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- /* GNUPLOT - eepic.trm */
- /*
- * Copyright (C) 1990
- *
- * 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 EEPIC macros for LaTeX.
- *
- * AUTHORS
- * David Kotz
- *
- * send your comments or suggestions to (pixar!info-gnuplot@sun.com).
- *
- */
- /*
- * This file contains the eepic terminal driver, intended for use with the
- * eepic.sty macro package for LaTeX. This is an alternative to the
- * latex driver. You need eepic.sty, epic.sty, and a printer driver that
- * supports the tpic \specials.
- *
- * Although dotted and dashed lines are possible with EEPIC, and are
- * tempting, they do not work well for high-sample-rate curves, mushing
- * the dashes all together into a solid line. For now anyway, the EEPIC
- * driver will have only solid lines. Anyone got a solution?
- *
- * LATEX must also be defined.
- */
-
- #define EEPIC_PTS_PER_INCH (72.27)
- #define DOTS_PER_INCH (300) /* resolution of printer we expect to use */
- #define EEPIC_UNIT (EEPIC_PTS_PER_INCH/DOTS_PER_INCH) /* dot size in pt */
-
- /* 5 inches wide by 3 inches high (default) */
- #define EEPIC_XMAX (5*DOTS_PER_INCH) /* (EEPIC_PTS_PER_INCH/EEPIC_UNIT*5.0) */
- #define EEPIC_YMAX (3*DOTS_PER_INCH) /* (EEPIC_PTS_PER_INCH/EEPIC_UNIT*3.0) */
-
- #define EEPIC_HTIC (5*DOTS_PER_INCH/72) /* (5./EEPIC_UNIT) */
- #define EEPIC_VTIC (5*DOTS_PER_INCH/72) /* (5./EEPIC_UNIT) */
- #define EEPIC_HCHAR (DOTS_PER_INCH*53/10/72) /* (5.3/EEPIC_UNIT) */
- #define EEPIC_VCHAR (DOTS_PER_INCH*11/72) /* (11./EEPIC_UNIT) */
-
- static unsigned int EEPIC_posx;
- static unsigned int EEPIC_posy;
- enum JUSTIFY eepic_justify=LEFT;
- static int eepic_angle=0;
-
- /* for DOTS point style */
- #define EEPIC_TINY_DOT "\\rule{.1pt}{.1pt}"
-
- /* POINTS */
- #define EEPIC_POINT_TYPES 12 /* we supply more point types */
- static char *EEPIC_points[] = {
- "\\makebox(0,0){$\\Diamond$}",
- "\\makebox(0,0){$+$}",
- "\\makebox(0,0){$\\Box$}",
- "\\makebox(0,0){$\\times$}",
- "\\makebox(0,0){$\\triangle$}",
- "\\makebox(0,0){$\\star$}",
- "\\circle{12}", "\\circle{18}", "\\circle{24}",
- "\\circle*{12}", "\\circle*{18}", "\\circle*{24}"
- };
-
- /* LINES */
- #define EEPIC_NUMLINES 5 /* number of linetypes below */
- static char *EEPIC_lines[] = {
- "\\thicklines \\path", /* -2 border */
- "\\thinlines \\drawline[-50]", /* -1 axes */
- "\\thinlines \\path", /* 0 solid thin */
- "\\thicklines \\path", /* 1 solid thick */
- "\\Thicklines \\path", /* 2 solid Thick */
- };
- /* These are other possibilities
- "\\thinlines \\dottedline{30}",
- "\\thinlines \\drawline[-30]",
- "\\thinlines \\dottedline{60}",
- "\\thinlines \\drawline[-60]",
- "\\thinlines \\dashline[-10]{20}[6]"
- */
- static int EEPIC_type; /* current line type */
- static BOOLEAN EEPIC_inline = FALSE; /* are we in the middle of a line */
- static void EEPIC_endline(); /* terminate any line in progress */
- static int EEPIC_linecount = 0; /* number of points in line so far */
- #define EEPIC_LINEMAX 50 /* max value for linecount */
-
- /* ARROWS */
- /* we use the same code as for LATEX */
- static void best_latex_arrow(); /* figure out the best arrow */
-
- EEPIC_init()
- {
- EEPIC_posx = EEPIC_posy = 0;
- EEPIC_linetype(-1);
- fprintf(outfile, "%% GNUPLOT: LaTeX picture using EEPIC macros\n");
- fprintf(outfile, "\\setlength{\\unitlength}{%fpt}\n", EEPIC_UNIT);
- }
-
-
