src/meta/plotout.c

#ifndef lint
static const char       RCSid[] = "$Id: plotout.c,v 1.2 2003/07/01 21:21:40 greg Exp $";
#endif
/*
 *  Program to send meta-files to plot(3X) drivers
 *
 *  cc -o plotout plotout.c mfio.o syscalls.o misc.o -lplot
 *
 *  Plot drivers
 */


#ifdef  FORTEK
#define  XCOM  "pexpand +vOCIsm -rtpSUR %s"
#else
#define  XCOM  "pexpand +vOCIs -rtpSUR %s"
#endif


#include  <fcntl.h>

#include  "rtprocess.h"
#include  "meta.h"


char  *progname;

static short  newpage = TRUE; 

static int  curx = -1,          /* current position */
            cury = -1;

static short  curmod = -1;      /* current line drawing mode */

static char  lmode[4][16] = {"solid", "shortdashed",
                             "dotted", "dotdashed"};

static PRIMITIVE  nextp;


main(argc, argv)

int  argc;
char  **argv;

{
 FILE  *fp;
 char  comargs[200], command[300];
 short  condonly = FALSE, conditioned = FALSE;

 progname = *argv++;
 argc--;

 while (argc && **argv == '-')  {
    switch (*(*argv+1))  {
       case 'c':
          condonly = TRUE;
          break;
       case 'r':
          conditioned = TRUE;
          break;
       default:
          error(WARNING, "unknown option");
          break;
       }
    argv++;
    argc--;
    }

 if (conditioned)
    if (argc)
       while (argc)  {
          fp = efopen(*argv, "r");
          plot(fp);
          fclose(fp);
          argv++;
          argc--;
          }
    else
       plot(stdin);
 else  {
    comargs[0] = '\0';
    while (argc)  {
       strcat(comargs, " ");
       strcat(comargs, *argv);
       argv++;
       argc--;
       }
    sprintf(command, XCOM, comargs);
    if (condonly)
       return(system(command));
    else  {
       if ((fp = popen(command, "r")) == NULL)
          error(SYSTEM, "cannot execute input filter");
       plot(fp);
       pclose(fp);
       }
    }

 return(0);
 }


plot(infp)              /* plot meta-file */

FILE  *infp;

{

    openpl();
    space(0, 0, XYSIZE, XYSIZE);

    do {
        readp(&nextp, infp);
        while (isprim(nextp.com)) {
            doprim(&nextp);
            fargs(&nextp);
            readp(&nextp, infp);
        }
        doglobal(&nextp);
        fargs(&nextp);
    } while (nextp.com != PEOF);

    closepl();

}


doglobal(g)                     /* execute a global command */

PRIMITIVE  *g;

{
    int  tty;
    char  c;

    switch (g->com) {

        case PEOF:
            break;

        case PDRAW:
            fflush(stdout);
            break;

        case PEOP:
            newpage = TRUE;
            if (!isatty(fileno(stdout)))
                break;
        /* fall through */

        case PPAUS:
            fflush(stdout);
            tty = open(TTY, O_RDWR);
            if (g->args != NULL) {
                write(tty, g->args, strlen(g->args));
                write(tty, " - (hit return to continue)", 27);
            } else
                write(tty, "\007", 1);
            do {
                c = '\n';
                read(tty, &c, 1);
            } while (c != '\n' && c != '\r');
            close(tty);
            break;

        default:
            sprintf(errmsg, "unknown command '%c' in doglobal", g->com);
            error(WARNING, errmsg);
            break;
        }

}


doprim(p)               /* plot primitive */

register PRIMITIVE  *p;

{

    if (newpage) {
        erase();
        newpage = FALSE;
    }
    
    switch (p->com) {

        case PLSEG:
            plotlseg(p);
            break;

        case PMSTR:
            printstr(p);
            break;

        default:
            sprintf(errmsg, "unknown command '%c' in doprim", p->com);
            error(WARNING, errmsg);
            return;
    }

