKS_points[number % PSTRICKS_POINT_TYPES],
x, y);
}
}
PSTRICKS_vector(ux, uy)
unsigned int ux, uy;
{
if (!PSTRICKS_inline) {
PSTRICKS_inline = TRUE;
/* Start a new line. This depends on line type */
fprintf(outfile, "%s\\psline(%u,%u)",
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(outfile, "\n");
fprintf(outfile, "%s\\psline(%u,%u)",
PSTRICKS_lines[PSTRICKS_type + 2],
PSTRICKS_posx, PSTRICKS_posy);
PSTRICKS_linecount = 1;
}
}
fprintf(outfile, "(%u,%u)", ux, uy);
PSTRICKS_posx = ux;
PSTRICKS_posy = uy;
}
static void
PSTRICKS_endline()
{
if (PSTRICKS_inline) {
fprintf(outfile, "\n");
PSTRICKS_inline = FALSE;
}
}
PSTRICKS_arrow(sx, sy, ex, ey, head)
int sx, sy, ex, ey;
TBOOLEAN head;
{
fprintf(outfile, "\\psline[linestyle=solid]%s(%d,%d)(%d,%d)\n",
head ? "{->}" : "",
sx, sy, ex, ey);
PSTRICKS_posx = ex;
PSTRICKS_posy = ey;
}
PSTRICKS_put_text(x, y, str)
int x, y; /* reference point of string */
char str[]; /* the text */
{
PSTRICKS_endline();
fprintf(outfile, "\\rput");
/* Set justification */
switch (PSTRICKS_justify) {
case LEFT:
fprintf(outfile, "[l]");
break;
case CENTRE:
break;
case RIGHT:
fprintf(outfile, "[r]");
break;
}
/* Set text angle */
switch (PSTRICKS_angle) {
case 0:
break;
case 1:
fprintf(outfile, "{L}");
break;
}
/* Set reference position and text */
fprintf(outfile, "(%d,%d){%s}\n", x, y, str);
}
int
PSTRICKS_justify_text(mode)
enum JUSTIFY mode;
{
PSTRICKS_justify = mode;
return (TRUE);
}
int
PSTRICKS_text_angle(angle)
int angle;
{
PSTRICKS_angle = angle;
return (TRUE);
}
PSTRICKS_reset()
{
PSTRICKS_endline();
PSTRICKS_posx = PSTRICKS_posy = 0;
}