src/meta/tcurve.c

#ifndef lint
static const char       RCSid[] = "$Id$";
#endif
/*
 *       PROGRAM TO PLOT TEL-A-GRAF CURVES TO METAFILE
 *
 *              Greg Ward
 *              12/12/84
 *
 *      cc -o ../tcurve tcurve.c tgraph.o primout.o mfio.o syscalls.o misc.o -lm
 */

#include  "tgraph.h"

#define  XLEGEND  (XBEG+XSIZ+4*TSIZ)    /* x start of legend */

#define  YLEGEND  (YBEG+2*YSIZ/3)       /* y start of legend */

short  usecurve[NCUR];          /* booleans for curve usage */

double  xmin, ymin, xmax, ymax;         /* domain */

double  xsize, ysize;                   /* axis dimensions */

double  xmnset = -FHUGE, xmxset = FHUGE,        /* domain settings */
        ymnset = -FHUGE, ymxset = FHUGE;

short  logx = FALSE, logy = FALSE;      /* flags for log plots */

short  polar = FALSE;                   /* flag for polar plot */
       
short  grid = FALSE;                    /* flag for grid */

int    curtype[NCUR] = {0, 020, 040, 060, 01, 021, 041, 061,
                         02, 022, 042, 062, 03, 023, 043, 063};

char   *sym[NCUR] = {"ex", "triangle", "square", "triangle2", "diamond",
                        "cross", "octagon", "crosssquare", "exsquare",
                        "trianglesquare", "triangle2square", "crossdiamond",
                        "crossoctagon", "exoctagon", "block", "bullet"};
                       
int    ncurves;

int    xlegend,
       ylegend;                         /* current legend position */

int    symrad = SYMRAD;                 /* symbol radius */ 

char  *progname;


main(argc, argv)

int  argc;
char  **argv;

/*
 *     Take Tel-A-Graf runnable files and convert them to
 *  metafile primitives to send to standard output
 */

{
 char  tfname[MAXFNAME];
 FILE  *fp;
 int  axflag;

#ifdef  CPM
 fixargs("tcurve", &argc, &argv);
#endif

 progname = *argv++;
 argc--;

 initialize();

 for (; argc && (**argv == '-' || **argv == '+'); argc--, argv++)
    option(*argv);

 if (polar)                     /* avoid dumb choices */
    logx = FALSE;

 axflag = XTICS|XNUMS|YTICS|YNUMS;
 if (grid)
    axflag |= XGRID|YGRID;
 if (polar)
    axflag |= ORIGIN;
 else
    axflag |= BOX;

 pglob(PINCL, 2, "symbols.mta");

 if (argc)

    for ( ; argc--; argv++)  {

       fp = efopen(*argv, "r");
       normalize(fp, NULL);
       makeaxis(axflag);
       fseek(fp, 0L, 0);
       plot(fp);
       fclose(fp);
       }
 else  {

    sprintf(tfname, "%stc%d", TDIR, getpid());
    fp = efopen(tfname, "w+");
    normalize(stdin, fp);
    makeaxis(axflag);
    fseek(fp, 0L, 0);
    plot(fp);
    fclose(fp);
    unlink(tfname);
    }

 pglob(PEOF, 0200, NULL);

 return(0);
 }


plot(fp)                        /* read file and generate plot */

FILE  *fp;

{
 int  ncur = 0;                 /* curves seen so far */
 int  cur = 0;                  /* current curve pattern */
 char  line[255], *s;
 double  x, y;
 double lastx, lasty;
 short  oobounds = FALSE, firstpoint = TRUE;

 xlegend = XLEGEND;
 ylegend = YLEGEND;

 if (ncurves > 0) {
    pprim(PMSTR, 0100, xlegend, ylegend+800, xlegend, ylegend+800, "Legend:");
    pprim(PMSTR, 0100, xlegend, ylegend+800, xlegend, ylegend+800, "______");
    }

 while (fgets(line, sizeof line, fp) != NULL)

    if (istitle(line)) {
       s = snagquo(line);
       boxstring(0, 0, YBEG+YSIZ+1000, XYSIZE-1, YBEG+YSIZ+1500, s);
       }

    else if (isxlabel(line)) {
       s = snagquo(line);
       boxstring(0, XBEG, YBEG-1250, XBEG+XSIZ, YBEG-900, s);
       }

    else if (isylabel(line)) {
       s = snagquo(line);
       boxstring(020, XBEG-1900, YBEG, XBEG-1550, YBEG+YSIZ, s);
       }

    else if (islabel(line)) {
       if (++ncur < NCUR && usecurve[ncur]) {
          oobounds = FALSE;
          firstpoint = TRUE;
          cur++;
          plseg(curtype[cur], xlegend, ylegend, xlegend+2000, ylegend);
          symout(curtype[cur] & 03, xlegend, ylegend, sym[ncur]);
          pprim(PMSTR, 020, xlegend+400, ylegend+200,
                      xlegend+400, ylegend+200, snagquo(line));
          ylegend -= 500;
          }
       }
       
