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* 1/8/86 |
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*/ |
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< |
#include <stdio.h> |
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< |
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< |
#include <stdlib.h> |
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< |
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> |
#include "rtio.h" |
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> |
#include <stdlib.h> |
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#include <math.h> |
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double bevel = 0.0; /* bevel amount */ |
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< |
int rounde = 0; /* boolean true for rounde edges */ |
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> |
int rounde = 0; /* boolean true for round edges */ |
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int reverse = 0; /* boolean true for reversed normals */ |
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– |
|
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static void |
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< |
vertex(v) |
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< |
register int v; |
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> |
vertex(int v) |
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{ |
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< |
register int i; |
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> |
int i; |
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|
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for (i = 0; i < 3; i++) { |
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if (v & 010) |
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printf("\t%18.12g", v & 01 ? size[i]-bevel : bevel); |
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> |
printf("\t%18.12g", (v&01)^reverse ? size[i]-bevel : bevel); |
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else |
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printf("\t%18.12g", v & 01 ? size[i] : 0.0); |
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> |
printf("\t%18.12g", (v&01)^reverse ? size[i] : 0.0); |
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v >>= 1; |
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} |
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printf("\n"); |
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> |
fputc('\n', stdout); |
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} |
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static void |
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side(a, b, c, d) /* generate a rectangular face */ |
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< |
int a, b, c, d; |
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> |
side(int a, int b, int c, int d) /* generate a rectangular face */ |
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{ |
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printf("\n%s polygon %s.%c%c%c%c\n", cmtype, cname, |
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let[a], let[b], let[c], let[d]); |
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printf("0\n0\n12\n"); |
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< |
if (reverse) { |
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< |
vertex(d); |
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< |
vertex(c); |
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< |
vertex(b); |
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< |
vertex(a); |
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< |
} else { |
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< |
vertex(a); |
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< |
vertex(b); |
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< |
vertex(c); |
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< |
vertex(d); |
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< |
} |
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> |
vertex(a); |
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> |
vertex(b); |
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> |
vertex(c); |
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> |
vertex(d); |
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} |
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static void |
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corner(a, b, c) /* generate a triangular face */ |
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< |
int a, b, c; |
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> |
corner(int a, int b, int c) /* generate a triangular face */ |
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{ |
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printf("\n%s polygon %s.%c%c%c\n", cmtype, cname, |
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let[a], let[b], let[c]); |
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printf("0\n0\n9\n"); |
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< |
if (reverse) { |
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vertex(c); |
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< |
vertex(b); |
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< |
vertex(a); |
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< |
} else { |
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< |
vertex(a); |
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< |
vertex(b); |
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< |
vertex(c); |
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< |
} |
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> |
vertex(a); |
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> |
vertex(b); |
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> |
vertex(c); |
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} |
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static void |
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< |
cylinder(v0, v1) /* generate a cylinder */ |
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< |
int v0, v1; |
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> |
cylinder(int v0, int v1) /* generate a cylinder */ |
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{ |
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printf("\n%s cylinder %s.%c%c\n", cmtype, cname, v0+'0', v1+'0'); |
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printf("0\n0\n7\n"); |
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} |
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< |
sphere(v0) /* generate a sphere */ |
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< |
int v0; |
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> |
static void |
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> |
sphere(int v0) /* generate a sphere */ |
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{ |
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printf("\n%s sphere %s.%c\n", cmtype, cname, v0+'0'); |
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printf("0\n0\n4\n"); |
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} |
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< |
printhead(ac, av) /* print command header */ |
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< |
register int ac; |
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< |
register char **av; |
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> |
int |
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> |
main(int argc, char *argv[]) |
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{ |
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– |
putchar('#'); |
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– |
while (ac--) { |
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– |
putchar(' '); |
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– |
fputs(*av++, stdout); |
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– |
} |
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putchar('\n'); |
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– |
} |
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– |
|
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– |
main(argc, argv) |
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int argc; |
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– |
char **argv; |
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– |
{ |
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int i; |
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|
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if (argc < 6) |
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size[0] = atof(argv[3]); |
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size[1] = atof(argv[4]); |
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size[2] = atof(argv[5]); |
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+ |
if ((size[0] <= 0.0) | (size[1] <= 0.0) | (size[2] <= 0.0)) |
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+ |
goto userr; |
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for (i = 6; i < argc; i++) { |
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if (argv[i][0] != '-') |
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goto userr; |
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switch (argv[i][1]) { |
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+ |
case 'i': |
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+ |
reverse = 1; |
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+ |
break; |
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case 'r': |
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rounde = 1; |
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/* fall through */ |
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case 'b': |
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bevel = atof(argv[++i]); |
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< |
break; |
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< |
case 'i': |
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< |
reverse = 1; |
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< |
break; |
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> |
if (bevel > 0.0) |
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> |
break; |
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> |
/* fall through on error */ |
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default: |
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goto userr; |
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} |
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} |
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+ |
if (rounde & reverse) |
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fprintf(stderr, "%s: warning - option -i ignored with -r\n", |
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+ |
argv[0]); |
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|
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< |
printhead(argc, argv); |
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> |
fputs("# ", stdout); |
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> |
printargs(argc, argv, stdout); |
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if (bevel > 0.0) { |
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/* minor faces */ |
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corner(037, 067, 057); |
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} |
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if (bevel > 0.0 && rounde) { |
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< |
/* rounde edges */ |
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> |
/* round edges */ |
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cylinder(070, 071); |
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cylinder(070, 074); |
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cylinder(070, 072); |
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cylinder(076, 072); |
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cylinder(076, 074); |
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cylinder(076, 077); |
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< |
/* rounde corners */ |
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> |
/* round corners */ |
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sphere(070); |
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sphere(071); |
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sphere(072); |
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sphere(076); |
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sphere(077); |
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} |
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< |
if (bevel == 0.0 ) { |
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> |
if (bevel == 0.0) { |
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/* only need major faces */ |
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side(1, 5, 4, 0); |
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side(4, 6, 2, 0); |
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side(5, 1, 3, 7); |
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side(6, 4, 5, 7); |
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} |
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< |
exit(0); |
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> |
return(0); |
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userr: |
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fprintf(stderr, "Usage: %s ", argv[0]); |
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fprintf(stderr, "material name xsize ysize zsize "); |
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< |
fprintf(stderr, "[-i] [-b bevel | -r rounde]\n"); |
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< |
exit(1); |
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> |
fprintf(stderr, "[-i] [-b bevel | -r round]\n"); |
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> |
return(1); |
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} |
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– |
|
