Usenet 1994 October/usenetsourcesnewsgroupsinfomagicoctober1994disk2.iso/unix/volume27/transfig-2.1.8/part07

Text File | 1993-10-05 | 64KB | 2,326 lines

Newsgroups: comp.sources.unix
From: [e-mail] (Brian V. Smith)
Subject: v27i061: transfig-2.1.8 - a set of tools for creating TeX documents with graphics, Part07/07
References: <[e-mail]>
Sender: [e-mail]
Approved: [e-mail]

Submitted-By: [e-mail] (Brian V. Smith)
Posting-Number: Volume 27, Issue 61
Archive-Name: transfig-2.1.8/part07

#! /bin/sh
# This is a shell archive.  Remove anything before this line, then unpack
# it by saving it into a file and typing "sh file".  To overwrite existing
# files, type "sh file -c".  You can also feed this as standard input via
# unshar, or by typing "sh <file", e.g..  If this archive is complete, you
# will see the following message at the end:
#        "End of archive 7 (of 7)."
# Contents:  fig2dev/dev/genepic.c fig2dev/dev/genps.c
# Wrapped by [e-mail] on Fri Oct  1 14:55:51 1993
PATH=/bin:/usr/bin:/usr/ucb ; export PATH
if test -f 'fig2dev/dev/genepic.c' -a "${1}" != "-c" ; then
  echo shar: Will not clobber existing file \"'fig2dev/dev/genepic.c'\"
else
echo shar: Extracting \"'fig2dev/dev/genepic.c'\" \(30473 characters\)
sed "s/^X//" >'fig2dev/dev/genepic.c' <<'END_OF_FILE'
X/*
X * TransFig: Facility for Translating Fig code
X * Copyright (c) 1985 Supoj Sutantavibul
X * Copyright (c) 1991 Micah Beck
X *
X * Permission to use, copy, modify, distribute, and sell this software and its
X * documentation for any purpose is hereby granted without fee, provided that
X * the above copyright notice appear in all copies and that both that
X * copyright notice and this permission notice appear in supporting
X * documentation. The authors make no representations about the suitability
X * of this software for any purpose.  It is provided "as is" without express
X * or implied warranty.
X *
X * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
X * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
X * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
X * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
X * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
X * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
X * PERFORMANCE OF THIS SOFTWARE.
X *
X */
X
X/*
X * genepic.c: (E)EPIC driver for fig2dev
X *
X * Converted from fig2epic 5/89 by Micah Beck
X */
X/*==================================================================*/
X/*    fig2epic (Fig to EPIC converter)                 */
X/*         Version 1.1d <March 30, 1988>                */
X/*                                    */
X/*    Written by Conrad Kwok, Division of Computer Science, UCD   */
X/*                                    */
X/*    Permission is granted for freely distribution of this file  */
X/*        provided that this message is included.            */
X/*==================================================================*/
X
X/*====================================================================
X  Changes:
X
X  Version 1.0d:<September 18, 1988>
X  1. Add the option -P for Page mode. Two more configurable parameter---
X     Preamble and Postamble.
X
X  Version 1.1a: <January 18, 1989>
X  1. Fix the bug in closed control splines. The routine convertCS(p) is being
X     called once too often.
X
X  2. Add supports to Variable line width
X  3. Add supports to black, white or shaded area fill.
X
X  Version 1.1b: <Febrary 2, 1989>
X  1. Draw outline for area-filled figures when using dvips.
X
X  Version 1.1c: <Febrary 7, 1989>
X  1. Supports all 5 gray level in area fill.
X
X  Version 1.1d: <March 30, 1989>
X  1. Add supports for Gould NP1 (Bsd4.3) (Recieve the changes from
X        mcvax!presto.irisa.fr![e-mail]. Sorry
X        I don't have his/her name)
X  2. Add exit(0) before exit in the main.
X====================================================================*/
X
X
X#include <stdio.h>
X#include <math.h>
X#include <varargs.h>
X#include <ctype.h>
X#include "object.h"
X#include "fig2dev.h"
X#include "texfonts.h"
X#include "pi.h"
X
X#ifdef MSDOS
X#define getopt egetopt
X#define M_PI 3.14159265358979324
X#endif
X
X#define DrawOutLine
X#ifdef DrawOutLine
Xint OutLine=0;
X#endif
X
X#define TopCoord 840        /* 10.5 in * 80 (DPI)            */
X                /* Actually, it can be any value */
X#define PtPerLine 3
X#define ThinLines 0
X#define ThickLines 1
X#define FALSE 0
X#define TRUE 1
X#define Epic 0
X#define EEpic_emu 1
X#define EEpic 2
X#define None 0
X#define SolidLineBox 1
X#define DashLineBox 2
X#define BothBoxType 3
X#define Normal 0
X#define Economic 1
X#define DottedDash 2
X
Xvoid genepic_ctl_spline(), genepic_int_spline();
Xvoid genepic_open_spline(), genepic_closed_spline();
X
X/* Structure for Point with "double" values */
Xstruct fp_struct {
X    double x,y;
X};
X
Xtypedef struct fp_struct FPoint;
X
X/* Local to the file only */
Xstatic int coord_system;
Xstatic int CoordSys = 2;
Xstatic double Threshold;
Xstatic int DPI;
Xstatic int CurWidth = 0;
Xstatic int LineStyle = SOLID_LINE;
Xstatic int LLX = 0, LLY = 0;
Xstatic char *LnCmd;
Xstatic int MaxCircleRadius;
Xstatic double DashLen;
Xstatic int PageMode = FALSE;
Xstatic int PatternType=UNFILLED;
Xstatic struct {
X    double mag;
X    int size;
X} ScaleTbl[5] = {
X    { 0.6667, 8 },
X    { 0.75  , 9 },
X    { 0.8333, 10 },
X    { 0.9167, 11 },
X    { 1.0   , 12 }
X};
X
X/* Definition of Keywords for some of the configurable parameter */
Xchar *Tlangkw[] = { /* The order must match the definition of corr. constants */
X    "Epic", "EEpicemu", "EEpic", NULL
X};
X
Xchar *EllCmdkw[] = {
X    "ellipse", "oval", NULL
X};
X
Xchar *EllCmdstr[] = {
X    "\\%s%s{%d}{%d}}\n", "\\%s%s(%d,%d)}\n"
X};
X
Xchar *FillCommands[] = {
X    "", "\\whiten",
X    "\\shade", "\\shade", "\\shade",
X    "\\shade", "\\shade", "\\shade",
X    "\\shade", "\\shade", "\\shade",
X    "\\shade", "\\shade", "\\shade",
X    "\\shade", "\\shade", "\\shade",
X    "\\shade", "\\shade", "\\shade",
X    "\\shade", "\\blacken"
X};
X
X#define TEXT_LINE_SEP '\n'
X/* The following two arrays are used to translate characters which
X   are special to LaTeX into characters that print as one would expect.
X   Note that the <> characters aren't really special LaTeX characters
X   but they will not print as themselves unless one is using a font
X   like tt. */
Xchar latex_text_specials[] = "\\{}><^~$&#_%";
Xchar *latex_text_mappings[] = {
X  "$\\backslash$",
X  "$\\{$",
X  "$\\}$",
X  "$>$",
X  "$<$",
X  "\\^{}",
X  "\\~{}",
X  "\\$",
X  "\\&",
X  "\\#",
X  "\\_",
X  "\\%"};
X
X
X/* Configurable parameters */
Xint LowerLeftX=0, LowerLeftY=0;
Xdouble SegLen = 0.0625; /* inch */
Xint Verbose = FALSE;
Xint TopMargin = 5;
Xint BottomMargin = 10;
Xint DotDist = 5;
Xint LineThick = 2;
Xint TeXLang = EEpic;
Xdouble DashScale=1;
Xint EllipseCmd=0;
Xint UseBox=None;
Xint DashType=Normal;
Xchar *Preamble="\\documentstyle[epic,eepic]{article}\n\\begin{document}\n\\begin{center}\n";
Xchar *Postamble="\\end{center}\n\\end{document}\n";
Xint VarWidth=FALSE;
X
Xvoid genepic_option(opt, optarg)
Xchar opt, *optarg;
X{
X      int loop, i;
X
X        switch (opt) {
X    case 'a':
X        fprintf(stderr, "warning: genepic option -a obsolete");
X        break;
X
X    case 'f':
X        for ( i = 1; i <= MAX_FONT; i++ )
X        if ( !strcmp(optarg, texfontnames[i]) ) break;
X
X        if ( i > MAX_FONT)
X        fprintf(stderr,
X            "warning: non-standard font name %s\n", optarg);
X
X            texfontnames[0] = texfontnames[1] = optarg;
X        break;
X
X        case 'l':
X            LineThick = atoi(optarg);
X            break;
X
X    case 'L':
X        for (loop=0; loop < 3; loop++) {
X            if (stricmp(optarg, Tlangkw[loop]) == 0) break;
X        }
X        TeXLang = loop;
X        break;
X
X
X    case 'm':
X        break;
X
X    case 'P':
X        PageMode = 1;
X        break;
X
X    case 's':
X        font_size = atoi(optarg);
X        if (font_size <= 0 || font_size > MAXFONTSIZE) {
X        fprintf(stderr,
X            "warning: font size %d out of bounds\n", font_size);
X        }
X        break;
X
X        case 'S':
X            loop = atoi(optarg);
X            if (loop < 8 || loop > 12) {
X                put_msg("Scale must be between 8 and 12 inclusively\n");
X                exit(1);
X            }
X            loop -= 8;
X            mag = ScaleTbl[loop].mag;
X            font_size = ScaleTbl[loop].size;
X            break;
X
X        case 'v':
X            Verbose = TRUE;
X            break;
X
X    case 'w':
X    case 'W':
X        VarWidth = opt=='W';