    else if (isdata(line) && usecurve[ncur])  {

       if (getdata(line, &x, &y) >= 0) {

          if (oobounds) {
             oobounds = FALSE;
             limline(curtype[cur], x, y, lastx, lasty, sym[ncur]);
             }
          else if (firstpoint) {
             firstpoint = FALSE;
             limline(curtype[cur], x, y, x, y, sym[ncur]);
             }
          else
             plseg(curtype[cur], XCONV(lastx), YCONV(lasty),
                                 XCONV(x), YCONV(y));

          lastx = x;
          lasty = y;

          }
       else {
          if (!oobounds) {
             oobounds = TRUE;
             if (firstpoint)
                firstpoint = FALSE;
             else
                limline(curtype[cur], lastx, lasty, x, y, NULL);
             }
          lastx = x;
          lasty = y;
          }

       }

 pglob(PEOP, 0200, NULL);

 }


limline(a0, x, y, xout, yout, s)        /* print line from/to out of bounds */

int  a0;
double  x, y, xout, yout;
char  *s;

{

    for ( ; ; )
        if (xout < xmin) {
            yout = (yout - y)*(xmin - x)/(xout - x) + y;
            xout = xmin;
        } else if (yout < ymin) {
            xout = (xout - x)*(ymin - y)/(yout - y) + x;
            yout = ymin;
        } else if (xout > xmax) {
            yout = (yout - y)*(xmax - x)/(xout - x) + y;
            xout = xmax;
        } else if (yout > ymax) {
            xout = (xout - x)*(ymax - y)/(yout - y) + x;
            yout = ymax;
        } else {
            if (s != NULL)
                symout(a0 & 03, XCONV(xout), YCONV(yout), s);
            plseg(a0, XCONV(x), YCONV(y), XCONV(xout), YCONV(yout));
            return;
        }        

