| 1 |
/* Copyright (c) 1996 Regents of the University of California */ |
| 2 |
|
| 3 |
#ifndef lint |
| 4 |
static char SCCSid[] = "$SunId$ LBL"; |
| 5 |
#endif |
| 6 |
|
| 7 |
/* |
| 8 |
* xform.c - program to transform object files. |
| 9 |
* Transformations must preserve aspect ratio. |
| 10 |
* |
| 11 |
* 10/19/85 |
| 12 |
* 11/6/86 Finally added error checking! |
| 13 |
*/ |
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|
| 15 |
#include "standard.h" |
| 16 |
|
| 17 |
#include "paths.h" |
| 18 |
|
| 19 |
#include <ctype.h> |
| 20 |
|
| 21 |
#include "object.h" |
| 22 |
|
| 23 |
#include "otypes.h" |
| 24 |
|
| 25 |
int xac; /* global xform argument count */ |
| 26 |
char **xav; /* global xform argument pointer */ |
| 27 |
int xfa; /* start of xf arguments */ |
| 28 |
|
| 29 |
XF tot; /* total transformation */ |
| 30 |
int reverse; /* boolean true if scene mirrored */ |
| 31 |
|
| 32 |
int invert = 0; /* boolean true to invert surfaces */ |
| 33 |
|
| 34 |
int expand = 1; /* boolean true to expand commands */ |
| 35 |
|
| 36 |
char *newmod = NULL; /* new modifier for surfaces */ |
| 37 |
|
| 38 |
char *idprefix = NULL; /* prefix for object identifiers */ |
| 39 |
|
| 40 |
#define ALIAS NUMOTYPE /* put alias at end of array */ |
| 41 |
|
| 42 |
#define NUMTYPES (NUMOTYPE+1) /* total number of object types */ |
| 43 |
|
| 44 |
FUN ofun[NUMTYPES] = INIT_OTYPE; /* default types and actions */ |
| 45 |
|
| 46 |
short tinvers[NUMOTYPE]; /* inverse types for surfaces */ |
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|
| 48 |
int nrept = 1; /* number of array repetitions */ |
| 49 |
|
| 50 |
extern char *malloc(), *fgetword(); |
| 51 |
|
| 52 |
char mainfn[MAXPATH]; /* main file name */ |
| 53 |
FILE *mainfp = NULL; /* main file pointer */ |
| 54 |
|
| 55 |
#define progname (xav[0]) |
| 56 |
|
| 57 |
|
| 58 |
main(argc, argv) /* get transform options and transform file */ |
| 59 |
int argc; |
| 60 |
char *argv[]; |
| 61 |
{ |
| 62 |
char *fname; |
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int a; |
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/* check for array */ |
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for (a = 1; a < argc; a++) |
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if (!strcmp(argv[a], "-a")) |
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return(doarray(argc, argv, a)); |
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|
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initotypes(); |
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|
| 71 |
for (a = 1; a < argc; a++) { |
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if (argv[a][0] == '-') |
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switch (argv[a][1]) { |
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case 'm': |
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if (argv[a][2] || a+1 >= argc) |
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break; |
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newmod = argv[++a]; |
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continue; |
| 79 |
case 'n': |
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if (argv[a][2] || a+1 >= argc) |
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break; |
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idprefix = argv[++a]; |
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continue; |
| 84 |
case 'c': |
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if (argv[a][2]) |
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break; |
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expand = 0; |
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continue; |
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case 'e': |
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if (argv[a][2]) |
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break; |
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expand = 1; |
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continue; |
| 94 |
case 'I': |
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if (argv[a][2]) |