X        break;
X
X    default:
X        put_msg(Err_badarg, opt, "epic");
X        exit(1);
X        break;
X        }
X}
X
Xstatic fconvertCS(fpt)
XFPoint *fpt;
X{
X    if (CoordSys) {
X        fpt->y = TopCoord - fpt->y;
X    }
X    fpt->x -= LLX;
X    fpt->y -= LLY;
X}
X
XconvertCS(pt)
XF_point *pt;
X{
X    if (CoordSys) {
X        pt->y = TopCoord - pt->y;
X    }
X    pt->x -= LLX;
X    pt->y -= LLY;
X}
X
Xvoid genepic_start(objects)
XF_compound *objects;
X{
X    int temp;
X    F_point pt1, pt2;
X    F_arc *arc;
X    F_compound *comp;
X    F_ellipse *ell;
X    F_line *line;
X    F_spline *spl;
X    F_text *text;
X
X    texfontsizes[0] = texfontsizes[1] = TEXFONTSIZE(font_size);
X
X    switch (TeXLang) {
X    case Epic:
X        EllipseCmd = 1; /* Oval */
X        LnCmd = "drawline";
X        break;
X    case EEpic_emu:
X    case EEpic:
X        LnCmd = "path";
X        break;
X    default:
X        put_msg("Program error in main\n");
X        break;
X    }
X    if (PageMode) {
X        fputs(Preamble, stdout);
X    }
X
X    DPI = objects->nwcorner.x;
X    if (DPI <= 0) {
X        put_msg("Resolution has to be positive. Default to 80!\n");
X        DPI = 80;
X    }
X    coord_system = objects->nwcorner.y;
X    switch (coord_system) {
X    case 1:
X        CoordSys = 0;
X        break;
X    case 2:
X        CoordSys = 1;
X        break;
X    default:
X        put_msg("Unknown Coordinate system -- %d\n", coord_system);
X        exit(1);
X    }
X    pt1.x = llx;
X    pt1.y = lly;
X    pt2.x = urx;
X    pt2.y = ury;
X    convertCS(&pt1);
X    convertCS(&pt2);
X    if (pt1.x > pt2.x) {
X        temp = pt1.x;
X        pt1.x = pt2.x;
X        pt2.x = temp;
X    }
X    if (pt1.y > pt2.y) {
X        temp = pt1.y;
X        pt1.y = pt2.y;
X        pt2.y = temp;
X    }
X    LLX = pt1.x - LowerLeftX;
X    LLY = pt1.y - LowerLeftY;
X    if (Verbose) {
X        fprintf(tfp, "%%\n%% Language in use is %s\n%%\n", Tlangkw[TeXLang]);
X    }
X    Threshold = 1.0 / DPI * mag;
X    fprintf(tfp, "\\setlength{\\unitlength}{%.4fin}\n", Threshold);
X    MaxCircleRadius = (int) (40 / 72.27 / Threshold);
X    Threshold = SegLen / Threshold;
X    define_setfigfont(tfp);
X    fprintf(tfp, "\\begin{picture}(%d,%d)(%d,%d)\n",
X           pt2.x-pt1.x, pt2.y-pt1.y + TopMargin + BottomMargin,
X           LowerLeftX, LowerLeftY-BottomMargin);
X}
X
Xvoid genepic_end()
X{
X    fprintf(tfp, "\\end{picture}\n");
X    if (PageMode)
X        fputs(Postamble, stdout);
X}
X
Xstatic set_linewidth(w)
Xint w;
X{
X    int old_width;
X
X    if (w < 0) return;
X    old_width=CurWidth;
X    CurWidth = (w >= LineThick) ? (VarWidth ? w : ThickLines) : ThinLines;
X    if (old_width != CurWidth) {
X    if (CurWidth==ThinLines) {
X        fprintf(tfp, "\\thinlines\n");
X    } else if (VarWidth) {
X        fprintf(tfp, "\\allinethickness{%d}%%\n",w);
X    } else {
X        fprintf(tfp, "\\thicklines\n");
X    }
X    }
X}
X
Xset_pattern(type)
Xint type;
X{
X    static unsigned long patterns[3][32] = {
X    { 0xc0c0c0c0, 0, 0, 0, 0, 0, 0, 0,
X      0xc0c0c0c0, 0, 0, 0, 0, 0, 0, 0,
X      0xc0c0c0c0, 0, 0, 0, 0, 0, 0, 0,
X      0xc0c0c0c0, 0, 0, 0, 0, 0, 0, 0},
X    { 0xcccccccc, 0, 0, 0, 0xcccccccc, 0, 0, 0,
X      0xcccccccc, 0, 0, 0, 0xcccccccc, 0, 0, 0,
X      0xcccccccc, 0, 0, 0, 0xcccccccc, 0, 0, 0,
X      0xcccccccc, 0, 0, 0, 0xcccccccc, 0, 0, 0},
X    { 0x55555555, 0, 0x55555555, 0, 0x55555555, 0, 0x55555555, 0,
X      0x55555555, 0, 0x55555555, 0, 0x55555555, 0, 0x55555555, 0,
X      0x55555555, 0, 0x55555555, 0, 0x55555555, 0, 0x55555555, 0,
X      0x55555555, 0, 0x55555555, 0, 0x55555555, 0, 0x55555555, 0}};
X    int count, loop1, loop2, i;
X
X    if (type <= WHITE_FILL || type >= BLACK_FILL) return;
X    if (type != PatternType) {
X    PatternType=type;
X    i = ((int) PatternType - WHITE_FILL - 1) / 6;
X    fprintf(tfp, "\\texture{");
X    count=0;
X    for (loop1=4; loop1>0;) {
X        for (loop2=8; loop2>0; loop2--)
X        fprintf(tfp, "%lx ", patterns[i][count++]);
X        if (--loop1 > 0)
X        fprintf(tfp, "\n\t");
X        else
X        fprintf(tfp, "}%\n");
X    }
X    }
X}
X
Xvoid genepic_line(line)
XF_line *line;
X{
X    F_point *p, *q;
X    int pt_count = 0, temp;
X    int boxflag = FALSE, llx, lly, urx, ury;
X    double dtemp;
X
X    set_linewidth(line->thickness);
X    set_style(line->style, line->style_val);
X    p = line->points;
X    q = p->next;
X    convertCS(p);
X    if (q == NULL) {
X    fprintf(tfp, "\\drawline(%d,%d)(%d,%d)\n", p->x, p->y, p->x, p->y);
X    return;
X    }
X    if (line->type == T_ARC_BOX) { /* A box with rounded corners */
X      fprintf(stderr, "Arc box not implemented; substituting box.\n");
X      line->type = T_BOX;
X    }
X    if (line->type == T_BOX) {
X    if (Verbose) {
X        fprintf(tfp, "%%\n%% A box\n%%\n");
X    }
X    switch (LineStyle) {
X    case SOLID_LINE:
X        if (UseBox == BothBoxType || UseBox == SolidLineBox) {
X            boxflag = TRUE;
X        }
X        break;
X    case DASH_LINE:
X        if (UseBox == BothBoxType || UseBox == DashLineBox) {
X            boxflag = TRUE;
X        }
X        break;
X    }
X    if (boxflag) {
X        llx = urx = p->x;
X        lly = ury = p->y;
X        while (q != NULL) {
X            convertCS(q);
X            if (q->x < llx) {
X                llx = q->x;
X            } else if (q->x > urx) {
X                urx = q->x;
X            }
X            if (q->y < lly) {
X                lly = q->y;
X            } else if (q->y > ury) {
X                ury = q->y;
X            }
X            q = q->next;
X        }
X        switch(LineStyle) {
X        case SOLID_LINE:
X            fprintf(tfp, "\\put(%d,%d){\\framebox(%d,%d){}}\n",
X                llx, lly, urx-llx, ury-lly);
X            break;
X        case DASH_LINE:
X        temp = (int) ((urx-llx) / DashLen);
X        dtemp = (double) (urx-llx) / temp;
X            fprintf(tfp, "\\put(%d,%d){\\dashbox{%4.3f}(%d,%d){}}\n",
X                llx, lly, dtemp , urx-llx, ury-lly);
X            break;
X        default:
X            put_msg("Program Error! No other line styles allowed.\n");
X            break;
X        }
X        return;
X      }
X    }
X    set_pattern(line->area_fill);
X    convertCS(q);
X    if (line->back_arrow) {
X    draw_arrow_head(q, p, line->back_arrow->ht, line->back_arrow->wid);
X        if (Verbose) fprintf(tfp, "%%\n");
X    }
X    switch (LineStyle) {
X    case SOLID_LINE:
X    if (q->next != NULL && strcmp(LnCmd,"path")==0) {
X        if (line->area_fill < UNFILLED) line->area_fill = UNFILLED;
X        fprintf(tfp, "%s", FillCommands[line->area_fill]);
X    }
X    fprintf(tfp, "\\%s", LnCmd);
X#ifdef DrawOutLine
X    if (line->area_fill != UNFILLED && OutLine == 0) OutLine=1;
X#endif
X    break;
X    case DASH_LINE:
X        if ((TeXLang==Epic || TeXLang ==EEpic_emu) && DashType == Economic) {
X            fprintf(tfp, "\\drawline[-50]");
X        } else {
X        fprintf(tfp, "\\dashline{%4.3f}", DashLen);
X    }
X    break;
X    case DOTTED_LINE:
X    fprintf(tfp, "\\dottedline{%d}", DotDist);
X    break;
X    default:
X    fprintf(stderr,"Unknown Style\n");
X    exit(1);
X    }
X    fprintf(tfp, "(%d,%d)", p->x, p->y);
X    pt_count++;
X    while(q->next != NULL) {
X    if (++pt_count > PtPerLine) {
X        pt_count=1;
X        fprintf(tfp, "\n\t");
X    }
X    fprintf(tfp, "(%d,%d)", q->x, q->y);
X    p=q;
X    q = q->next;
X    convertCS(q);
X    }
X    fprintf(tfp, "(%d,%d)\n", q->x, q->y);
X#ifdef DrawOutLine
X    if (OutLine == 1) {
X    OutLine=0;
X    fprintf(tfp, "\\%s", LnCmd);
X    p=line->points;
X    pt_count=0;
X    q=p->next;
X    fprintf(tfp, "(%d,%d)", p->x, p->y);
X    pt_count++;
X    while(q->next != NULL) {
X        if (++pt_count > PtPerLine) {
X        pt_count=1;
X        fprintf(tfp, "\n\t");
X        }
X        fprintf(tfp, "(%d,%d)", q->x, q->y);
X        p=q;
X        q = q->next;
X    }
X    fprintf(tfp, "(%d,%d)\n", q->x, q->y);
X    }
X#endif
X    if (line->for_arrow) {
X    draw_arrow_head(p, q, line->for_arrow->ht, line->for_arrow->wid);
X        if (Verbose) fprintf(tfp, "%%\n");
X    }
X}
X
Xset_style(style, dash_len)
Xint style;
Xfloat dash_len;
X{
X    LineStyle = style;
X    if (LineStyle == DASH_LINE) {
X        switch (DashType) {
X        case DottedDash:
X            LineStyle = DOTTED_LINE;
X            break;
X        default:
X            DashLen = dash_len * DashScale;
X            break;
X        }
X    }
X}
X
X
Xvoid genepic_spline(spl)
XF_spline *spl;
X{
X    set_linewidth(spl->thickness);
X    set_style(SOLID_LINE, 0.0);
X    if (int_spline(spl)) {