}
Revision:	1.1
Committed:	Sat Feb 22 02:07:26 2003 UTC (21 years, 2 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad3R5
Log Message:	Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2			static const char RCSid[] = "$Id$";
3			#endif
4			/*
5			* PROGRAM TO PLOT TEL-A-GRAF CURVES TO METAFILE
6			*
7			* Greg Ward
8			* 12/12/84
9			*
10			* cc -o ../tcurve tcurve.c tgraph.o primout.o mfio.o syscalls.o misc.o -lm
11			*/
12
13			#include "tgraph.h"
14
15			#define XLEGEND (XBEG+XSIZ+4TSIZ) / x start of legend */
16
17			#define YLEGEND (YBEG+2YSIZ/3) / y start of legend */
18
19			short usecurve[NCUR]; /* booleans for curve usage */
20
21			double xmin, ymin, xmax, ymax; /* domain */
22
23			double xsize, ysize; /* axis dimensions */
24
25			double xmnset = -FHUGE, xmxset = FHUGE, /* domain settings */
26			ymnset = -FHUGE, ymxset = FHUGE;
27
28			short logx = FALSE, logy = FALSE; /* flags for log plots */
29
30			short polar = FALSE; /* flag for polar plot */
31
32			short grid = FALSE; /* flag for grid */
33
34			int curtype[NCUR] = {0, 020, 040, 060, 01, 021, 041, 061,
35			02, 022, 042, 062, 03, 023, 043, 063};
36
37			char *sym[NCUR] = {"ex", "triangle", "square", "triangle2", "diamond",
38			"cross", "octagon", "crosssquare", "exsquare",
39			"trianglesquare", "triangle2square", "crossdiamond",
40			"crossoctagon", "exoctagon", "block", "bullet"};
41
42			int ncurves;
43
44			int xlegend,
45			ylegend; /* current legend position */
46
47			int symrad = SYMRAD; /* symbol radius */
48
49			char *progname;
50
51
52
53
54
55			main(argc, argv)
56
57			int argc;
58			char **argv;
59
60			/*
61			* Take Tel-A-Graf runnable files and convert them to
62			* metafile primitives to send to standard output
63			*/
64
65			{
66			char tfname[MAXFNAME];
67			FILE *fp;
68			int axflag;
69
70			#ifdef CPM
71			fixargs("tcurve", &argc, &argv);
72			#endif
73
74			progname = *argv++;
75			argc--;
76
77			initialize();
78
79			for (; argc && (argv == '-' \|\| argv == '+'); argc--, argv++)
80			option(*argv);
81
82			if (polar) /* avoid dumb choices */
83			logx = FALSE;
84
85			axflag = XTICS\|XNUMS\|YTICS\|YNUMS;
86			if (grid)
87			axflag \|= XGRID\|YGRID;
88			if (polar)
89			axflag \|= ORIGIN;
90			else
91			axflag \|= BOX;
92
93			pglob(PINCL, 2, "symbols.mta");
94
95			if (argc)
96
97			for ( ; argc--; argv++) {
98
99			fp = efopen(*argv, "r");
100			normalize(fp, NULL);
101			makeaxis(axflag);
102			fseek(fp, 0L, 0);
103			plot(fp);
104			fclose(fp);
105			}
106			else {
107
108			sprintf(tfname, "%stc%d", TDIR, getpid());
109			fp = efopen(tfname, "w+");
110			normalize(stdin, fp);
111			makeaxis(axflag);
112			fseek(fp, 0L, 0);
113			plot(fp);
114			fclose(fp);
115			unlink(tfname);
116			}
117
118			pglob(PEOF, 0200, NULL);
119
120			return(0);
121			}
122
123
124
125
126
127
128			plot(fp) /* read file and generate plot */
129
130			FILE *fp;
131
132			{
133			int ncur = 0; /* curves seen so far */
134			int cur = 0; /* current curve pattern */
135			char line[255], *s;
136			double x, y;
137			double lastx, lasty;
138			short oobounds = FALSE, firstpoint = TRUE;
139
140			xlegend = XLEGEND;
141			ylegend = YLEGEND;
142
143			if (ncurves > 0) {
144			pprim(PMSTR, 0100, xlegend, ylegend+800, xlegend, ylegend+800, "Legend:");
145			pprim(PMSTR, 0100, xlegend, ylegend+800, xlegend, ylegend+800, "______");
146			}
147
148			while (fgets(line, sizeof line, fp) != NULL)
149
150			if (istitle(line)) {
151			s = snagquo(line);
152			boxstring(0, 0, YBEG+YSIZ+1000, XYSIZE-1, YBEG+YSIZ+1500, s);
153			}
154
155			else if (isxlabel(line)) {
156			s = snagquo(line);
157			boxstring(0, XBEG, YBEG-1250, XBEG+XSIZ, YBEG-900, s);
158			}
159
160			else if (isylabel(line)) {
161			s = snagquo(line);
162			boxstring(020, XBEG-1900, YBEG, XBEG-1550, YBEG+YSIZ, s);
163			}
164
165			else if (islabel(line)) {
166			if (++ncur < NCUR && usecurve[ncur]) {
167			oobounds = FALSE;
168			firstpoint = TRUE;
169			cur++;
170			plseg(curtype[cur], xlegend, ylegend, xlegend+2000, ylegend);
171			symout(curtype[cur] & 03, xlegend, ylegend, sym[ncur]);
172			pprim(PMSTR, 020, xlegend+400, ylegend+200,
173			xlegend+400, ylegend+200, snagquo(line));
174			ylegend -= 500;
175			}
176			}
177
178			else if (isdata(line) && usecurve[ncur]) {
179
180			if (getdata(line, &x, &y) >= 0) {
181
182			if (oobounds) {
183			oobounds = FALSE;
184			limline(curtype[cur], x, y, lastx, lasty, sym[ncur]);
185			}
186			else if (firstpoint) {
187			firstpoint = FALSE;
188			limline(curtype[cur], x, y, x, y, sym[ncur]);
189			}
190			else
191			plseg(curtype[cur], XCONV(lastx), YCONV(lasty),
192			XCONV(x), YCONV(y));
193
194			lastx = x;
195			lasty = y;
196
197			}
198			else {
199			if (!oobounds) {
200			oobounds = TRUE;
201			if (firstpoint)
202			firstpoint = FALSE;
203			else
204			limline(curtype[cur], lastx, lasty, x, y, NULL);
205			}
206			lastx = x;
207			lasty = y;
208			}
209
210			}
211
212			pglob(PEOP, 0200, NULL);
213
214			}
215
216
217
218
219
220			limline(a0, x, y, xout, yout, s) /* print line from/to out of bounds */
221
222			int a0;
223			double x, y, xout, yout;
224			char *s;
225
226			{
227
228			for ( ; ; )
229			if (xout < xmin) {
230			yout = (yout - y)*(xmin - x)/(xout - x) + y;
231			xout = xmin;
232			} else if (yout < ymin) {
233			xout = (xout - x)*(ymin - y)/(yout - y) + x;
234			yout = ymin;
235			} else if (xout > xmax) {
236			yout = (yout - y)*(xmax - x)/(xout - x) + y;
237			xout = xmax;
238			} else if (yout > ymax) {
239			xout = (xout - x)*(ymax - y)/(yout - y) + x;
240			yout = ymax;
241			} else {
242			if (s != NULL)
243			symout(a0 & 03, XCONV(xout), YCONV(yout), s);
244			plseg(a0, XCONV(x), YCONV(y), XCONV(xout), YCONV(yout));
245			return;
246			}
247
248			}