| 1 |
#ifndef lint |
| 2 |
static const char RCSid[] = "$Id: genbox.c,v 2.9 2021/04/07 21:13:52 greg Exp $"; |
| 3 |
#endif |
| 4 |
/* |
| 5 |
* genbox.c - generate a parallelepiped. |
| 6 |
* |
| 7 |
* 1/8/86 |
| 8 |
*/ |
| 9 |
|
| 10 |
#include "rtio.h" |
| 11 |
#include <stdlib.h> |
| 12 |
#include <math.h> |
| 13 |
|
| 14 |
|
| 15 |
char let[]="0123456789._ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; |
| 16 |
|
| 17 |
char *cmtype; /* ppd material type */ |
| 18 |
|
| 19 |
char *cname; /* ppd name */ |
| 20 |
|
| 21 |
double size[3]; /* ppd size */ |
| 22 |
|
| 23 |
double bevel = 0.0; /* bevel amount */ |
| 24 |
|
| 25 |
int rounde = 0; /* boolean true for round edges */ |
| 26 |
|
| 27 |
int reverse = 0; /* boolean true for reversed normals */ |
| 28 |
|
| 29 |
|
| 30 |
static void |
| 31 |
vertex(int v) |
| 32 |
{ |
| 33 |
int i; |
| 34 |
|
| 35 |
for (i = 0; i < 3; i++) { |
| 36 |
if (v & 010) |
| 37 |
printf("\t%18.12g", (v&01)^reverse ? size[i]-bevel : bevel); |
| 38 |
else |
| 39 |
printf("\t%18.12g", (v&01)^reverse ? size[i] : 0.0); |
| 40 |
v >>= 1; |
| 41 |
} |
| 42 |
fputc('\n', stdout); |
| 43 |
} |
| 44 |
|
| 45 |
|
| 46 |
static void |
| 47 |
side(int a, int b, int c, int d) /* generate a rectangular face */ |
| 48 |
{ |
| 49 |
printf("\n%s polygon %s.%c%c%c%c\n", cmtype, cname, |
| 50 |
let[a], let[b], let[c], let[d]); |
| 51 |
printf("0\n0\n12\n"); |
| 52 |
vertex(a); |
| 53 |
vertex(b); |
| 54 |
vertex(c); |
| 55 |
vertex(d); |
| 56 |
} |
| 57 |
|
| 58 |
|
| 59 |
static void |
| 60 |
corner(int a, int b, int c) /* generate a triangular face */ |
| 61 |
{ |
| 62 |
printf("\n%s polygon %s.%c%c%c\n", cmtype, cname, |
| 63 |
let[a], let[b], let[c]); |
| 64 |
printf("0\n0\n9\n"); |
| 65 |
vertex(a); |
| 66 |
vertex(b); |
| 67 |
vertex(c); |
| 68 |
} |
| 69 |
|
| 70 |
|
| 71 |
static void |
| 72 |
cylinder(int v0, int v1) /* generate a cylinder */ |
| 73 |
{ |
| 74 |
printf("\n%s cylinder %s.%c%c\n", cmtype, cname, v0+'0', v1+'0'); |
| 75 |
printf("0\n0\n7\n"); |
| 76 |
vertex(v0); |
| 77 |
vertex(v1); |
| 78 |
printf("\t%18.12g\n", bevel); |
| 79 |
} |
| 80 |
|
| 81 |
|
| 82 |
static void |
| 83 |
sphere(int v0) /* generate a sphere */ |
| 84 |
{ |
| 85 |
printf("\n%s sphere %s.%c\n", cmtype, cname, v0+'0'); |
| 86 |
printf("0\n0\n4\n"); |
| 87 |
vertex(v0); |
| 88 |
printf("\t%18.12g\n", bevel); |
| 89 |
} |
| 90 |
|
| 91 |
|
| 92 |
int |
| 93 |
main(int argc, char *argv[]) |
| 94 |
{ |
| 95 |
int i; |
| 96 |
|
| 97 |
if (argc < 6) |
| 98 |
goto userr; |
| 99 |
|
| 100 |
cmtype = argv[1]; |
| 101 |
cname = argv[2]; |
| 102 |
size[0] = atof(argv[3]); |
| 103 |
size[1] = atof(argv[4]); |
| 104 |
size[2] = atof(argv[5]); |
| 105 |
if ((size[0] <= 0.0) | (size[1] <= 0.0) | (size[2] <= 0.0)) |
| 106 |
goto userr; |
| 107 |
|
| 108 |
for (i = 6; i < argc; i++) { |
| 109 |