X    genepic_itp_spline(spl);
X    } else {
X    genepic_ctl_spline(spl);
X    }
X}
X
Xvoid genepic_ctl_spline(spl)
XF_spline *spl;
X{
X    if (closed_spline(spl)) {
X    genepic_closed_spline(spl);
X    } else {
X    genepic_open_spline(spl);
X    }
X}
X
Xstatic void genepic_open_spline(spl)
XF_spline *spl;
X{
X    F_point *p, *q, *r;
X    FPoint first, mid;
X    int pt_count = 0;
X
X    p = spl->points;
X    q = p->next;
X    convertCS(p);
X    convertCS(q);
X    if (spl->back_arrow) {
X    draw_arrow_head(q, p, spl->back_arrow->ht, spl->back_arrow->wid);
X        if (Verbose) fprintf(tfp, "%%\n");
X    }
X    if (q->next == NULL) {
X    fprintf(tfp, "\\%s(%d,%d)(%d,%d)\n", LnCmd,
X           p->x, p->y, q->x, q->y);
X    return;
X    }
X    if (TeXLang == EEpic || TeXLang == EEpic_emu) {
X        fprintf(tfp, "\\spline(%d,%d)\n", p->x, p->y);
X        pt_count++;
X        while(q->next != NULL) {
X             if (++pt_count > PtPerLine) {
X                 pt_count=1;
X                 fprintf(tfp, "\n\t");
X             }
X             fprintf(tfp, "(%d,%d)", q->x, q->y);
X             p=q;
X             q = q->next;
X             convertCS(q);
X        }
X        fprintf(tfp, "(%d,%d)\n", q->x, q->y);
X    } else {
X        fprintf(tfp, "\\%s(%d,%d)\n", LnCmd, p->x, p->y);
X        r = q->next;
X        convertCS(r);
X        first.x = p->x;
X        first.y = p->y;
X        while (r->next != NULL) {
X            mid.x = (q->x + r->x) / 2.0;
X            mid.y = (q->y + r->y) / 2.0;
X            chaikin_curve(first.x, first.y, (double) q->x, (double) q->y,
X                            mid.x, mid.y);
X            first = mid;
X            q=r;
X            r = r->next;
X            convertCS(r);
X        }
X        chaikin_curve(first.x, first.y, (double) q->x, (double) q->y,
X                        (double) r->x, (double) r->y);
X        p=q;
X        q=r;
X    fprintf(tfp, "\n");
X    }
X    if (spl->for_arrow) {
X    draw_arrow_head(p, q, spl->for_arrow->ht, spl->for_arrow->wid);
X        if (Verbose) fprintf(tfp, "%%\n");
X    }
X}
X
Xstatic void genepic_closed_spline(spl)
XF_spline *spl;
X{
X    F_point *p;
X    double cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4;
X    double x1, y1, x2, y2;
X
X    p = spl->points;
X    convertCS(p);
X    x1 = p->x;  y1 = p->y;
X    p = p->next;
X    convertCS(p);
X    x2 = p->x;  y2 = p->y;
X    cx1 = (x1 + x2) / 2;      cy1 = (y1 + y2) / 2;
X    cx2 = (x1 + 3 * x2) / 4;  cy2 = (y1 + 3 * y2) / 4;
X    for (p = p->next; p != NULL; p = p->next) {
X    fprintf(tfp, "\\%s(%.3f,%.3f)", LnCmd, cx1, cy1);
X    x1 = x2;  y1 = y2;
X    convertCS(p);
X    x2 = p->x;  y2 = p->y;
X    cx3 = (3 * x1 + x2) / 4;  cy3 = (3 * y1 + y2) / 4;
X    cx4 = (x1 + x2) / 2;      cy4 = (y1 + y2) / 2;
X    quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4);
X    fprintf(tfp, "\n");
X    cx1 = cx4;  cy1 = cy4;
X    cx2 = (x1 + 3 * x2) / 4;  cy2 = (y1 + 3 * y2) / 4;
X    }
X    x1 = x2;  y1 = y2;
X    p = spl->points->next;
X    x2 = p->x;  y2 = p->y;
X    cx3 = (3 * x1 + x2) / 4;  cy3 = (3 * y1 + y2) / 4;
X    cx4 = (x1 + x2) / 2;      cy4 = (y1 + y2) / 2;
X    fprintf(tfp, "\\%s(%.3f,%.3f)", LnCmd, cx1, cy1);
X    quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4);
X    fprintf(tfp, "\n");
X}
X
Xchaikin_curve(a1, b1, a2, b2, a3, b3)
Xdouble a1, b1, a2, b2, a3, b3;
X{
X    double xm1, xmid, xm2, ym1, ymid, ym2;
X
X    if (fabs(a1-a3) < Threshold && fabs(b1-b3) < Threshold) {
X        fprintf(tfp, "\t(%.3f,%.3f)\n", a3, b3);
X    } else {
X        xm1 = (a1 + a2) / 2;
X        ym1 = (b1 + b2) / 2;
X        xm2 = (a2 + a3) / 2;
X        ym2 = (b2 + b3) / 2;
X        xmid = (xm1 + xm2) / 2;
X        ymid = (ym1 + ym2) / 2;
X        chaikin_curve(a1, b1, xm1, ym1, xmid, ymid);
X        chaikin_curve(xmid, ymid, xm2, ym2, a3, b3);
X    }
X}
X
Xstatic quadratic_spline(a1, b1, a2, b2, a3, b3, a4, b4)
Xdouble    a1, b1, a2, b2, a3, b3, a4, b4;
X{
X    double    x1, y1, x4, y4;
X    double    xmid, ymid;
X
X    x1 = a1; y1 = b1;
X    x4 = a4; y4 = b4;
X
X    xmid = (a2 + a3) / 2;
X    ymid = (b2 + b3) / 2;
X    if (fabs(x1 - xmid) < Threshold && fabs(y1 - ymid) < Threshold) {
X    fprintf(tfp, "\t(%.3f,%.3f)\n", xmid, ymid);
X    } else {
X    quadratic_spline(x1, y1, ((x1+a2)/2), ((y1+b2)/2),
X             ((3*a2+a3)/4), ((3*b2+b3)/4), xmid, ymid);
X    }
X
X    if (fabs(xmid - x4) < Threshold && fabs(ymid - y4) < Threshold) {
X    fprintf(tfp, "\t(%.3f,%.3f)\n", x4, y4);
X    } else {
X    quadratic_spline(xmid, ymid, ((a2+3*a3)/4), ((b2+3*b3)/4),
X             ((a3+x4)/2), ((b3+y4)/2), x4, y4);
X    }
X}
X
Xgenepic_itp_spline(spl)
XF_spline *spl;
X{
X    F_point *p1, *p2;
X    FPoint pt1l, pt1r, pt2l, pt2r, tmpfpt;
X    F_control *cp1, *cp2;
X
X    p1 = spl->points;
X    convertCS(p1);
X    cp1 = spl->controls;
X    pt1l.x = cp1->lx;
X    pt1l.y = cp1->ly;
X    pt1r.x = cp1->rx;
X    pt1r.y = cp1->ry;
X    fconvertCS(&pt1l);
X    fconvertCS(&pt1r);
X
X    if (spl->back_arrow) {
X    tmpfpt.x = p1->x;
X    tmpfpt.y = p1->y;
X    fdraw_arrow_head(&pt1r, &tmpfpt,
X        spl->back_arrow->ht, spl->back_arrow->wid);
X        if (Verbose) fprintf(tfp, "%%\n");
X    }
X
X    for (p2 = p1->next, cp2 = cp1->next; p2 != NULL;
X     p1 = p2, pt1r = pt2r, p2 = p2->next, cp2 = cp2->next) {
X    fprintf(tfp, "\\%s(%d,%d)", LnCmd, p1->x, p1->y);
X    convertCS(p2);
X    pt2l.x = cp2->lx;
X    pt2l.y = cp2->ly;
X    pt2r.x = cp2->rx;
X    pt2r.y = cp2->ry;
X    fconvertCS(&pt2l);
X    fconvertCS(&pt2r);
X    bezier_spline((double) p1->x, (double) p1->y,
X              pt1r.x, pt1r.y,
X              pt2l.x, pt2l.y,
X              (double) p2->x, (double) p2->y);
X    fprintf(tfp, "\n");
X    }
X
X    if (spl->for_arrow) {
X    tmpfpt.x = p1->x;
X    tmpfpt.y = p1->y;
X    fdraw_arrow_head(&pt2l, &tmpfpt,
X             spl->for_arrow->ht, spl->for_arrow->wid);
X    if (Verbose) fprintf(tfp, "%%\n");
X    }
X}
X
Xstatic bezier_spline(a0, b0, a1, b1, a2, b2, a3, b3)
Xdouble    a0, b0, a1, b1, a2, b2, a3, b3;
X{
X    double    x0, y0, x3, y3;
X    double    sx1, sy1, sx2, sy2, tx, ty, tx1, ty1, tx2, ty2, xmid, ymid;
X
X    x0 = a0; y0 = b0;
X    x3 = a3; y3 = b3;
X    if (fabs(x0 - x3) < Threshold && fabs(y0 - y3) < Threshold) {
X    fprintf(tfp, "\t(%.3f,%.3f)\n", x3, y3);
X    } else {
X    tx = (a1 + a2) / 2;        ty = (b1 + b2) / 2;
X    sx1 = (x0 + a1) / 2;    sy1 = (y0 + b1) / 2;
X    sx2 = (sx1 + tx) / 2;    sy2 = (sy1 + ty) / 2;
X    tx2 = (a2 + x3) / 2;    ty2 = (b2 + y3) / 2;
X    tx1 = (tx2 + tx) / 2;    ty1 = (ty2 + ty) / 2;
X    xmid = (sx2 + tx1) / 2;    ymid = (sy2 + ty1) / 2;
X
X    bezier_spline(x0, y0, sx1, sy1, sx2, sy2, xmid, ymid);
X    bezier_spline(xmid, ymid, tx1, ty1, tx2, ty2, x3, y3);
X    }
X}
X
Xvoid genepic_ellipse(ell)
XF_ellipse *ell;
X{
X    F_point pt;
X
X    set_linewidth(ell->thickness);
X    pt.x = ell->center.x;
X    pt.y = ell->center.y;
X    convertCS(&pt);
X    if (TeXLang == EEpic || TeXLang == EEpic_emu ||
X      ell->radiuses.x != ell->radiuses.y ||
X          ell->radiuses.x > MaxCircleRadius) {
X    set_pattern(ell->area_fill);
X        fprintf(tfp, "\\put(%d,%d){", pt.x, pt.y );
X#ifndef OLDCODE
X        if (EllipseCmd == 0) {
X        if (ell->area_fill < UNFILLED) ell->area_fill = UNFILLED;
X        fprintf(tfp, "%s", FillCommands[ell->area_fill]);
X#  ifdef DrawOutLine
X        if (ell->area_fill != UNFILLED && OutLine == 0) OutLine = 1;
X#  endif
X        }
X     fprintf(tfp, EllCmdstr[EllipseCmd],EllCmdkw[EllipseCmd], "",
X           2 * ell->radiuses.x, 2 * ell->radiuses.y);
X#  ifdef DrawOutLine
X    if (OutLine == 1) {
X        OutLine=0;
X            fprintf(tfp, "\\put(%d,%d){", pt.x, pt.y );
X        fprintf(tfp, EllCmdstr[EllipseCmd],EllCmdkw[EllipseCmd], "",
X           2 * ell->radiuses.x, 2 * ell->radiuses.y);
X    }
X#  endif
X#else
X    fprintf(tfp, EllCmdstr[EllipseCmd], EllCmdkw[EllipseCmd],
X           (EllipseCmd==0 && ell->area_fill==BLACK_FILL ? "*" : ""),
X           2 * ell->radiuses.x, 2 * ell->radiuses.y);
X#endif
X    } else {
X        fprintf(tfp, "\\put(%d,%d){\\circle", pt.x, pt.y);
X        if (ell->area_fill == BLACK_FILL) {
X            fputc('*', tfp);
X        }
X        fprintf(tfp, "{%d}}\n", 2*ell->radiuses.x);
X    }
X}
X
Xextern char *ISOtoTeX[];
Xvoid genepic_text(text)
XF_text *text;
X{
X    F_point pt;
X    char *tpos, *esc_cp, *special_index;
X    unsigned char   *cp;
X
X    pt.x=text->base_x;
X    pt.y=text->base_y;
X    convertCS(&pt);
X    switch (text->type) {
X    case T_LEFT_JUSTIFIED:
X    case DEFAULT:
X    tpos = "[lb]";