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break; |
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invert = 1; |
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continue; |
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} |
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break; |
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} |
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|
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xav = argv; |
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xfa = a; |
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|
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a += xf(&tot, argc-a, argv+a); |
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|
| 108 |
if (reverse = tot.sca < 0.0) |
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tot.sca = -tot.sca; |
| 110 |
if (invert) |
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reverse = !reverse; |
| 112 |
|
| 113 |
if (a < argc && argv[a][0] == '-') { |
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fprintf(stderr, "%s: command line error at '%s'\n", |
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argv[0], argv[a]); |
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exit(1); |
| 117 |
} |
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|
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xac = a; |
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/* simple header */ |
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putchar('#'); |
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for (a = 0; a < xac; a++) |
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printf(" %s", xav[a]); |
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putchar('\n'); |
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/* transform input */ |
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if (xac == argc) { |
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openmain(NULL); |
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xform(mainfn, mainfp); |
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} else |
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for (a = xac; a < argc; a++) { |
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openmain(argv[a]); |
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xform(mainfn, mainfp); |
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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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doarray(ac, av, ai) /* make array */ |
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char **av; |
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int ac, ai; |
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{ |
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char *newav[256], **avp; |
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char newid[128], repts[32]; |
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char *oldid = NULL; |
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int n, i, err; |
| 147 |
|
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avp = newav+2; |
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avp[0] = av[0]; |
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for (i = 1; i < ac; i++) |
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if (!strcmp(av[i-1], "-n")) { |
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oldid = av[i]; |
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avp[i] = newid; |
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} else |
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avp[i] = av[i]; |
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avp[ai] = "-i"; |
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avp[ai+1] = repts; |
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avp[i] = NULL; |
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if (oldid == NULL) { |
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newav[0] = av[0]; |
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newav[1] = "-n"; |
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newav[2] = newid; |