if (argv[i][0] != '-') |
| 110 |
goto userr; |
| 111 |
switch (argv[i][1]) { |
| 112 |
case 'i': |
| 113 |
reverse = 1; |
| 114 |
break; |
| 115 |
case 'r': |
| 116 |
rounde = 1; |
| 117 |
/* fall through */ |
| 118 |
case 'b': |
| 119 |
bevel = atof(argv[++i]); |
| 120 |
if (bevel > 0.0) |
| 121 |
break; |
| 122 |
/* fall through on error */ |
| 123 |
default: |
| 124 |
goto userr; |
| 125 |
} |
| 126 |
} |
| 127 |
if (rounde & reverse) |
| 128 |
fprintf(stderr, "%s: warning - option -i ignored with -r\n", |
| 129 |
argv[0]); |
| 130 |
|
| 131 |
fputs("# ", stdout); |
| 132 |
printargs(argc, argv, stdout); |
| 133 |
|
| 134 |
if (bevel > 0.0) { |
| 135 |
/* minor faces */ |
| 136 |
side(051, 055, 054, 050); |
| 137 |
side(064, 066, 062, 060); |
| 138 |
side(032, 033, 031, 030); |
| 139 |
side(053, 052, 056, 057); |
| 140 |
side(065, 061, 063, 067); |
| 141 |
side(036, 034, 035, 037); |
| 142 |
} |
| 143 |
if (bevel > 0.0 && !rounde) { |
| 144 |
/* bevel faces */ |
| 145 |
side(031, 051, 050, 030); |
| 146 |
side(060, 062, 032, 030); |
| 147 |
side(050, 054, 064, 060); |
| 148 |
side(034, 036, 066, 064); |
| 149 |
side(037, 057, 056, 036); |
| 150 |
side(052, 062, 066, 056); |
| 151 |
side(052, 053, 033, 032); |
| 152 |
side(057, 067, 063, 053); |
| 153 |
side(061, 031, 033, 063); |
| 154 |
side(065, 067, 037, 035); |
| 155 |
side(055, 051, 061, 065); |
| 156 |
side(034, 054, 055, 035); |
| 157 |
/* bevel corners */ |
| 158 |
corner(030, 050, 060); |
| 159 |
corner(051, 031, 061); |
| 160 |
corner(032, 062, 052); |
| 161 |
corner(064, 054, 034); |
| 162 |
corner(036, 056, 066); |
| 163 |
corner(065, 035, 055); |
| 164 |
corner(053, 063, 033); |
| 165 |
corner(037, 067, 057); |
| 166 |
} |
| 167 |
if (bevel > 0.0 && rounde) { |
| 168 |
/* round edges */ |
| 169 |
cylinder(070, 071); |
| 170 |
cylinder(070, 074); |
| 171 |
cylinder(070, 072); |
| 172 |
cylinder(073, 071); |
| 173 |
cylinder(073, 072); |
| 174 |
cylinder(073, 077); |
| 175 |
cylinder(075, 071); |
| 176 |
cylinder(075, 074); |
| 177 |
cylinder(075, 077); |
| 178 |
cylinder(076, 072); |
| 179 |
cylinder(076, 074); |
| 180 |
cylinder(076, 077); |
| 181 |
/* round corners */ |
| 182 |
sphere(070); |
| 183 |
sphere(071); |
| 184 |
sphere(072); |
| 185 |
sphere(073); |
| 186 |
sphere(074); |
| 187 |
sphere(075); |
| 188 |
sphere(076); |
| 189 |
sphere(077); |
| 190 |
} |
| 191 |
if (bevel == 0.0) { |
| 192 |
/* only need major faces */ |
| 193 |
side(1, 5, 4, 0); |
| 194 |
side(4, 6, 2, 0); |
| 195 |
side(2, 3, 1, 0); |
| 196 |
side(3, 2, 6, 7); |
| 197 |
side(5, 1, 3, 7); |
| 198 |
side(6, 4, 5, 7); |
| 199 |
} |
| 200 |
return(0); |
| 201 |
userr: |
| 202 |
fprintf(stderr, "Usage: %s ", argv[0]); |
| 203 |
fprintf(stderr, "material name xsize ysize zsize "); |
| 204 |
fprintf(stderr, "[-i] [-b bevel | -r round]\n"); |
| 205 |
return(1); |
| 206 |
} |