X    break;
X    case T_CENTER_JUSTIFIED:
X    tpos = "[b]";
X    break;
X    case T_RIGHT_JUSTIFIED:
X    tpos = "[rb]";
X    break;
X    default:
X    fprintf(stderr, "unknown text position type\n");
X    exit(1);
X    }
X    fprintf(tfp, "\\put(%d,%d){\\makebox(0,0)%s{\\smash{",
X           pt.x, pt.y, tpos);
X    /* Output a shortstack in case there are multiple lines. */
X    for(cp = (unsigned char*)text->cstring; *cp; cp++) {
X      if (*cp == TEXT_LINE_SEP) {
X    fprintf(tfp, "\\shortstack" );
X    /* Output the justification for the shortstack. */
X    switch (text->type) {
X    case T_LEFT_JUSTIFIED:
X    case DEFAULT:
X    fprintf(tfp, "[l]");
X    break;
X    case T_CENTER_JUSTIFIED:
X    break;
X    case T_RIGHT_JUSTIFIED:
X    fprintf(tfp, "[r]");
X    break;
X    default:
X    fprintf(stderr, "unknown text position type\n");
X    exit(1);
X    }
X    break;
X      }
X    }
X
X    unpsfont(text);
X    { int texsize;
X      double baselineskip;
X
X      texsize = TEXFONTMAG(text);
X      baselineskip = (texsize * 1.2);
X
X      fprintf(tfp, "{{\\SetFigFont{%d}{%.1f}{%s}",
X          texsize, baselineskip, TEXFONT(text->font));
X    }
X
X    if (!special_text(text))
X    /* This loop escapes special LaTeX characters. */
X    for(cp = (unsigned char*)text->cstring; *cp; cp++) {
X              if (special_index=strchr(latex_text_specials, *cp)) {
X          /* Write out the replacement.  Implementation note: we can't
X         use puts since that will output an additional newline. */
X          esc_cp=latex_text_mappings[special_index-latex_text_specials];
X          while (*esc_cp)
X        fputc(*esc_cp++, tfp);
X        }
X        else if (*cp == TEXT_LINE_SEP) {
X          /* Handle multi-line text strings. The problem being addressed here
X         is a LaTeX bug where LaTeX is unable to handle a font which
X         spans multiple lines.  What we are doing here is closing off
X         the current font, starting a new line, and then resuming with
X         the current font. */
X          fprintf(tfp, "} \\\\\n");
X
X           { int texsize;
X         double baselineskip;
X
X         texsize = TEXFONTMAG(text);
X         baselineskip = (texsize * 1.2);
X
X         fprintf(tfp, "{\\SetFigFont{%d}{%.1f}{%s}",
X             texsize, baselineskip, TEXFONT(text->font));
X            }
X        }
X        else
X        fputc(*cp, tfp);
X          }
X    else
X    for(cp = (unsigned char*)text->cstring; *cp; cp++) {
X      if (*cp == TEXT_LINE_SEP) {
X          /* Handle multi-line text strings. */
X          fprintf(tfp, "} \\\\\n");
X
X          { int texsize;
X        double baselineskip;
X
X        texsize = TEXFONTMAG(text);
X        baselineskip = (texsize * 1.2);
X
X        fprintf(tfp, "{\\SetFigFont{%d}{%.1f}{%s}",
X            texsize, baselineskip, TEXFONT(text->font));
X          }
X        }
X        else
X            if (*cp >= 0xa0)    /* we escape 8-bit char */
X                fprintf(tfp, "%s", ISOtoTeX[(int)*cp-0xa0]);
X        else
X            fputc(*cp, tfp);
X      }
X    fprintf(tfp, "}}}}}\n");
X}
X
Xvoid genepic_arc(arc)
XF_arc *arc;
X{
X    FPoint pt1, pt2, ctr, tmp;
X    double r1, r2, th1, th2, theta;
X    double dx1, dy1, dx2, dy2;
X    double arrowfactor;
X
X    ctr.x = arc->center.x;
X    ctr.y = arc->center.y;
X    pt1.x = arc->point[0].x;
X    pt1.y = arc->point[0].y;
X    pt2.x = arc->point[2].x;
X    pt2.y = arc->point[2].y;
X    fconvertCS(&ctr);
X    fconvertCS(&pt1);
X    fconvertCS(&pt2);
X
X    dx1 = pt1.x - ctr.x;
X    dy1 = pt1.y - ctr.y;
X    dx2 = pt2.x - ctr.x;
X    dy2 = pt2.y - ctr.y;
X
X    rtop(dx1, dy1, &r1, &th1);
X    rtop(dx2, dy2, &r2, &th2);
X    arrowfactor = (r1+r2) / 30.0;
X    if (arrowfactor > 1) arrowfactor = 1;
X    set_linewidth(arc->thickness);
X    if (arc->for_arrow) {
X    arc_tangent(&ctr, &pt2, arc->direction, &tmp);
X    fdraw_arrow_head(&tmp, &pt2,
X             arc->for_arrow->ht*arrowfactor,
X             arc->for_arrow->wid*arrowfactor);
X        if (Verbose) fprintf(tfp, "%%\n");
X    }
X    if (arc->back_arrow) {
X    arc_tangent(&ctr, &pt1, !arc->direction, &tmp);
X    fdraw_arrow_head(&tmp, &pt1,
X             arc->back_arrow->ht*arrowfactor,
X             arc->back_arrow->wid*arrowfactor);
X        if (Verbose) fprintf(tfp, "%%\n");
X    }
X    if (TeXLang == EEpic) {
X    set_pattern(arc->area_fill);
X        fprintf(tfp, "\\put(%4.3lf,%4.3lf){", ctr.x, ctr.y);
X    } else {
X    fprintf(tfp, "\\drawline");
X    }
X    if (TeXLang == EEpic) {
X    if (arc->area_fill < UNFILLED) arc->area_fill = UNFILLED;
X    fprintf(tfp, "%s", FillCommands[arc->area_fill]);
X#ifdef DrawOutLine
X    if (arc->area_fill != UNFILLED && OutLine==0) OutLine=1;
X#endif
X    }
X    if (arc->direction) {
X    theta = th2 - th1;
X    if (theta < 0) theta += 2 * M_PI;
X    th2 = 2*M_PI-th2;
X    if (TeXLang == EEpic) {
X        fprintf(tfp, "\\arc{%4.3f}{%2.4f}{%2.4f}}\n", 2*r1, th2, th2+theta);
X#ifdef DrawOutLine
X        if (OutLine==1) {
X        OutLine=0;
X            fprintf(tfp, "\\put(%4.3lf,%4.3lf){", ctr.x, ctr.y);
X        fprintf(tfp, "\\arc{%4.3f}{%2.4f}{%2.4f}}\n", 2*r1, th2, th2+theta);
X        }
X#endif
X        } else {
X            drawarc(&ctr, r1, 2*M_PI - th2 - theta, theta);
X        }
X    } else {
X    theta = th1 - th2;
X    if (theta < 0) theta += 2 * M_PI;
X    th1 = 2*M_PI-th1;
X    if (TeXLang == EEpic) {
X        fprintf(tfp, "\\arc{%4.3f}{%2.4f}{%2.4f}}\n", 2*r2, th1, th1+theta);
X#ifdef DrawOutLine
X        if (OutLine==1) {
X        OutLine=0;
X            fprintf(tfp, "\\put(%4.3lf,%4.3lf){", ctr.x, ctr.y);
X        fprintf(tfp, "\\arc{%4.3f}{%2.4f}{%2.4f}}\n", 2*r2, th1, th1+theta);
X        }
X#endif
X    } else {
X            drawarc(&ctr, r2, 2*M_PI - th1 - theta, theta);
X        }
X    }
X}
X
Xdrawarc(ctr, r, th1, angle)
XFPoint *ctr;
Xdouble r, th1, angle;
X{
X    double arclength, delta;
X    int division, pt_count = 0;
X
X
X    division = angle * r / Threshold;
X    delta = angle / division;
X    division++;
X    while (division-- > 0) {
X        if (++pt_count > PtPerLine) {
X            fprintf(tfp, "\n\t");
X            pt_count = 1;
X        }
X        fprintf(tfp, "(%.3lf,%.3lf)", ctr->x + cos(th1) * r,
X                                ctr->y + sin(th1) * r);
X        th1 += delta;
X    }
X    fprintf(tfp, "\n");
X}
X
Xstatic arc_tangent(pt1, pt2, direction, pt3)
XFPoint *pt1, *pt2, *pt3;
Xint direction;
X{
X    if (direction) {
X    pt3->x = pt2->x + (pt2->y - pt1->y);
X    pt3->y = pt2->y - (pt2->x - pt1->x);
X    } else {
X    pt3->x = pt2->x - (pt2->y - pt1->y);
X    pt3->y = pt2->y + (pt2->x - pt1->x);
X    }
X}
X
Xrtop(x, y, r, th)
Xdouble x, y, *r, *th;
X{
X    *r = sqrt(x*x+y*y);
X    *th = acos(x/(*r));
X    if (*th < 0) *th = M_PI + *th;
X    if (y < 0) *th = 2*M_PI - *th;
X}
X
Xstatic draw_arrow_head(pt1, pt2, arrowht, arrowwid)
XF_point *pt1, *pt2;
Xdouble arrowht, arrowwid;
X{
X    FPoint fpt1, fpt2;
X
X    fpt1.x = pt1->x;
X    fpt1.y = pt1->y;
X    fpt2.x = pt2->x;
X    fpt2.y = pt2->y;
X    fdraw_arrow_head(&fpt1, &fpt2, arrowht, arrowwid);
X}
X
Xfdraw_arrow_head(pt1, pt2, arrowht, arrowwid)
XFPoint *pt1, *pt2;
Xdouble arrowht, arrowwid;
X{
X    double x1, y1, x2, y2;
X    double x,y, xb,yb,dx,dy,l,sina,cosa;
X    double xc, yc, xd, yd;
X
X    x1 = pt1->x;
X    y1 = pt1->y;
X    x2 = pt2->x;
X    y2 = pt2->y;
X
X    dx = x2 - x1;  dy = y1 - y2;
X    l = sqrt(dx*dx+dy*dy);
X    if (l == 0) {
X     return;
X    }
X    else {
X     sina = dy / l;  cosa = dx / l;
X    }
X    xb = x2*cosa - y2*sina;
X    yb = x2*sina + y2*cosa;
X    x = xb - arrowht;
X    y = yb - arrowwid / 2;
X    xc = x*cosa + y*sina;
X    yc = -x*sina + y*cosa;
X    y = yb + arrowwid / 2;
X    xd = x*cosa + y*sina;
X    yd = -x*sina + y*cosa;
X
X    if (Verbose) fprintf(tfp, "%%\n%% arrow head\n%%\n");
X
X    fprintf(tfp, "\\%s(%4.3f,%4.3f)(%4.3f,%4.3f)(%4.3f,%4.3f)\n", LnCmd,
X        xc, yc, x2, y2, xd, yd);
X}
X
X#ifndef MSDOS
Xstricmp(s, t)
Xchar *s, *t;
X{
X    char a, b;
X
X    for (;;) {
X        a= *s++; b= *t++;
X        a = islower(a) ? toupper(a) : a;
X        b = islower(b) ? toupper(b) : b;
X        if (a != b) break;
X        if (a == '\0') return(0);
X    }
X    return(a - b);
X}
X#endif
X
Xstruct driver dev_epic = {
X         genepic_option,
X    genepic_start,
X    genepic_arc,
X    genepic_ellipse,
X    genepic_line,
X    genepic_spline,
X    genepic_text,
X    genepic_end,
X    INCLUDE_TEXT
X};
END_OF_FILE
if test 30473 -ne `wc -c <'fig2dev/dev/genepic.c'`; then
    echo shar: \"'fig2dev/dev/genepic.c'\" unpacked with wrong size!
