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root/Development/ray/src/common/xf.c

Comparing ray/src/common/xf.c (file contents):
Revision 2.6 by greg, Fri Jun 27 06:53:22 2003 UTC vs.
Revision 2.9 by greg, Mon Jun 23 15:11:04 2025 UTC

#	Line 7 | Line 7 | static const char      RCSid[] = "$Id$";
7		*  External symbols declared in rtmath.h
8		*/
9
10	+	#include  <stdlib.h>
11		#include  "rtmath.h"
12		#include  "rtio.h"
13
#	Line 16 | Line 17 | static const char      RCSid[] = "$Id$";
17
18
19		int
20	<	xf(ret, ac, av)                 /* get transform specification */
20	<	register XF  *ret;
21	<	int  ac;
22	<	char  *av[];
20	>	isxfopt(char *p)        /* check whether option begins transform */
21		{
22	+	if (*p++ != '-')
23	+	return(0);
24	+
25	+	if ((p[0] == 't') | (p[0] == 's') | (p[0] == 'i') &&
26	+	!p[1])
27	+	return(1);
28	+
29	+	if ((p[0] == 'r') | (p[0] == 'm') &&
30	+	('x' <= p[1]) & (p[1] <= 'z') &&
31	+	!p[2])
32	+	return(1);
33	+
34	+	return(0);
35	+	}
36	+
37	+
38	+	int
39	+	xf(XF *ret, int ac, char *av[])         /* get transform specification */
40	+	{
41		MAT4  xfmat, m4;
42		double  xfsca, dtmp;
43		int  i, icnt;
#	Line 130 | Line 147 | done:
147
148
149		int
150	<	invxf(ret, ac, av)              /* invert transform specification */
134	<	register XF  *ret;
135	<	int  ac;
136	<	char  *av[];
150	>	invxf(XF *ret, int ac, char *av[])      /* invert transform specification */
151		{
152		MAT4  xfmat, m4;
153		double  xfsca, dtmp;
#	Line 244 | Line 258 | done:
258
259
260		int
261	<	fullxf(fx, ac, av)                      /* compute both forward and inverse */
248	<	FULLXF  *fx;
249	<	int  ac;
250	<	char  *av[];
261	>	fullxf(FULLXF *fx, int ac, char *av[])  /* compute both forward and inverse */
262		{
263		xf(&fx->f, ac, av);
264		return(invxf(&fx->b, ac, av));

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