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#ifndef lint
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static const char RCSid[] = "$Id: plotout.c,v 1.3 2003/10/27 10:28:59 schorsch Exp $";
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#endif
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/*
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* Program to send meta-files to plot(3X) drivers
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*
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* cc -o plotout plotout.c mfio.o syscalls.o misc.o -lplot
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*
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* Plot drivers
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*/
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#ifdef FORTEK
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#define XCOM "pexpand +vOCIsm -rtpSUR %s"
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#else
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#define XCOM "pexpand +vOCIs -rtpSUR %s"
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#endif
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#include <fcntl.h>
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#include "rtprocess.h"
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#include "meta.h"
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#include "plot.h"
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#include "lib4014/lib4014.h"
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char *progname;
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static short newpage = TRUE;
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static int curx = -1, /* current position */
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cury = -1;
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static short curmod = -1; /* current line drawing mode */
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static char lmode[4][16] = {"solid", "shortdashed",
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"dotted", "dotdashed"};
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static PRIMITIVE nextp;
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static void doglobal(PRIMITIVE *g);
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static void doprim(register PRIMITIVE *p);
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int
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main(
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int argc,
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char **argv
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)
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{
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FILE *fp;
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char comargs[200], command[300];
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short condonly = FALSE, conditioned = FALSE;
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progname = *argv++;
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argc--;
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while (argc && **argv == '-') {
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switch (*(*argv+1)) {
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case 'c':
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condonly = TRUE;
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break;
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case 'r':
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conditioned = TRUE;
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break;
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default:
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error(WARNING, "unknown option");
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break;
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}
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argv++;
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argc--;
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}
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if (conditioned)
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if (argc)
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while (argc) {
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fp = efopen(*argv, "r");
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plot(fp);
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fclose(fp);
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argv++;
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argc--;
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}
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else
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plot(stdin);
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else {
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comargs[0] = '\0';
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while (argc) {
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strcat(comargs, " ");
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strcat(comargs, *argv);
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argv++;
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argc--;
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}
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sprintf(command, XCOM, comargs);
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if (condonly)
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return(system(command));
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else {
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if ((fp = popen(command, "r")) == NULL)
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error(SYSTEM, "cannot execute input filter");
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plot(fp);
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pclose(fp);
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}
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}
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return(0);
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}
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void
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plot( /* plot meta-file */
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FILE *infp
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)
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{
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openpl();
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space(0, 0, XYSIZE, XYSIZE);
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do {
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readp(&nextp, infp);
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while (isprim(nextp.com)) {
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doprim(&nextp);
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fargs(&nextp);
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readp(&nextp, infp);
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}
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doglobal(&nextp);
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fargs(&nextp);
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} while (nextp.com != PEOF);
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closepl();
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}
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void
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doglobal( /* execute a global command */
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PRIMITIVE *g
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)
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{
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int tty;
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char c;
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switch (g->com) {
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case PEOF:
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break;
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case PDRAW:
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fflush(stdout);
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break;
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case PEOP:
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newpage = TRUE;
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if (!isatty(fileno(stdout)))
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break;
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/* fall through */
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case PPAUS:
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fflush(stdout);
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tty = open(TTY, O_RDWR);
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if (g->args != NULL) {
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write(tty, g->args, strlen(g->args));
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write(tty, " - (hit return to continue)", 27);
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} else
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write(tty, "\007", 1);
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do {
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c = '\n';
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read(tty, &c, 1);
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} while (c != '\n' && c != '\r');
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close(tty);
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break;
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default:
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sprintf(errmsg, "unknown command '%c' in doglobal", g->com);
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error(WARNING, errmsg);
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break;
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}
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}
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void
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doprim( /* plot primitive */
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register PRIMITIVE *p
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)
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{
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if (newpage) {
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erase();
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newpage = FALSE;
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}
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switch (p->com) {
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case PLSEG:
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plotlseg(p);
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break;
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case PMSTR:
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printstr(p);
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break;
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default:
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sprintf(errmsg, "unknown command '%c' in doprim", p->com);
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error(WARNING, errmsg);
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return;
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}
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}
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void
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printstr( /* output a string */
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register PRIMITIVE *p
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)
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{
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move(p->xy[XMN], p->xy[YMX]);
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label(p->args);
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curx = -1;
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cury = -1;
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}
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void
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plotlseg( /* plot a line segment */
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register PRIMITIVE *p
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)
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{
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static short right = FALSE;
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int y1, y2;
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short lm = (p->arg0 >> 4) & 03;
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if (p->arg0 & 0100) {
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y1 = p->xy[YMX];
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y2 = p->xy[YMN];
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} else {
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y1 = p->xy[YMN];
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y2 = p->xy[YMX];
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}
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if (lm != curmod) {
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linemod(lmode[lm]);
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curmod = lm;
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}
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if (p->xy[XMN] == curx && y1 == cury) {
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cont(p->xy[XMX], y2);
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curx = p->xy[XMX];
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cury = y2;
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} else if (p->xy[XMX] == curx && y2 == cury) {
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cont(p->xy[XMN], y1);
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curx = p->xy[XMN];
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cury = y1;
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} else if ((right = !right)) {
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line(p->xy[XMN], y1, p->xy[XMX], y2);
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curx = p->xy[XMX];
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cury = y2;
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} else {
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line(p->xy[XMX], y2, p->xy[XMN], y1);
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curx = p->xy[XMN];
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cury = y1;
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}
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}
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