fi
# end of 'fig2dev/dev/genepic.c'
fi
if test -f 'fig2dev/dev/genps.c' -a "${1}" != "-c" ; then
  echo shar: Will not clobber existing file \"'fig2dev/dev/genps.c'\"
else
echo shar: Extracting \"'fig2dev/dev/genps.c'\" \(28838 characters\)
sed "s/^X//" >'fig2dev/dev/genps.c' <<'END_OF_FILE'
X/*
X * TransFig: Facility for Translating Fig code
X * Copyright (c) 1985 Supoj Sutantavibul
X * Copyright (c) 1991 Micah Beck
X *
X * Permission to use, copy, modify, distribute, and sell this software and its
X * documentation for any purpose is hereby granted without fee, provided that
X * the above copyright notice appear in all copies and that both that
X * copyright notice and this permission notice appear in supporting
X * documentation. The authors make no representations about the suitability
X * of this software for any purpose.  It is provided "as is" without express
X * or implied warranty.
X *
X * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
X * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
X * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
X * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
X * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
X * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
X * PERFORMANCE OF THIS SOFTWARE.
X *
X */
X
X/*
X *    genps.c: PostScript driver for fig2dev
X *
X *    Modified by Herbert Bauer to support ISO-Characters,
X *    multiple page output, color mode etc.
X *    [e-mail]
X *
X *    Modified by Eric Picheral to support the whole set of ISO-Latin-1
X *    Modified by Herve Soulard to allow non-iso coding on special fonts
X *    [e-mail] (8 Apr 1993)
X
X*/
X
X#include <sys/param.h>
X#if defined(hpux) || defined(SYSV) || defined(BSD4_3)
X#include <sys/types.h>
X#endif
X#include <sys/file.h>
X#include <stdio.h>
X#include <math.h>
X#include <pwd.h>
X#include <errno.h>
Xextern char *sys_errlist[];
X#include "pi.h"
X#include "object.h"
X#include "fig2dev.h"
X#include "psfonts.h"
X#include <string.h>
X#include <time.h>
X
X/* for the version nubmer */
X#include "../../patchlevel.h"
X
X#ifdef A4
X#define        PAGE_WIDTH        595    /* points; 21cm */
X#define        PAGE_HEIGHT        842    /* points; 29.7cm */
X#else
X#define        PAGE_WIDTH        612    /* points; 8.5" */
X#define        PAGE_HEIGHT        792    /* points; 11" */
X#endif
X#define        TRUE            1
X#define        FALSE            0
X#define        POINT_PER_INCH        72
X#define        ULIMIT_FONT_SIZE    300
X#define     MAXCOLORS         16
X
Xint        pagewidth = PAGE_WIDTH;
Xint        pageheight = PAGE_HEIGHT;
Xstatic int    coord_system;
Xint        show_page = 0;
Xstatic int    cur_thickness;
Xint        center = 0;
Xint        landscape = 0;
Xint        pages;
Xint        no_obj = 0;
Xint        multi_page = FALSE;
X
Xextern    int    v2_flag, v21_flag;
X
Xstatic    arc_tangent();
Xstatic    draw_arrow_head();
Xstatic    fill_area();
Xstatic    iso_text_exist();
Xstatic    encode_all_fonts();
Xstatic    ellipse_exist();
Xstatic    normal_spline_exist();
X
X#define GRAYVAL(F)    ((F) <= 21 ? ((F)-1)/20.0 : 1.0)
X
X#define        BEGIN_PROLOG    "\
X/$F2psDict 200 dict def \n\
X$F2psDict begin\n\
X$F2psDict /mtrx matrix put\n\
X/l {lineto} bind def\n\
X/m {moveto} bind def\n\
X/s {stroke} bind def\n\
X/n {newpath} bind def\n\
X/gs {gsave} bind def\n\
X/gr {grestore} bind def\n\
X/clp {closepath} bind def\n\
X/graycol {dup dup currentrgbcolor 4 -2 roll mul 4 -2 roll mul\n\
X4 -2 roll mul setrgbcolor} bind def\n\
X/col-1 {} def\n\
X/col0 {0 0 0 setrgbcolor} bind def\n\
X/col1 {0 0 1 setrgbcolor} bind def\n\
X/col2 {0 1 0 setrgbcolor} bind def\n\
X/col3 {0 1 1 setrgbcolor} bind def\n\
X/col4 {1 0 0 setrgbcolor} bind def\n\
X/col5 {1 0 1 setrgbcolor} bind def\n\
X/col6 {1 1 0 setrgbcolor} bind def\n\
X/col7 {1 1 1 setrgbcolor} bind def\n\
X/col8 {.68 .85 .9 setrgbcolor} bind def\n\
X/col9 {0 .39 0 setrgbcolor} bind def\n\
X/col10 {.65 .17 .17 setrgbcolor} bind def\n\
X/col11 {1 .51 0 setrgbcolor} bind def\n\
X/col12 {.63 .13 .94 setrgbcolor} bind def\n\
X/col13 {1 .75 .8 setrgbcolor} bind def\n\
X/col14 {.7 .13 .13 setrgbcolor} bind def\n\
X/col15 {1 .84 0 setrgbcolor} bind def\n\
X"
X
X#define        SPECIAL_CHAR_1    "\
X/reencdict 12 dict def /ReEncode { reencdict begin\n\
X/newcodesandnames exch def /newfontname exch def /basefontname exch def\n\
X/basefontdict basefontname findfont def /newfont basefontdict maxlength dict def\n\
Xbasefontdict { exch dup /FID ne { dup /Encoding eq\n\
X{ exch dup length array copy newfont 3 1 roll put }\n\
X{ exch newfont 3 1 roll put } ifelse } { pop pop } ifelse } forall\n\
Xnewfont /FontName newfontname put newcodesandnames aload pop\n\
X128 1 255 { newfont /Encoding get exch /.notdef put } for\n\
Xnewcodesandnames length 2 idiv { newfont /Encoding get 3 1 roll put } repeat\n\
Xnewfontname newfont definefont pop end } def\n\
X/isovec [ \n\
X"
X#define        SPECIAL_CHAR_2    "\
X8#200 /grave 8#201 /acute 8#202 /circumflex 8#203 /tilde\n\
X8#204 /macron 8#205 /breve 8#206 /dotaccent 8#207 /dieresis\n\
X8#210 /ring 8#211 /cedilla 8#212 /hungarumlaut 8#213 /ogonek 8#214 /caron\n\
X8#220 /dotlessi 8#240 /space 8#241 /exclamdown 8#242 /cent 8#243 /sterling\n\
X8#244 /currency 8#245 /yen 8#246 /brokenbar 8#247 /section 8#250 /dieresis\n\
X8#251 /copyright 8#252 /ordfeminine 8#253 /guillemotleft 8#254 /logicalnot\n\
X8#255 /endash 8#256 /registered 8#257 /macron 8#260 /degree 8#261 /plusminus\n\
X8#262 /twosuperior 8#263 /threesuperior 8#264 /acute 8#265 /mu 8#266 /paragraph\n\
X8#267 /periodcentered 8#270 /cedilla 8#271 /onesuperior 8#272 /ordmasculine\n\
X8#273 /guillemotright 8#274 /onequarter 8#275 /onehalf \n\
X8#276 /threequarters 8#277 /questiondown 8#300 /Agrave 8#301 /Aacute\n\
X8#302 /Acircumflex 8#303 /Atilde 8#304 /Adieresis 8#305 /Aring\n\
X"
X#define        SPECIAL_CHAR_3    "\
X8#306 /AE 8#307 /Ccedilla 8#310 /Egrave 8#311 /Eacute\n\
X8#312 /Ecircumflex 8#313 /Edieresis 8#314 /Igrave 8#315 /Iacute\n\
X8#316 /Icircumflex 8#317 /Idieresis 8#320 /Eth 8#321 /Ntilde 8#322 /Ograve\n\
X8#323 /Oacute 8#324 /Ocircumflex 8#325 /Otilde 8#326 /Odieresis 8#327 /multiply\n\
X8#330 /Oslash 8#331 /Ugrave 8#332 /Uacute 8#333 /Ucircumflex\n\
X8#334 /Udieresis 8#335 /Yacute 8#336 /Thorn 8#337 /germandbls 8#340 /agrave\n\
X8#341 /aacute 8#342 /acircumflex 8#343 /atilde 8#344 /adieresis 8#345 /aring\n\
X8#346 /ae 8#347 /ccedilla 8#350 /egrave 8#351 /eacute\n\
X8#352 /ecircumflex 8#353 /edieresis 8#354 /igrave 8#355 /iacute\n\
X8#356 /icircumflex 8#357 /idieresis 8#360 /eth 8#361 /ntilde 8#362 /ograve\n\
X8#363 /oacute 8#364 /ocircumflex 8#365 /otilde 8#366 /odieresis 8#367 /divide\n\
X8#370 /oslash 8#371 /ugrave 8#372 /uacute 8#373 /ucircumflex\n\
X8#374 /udieresis 8#375 /yacute 8#376 /thorn 8#377 /ydieresis \
X] def\n\
X"
X
X#define        ELLIPSE_PS    " \
X/DrawEllipse {\n\
X    /endangle exch def\n\
X    /startangle exch def\n\
X    /yrad exch def\n\
X    /xrad exch def\n\
X    /y exch def\n\
X    /x exch def\n\
X    /savematrix mtrx currentmatrix def\n\
X    x y translate xrad yrad scale 0 0 1 startangle endangle arc\n\
X    savematrix setmatrix\n\
X    } def\n\
X"
X/* The original PostScript definition for adding a spline section to the
X * current path uses recursive bisection.  The following definition using the
X * curveto operator is more efficient since it executes at compiled rather
X * than interpreted code speed.  The Bezier control points are 2/3 of the way
X * from z1 (and z3) to z2.
X *
X * ---Rene Llames, 21 July 1988.