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avp = newav; |
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ac += 2; |
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} |
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nrept *= n = atoi(av[ai+1]); |
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err = 0; |
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for (i = 0; i < n; i++) { |
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if (oldid == NULL) |
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sprintf(newid, "a%d", i); |
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else |
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sprintf(newid, "%s.%d", oldid, i); |
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sprintf(repts, "%d", i); |
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err |= main(ac, avp); |
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} |
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return(err); |
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} |
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|
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|
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xform(name, fin) /* transform stream by tot.xfm */ |
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char *name; |
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register FILE *fin; |
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{ |
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int nobjs = 0; |
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register int c; |
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|
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while ((c = getc(fin)) != EOF) { |
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if (isspace(c)) /* blank */ |
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continue; |
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if (c == '#') { /* comment */ |
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putchar(c); |
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do { |
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if ((c = getc(fin)) == EOF) |
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return; |
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putchar(c); |
| 196 |
} while (c != '\n'); |
| 197 |
} else if (c == '!') { /* command */ |
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ungetc(c, fin); |
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xfcomm(name, fin); |
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nobjs++; |
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} else { /* object */ |
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ungetc(c, fin); |
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xfobject(name, fin); |
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nobjs++; |
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} |
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} |
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if (nobjs == 0) |
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fprintf(stderr, "%s: (%s): warning - empty file\n", |
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progname, name); |
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} |
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|
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|
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xfcomm(fname, fin) /* transform a command */ |
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char *fname; |
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FILE *fin; |
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{ |
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extern FILE *popen(); |
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extern char *fgetline(); |
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FILE *pin; |
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char buf[512]; |
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int i; |
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|