- EEPIC_scale(xs, ys)
- float xs, ys; /* scaling factors */
- {
- register struct termentry *t = &term_tbl[term];
-
- /* we change the table for use in graphics.c and EEPIC_graphics */
- t->xmax = (unsigned int)(EEPIC_XMAX * xs);
- t->ymax = (unsigned int)(EEPIC_YMAX * ys);
-
- return(TRUE);
- }
-
- EEPIC_graphics()
- {
- register struct termentry *t = &term_tbl[term];
-
- fprintf(outfile, "\\begin{picture}(%d,%d)(0,0)\n", t->xmax, t->ymax);
- fprintf(outfile, "\\tenrm\n");
- }
-
-
- EEPIC_text()
- {
- EEPIC_endline();
- fprintf(outfile, "\\end{picture}\n");
- }
-
-
- EEPIC_linetype(linetype)
- int linetype;
- {
- EEPIC_endline();
-
- if (linetype >= EEPIC_NUMLINES-2)
- linetype %= (EEPIC_NUMLINES-2);
-
- EEPIC_type = linetype;
- }
-
-
-
- EEPIC_move(x,y)
- unsigned int x,y;
- {
- EEPIC_endline();
-
- EEPIC_posx = x;
- EEPIC_posy = y;
- }
-
-
- EEPIC_point(x,y, number) /* version of line_and_point */
- unsigned int x,y;
- int number; /* type of point */
- {
- EEPIC_move(x,y);
-
- /* Print the character defined by 'number'; number < 0 means
- to use a dot, otherwise one of the defined points. */
- fprintf(outfile, "\\put(%d,%d){%s}\n", x, y,
- (number < 0 ? EEPIC_TINY_DOT
- : EEPIC_points[number % EEPIC_POINT_TYPES]));
- }
-
-
- EEPIC_vector(ux,uy)
- unsigned int ux,uy;
- {
- if (!EEPIC_inline) {
- EEPIC_inline = TRUE;
-
- /* Start a new line. This depends on line type */
- fprintf(outfile, "%s(%u,%u)",
- EEPIC_lines[EEPIC_type+2],
- EEPIC_posx, EEPIC_posy);
- EEPIC_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 (EEPIC_linecount++ >= EEPIC_LINEMAX) {
- fprintf(outfile, "\n");
- fprintf(outfile, "%s(%u,%u)",
- EEPIC_lines[EEPIC_type+2],
- EEPIC_posx, EEPIC_posy);
- EEPIC_linecount = 1;
- }
- }
- fprintf(outfile, "(%u,%u)", ux,uy);
- EEPIC_posx = ux;
- EEPIC_posy = uy;
- }
-
- static void
- EEPIC_endline()
- {
- if (EEPIC_inline) {
- fprintf(outfile, "\n");
- EEPIC_inline = FALSE;
- }
- }
-
-
- EEPIC_arrow(sx,sy, ex,ey)
- int sx,sy, ex,ey;
- {
- best_latex_arrow(sx,sy, ex,ey, 2); /* call latex routine */
-
- EEPIC_posx = ex;
- EEPIC_posy = ey;
- }
-
-
- EEPIC_put_text(x, y, str)
- int x,y; /* reference point of string */
- char str[]; /* the text */
- {
- EEPIC_endline();
-
- fprintf(outfile, "\\put(%d,%d)",x,y);
- switch(eepic_angle) {
- case 0: {
- switch(eepic_justify) {
- case LEFT: {
- fprintf(outfile,
- "{\\makebox(0,0)[l]{%s}}\n", str);
- break;
- }
- case CENTRE: {
- fprintf(outfile,
- "{\\makebox(0,0){%s}}\n", str);
- break;
- }
- case RIGHT: {
- fprintf(outfile,
- "{\\makebox(0,0)[r]{%s}}\n", str);
- break;
- }
- }
- break;
- }
- case 1: { /* put text in a short stack */
- switch(eepic_justify) {
- case LEFT: {
- fprintf(outfile,
- "{\\makebox(0,0)[lb]{\\shortstack{%s}}}\n", str);
- break;
- }
- case CENTRE: {
- fprintf(outfile,
- "{\\makebox(0,0)[l]{\\shortstack{%s}}}\n", str);
- break;
- }
- case RIGHT: {
- fprintf(outfile,
- "{\\makebox(0,0)[lt]{\\shortstack{%s}}}\n", str);
- break;
- }
- }
- break;
- }
- }
- }
-
-
-
- int EEPIC_justify_text(mode)
- enum JUSTIFY mode;
- {
- eepic_justify = mode;
- return (TRUE);
- }
-
- int EEPIC_text_angle(angle)
- int angle;
- {
- /* we can't really write text vertically, but this will
- put the ylabel centred at the left of the plot, and
- then we'll make a \shortstack */
- eepic_angle = angle;
- return (TRUE);
- }
-
- EEPIC_reset()
- {
- EEPIC_endline();
- EEPIC_posx = EEPIC_posy = 0;
- }
-