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#ifndef lint |
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static const char RCSid[] = "$Id: plotout.c,v 1.2 2003/07/01 21:21:40 greg 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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|
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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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|
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|
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|
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|
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#include <fcntl.h> |
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|
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#include "rtprocess.h" |
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#include "meta.h" |
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|
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|
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|
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|
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char *progname; |
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|
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static short newpage = TRUE; |
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|
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static int curx = -1, /* current position */ |
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cury = -1; |
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|
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static short curmod = -1; /* current line drawing mode */ |
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|
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static char lmode[4][16] = {"solid", "shortdashed", |
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"dotted", "dotdashed"}; |
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|
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static PRIMITIVE nextp; |
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|
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|
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|
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main(argc, argv) |
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|
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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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|
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progname = *argv++; |
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argc--; |
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|
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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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|
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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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|
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return(0); |
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} |
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|
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|
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|
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|
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|
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plot(infp) /* plot meta-file */ |
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|
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FILE *infp; |
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|
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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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|
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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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|
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closepl(); |
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|
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} |
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|
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|
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|
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|
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|
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doglobal(g) /* execute a global command */ |
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|
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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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|
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switch (g->com) { |
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|
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case PEOF: |
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break; |
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|
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case PDRAW: |
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fflush(stdout); |
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break; |
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|
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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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|
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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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|
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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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} |
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|
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|
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|
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|
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doprim(p) /* plot primitive */ |
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|
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register PRIMITIVE *p; |
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|
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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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|
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switch (p->com) { |
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|
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case PLSEG: |
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plotlseg(p); |
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break; |
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|
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case PMSTR: |
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printstr(p); |
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break; |
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|
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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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} |
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|
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|
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|
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|
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|
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|
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printstr(p) /* output a string */ |
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|
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register PRIMITIVE *p; |
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|
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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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} |
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|
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|
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|
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|
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|
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plotlseg(p) /* plot a line segment */ |
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|
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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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|
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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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|
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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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|
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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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} |