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fgetline(buf, sizeof(buf), fin); |
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if (expand) { |
| 225 |
if ((pin = popen(buf+1, "r")) == NULL) { |
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fprintf(stderr, "%s: (%s): cannot execute \"%s\"\n", |
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progname, fname, buf); |
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exit(1); |
| 229 |
} |
| 230 |
xform(buf, pin); |
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pclose(pin); |
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} else { |
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printf("\n%s", buf); |
| 234 |
if (xac > 1) { |
| 235 |
printf(" | %s", xav[0]); |
| 236 |
for (i = 1; i < xac; i++) |
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printf(" %s", xav[i]); |
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} |
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putchar('\n'); |
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} |
| 241 |
} |
| 242 |
|
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|
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xfobject(fname, fin) /* transform an object */ |
| 245 |
char *fname; |
| 246 |
FILE *fin; |
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{ |
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extern char *strcpy(); |
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char typ[16], nam[MAXSTR]; |
| 250 |
int fn; |
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/* modifier and type */ |
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strcpy(typ, "EOF"); |
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fgetword(nam, sizeof(nam), fin); |
| 254 |
fgetword(typ, sizeof(typ), fin); |
| 255 |
if ((fn = otype(typ)) < 0) { |
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fprintf(stderr, "%s: (%s): unknown object type \"%s\"\n", |
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progname, fname, typ); |
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exit(1); |
| 259 |
} |
| 260 |
if (ismodifier(fn)) |
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printf("\n%s %s ", nam, typ); |
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else |
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printf("\n%s %s ", newmod != NULL ? newmod : nam, |
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invert ? ofun[tinvers[fn]].funame : typ); |
| 265 |
/* object name */ |
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fgetword(nam, sizeof(nam), fin); |
| 267 |
if (idprefix == NULL || ismodifier(fn)) |
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printf("%s\n", nam); |
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else |
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printf("%s.%s\n", idprefix, nam); |
| 271 |
/* transform arguments */ |
| 272 |
if ((*ofun[fn].funp)(fin) < 0) { |
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fprintf(stderr, "%s: (%s): bad %s \"%s\"\n", |
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progname, fname, ofun[fn].funame, nam); |
| 275 |
exit(1); |
| 276 |
} |
| 277 |
} |
| 278 |
|
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|
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o_default(fin) /* pass on arguments unchanged */ |
| 281 |
FILE *fin; |
| 282 |
{ |
| 283 |
register int i; |
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FUNARGS fa; |
| 285 |
|
| 286 |
if (readfargs(&fa, fin) != 1) |
| 287 |
return(-1); |
| 288 |
/* string arguments */ |
| 289 |
printf("%d", fa.nsargs); |
| 290 |
for (i = 0; i < fa.nsargs; i++) |
| 291 |
printf(" %s", fa.sarg[i]); |
| 292 |
printf("\n"); |
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#ifdef IARGS |
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/* integer arguments */ |
| 295 |
printf("%d", fa.niargs); |
| 296 |
for (i = 0; i < fa.niargs; i++) |
| 297 |
printf(" %d", fa.iarg[i]); |
| 298 |
printf("\n"); |
| 299 |
#else |
| 300 |
printf("0\n"); |
| 301 |
#endif |
| 302 |
/* float arguments */ |