X */
X#define        SPLINE_PS    " \
X/DrawSplineSection {\n\
X    /y3 exch def\n\
X    /x3 exch def\n\
X    /y2 exch def\n\
X    /x2 exch def\n\
X    /y1 exch def\n\
X    /x1 exch def\n\
X    /xa x1 x2 x1 sub 0.666667 mul add def\n\
X    /ya y1 y2 y1 sub 0.666667 mul add def\n\
X    /xb x3 x2 x3 sub 0.666667 mul add def\n\
X    /yb y3 y2 y3 sub 0.666667 mul add def\n\
X    x1 y1 lineto\n\
X    xa ya xb yb x3 y3 curveto\n\
X    } def\n\
X"
X#define        END_PROLOG    "\
X    end\n\
X/$F2psBegin {$F2psDict begin /$F2psEnteredState save def} def\n\
X/$F2psEnd {$F2psEnteredState restore end} def\n\
X%%EndProlog\n\
X"
X
Xstatic double        tx, scalex, scaley;
Xstatic double        dx, dy, origx, origy;
X
Xvoid genps_option(opt, optarg)
Xchar opt;
Xchar *optarg;
X{
X    int i;
X
X    switch (opt) {
X
X    case 'f':
X        for ( i = 1; i <= MAX_PSFONT + 1; i++ )
X            if ( !strcmp(optarg, PSfontnames[i]) ) break;
X
X        if ( i > MAX_PSFONT + 1 )
X            fprintf(stderr,
X                "warning: non-standard font name %s\n", optarg);
X
X            psfontnames[0] = psfontnames[1] = optarg;
X            PSfontnames[0] = PSfontnames[1] = optarg;
X            break;
X
X    case 'c':
X            center = 1;
X        break;
X
X    case 's':
X        if (font_size <= 0 || font_size > ULIMIT_FONT_SIZE) {
X            fprintf(stderr,
X                "warning: font size %d out of bounds\n", font_size);
X        }
X        break;
X
X    case 'P':
X        show_page = 1;
X        break;
X
X          case 'm':
X          case 'L':
X        break;
X
X          case 'l':
X        landscape = 1;
X        break;
X
X    default:
X        put_msg(Err_badarg, opt, "ps");
X        exit(1);
X        break;
X    }
X}
X
Xvoid genps_start(objects)
XF_compound    *objects;
X{
X    char        host[256];
X    struct passwd    *who;
X    time_t        when;
X    int        itmp;
X    int        resolution;
X
X    resolution = objects->nwcorner.x;
X    coord_system = objects->nwcorner.y;
X    scalex = scaley = mag * POINT_PER_INCH / (double)resolution;
X    /* convert to point unit */
X    llx = (int)ceil(llx * scalex); lly = (int)ceil(lly * scaley);
X    urx = (int)ceil(urx * scalex); ury = (int)ceil(ury * scaley);
X
X
X    if (landscape)
X    {
X       itmp = pageheight; pageheight = pagewidth; pagewidth = itmp;
X       itmp = llx; llx = lly; lly = itmp;
X       itmp = urx; urx = ury; ury = itmp;
X    }
X    if (show_page)
X    {
X       if (center)
X       {
X          if (landscape)
X          {
X         origx = (pageheight - urx - llx)/2.0;
X         origy = (pagewidth - ury - lly)/2.0;
X          }
X          else
X          {
X         origx = (pagewidth - urx - llx)/2.0;
X         origy = (pageheight + ury + lly)/2.0;
X          }
X       }
X       else
X       {
X          origx = 0.0;
X          origy = landscape ? 0.0 : pageheight;
X       }
X    }
X    else
X    {
X       origx = -llx;
X       origy = landscape ? -lly : ury;
X    }
X
X    if (coord_system == 2) scaley = -scaley;
X
X    if (show_page)
X        fprintf(tfp, "%%!PS-Adobe-2.0\n");        /* PostScript magic strings */
X    else
X        fprintf(tfp, "%%!PS-Adobe-2.0 EPSF-2.0\n");    /* Encapsulated PostScript */
X    who = getpwuid(getuid());
X    if (-1 == gethostname(host, sizeof(host)))
X        (void)strcpy(host, "unknown-host!?!?");
X    (void) time(&when);
X    fprintf(tfp, "%%%%Title: %s\n", ((from) ? from : "stdin"));
X    fprintf(tfp, "%%%%Creator: %s Version %s Patchlevel %s\n",
X        prog, VERSION, PATCHLEVEL);
X    fprintf(tfp, "%%%%CreationDate: %s", ctime(&when));
X    if (who)
X       fprintf(tfp, "%%%%For: %s@%s (%s)\n",
X            who->pw_name, host, who->pw_gecos);
X
X    if (!center)
X       if (landscape)
X        pages = (urx/pageheight+1)*(ury/pagewidth+1);
X       else
X        pages = (urx/pagewidth+1)*(ury/pageheight+1);
X    else
X       pages = 1;
X    if (landscape) {
X       fprintf(tfp, "%%%%Orientation: Landscape\n");
X       fprintf(tfp, "%%%%BoundingBox: %d %d %d %d\n",
X          (int)origx+llx, (int)origy+lly, (int)origx+urx, (int)origy+ury);
X    } else {
X       fprintf(tfp, "%%%%Orientation: Portrait\n");
X       fprintf(tfp, "%%%%BoundingBox: %d %d %d %d\n",
X          (int)origx+llx, (int)origy-ury, (int)origx+urx, (int)origy-lly);
X    }
X    fprintf(tfp, "%%%%Pages: %d\n", show_page ? pages : 0 );
X
X    fprintf(tfp, "%%%%EndComments\n");
X    fprintf(tfp, "%s", BEGIN_PROLOG);
X    if (iso_text_exist(objects))
X    {
X       fprintf(tfp, "%s%s%s", SPECIAL_CHAR_1,SPECIAL_CHAR_2,SPECIAL_CHAR_3);
X       encode_all_fonts(objects);
X    }
X    if (ellipse_exist(objects)) fprintf(tfp, "%s\n", ELLIPSE_PS);
X    if (normal_spline_exist(objects)) fprintf(tfp, "%s\n", SPLINE_PS);
X    fprintf(tfp, "%s\n", END_PROLOG);
X    fprintf(tfp, "$F2psBegin\n");
X     fprintf(tfp, "0 setlinecap 0 setlinejoin\n");
X
X     if ( pages > 1 && show_page && !center )
X        multi_page = TRUE;
X     else
X     {
X        fprintf (tfp, "%.1f %.1f translate", origx, origy);
X        if (landscape)
X        {
X           fprintf (tfp, " 90 rotate");
X        }
X        fprintf (tfp, " %.3f %.3f scale\n", scalex, scaley );
X    }
X}
X
Xvoid genps_end()
X{
X    double dx,dy;
X    int i, page;
X    int h,w;
X
X    if (multi_page)
X    {
X       page = 1;
X       h = (landscape? pagewidth: pageheight);
X       w = (landscape? pageheight: pagewidth);
X       for (dy=0; dy < (ury-h*0.1); dy += h*0.9)
X       {
X     for (dx=0; dx < (urx-w*0.1); dx += w*0.9)
X     {
X        fprintf (tfp, "%%%%Page: %d %d\n%.1f %.1f translate",
X        page,page,
X        -(origx+dx), (origy+(landscape?-dy:dy)));
X        if (landscape)
X        {
X           fprintf(tfp, " 90 rotate");
X        }
X        fprintf (tfp, " %.3f %.3f scale\n", scalex, scaley);
X        for (i=0; i<no_obj; i++)
X        {
X           fprintf(tfp, "o%d ", i);
X           if (!(i%20)) fprintf(tfp, "\n", i);
X        }
X        fprintf(tfp, "showpage\n");
X        page++;
X     }
X       }
X    }
X    else
X       if (show_page) fprintf(tfp, "showpage\n");
X    fprintf(tfp, "$F2psEnd\n");
X}
X
Xstatic set_style(s, v)
Xint    s;
Xdouble    v;
X{
X    if (s == DASH_LINE) {
X        if (v > 0.0) fprintf(tfp, "\t[%f] 0 setdash\n", v);
X        }
X    else if (s == DOTTED_LINE) {
X        if (v > 0.0) fprintf(tfp, "\t1 setlinecap [1 %f] %f setdash\n", v, v);
X        }
X    }
X
Xstatic reset_style(s, v)
Xint    s;
Xdouble    v;
X{
X    if (s == DASH_LINE) {
X        if (v > 0.0) fprintf(tfp, "\t[] 0 setdash\n");
X        }
X    else if (s == DOTTED_LINE) {
X        if (v > 0.0) fprintf(tfp, "\t[] 0 setdash 0 setlinecap\n");
X        }
X    }
X
Xstatic set_linewidth(w)
Xint    w;
X{
X    extern int    cur_thickness;
X
X    if (w != cur_thickness) {
X        cur_thickness = w;
X        fprintf(tfp, "%.3f setlinewidth\n", cur_thickness <= 1 ? 0.5* cur_thickness : cur_thickness -1.0);
X        }
X    }
X
Xvoid genps_line(l)
XF_line    *l;
X{
X    F_point        *p, *q;
X    /* JNT */
X    int        radius, i = 0;
X    FILE        *epsf;
X    char        buf[512];
X    char        *cp;
X    int        xmin,xmax,ymin,ymax;
X    int        eps_w, eps_h;
X    double        fllx, flly, furx, fury;
X
X    if (multi_page)
X       fprintf(tfp, "/o%d {", no_obj++);
X    if (l->type != T_EPS_BOX)  /* eps object has no line thickness */
X        set_linewidth(l->thickness);
X    radius = l->radius;        /* radius of rounded-corner boxes */
X    p = l->points;
X    q = p->next;
X    if (q == NULL) { /* A single point line */
X        fprintf(tfp, "n %d %d m %d %d l gs col%d s gr\n",
X            p->x, p->y, p->x, p->y, l->color > MAXCOLORS ? -1 : l->color);
X        if (multi_page)
X           fprintf(tfp, "} bind def\n");
X        return;
X        }
X    if (l->back_arrow && l->thickness > 0)
X        draw_arrow_head((double)q->x, (double)q->y, (double)p->x,
X            (double)p->y, l->back_arrow->ht, l->back_arrow->wid,
X            l->color);
X    if (l->type != T_EPS_BOX)  /* eps object has no line style */
X        set_style(l->style, l->style_val);
X    fprintf(tfp, "%% Polyline\n");
X
X    xmin = xmax = p->x;
X    ymin = ymax = p->y;
X    while (p->next != NULL) /* find lower left and upper right corne
Xrs */
X    {
X        p=p->next;
X        if (xmin > p->x)
X            xmin = p->x;
X        else if (xmax < p->x)
X            xmax = p->x;
X        if (ymin > p->y)
X            ymin = p->y;
X        else if (ymax < p->y)
X            ymax = p->y;
X        }
X
X    if (l->type == T_ARC_BOX)
X    {
X        fprintf(tfp, "n %d %d m",xmin+radius, ymin);
X        fprintf(tfp, " %d %d %d %d %d arcto 4 {pop} repeat",
X                xmin, ymin, xmin, ymax-radius, radius);
X        fprintf(tfp, " %d %d %d %d %d arcto 4 {pop} repeat", /* arc through bl to br */
X                xmin, ymax, xmax-radius, ymax, radius);
X        fprintf(tfp, " %d %d %d %d %d arcto 4 {pop} repeat", /* arc through br to tr */
X                xmax, ymax, xmax, ymin+radius, radius);
X        fprintf(tfp, " %d %d %d %d %d arcto 4 {pop} repeat", /* arc through tr to tl */
X                xmax, ymin, xmin+radius, ymin, radius);
X    }
X    else if (l->type == T_EPS_BOX)  /* encapsulated postscript (eps) file */
X    {
X        int             dx, dy, rotation;
X        int        llx, lly, urx, ury;
X        double          fllx, flly, furx, fury;
X
X        dx = l->points->next->next->x - l->points->x;
X        dy = l->points->next->next->y - l->points->y;
X        rotation = 0;
X        if (dx < 0 && dy < 0)
X               rotation = 180;
X        else if (dx < 0 && dy >= 0)
X               rotation = 270;
X        else if (dy < 0 && dx >= 0)
X               rotation = 90;
X
X        fprintf(tfp, "%%\n");
X        fprintf(tfp, "%% Begin Imported EPS File: %s\n", l->eps->file);
X        fprintf(tfp, "%%\n");
X        epsf = fopen(l->eps->file, "r");
X        if (epsf == NULL) {
X            fprintf (stderr, "Unable to open eps file: %s, error: (%d)\n",
X                l->eps->file, sys_errlist[errno],errno);
X            return;
X        }
X        while (fgets(buf, 512, epsf) != NULL) {
X          lower(buf);
X          if (!strncmp(buf, "%%boundingbox", 13)) {
X            if (sscanf(buf, "%%%%boundingbox: %lf %lf %lf %lf",
X                       &fllx, &flly, &furx, &fury) < 4) {
X              fprintf(stderr,"Bad EPS bitmap file: %s", l->eps->file);
X              fclose(epsf);
X              return;
X            }
X            llx= floor(fllx);
X            lly= floor(flly);
X            urx= ceil(furx);
X            ury= ceil(fury);
X            break;
X          }
X        }
X        fclose(epsf);
X
X        fprintf(tfp, "n gs\n");
X        if (((rotation == 90 || rotation == 270) && !l->eps->flipped) ||
X            (rotation != 90 && rotation != 270 && l->eps->flipped)) {
X            eps_h = urx - llx;
X            eps_w = ury - lly;
X        } else {
X            eps_w = urx - llx;
X            eps_h = ury - lly;
X        }
X
X        /* translate the eps stuff to the right spot on the page */
X        fprintf(tfp, "%d %d translate\n", xmin, ymin);
X
X        /* scale the eps stuff to fit into the bounding box */
X        /* Note: the origin for fig is in the upper-right corner;
X         *       for postscript its in the lower right hand corner.