}


printstr(p)             /* output a string */

register PRIMITIVE  *p;

{

    move(p->xy[XMN], p->xy[YMX]);
    label(p->args);
    curx = -1;
    cury = -1;

}


plotlseg(p)             /* plot a line segment */

register PRIMITIVE  *p;

{
    static short  right = FALSE;
    int  y1, y2;
    short  lm = (p->arg0 >> 4) & 03;

    if (p->arg0 & 0100) {
        y1 = p->xy[YMX];
        y2 = p->xy[YMN];
    } else {
        y1 = p->xy[YMN];
        y2 = p->xy[YMX];
    }

    if (lm != curmod) {
        linemod(lmode[lm]);
        curmod = lm;
    }

    if (p->xy[XMN] == curx && y1 == cury) {
        cont(p->xy[XMX], y2);
        curx = p->xy[XMX];
        cury = y2;
    } else if (p->xy[XMX] == curx && y2 == cury) {
        cont(p->xy[XMN], y1);
        curx = p->xy[XMN];
        cury = y1;
    } else if (right = !right) {
        line(p->xy[XMN], y1, p->xy[XMX], y2);
        curx = p->xy[XMX];
        cury = y2;
    } else {
        line(p->xy[XMX], y2, p->xy[XMN], y1);
        curx = p->xy[XMN];
        cury = y1;
    }
}
Revision:	1.3
Committed:	Mon Oct 27 10:28:59 2003 UTC (22 years ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 1.2:	+3 -2 lines
Log Message:	Various compatibility fixes.
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	schorsch	1.3	static const char RCSid[] = "$Id: plotout.c,v 1.2 2003/07/01 21:21:40 greg Exp $";
3	greg	1.1	#endif
4			/*
5			* Program to send meta-files to plot(3X) drivers
6			*
7			* cc -o plotout plotout.c mfio.o syscalls.o misc.o -lplot
8			*
9			* Plot drivers
10			*/
11
12
13			#ifdef FORTEK
14			#define XCOM "pexpand +vOCIsm -rtpSUR %s"
15			#else
16			#define XCOM "pexpand +vOCIs -rtpSUR %s"
17			#endif
18
19
20
21
22			#include <fcntl.h>
23
24	schorsch	1.3	#include "rtprocess.h"
25	greg	1.1	#include "meta.h"
26
27
28
29
30			char *progname;
31
32			static short newpage = TRUE;
33
34			static int curx = -1, /* current position */
35			cury = -1;
36
37			static short curmod = -1; /* current line drawing mode */
38
39			static char lmode[4][16] = {"solid", "shortdashed",
40			"dotted", "dotdashed"};
41
42			static PRIMITIVE nextp;
43
44
45
46			main(argc, argv)
47
48			int argc;
49			char **argv;
50
51			{
52	schorsch	1.3	FILE *fp;
53	greg	1.1	char comargs[200], command[300];
54			short condonly = FALSE, conditioned = FALSE;
55
56			progname = *argv++;
57			argc--;
58
59			while (argc && **argv == '-') {
60			switch ((argv+1)) {
61			case 'c':
62			condonly = TRUE;
63			break;
64			case 'r':
65			conditioned = TRUE;
66			break;
67			default:
68			error(WARNING, "unknown option");
69			break;
70			}
71			argv++;
72			argc--;
73			}
74
75			if (conditioned)
76			if (argc)
77			while (argc) {
78			fp = efopen(*argv, "r");
79			plot(fp);
80			fclose(fp);
81			argv++;
82			argc--;
83			}
84			else
85			plot(stdin);
86			else {
87			comargs[0] = '\0';
88			while (argc) {
89			strcat(comargs, " ");
90			strcat(comargs, *argv);
91			argv++;
92			argc--;
93			}
94			sprintf(command, XCOM, comargs);
95			if (condonly)
96			return(system(command));
97			else {