| 303 |
printf("%d", fa.nfargs); |
| 304 |
for (i = 0; i < fa.nfargs; i++) |
| 305 |
printf(" %18.12g", fa.farg[i]); |
| 306 |
printf("\n"); |
| 307 |
freefargs(&fa); |
| 308 |
return(0); |
| 309 |
} |
| 310 |
|
| 311 |
|
| 312 |
addxform(fin) /* add xf arguments to strings */ |
| 313 |
FILE *fin; |
| 314 |
{ |
| 315 |
register int i; |
| 316 |
int resetarr = 0; |
| 317 |
FUNARGS fa; |
| 318 |
|
| 319 |
if (readfargs(&fa, fin) != 1) |
| 320 |
return(-1); |
| 321 |
/* string arguments */ |
| 322 |
if (xac > xfa && strcmp(xav[xfa], "-i")) |
| 323 |
resetarr = 2; |
| 324 |
printf("%d", fa.nsargs + resetarr + xac-xfa); |
| 325 |
for (i = 0; i < fa.nsargs; i++) |
| 326 |
printf(" %s", fa.sarg[i]); |
| 327 |
if (resetarr) |
| 328 |
printf(" -i 1"); |
| 329 |
for (i = xfa; i < xac; i++) /* add xf arguments */ |
| 330 |
printf(" %s", xav[i]); |
| 331 |
printf("\n"); |
| 332 |
#ifdef IARGS |
| 333 |
/* integer arguments */ |
| 334 |
printf("%d", fa.niargs); |
| 335 |
for (i = 0; i < fa.niargs; i++) |
| 336 |
printf(" %d", fa.iarg[i]); |
| 337 |
printf("\n"); |
| 338 |
#else |
| 339 |
printf("0\n"); |
| 340 |
#endif |
| 341 |
/* float arguments */ |
| 342 |
printf("%d", fa.nfargs); |
| 343 |
for (i = 0; i < fa.nfargs; i++) |
| 344 |
printf(" %18.12g", fa.farg[i]); |
| 345 |
printf("\n"); |
| 346 |
freefargs(&fa); |
| 347 |
return(0); |
| 348 |
} |
| 349 |
|
| 350 |
|
| 351 |
int |
| 352 |
otype(ofname) /* get object function number from its name */ |
| 353 |
register char *ofname; |
| 354 |
{ |
| 355 |
register int i; |
| 356 |
|
| 357 |
for (i = 0; i < NUMTYPES; i++) |
| 358 |
if (!strcmp(ofun[i].funame, ofname)) |
| 359 |
return(i); |
| 360 |
|
| 361 |
return(-1); /* not found */ |
| 362 |
} |
| 363 |
|
| 364 |
|
| 365 |
alias(fin) /* transfer alias */ |
| 366 |
FILE *fin; |
| 367 |
{ |
| 368 |
char aliasnm[MAXSTR]; |
| 369 |
|
| 370 |
if (fgetword(aliasnm, MAXSTR, fin) == NULL) |
| 371 |
return(-1); |
| 372 |
printf("\t%s\n", aliasnm); |
| 373 |
return(0); |
| 374 |
} |
| 375 |
|
| 376 |
|
| 377 |
m_glow(fin) /* transform arguments for proximity light */ |
| 378 |
FILE *fin; |
| 379 |
{ |
| 380 |
FUNARGS fa; |
| 381 |
|
| 382 |
if (readfargs(&fa, fin) != 1) |
| 383 |
return(-1); |
| 384 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
| 385 |
return(-1); |
| 386 |
printf("0\n0\n4"); |
| 387 |
printf(" %18.12g %18.12g %18.12g", |
| 388 |
fa.farg[0], fa.farg[1], fa.farg[2]); |
| 389 |
printf(" %18.12g\n", fa.farg[3] * tot.sca); |
| 390 |
freefargs(&fa); |
| 391 |
return(0); |
| 392 |
} |
| 393 |
|
| 394 |
|
| 395 |
m_spot(fin) /* transform arguments for spotlight */ |
| 396 |
FILE *fin; |
| 397 |
{ |
| 398 |
FVECT v; |
| 399 |
FUNARGS fa; |
| 400 |
|
| 401 |
if (readfargs(&fa, fin) != 1) |
| 402 |
return(-1); |
| 403 |
if (fa.nsargs != 0 || fa.nfargs != 7) |
| 404 |
return(-1); |
| 405 |
printf("0\n0\n7"); |
| 406 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
| 407 |
fa.farg[0], fa.farg[1], fa.farg[2], fa.farg[3]); |
| 408 |
multv3(v, fa.farg+4, tot.xfm); |
| 409 |
printf("\t%18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
| 410 |
freefargs(&fa); |
| 411 |
return(0); |
| 412 |
} |
| 413 |
|
| 414 |
|
| 415 |
m_mist(fin) /* transform arguments for mist */ |
| 416 |
FILE *fin; |
| 417 |
{ |
| 418 |
FUNARGS fa; |
| 419 |
int i; |
| 420 |
|
| 421 |
if (readfargs(&fa, fin) != 1) |
| 422 |
return(-1); |
| 423 |
if (fa.nfargs > 5) |
| 424 |
return(-1); |
| 425 |
printf("%d", fa.nsargs); |
| 426 |
if (idprefix == NULL) |
| 427 |
for (i = 0; i < fa.nsargs; i++) |
| 428 |
printf(" %s", fa.sarg[i]); |
| 429 |
else |
| 430 |
for (i = 0; i < fa.nsargs; i++) { |
| 431 |
char sname[256], *sp; |
| 432 |
register char *cp1, *cp2 = sname; |
| 433 |
/* add idprefix */ |
| 434 |
for (sp = fa.sarg[i]; *sp; sp = cp1) { |
| 435 |
for (cp1 = idprefix; *cp1; ) |
| 436 |
*cp2++ = *cp1++; |
| 437 |
*cp2++ = '.'; |
| 438 |
for (cp1 = sp; *cp1 && |
| 439 |
(*cp2++ = *cp1++) != '>'; ) |
| 440 |
; |
| 441 |
} |
| 442 |
*cp2 = '\0'; |
| 443 |
printf(" %s", sname); |
| 444 |
} |
| 445 |
printf("\n0\n%d", fa.nfargs); |
| 446 |
if (fa.nfargs > 2) |
| 447 |