X         *       To fix it, we use a "negative"-y scale factor, then
X         *       translate the image up on the page */
X        fprintf(tfp, "%f %f scale\n",
X            fabs((double)(xmax-xmin)/eps_w), -1.0*(double)(ymax-ymin)/eps_h);
X        fprintf(tfp, "0 %d translate\n", -eps_h);
X
X        /* flip the eps stuff */
X        /* always translate it back so that the lower-left corner is at the origin */
X        if (l->eps->flipped && rotation==90) {
X            fprintf(tfp, "0 %d translate\n", eps_h);
X            fprintf(tfp, "1 -1 scale\n");
X        }
X        if (l->eps->flipped && rotation==270) {
X            fprintf(tfp, "%d 0 translate\n", eps_w);
X            fprintf(tfp, "-1 1 scale\n");
X        }
X
X        /* note: fig measures rotation clockwise; postscript is counter-clockwise */
X        /* always translate it back so that the lower-left corner is at the origin */
X        switch (rotation) {
X           case 0:
X            break;
X           case 90:
X            if (l->eps->flipped) break;
X            fprintf(tfp, "%d %d translate\n", 0, eps_h);
X            fprintf(tfp, "%d rotate\n", 270);
X            break;
X           case 180:
X            fprintf(tfp, "%d %d translate\n", eps_w, eps_h);
X            fprintf(tfp, "%d rotate\n", 180);
X            break;
X           case 270:
X            if (l->eps->flipped) break;
X            fprintf(tfp, "%d %d translate\n", eps_w, 0);
X            fprintf(tfp, "%d rotate\n", 90);
X            break;
X        }
X
X        /* translate the eps stuff so that the lower-left corner is at the origin */
X        fprintf(tfp, "%d %d translate\n", -llx, -lly);
X        /* save vm so eps file won't change anything */
X        fprintf(tfp, "save\n");
X        fprintf(tfp, "%% EPS file follows:\n");
X        epsf = fopen(l->eps->file, "r");
X        if (epsf == NULL) {
X            fprintf (stderr, "Unable to open eps file: %s, error: (%d)\n",
X                l->eps->file, sys_errlist[errno],errno);
X            fprintf(tfp, "gr\n");
X            return;
X        }
X        while (fgets(buf, sizeof(buf), epsf) != NULL) {
X            if (*buf == '%')        /* skip comment lines */
X                continue;
X            if ((cp=strstr(buf, "showpage")) != NULL)
X                strcpy (cp, cp+8);    /* remove showpage */
X            fputs(buf, tfp);
X        }
X        fclose (epsf);
X        /* restore vm and gsave */
X        fprintf(tfp, "restore gr\n");
X        fprintf(tfp, "%%\n");
X        fprintf(tfp, "%% End Imported EPS File: %s\n", l->eps->file);
X        fprintf(tfp, "%%\n");
X    }
X    else
X    {
X        p = l->points;
X        q = p->next;
X        fprintf(tfp, "n %d %d m", p->x, p->y);
X        while (q->next != NULL) {
X            p = q;
X            q = q->next;
X            fprintf(tfp, " %d %d l ", p->x, p->y);
X                 if (!((++i)%5))
X            fprintf(tfp, "\n");
X        }
X    }
X    if (l->type != T_EPS_BOX) {
X        if (l->type == T_POLYLINE)
X            fprintf(tfp, " %d %d l ", q->x, q->y);
X        else
X            fprintf(tfp, " clp ");
X        if (l->area_fill && (int)l->area_fill != DEFAULT)
X            fill_area(l->area_fill, l->color);
X        if (l->thickness > 0)
X             fprintf(tfp, "gs col%d s gr\n",
X                l->color > MAXCOLORS ? -1 : l->color);
X
X        reset_style(l->style, l->style_val);
X        if (l->for_arrow && l->thickness > 0)
X            draw_arrow_head((double)p->x, (double)p->y, (double)q->x,
X                (double)q->y, l->for_arrow->ht, l->for_arrow->wid,
X                l->color);
X    }
X    if (multi_page)
X       fprintf(tfp, "} bind def\n");
X    }
X
Xvoid genps_spline(s)
XF_spline    *s;
X{
X    if (multi_page)
X       fprintf(tfp, "/o%d {", no_obj++);
X    if (int_spline(s))
X        genps_itp_spline(s);
X    else
X        genps_ctl_spline(s);
X    if (multi_page)
X       fprintf(tfp, "} bind def\n");
X    }
X
Xgenps_itp_spline(s)
XF_spline    *s;
X{
X    F_point        *p, *q;
X    F_control    *a, *b;
X
X    set_linewidth(s->thickness);
X    a = s->controls;
X    p = s->points;
X    if (s->back_arrow && s->thickness > 0)
X        draw_arrow_head(a->rx, a->ry, (double)p->x,
X            (double)p->y, s->back_arrow->ht, s->back_arrow->wid,
X            s->color);
X
X    set_style(s->style, s->style_val);
X    fprintf(tfp, "%% Interpolated spline\n");
X    fprintf(tfp, "n %d %d m\n", p->x, p->y);
X    for (q = p->next; q != NULL; p = q, q = q->next) {
X        b = a->next;
X        fprintf(tfp, "\t%.3f %.3f %.3f %.3f %d %d curveto\n",
X            a->rx, a->ry, b->lx, b->ly, q->x, q->y);
X        a = b;
X        }
X    if (closed_spline(s)) fprintf(tfp, " clp ");
X    if (s->area_fill && (int)s->area_fill != DEFAULT)
X        fill_area(s->area_fill, s->color);
X    if (s->thickness > 0)
X        fprintf(tfp, "gs col%d s gr\n", s->color > MAXCOLORS ? -1 : s->color);
X    reset_style(s->style, s->style_val);
X
X    if (s->for_arrow && s->thickness > 0)
X        draw_arrow_head(a->lx, a->ly, (double)p->x,
X            (double)p->y, s->for_arrow->ht, s->for_arrow->wid,
X            s->color);
X    }
X
Xgenps_ctl_spline(s)
XF_spline    *s;
X{
X    double        a, b, c, d, x1, y1, x2, y2, x3, y3;
X    F_point        *p, *q;
X
X    /*
X    if (first) {
X        first = FALSE;
X        fprintf(tfp, "%s\n", SPLINE_PS);
X        }
X    */
X
X    p = s->points;
X    x1 = p->x; y1 = p->y;
X    p = p->next;
X    c = p->x; d = p->y;
X    set_linewidth(s->thickness);
X    x3 = a = (x1 + c) / 2;
X    y3 = b = (y1 + d) / 2;
X    if (s->back_arrow && s->thickness > 0) {
X        draw_arrow_head(c, d, x1, y1, s->back_arrow->ht, s->back_arrow->wid,
X                s->color);
X        }
X    set_style(s->style, s->style_val);
X    if (! closed_spline(s)) {
X        fprintf(tfp, "%% Open spline\n");
X        fprintf(tfp, "n %.3f %.3f m %.3f %.3f l\n",
X            x1, y1, x3, y3);
X        }
X    else {
X        fprintf(tfp, "%% Closed spline\n");
X        fprintf(tfp, "n %.3f %.3f m\n", a, b);
X        }
X    for (q = p->next; q != NULL; p = q, q = q->next) {
X        x1 = x3; y1 = y3;
X        x2 = c;  y2 = d;
X        c = q->x; d = q->y;
X        x3 = (x2 + c) / 2;
X        y3 = (y2 + d) / 2;
X        fprintf(tfp, "\t%.3f %.3f %.3f %.3f %.3f %.3f DrawSplineSection\n",
X            x1, y1, x2, y2, x3, y3);
X        }
X    /*
X    * At this point, (x2,y2) and (c,d) are the position of the
X    * next-to-last and last point respectively, in the point list
X    */
X    if (closed_spline(s)) {
X        fprintf(tfp, "\t%.3f %.3f %.3f %.3f %.3f %.3f DrawSplineSection closepath ",
X            x3, y3, c, d, a, b);
X        }
X    else {
X        fprintf(tfp, "\t%.3f %.3f l ", c, d);
X        }
X    if (s->area_fill && (int)s->area_fill != DEFAULT)
X        fill_area(s->area_fill, s->color);
X    if (s->thickness > 0)
X        fprintf(tfp, "gs col%d s gr\n", s->color > MAXCOLORS ? -1 : s->color);
X    reset_style(s->style, s->style_val);
X    if (s->for_arrow && s->thickness > 0) {
X        draw_arrow_head(x2, y2, c, d, s->for_arrow->ht,
X                s->for_arrow->wid, s->color);
X        }
X    }
X
Xvoid genps_ellipse(e)
XF_ellipse    *e;
X{
X    if (multi_page)
X       fprintf(tfp, "/o%d {", no_obj++);
X    set_linewidth(e->thickness);
X    set_style(e->style, e->style_val);
X    if (e->angle == 0)
X    {
X        fprintf(tfp, "%% Ellipse\n");
X        fprintf(tfp, "n %d %d %d %d 0 360 DrawEllipse ",
X          e->center.x, e->center.y, e->radiuses.x, e->radiuses.y);
X    }
