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#ifndef lint
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static const char RCSid[] = "$Id: tbar.c,v 1.5 2003/11/15 02:13:37 schorsch Exp $";
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#endif
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/*
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* PROGRAM TO PLOT TEL-A-GRAF POINTS TO METAFILE
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*
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* Greg Ward
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* 12/12/84
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*
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* cc -o ../tbar tbar.c tgraph.o primout.o mfio.o syscalls.o misc.o -lm
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*/
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#include "rtprocess.h" /* getpid() */
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#include "tgraph.h"
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#include "plot.h"
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#define XLEGEND (XBEG+XSIZ+4*TSIZ) /* x start of legend */
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#define YLEGEND (YBEG+2*YSIZ/3) /* y start of legend */
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#define MAXBAR 1000 /* maximum bar width */
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short usecurve[NCUR]; /* booleans for curve usage */
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double xmin, ymin, xmax, ymax; /* domain */
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double xsize, ysize; /* axis dimensions */
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double xmnset = -FHUGE, xmxset = FHUGE, /* domain settings */
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ymnset = -FHUGE, ymxset = FHUGE;
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short logx = FALSE, logy = FALSE; /* flags for log plots */
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short polar = FALSE; /* flag for polar plots */
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short grid = FALSE; /* flag for grid */
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int curtype[NCUR] = {0, 04, 010, 014, 01, 05, 011, 015,
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02, 06, 012, 016, 03, 07, 013, 017};
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int ncurves;
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int xlegend,
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ylegend; /* current legend position */
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int symrad = SYMRAD; /* symbol radius */
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char *progname;
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static void barout(int cn, double x, double y);
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static void boxout(int a0, int xmn, int ymn, int xmx, int ymx);
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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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* Take Tel-A-Graf runnable files and convert them to
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* metafile primitives to send to standard output
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*/
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{
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char tfname[MAXFNAME];
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FILE *fp;
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int axflag;
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progname = *argv++;
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argc--;
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initialize();
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for (; argc && (**argv == '-' || **argv == '+'); argc--, argv++)
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option(*argv);
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polar = FALSE; /* override stupid choices */
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logx = FALSE;
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axflag = BOX|ORIGIN|YTICS|YNUMS;
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if (grid)
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axflag |= YGRID;
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if (argc)
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for ( ; argc--; argv++) {
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fp = efopen(*argv, "r");
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normalize(fp, NULL);
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if (ymin > 0)
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ymin = 0;
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else if (ymax < 0)
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ymax = 0;
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xmax++;
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makeaxis(axflag);
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fseek(fp, 0L, 0);
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plot(fp);
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fclose(fp);
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}
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else {
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sprintf(tfname, "%stb%d", TDIR, getpid());
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fp = efopen(tfname, "w+");
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normalize(stdin, fp);
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if (ymin > 0)
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ymin = 0;
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else if (ymax < 0)
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ymax = 0;
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xmax++;
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makeaxis(axflag);
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fseek(fp, 0L, 0);
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plot(fp);
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fclose(fp);
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unlink(tfname);
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}
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pglob(PEOF, 0200, NULL);
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return(0);
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}
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void
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plot( /* read file and generate plot */
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FILE *fp
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)
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{
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int ncur = 0; /* curves seen so far */
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char line[255], *s;
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double x, y;
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xlegend = XLEGEND;
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ylegend = YLEGEND;
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if (ncurves > 0) {
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pprim(PMSTR, 0100, xlegend, ylegend+800, xlegend, ylegend+800, "Legend:");
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pprim(PMSTR, 0100, xlegend, ylegend+800, xlegend, ylegend+800, "______");
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}
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while (fgets(line, sizeof line, fp) != NULL)
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if (istitle(line)) {
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s = snagquo(line);
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boxstring(0, 0, YBEG+YSIZ+1000, XYSIZE-1, YBEG+YSIZ+1500, s);
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}
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else if (isdivlab(line)) {
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s = line;
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x = 1;
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while ((s = snagquo(s)) != NULL) {
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if (x >= xmin && x <= xmax)
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boxstring(0, XCONV(x), YBEG-750, XCONV(x+0.66), YBEG-400, s);
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s += strlen(s)+1;
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x++;
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}
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}
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else if (isxlabel(line)) {
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s = snagquo(line);
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boxstring(0, XBEG, YBEG-1250, XBEG+XSIZ, YBEG-900, s);
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}
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else if (isylabel(line)) {
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s = snagquo(line);
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boxstring(020, XBEG-1900, YBEG, XBEG-1550, YBEG+YSIZ, s);
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}
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else if (islabel(line)) {
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if (++ncur < NCUR && usecurve[ncur]) {
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boxout(curtype[ncur], xlegend-200, ylegend, xlegend+200, ylegend+250);
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pprim(PMSTR, 020, xlegend+400, ylegend+200,
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xlegend+400, ylegend+200, snagquo(line));
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ylegend -= 500;
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}
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}
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else if (usecurve[ncur] && isdata(line)) {
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if (getdata(line, &x, &y) >= 0)
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barout(ncur, x, y);
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}
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pglob(PEOP, 0200, NULL);
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}
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void
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barout( /* output bar for curve cn, value (x,y) */
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int cn,
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double x,
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double y
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)
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{
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int barleft, barwidth;
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int barlower, barheight;
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barwidth = XSIZ/xsize/(ncurves+1)*0.66;
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if (barwidth > MAXBAR)
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barwidth = MAXBAR;
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barleft = XCONV(x) + cn*barwidth;
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if (y < 0.0) {
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barlower = YCONV(y);
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barheight = YCONV(0.0) - barlower;
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} else {
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barlower = YCONV(0.0);
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barheight = YCONV(y) - barlower;
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}
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boxout(curtype[cn], barleft, barlower,
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barleft+barwidth, barlower+barheight);
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}
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void
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boxout( /* output a box */
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int a0,
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int xmn,
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int ymn,
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int xmx,
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int ymx
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)
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{
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pprim(PRFILL, a0, xmn, ymn, xmx, ymx, NULL);
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plseg(0, xmn, ymn, xmx, ymn);
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plseg(0, xmn, ymn, xmn, ymx);
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plseg(0, xmn, ymx, xmx, ymx);
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plseg(0, xmx, ymn, xmx, ymx);
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}
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