printf(" %12.6g %12.6g %12.6g", fa.farg[0]/tot.sca, |
| 448 |
fa.farg[1]/tot.sca, fa.farg[2]/tot.sca); |
| 449 |
if (fa.nfargs > 3) |
| 450 |
printf(" %12.6g", fa.farg[3]); |
| 451 |
if (fa.nfargs > 4) |
| 452 |
printf(" %12.6g", fa.farg[4]); |
| 453 |
printf("\n"); |
| 454 |
freefargs(&fa); |
| 455 |
return(0); |
| 456 |
} |
| 457 |
|
| 458 |
|
| 459 |
m_dielectric(fin) /* transform arguments for dielectric */ |
| 460 |
FILE *fin; |
| 461 |
{ |
| 462 |
FUNARGS fa; |
| 463 |
|
| 464 |
if (readfargs(&fa, fin) != 1) |
| 465 |
return(-1); |
| 466 |
if (fa.nsargs != 0 || fa.nfargs != 5) |
| 467 |
return(-1); |
| 468 |
printf("0\n0\n5"); |
| 469 |
printf(" %12.6g %12.6g %12.6g", |
| 470 |
pow(fa.farg[0], 1.0/tot.sca), |
| 471 |
pow(fa.farg[1], 1.0/tot.sca), |
| 472 |
pow(fa.farg[2], 1.0/tot.sca)); |
| 473 |
printf(" %12.6g %12.6g\n", fa.farg[3], fa.farg[4]); |
| 474 |
freefargs(&fa); |
| 475 |
return(0); |
| 476 |
} |
| 477 |
|
| 478 |
|
| 479 |
m_interface(fin) /* transform arguments for interface */ |
| 480 |
FILE *fin; |
| 481 |
{ |
| 482 |
FUNARGS fa; |
| 483 |
|
| 484 |
if (readfargs(&fa, fin) != 1) |
| 485 |
return(-1); |
| 486 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
| 487 |
return(-1); |
| 488 |
printf("0\n0\n8\n"); |
| 489 |
printf("%12.6g %12.6g %12.6g", |
| 490 |
pow(fa.farg[0], 1.0/tot.sca), |
| 491 |
pow(fa.farg[1], 1.0/tot.sca), |
| 492 |
pow(fa.farg[2], 1.0/tot.sca)); |
| 493 |
printf(" %12.6g\n", fa.farg[3]); |
| 494 |
printf("%12.6g %12.6g %12.6g", |
| 495 |
pow(fa.farg[4], 1.0/tot.sca), |
| 496 |
pow(fa.farg[5], 1.0/tot.sca), |
| 497 |
pow(fa.farg[6], 1.0/tot.sca)); |
| 498 |
printf(" %12.6g\n", fa.farg[7]); |
| 499 |
freefargs(&fa); |
| 500 |
return(0); |
| 501 |
} |
| 502 |
|
| 503 |
|
| 504 |
text(fin) /* transform text arguments */ |
| 505 |
FILE *fin; |
| 506 |
{ |
| 507 |
int i; |
| 508 |
FVECT v; |
| 509 |
FUNARGS fa; |
| 510 |
|
| 511 |
if (readfargs(&fa, fin) != 1) |
| 512 |
return(-1); |
| 513 |
if (fa.nfargs < 9) |
| 514 |
return(-1); |
| 515 |
/* string arguments */ |
| 516 |
printf("%d", fa.nsargs); |
| 517 |
for (i = 0; i < fa.nsargs; i++) |
| 518 |
printf(" %s", fa.sarg[i]); |
| 519 |
printf("\n0\n%d\n", fa.nfargs); |
| 520 |
/* anchor point */ |
| 521 |
multp3(v, fa.farg, tot.xfm); |
| 522 |
printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
| 523 |
/* right vector */ |
| 524 |
multv3(v, fa.farg+3, tot.xfm); |
| 525 |
printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
| 526 |
/* down vector */ |
| 527 |
multv3(v, fa.farg+6, tot.xfm); |
| 528 |
printf(" %18.12g %18.12g %18.12g", v[0], v[1], v[2]); |
| 529 |
/* remaining arguments */ |
| 530 |
for (i = 9; i < fa.nfargs; i++) { |
| 531 |
if (i%3 == 0) |
| 532 |
putchar('\n'); |
| 533 |
printf(" %18.12g", fa.farg[i]); |
| 534 |
} |
| 535 |
putchar('\n'); |
| 536 |
freefargs(&fa); |
| 537 |
return(0); |
| 538 |
} |
| 539 |
|
| 540 |
|
| 541 |
o_source(fin) /* transform source arguments */ |
| 542 |
FILE *fin; |
| 543 |
{ |
| 544 |
FVECT dv; |
| 545 |
FUNARGS fa; |
| 546 |
|
| 547 |
if (readfargs(&fa, fin) != 1) |
| 548 |
return(-1); |
| 549 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
| 550 |
return(-1); |
| 551 |
/* transform direction vector */ |
| 552 |
multv3(dv, fa.farg, tot.xfm); |
| 553 |
/* output */ |
| 554 |
printf("0\n0\n4"); |
| 555 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
| 556 |
dv[0], dv[1], dv[2], fa.farg[3]); |
| 557 |
freefargs(&fa); |
| 558 |
return(0); |
| 559 |
} |
| 560 |
|
| 561 |
|
| 562 |
o_sphere(fin) /* transform sphere arguments */ |
| 563 |
FILE *fin; |
| 564 |
{ |
| 565 |
FVECT cent; |
| 566 |
double rad; |
| 567 |
FUNARGS fa; |
| 568 |
|
| 569 |
if (readfargs(&fa, fin) != 1) |
| 570 |
return(-1); |
| 571 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
| 572 |
return(-1); |
| 573 |
|
| 574 |
multp3(cent, fa.farg, tot.xfm); /* transform center */ |
| 575 |
|
| 576 |
rad = fa.farg[3] * tot.sca; /* scale radius */ |
| 577 |
|
| 578 |
printf("0\n0\n4"); |
| 579 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
| 580 |
cent[0], cent[1], cent[2], rad); |
| 581 |
freefargs(&fa); |
| 582 |
return(0); |
| 583 |
} |
| 584 |
|