X    else
X    {
X        fprintf(tfp, "%% Rotated Ellipse\n");
X        fprintf(tfp, "gs\n");
X        fprintf(tfp, "%d %d translate\n",e->center.x, e->center.y);
X        fprintf(tfp, "%6.3f rotate\n",-e->angle*180/M_PI);
X        fprintf(tfp, "n 0 0 %d %d 0 360 DrawEllipse ",
X         e->radiuses.x, e->radiuses.y);
X    }
X    if (e->area_fill && (int)e->area_fill != DEFAULT)
X        fill_area(e->area_fill, e->color);
X    if (e->thickness > 0)
X        fprintf(tfp, "gs col%d s gr\n", e->color > MAXCOLORS ? -1 : e->color);
X    if (e->angle != 0)
X        fprintf(tfp, "gr\n");
X    reset_style(e->style, e->style_val);
X    if (multi_page)
X       fprintf(tfp, "} bind def\n");
X    }
X
X#define    TEXT_PS        "\
X/%s%s findfont %.2f scalefont setfont\n\
X"
Xvoid genps_text(t)
XF_text    *t;
X{
X    unsigned char        *cp;
X
X    if (multi_page)
X       fprintf(tfp, "/o%d {", no_obj++);
X    if (PSisomap[t->font+1] == TRUE)
X       fprintf(tfp, TEXT_PS, PSFONT(t), "-iso", PSFONTMAG(t));
X    else
X       fprintf(tfp, TEXT_PS, PSFONT(t), "", PSFONTMAG(t));
X
X    fprintf(tfp, "%d %d m \ngs ", t->base_x,  t->base_y);
X    if (coord_system == 2) fprintf(tfp, "1 -1 scale ");
X
X    if (t->angle != 0)
X       fprintf(tfp, " %.1f rotate ", t->angle*180/M_PI);
X    /* this loop escapes characters '(', ')', and '\' */
X    fputc('(', tfp);
X    for(cp = (unsigned char *)t->cstring; *cp; cp++) {
X        if (strchr("()\\", *cp))
X        fputc('\\', tfp);
X        if (*cp>=0x80)
X        fprintf(tfp,"\\%o", *cp);
X        else
X        fputc(*cp, tfp);
X        }
X    fputc(')', tfp);
X
X    if ((t->type == T_CENTER_JUSTIFIED) || (t->type == T_RIGHT_JUSTIFIED)){
X
X          fprintf(tfp, " dup stringwidth pop ");
X        if (t->type == T_CENTER_JUSTIFIED) fprintf(tfp, "2 div ");
X        fprintf(tfp, "neg 0 rmoveto ");
X        }
X
X    else if ((t->type != T_LEFT_JUSTIFIED) && (t->type != DEFAULT))
X        fprintf(stderr, "Text incorrectly positioned\n");
X
X    fprintf(tfp, " col%d show gr\n", t->color > MAXCOLORS ? -1 : t->color);
X
X    if (multi_page)
X       fprintf(tfp, "} bind def\n");
X    }
X
Xvoid genps_arc(a)
XF_arc    *a;
X{
X    double        angle1, angle2, dx, dy, radius, x, y;
X    double        cx, cy, sx, sy, ex, ey;
X    int        direction;
X
X    if (multi_page)
X       fprintf(tfp, "/o%d {", no_obj++);
X    cx = a->center.x; cy = a->center.y;
X    sx = a->point[0].x; sy = a->point[0].y;
X    ex = a->point[2].x; ey = a->point[2].y;
X
X    if (coord_system == 2)
X        direction = !a->direction;
X    else
X        direction = a->direction;
X    set_linewidth(a->thickness);
X    if (a->for_arrow && a->thickness > 0) {
X        arc_tangent(cx, cy, ex, ey, direction, &x, &y);
X        draw_arrow_head(x, y, ex, ey, a->for_arrow->ht, a->for_arrow->wid, a->color);
X        }
X    if (a->back_arrow && a->thickness > 0) {
X        arc_tangent(cx, cy, sx, sy, !direction, &x, &y);
X        draw_arrow_head(x, y, sx, sy, a->back_arrow->ht, a->back_arrow->wid, a->color);
X        }
X    dx = cx - sx;
X    dy = cy - sy;
X    radius = sqrt(dx*dx+dy*dy);
X    angle1 = atan2(sy-cy, sx-cx) * 180 / M_PI;
X    angle2 = atan2(ey-cy, ex-cx) * 180 / M_PI;
X    /* direction = 1 -> Counterclockwise */
X    set_style(a->style, a->style_val);
X    fprintf(tfp, "n %.3f %.3f %.3f %.3f %.3f %s\n",
X        cx, cy, radius, angle1, angle2,
X        ((direction == 1) ? "arc" : "arcn"));
X    if (a->area_fill && (int)a->area_fill != DEFAULT)
X        fill_area(a->area_fill, a->color);
X    if (a->thickness > 0)
X        fprintf(tfp, "gs col%d s gr\n", a->color > MAXCOLORS ? -1 : a->color);
X    reset_style(a->style, a->style_val);
X    if (multi_page)
X       fprintf(tfp, "} bind def\n");
X    }
X
Xstatic arc_tangent(x1, y1, x2, y2, direction, x, y)
Xdouble    x1, y1, x2, y2, *x, *y;
Xint    direction;
X{
X    if (direction) { /* counter clockwise  */
X        *x = x2 + (y2 - y1);
X        *y = y2 - (x2 - x1);
X        }
X    else {
X        *x = x2 - (y2 - y1);
X        *y = y2 + (x2 - x1);
X        }
X    }
X
X/*    draw arrow heading from (x1, y1) to (x2, y2)    */
X
Xstatic draw_arrow_head(x1, y1, x2, y2, arrowht, arrowwid, col)
Xdouble    x1, y1, x2, y2, arrowht, arrowwid;
Xint col;
X{
X    double    x, y, xb, yb, dx, dy, l, sina, cosa;
X    double    xc, yc, xd, yd;
X
X    dx = x2 - x1;  dy = y1 - y2;
X    l = sqrt(dx*dx+dy*dy);
X    if (l == 0) {
X         return;
X    }
X    else {
X         sina = dy / l;  cosa = dx / l;
X    }
X    xb = x2*cosa - y2*sina;
X    yb = x2*sina + y2*cosa;
X    x = xb - arrowht;
X    y = yb - arrowwid / 2;
X    xc = x*cosa + y*sina;
X    yc = -x*sina + y*cosa;
X    y = yb + arrowwid / 2;
X    xd = x*cosa + y*sina;
X    yd = -x*sina + y*cosa;
X    fprintf(tfp, "n %.3f %.3f m %.3f %.3f l %.3f %.3f l gs 2 setlinejoin col%d s gr\n", xc, yc, x2, y2, xd, yd, col > MAXCOLORS ? -1 : col);
X    }
X
Xstatic fill_area(fill, color)
Xint fill, color;
X{
X   if (color < 1)   /* use gray levels for default and black */
X    fprintf(tfp, "gs %.2f setgray fill gr\n", 1.0 - GRAYVAL(fill));
X   else
X    fprintf(tfp, "gs col%d %.2f graycol fill gr ",
X        color > MAXCOLORS ? -1 : color, GRAYVAL(fill));
X}
X
Xstatic iso_text_exist(ob)
XF_compound      *ob;
X{
X   F_compound    *c;
X   F_text          *t;
X   unsigned char   *s;
X
X   if (ob->texts != NULL)
X   {
X      for (t = ob->texts; t != NULL; t = t->next)
X      {
X     for (s = (unsigned char*)t->cstring; *s != '\0'; s++)
X     {
X        /* look for characters >= 128 */
X        if (*s>127) return(1);
X     }
X      }
X   }
X
X   for (c = ob->compounds; c != NULL; c = c->next) {
X       if (iso_text_exist(c)) return(1);
X       }
X   return(0);
X}
X
Xstatic encode_all_fonts(ob)
XF_compound    *ob;
X{
X   F_compound *c;
X   F_text     *t;
X
X   if (ob->texts != NULL)
X   {
X    for (t = ob->texts; t != NULL; t = t->next)
X        if (PSisomap[t->font+1] == FALSE)
X        {
X        fprintf(tfp, "/%s /%s-iso isovec ReEncode\n", PSFONT(t), PSFONT(t));
X        PSisomap[t->font+1] = TRUE;
X        }
X   }
X
X   for (c = ob->compounds; c != NULL; c = c->next)
X   {
X    encode_all_fonts(c);
X   }
X}
X
Xstatic ellipse_exist(ob)
XF_compound    *ob;
X{
X    F_compound    *c;
X
X    if (NULL != ob->ellipses) return(1);
X
X    for (c = ob->compounds; c != NULL; c = c->next) {
X        if (ellipse_exist(c)) return(1);
X        }
X
X    return(0);
X    }
X
Xstatic normal_spline_exist(ob)
XF_compound    *ob;
X{
X    F_spline    *s;
X    F_compound    *c;
X
X    for (s = ob->splines; s != NULL; s = s->next) {
X        if (normal_spline(s)) return(1);
X        }
X
X    for (c = ob->compounds; c != NULL; c = c->next) {
X        if (normal_spline_exist(c)) return(1);
X        }
X
X    return(0);
X    }
X
Xstruct driver dev_ps = {
X         genps_option,
X    genps_start,
X    genps_arc,
X    genps_ellipse,
X    genps_line,
X    genps_spline,
X    genps_text,
X    genps_end,
X    INCLUDE_TEXT
X};
END_OF_FILE
if test 28838 -ne `wc -c <'fig2dev/dev/genps.c'`; then
    echo shar: \"'fig2dev/dev/genps.c'\" unpacked with wrong size!
fi
# end of 'fig2dev/dev/genps.c'
fi
echo shar: End of archive 7 \(of 7\).
cp /dev/null ark7isdone
MISSING=""
for I in 1 2 3 4 5 6 7 ; do
    if test ! -f ark${I}isdone ; then
    MISSING="${MISSING} ${I}"
    fi
done
if test "${MISSING}" = "" ; then
    echo You have unpacked all 7 archives.
    rm -f ark[1-9]isdone
else
    echo You still need to unpack the following archives:
    echo "        " ${MISSING}
fi
##  End of shell archive.
exit 0