98			if ((fp = popen(command, "r")) == NULL)
99			error(SYSTEM, "cannot execute input filter");
100			plot(fp);
101			pclose(fp);
102			}
103			}
104
105			return(0);
106			}
107
108
109
110
111
112			plot(infp) /* plot meta-file */
113
114			FILE *infp;
115
116			{
117
118			openpl();
119			space(0, 0, XYSIZE, XYSIZE);
120
121			do {
122			readp(&nextp, infp);
123			while (isprim(nextp.com)) {
124			doprim(&nextp);
125			fargs(&nextp);
126			readp(&nextp, infp);
127			}
128			doglobal(&nextp);
129			fargs(&nextp);
130			} while (nextp.com != PEOF);
131
132			closepl();
133
134			}
135
136
137
138
139
140			doglobal(g) /* execute a global command */
141
142			PRIMITIVE *g;
143
144			{
145			int tty;
146			char c;
147
148			switch (g->com) {
149
150			case PEOF:
151			break;
152
153			case PDRAW:
154			fflush(stdout);
155			break;
156
157			case PEOP:
158			newpage = TRUE;
159			if (!isatty(fileno(stdout)))
160			break;
161			/* fall through */
162
163	greg	1.2	case PPAUS:
164	greg	1.1	fflush(stdout);
165			tty = open(TTY, O_RDWR);
166			if (g->args != NULL) {
167			write(tty, g->args, strlen(g->args));
168			write(tty, " - (hit return to continue)", 27);
169			} else
170			write(tty, "\007", 1);
171			do {
172			c = '\n';
173			read(tty, &c, 1);
174			} while (c != '\n' && c != '\r');
175			close(tty);
176			break;
177
178			default:
179			sprintf(errmsg, "unknown command '%c' in doglobal", g->com);
180			error(WARNING, errmsg);
181			break;
182			}
183
184			}
185
186
187
188
189			doprim(p) /* plot primitive */
190
191			register PRIMITIVE *p;
192
193			{
194
195			if (newpage) {
196			erase();
197			newpage = FALSE;
198			}
199
200			switch (p->com) {
201
202			case PLSEG:
203			plotlseg(p);
204			break;
205
206			case PMSTR:
207			printstr(p);
208			break;
209
210			default:
211			sprintf(errmsg, "unknown command '%c' in doprim", p->com);
212			error(WARNING, errmsg);
213			return;
214			}
215
216			}
217
218
219
220
221
222
223			printstr(p) /* output a string */
224
225			register PRIMITIVE *p;
226
227			{
228
229			move(p->xy[XMN], p->xy[YMX]);
230			label(p->args);
231			curx = -1;
232			cury = -1;
233
234			}
235
236
237
238
239
240			plotlseg(p) /* plot a line segment */
241
242			register PRIMITIVE *p;
243
244			{
245			static short right = FALSE;
246			int y1, y2;
247			short lm = (p->arg0 >> 4) & 03;
248
249			if (p->arg0 & 0100) {
250			y1 = p->xy[YMX];
251			y2 = p->xy[YMN];
252			} else {
253			y1 = p->xy[YMN];
254			y2 = p->xy[YMX];
255			}
256
257			if (lm != curmod) {
258			linemod(lmode[lm]);
259			curmod = lm;
260			}
261
262			if (p->xy[XMN] == curx && y1 == cury) {
263			cont(p->xy[XMX], y2);
264			curx = p->xy[XMX];
265			cury = y2;
266			} else if (p->xy[XMX] == curx && y2 == cury) {
267			cont(p->xy[XMN], y1);
268			curx = p->xy[XMN];
269			cury = y1;
270			} else if (right = !right) {
271			line(p->xy[XMN], y1, p->xy[XMX], y2);
272			curx = p->xy[XMX];
273			cury = y2;
274			} else {
275			line(p->xy[XMX], y2, p->xy[XMN], y1);
276			curx = p->xy[XMN];
277			cury = y1;
278			}
279			}