| 585 |
|
| 586 |
o_face(fin) /* transform face arguments */ |
| 587 |
FILE *fin; |
| 588 |
{ |
| 589 |
FVECT p; |
| 590 |
register int i; |
| 591 |
FUNARGS fa; |
| 592 |
|
| 593 |
if (readfargs(&fa, fin) != 1) |
| 594 |
return(-1); |
| 595 |
if (fa.nsargs != 0 || fa.nfargs % 3) |
| 596 |
return(-1); |
| 597 |
|
| 598 |
printf("0\n0\n%d\n", fa.nfargs); |
| 599 |
|
| 600 |
for (i = 0; i < fa.nfargs; i += 3) { |
| 601 |
if (reverse) |
| 602 |
multp3(p, fa.farg+(fa.nfargs-i-3), tot.xfm); |
| 603 |
else |
| 604 |
multp3(p, fa.farg+i, tot.xfm); |
| 605 |
printf(" %18.12g %18.12g %18.12g\n", p[0], p[1], p[2]); |
| 606 |
} |
| 607 |
freefargs(&fa); |
| 608 |
return(0); |
| 609 |
} |
| 610 |
|
| 611 |
|
| 612 |
o_cone(fin) /* transform cone and cup arguments */ |
| 613 |
FILE *fin; |
| 614 |
{ |
| 615 |
FVECT p0, p1; |
| 616 |
double r0, r1; |
| 617 |
FUNARGS fa; |
| 618 |
|
| 619 |
if (readfargs(&fa, fin) != 1) |
| 620 |
return(-1); |
| 621 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
| 622 |
return(-1); |
| 623 |
|
| 624 |
printf("0\n0\n8\n"); |
| 625 |
|
| 626 |
multp3(p0, fa.farg, tot.xfm); |
| 627 |
multp3(p1, fa.farg+3, tot.xfm); |
| 628 |
r0 = fa.farg[6] * tot.sca; |
| 629 |
r1 = fa.farg[7] * tot.sca; |
| 630 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
| 631 |
printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]); |
| 632 |
printf(" %18.12g %18.12g\n", r0, r1); |
| 633 |
|
| 634 |
freefargs(&fa); |
| 635 |
return(0); |
| 636 |
} |
| 637 |
|
| 638 |
|
| 639 |
o_cylinder(fin) /* transform cylinder and tube arguments */ |
| 640 |
FILE *fin; |
| 641 |
{ |
| 642 |
FVECT p0, p1; |
| 643 |
double rad; |
| 644 |
FUNARGS fa; |
| 645 |
|
| 646 |
if (readfargs(&fa, fin) != 1) |
| 647 |
return(-1); |
| 648 |
if (fa.nsargs != 0 || fa.nfargs != 7) |
| 649 |
return(-1); |
| 650 |
|
| 651 |
printf("0\n0\n7\n"); |
| 652 |
|
| 653 |
multp3(p0, fa.farg, tot.xfm); |
| 654 |
multp3(p1, fa.farg+3, tot.xfm); |
| 655 |
rad = fa.farg[6] * tot.sca; |
| 656 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
| 657 |
printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]); |
| 658 |
printf(" %18.12g\n", rad); |
| 659 |
freefargs(&fa); |
| 660 |
return(0); |
| 661 |
} |
| 662 |
|
| 663 |
|
| 664 |
o_ring(fin) /* transform ring arguments */ |
| 665 |
FILE *fin; |
| 666 |
{ |
| 667 |
FVECT p0, pd; |
| 668 |
double r0, r1; |
| 669 |
FUNARGS fa; |
| 670 |
|
| 671 |
if (readfargs(&fa, fin) != 1) |
| 672 |
return(-1); |
| 673 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
| 674 |
return(-1); |
| 675 |
|
| 676 |
printf("0\n0\n8\n"); |
| 677 |
|
| 678 |
multp3(p0, fa.farg, tot.xfm); |
| 679 |
multv3(pd, fa.farg+3, tot.xfm); |
| 680 |
if (invert) { |
| 681 |
pd[0] = -pd[0]; |
| 682 |
pd[1] = -pd[1]; |
| 683 |
pd[2] = -pd[2]; |
| 684 |
} |
| 685 |
r0 = fa.farg[6] * tot.sca; |
| 686 |
r1 = fa.farg[7] * tot.sca; |
| 687 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
| 688 |
printf(" %18.12g %18.12g %18.12g\n", pd[0], pd[1], pd[2]); |
| 689 |
printf(" %18.12g %18.12g\n", r0, r1); |
| 690 |
freefargs(&fa); |
| 691 |
return(0); |
| 692 |
} |
| 693 |
|
| 694 |
|
| 695 |
initotypes() /* initialize ofun[] array */ |
| 696 |
{ |
| 697 |
register int i; |
| 698 |
|
| 699 |
if (ofun[OBJ_SOURCE].funp == o_source) |
| 700 |
return; /* done already */ |
| 701 |
/* alias is additional */ |
| 702 |
ofun[ALIAS].funame = ALIASID; |
| 703 |
ofun[ALIAS].flags = 0; |
| 704 |
/* functions get new transform */ |
| 705 |
for (i = 0; i < NUMTYPES; i++) |
| 706 |
if (hasfunc(i)) |
| 707 |
ofun[i].funp = addxform; |
| 708 |
/* special cases */ |
| 709 |
ofun[OBJ_SOURCE].funp = o_source; |
| 710 |
ofun[OBJ_SPHERE].funp = |
| 711 |
ofun[OBJ_BUBBLE].funp = o_sphere; |
| 712 |
ofun[OBJ_FACE].funp = o_face; |
| 713 |
ofun[OBJ_CONE].funp = |
| 714 |
ofun[OBJ_CUP].funp = o_cone; |
| 715 |
ofun[OBJ_CYLINDER].funp = |
| 716 |
ofun[OBJ_TUBE].funp = o_cylinder; |
| 717 |
ofun[OBJ_RING].funp = o_ring; |
| 718 |
ofun[OBJ_INSTANCE].funp = addxform; |
| 719 |
ofun[MAT_GLOW].funp = m_glow; |
| 720 |
ofun[MAT_SPOT].funp = m_spot; |
| 721 |
ofun[MAT_DIELECTRIC].funp = m_dielectric; |
| 722 |
ofun[MAT_INTERFACE].funp = m_interface; |
| 723 |
ofun[MAT_MIST].funp = m_mist; |
| 724 |
ofun[PAT_CTEXT].funp = |
| 725 |
ofun[PAT_BTEXT].funp = |
| 726 |
ofun[MIX_TEXT].funp = text; |
| 727 |
ofun[ALIAS].funp = alias; |
| 728 |
/* surface inverses */ |
| 729 |
tinvers[OBJ_FACE] = OBJ_FACE; |
| 730 |
tinvers[OBJ_SOURCE] = OBJ_SOURCE; |
| 731 |
tinvers[OBJ_CONE] = OBJ_CUP; |
| 732 |
tinvers[OBJ_CUP] = OBJ_CONE; |
| 733 |
tinvers[OBJ_SPHERE] = OBJ_BUBBLE; |
| 734 |
tinvers[OBJ_BUBBLE] = OBJ_SPHERE; |
| 735 |
tinvers[OBJ_RING] = OBJ_RING; |
| 736 |
tinvers[OBJ_CYLINDER] = OBJ_TUBE; |
| 737 |
tinvers[OBJ_TUBE] = OBJ_CYLINDER; |
| 738 |
tinvers[OBJ_INSTANCE] = OBJ_INSTANCE; /* oh, well */ |
| 739 |
} |
| 740 |
|
| 741 |
|
| 742 |
#ifdef OLDXFORM |
| 743 |
openmain(fname) |
| 744 |
char *fname; |
| 745 |
{ |
| 746 |
if (fname == NULL) { |
| 747 |
strcpy(mainfn, "standard input"); |
| 748 |
mainfp = stdin; |
| 749 |
return; |
| 750 |
} |
| 751 |
if (mainfp != NULL) { |
| 752 |
if (!strcmp(fname, mainfn)) { |
| 753 |
rewind(mainfp); |
| 754 |
return; |
| 755 |
} |
| 756 |
fclose(mainfp); |
| 757 |
} |
| 758 |
if ((mainfp = fopen(fname, "r")) == NULL) { |
| 759 |
fprintf(stderr, "%s: cannot open file \"%s\"\n", |
| 760 |
progname, fname); |
| 761 |
exit(1); |
| 762 |
} |
| 763 |
strcpy(mainfn, fname); |
| 764 |
} |
| 765 |
#else |
| 766 |
openmain(fname) /* open fname for input, changing to its directory */ |
| 767 |
char *fname; |
| 768 |
{ |
| 769 |
extern FILE *tmpfile(); |
| 770 |
extern char *getlibpath(), *getpath(); |
| 771 |
static char origdir[MAXPATH]; |
| 772 |
static char curfn[MAXPATH]; |
| 773 |
static int diffdir; |
| 774 |
register char *fpath; |
| 775 |
|
| 776 |
if (fname == NULL) { /* standard input */ |
| 777 |
if (mainfp == NULL) { |
| 778 |
register int c; |
| 779 |
strcpy(mainfn, "standard input"); |
| 780 |
if (nrept <= 1) { |
| 781 |
mainfp = stdin; |
| 782 |
return; /* just read once */ |
| 783 |
} |
| 784 |
/* else copy */ |
| 785 |
if ((mainfp = tmpfile()) == NULL) { |
| 786 |
fprintf(stderr, |
| 787 |
"%s: cannot create temporary file\n", |
| 788 |
progname); |
| 789 |
exit(1); |
| 790 |
} |
| 791 |
while ((c = getc(stdin)) != EOF) |
| 792 |
putc(c, mainfp); |
| 793 |
fclose(stdin); |
| 794 |
} |
| 795 |
rewind(mainfp); /* rewind copy */ |
| 796 |
return; |
| 797 |
} |
| 798 |
if (mainfp == NULL) { /* first call, initialize */ |
| 799 |
getwd(origdir); |
| 800 |
} else if (!strcmp(fname, curfn)) { /* just need to rewind? */ |
| 801 |
rewind(mainfp); |
| 802 |
return; |
| 803 |
} else { /* else close old stream */ |
| 804 |
fclose(mainfp); |
| 805 |
if (diffdir) { |
| 806 |
chdir(origdir); |
| 807 |
diffdir = 0; |
| 808 |
} |
| 809 |
} |
| 810 |
strcpy(curfn, fname); /* remember file name */ |
| 811 |
/* get full path */ |
| 812 |
if ((fpath = getpath(fname, getlibpath(), R_OK)) == NULL) { |
| 813 |
fprintf(stderr, "%s: cannot find file \"%s\"\n", |
| 814 |
progname, fname); |
| 815 |
exit(1); |
| 816 |
} |
| 817 |
if (fpath[0] == '.' && ISDIRSEP(fpath[1])) /* remove leading ./ */ |
| 818 |
fpath += 2; |
| 819 |
/* record path name */ |
| 820 |
strcpy(mainfn, fpath); |
| 821 |
if (expand) { /* change to local directory */ |
| 822 |
register char *cp = fpath + strlen(fpath); /* get dir. */ |
| 823 |
while (cp > fpath) { |
| 824 |
cp--; |
| 825 |
if (ISDIRSEP(*cp)) { |
| 826 |
if (cp == fpath) |
| 827 |
cp++; /* root special case */ |
| 828 |
break; |
| 829 |
} |
| 830 |
} |
| 831 |
*cp = '\0'; |
| 832 |
if (fpath[0]) { /* change to new directory? */ |
| 833 |
if (chdir(fpath) < 0) { |
| 834 |
fprintf(stderr, |
| 835 |
"%s: cannot change directory to \"%s\"\n", |
| 836 |
progname, fpath); |
| 837 |
exit(1); |
| 838 |
} |
| 839 |
diffdir++; |
| 840 |
} |
| 841 |
/* get final path component */ |
| 842 |
for (fpath = fname+strlen(fname); |
| 843 |
fpath > fname && !ISDIRSEP(fpath[-1]); fpath--) |
| 844 |
; |
| 845 |
} |
| 846 |
/* open the file */ |
| 847 |
if ((mainfp = fopen(fpath, "r")) == NULL) { |
| 848 |
fprintf(stderr, "%s: cannot open file \"%s\"\n", |
| 849 |
progname, mainfn); |
| 850 |
exit(1); |
| 851 |
} |
| 852 |
} |
| 853 |
#endif |
