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root/radiance/ray/src/gen/genclock.c
Revision: 2.1
Committed: Thu May 25 16:34:47 1995 UTC (28 years, 9 months ago) by greg
Content type: text/plain
Branch: MAIN
Log Message:
Initial revision

File Contents

# User Rev Content
1 greg 2.1 /* Copyright (c) 1995 Regents of the University of California */
2    
3     #ifndef lint
4     static char SCCSid[] = "$SunId$ LBL";
5     #endif
6    
7     /*
8     * Generate an analog clock.
9     */
10    
11     #include <stdio.h>
12     #include <math.h>
13     #include <ctype.h>
14    
15     #define PI 3.14159265358979323846
16    
17     #ifdef DCL_ATOF
18     extern double atof();
19     #endif
20    
21     #define FACEBITMAP "clockface.hex"
22    
23     char myfacemat[] = "white_plastic";
24     double myfacearg[5] = {.85,.85,.85,0,0};
25     char mycasemat[] = "black_plastic";
26     double mycasearg[5] = {.08,.08,.08,.03,.04};
27     char *facemat = myfacemat;
28     char *casemat = mycasemat;
29     char *name = "clock";
30    
31     main(argc, argv)
32     int argc;
33     char *argv[];
34     {
35     int i, j;
36     double hour;
37    
38     for (i = 1; i < argc && argv[i][0] == '-'; i++)
39     switch (argv[i][1]) {
40     case 'f':
41     facemat = argv[++i];
42     break;
43     case 'c':
44     casemat = argv[++i];
45     break;
46     case 'n':
47     name = argv[++i];
48     break;
49     default:
50     goto userr;
51     }
52     if (i >= argc)
53     goto userr;
54     if (!isdigit(argv[i][0]))
55     goto userr;
56     for (j = 1; isdigit(argv[i][j]); j++)
57     ;
58     if (argv[i][j] == ':')
59     hour = atoi(argv[i]) + atoi(argv[i]+j+1)/60.0;
60     else if (!argv[i][j] || argv[i][j] == '.')
61     hour = atof(argv[i]);
62     else
63     goto userr;
64     putchar('#'); /* print header */
65     for (i = 0; i < argc; i++) {
66     putchar(' ');
67     fputs(argv[i], stdout);
68     }
69     putchar('\n');
70     genmats(); /* print materials */
71     genclock(); /* generate clock */
72     genhands(hour); /* generate hands */
73     exit(0);
74     userr:
75     fputs("Usage: ", stderr);
76     fputs(argv[0], stderr);
77     fputs(" [-f face_mat][-c case_mat][-n name] {HH:MM | HH.hh}\n", stderr);
78     exit(1);
79     }
80    
81    
82     genmats() /* put out our materials */
83     {
84     if (facemat == myfacemat)
85     printf("\nvoid plastic %s\n0\n0\n5 %f %f %f %f %f\n",
86     myfacemat, myfacearg[0], myfacearg[1],
87     myfacearg[2], myfacearg[3], myfacearg[4]);
88     if (casemat == mycasemat)
89     printf("\nvoid plastic %s\n0\n0\n5 %f %f %f %f %f\n",
90     mycasemat, mycasearg[0], mycasearg[1],
91     mycasearg[2], mycasearg[3], mycasearg[4]);
92     printf("\n%s brighttext clock_face_paint\n2 hexbit4x1.fnt %s\n",
93     facemat, FACEBITMAP);
94     printf("0\n11\n\t0\t-1\t1\n\t0\t.0185\t0\n\t0\t0\t-.00463\n");
95     printf("\t.02\t1\n");
96     printf("\nvoid glass clock_crystal\n0\n0\n3 .95 .95 .95\n");
97     printf("\nvoid plastic hand_paint\n0\n0\n5 .03 .03 .03 0 0\n");
98     }
99    
100    
101     genclock() /* put out clock body */
102     {
103     printf("\n%s ring %s.case_back\n", casemat, name);
104     printf("0\n0\n8\t0\t0\t0\n\t-1\t0\t0\n\t0\t1.1\n");
105     printf("\n%s cylinder %s.case_outer\n", casemat, name);
106     printf("0\n0\n7\t0\t0\t0\n\t.12\t0\t0\n\t1.1\n");
107     printf("\n%s ring %s.case_front\n", casemat, name);
108     printf("0\n0\n8\t.12\t0\t0\n\t1\t0\t0\n\t1\t1.1\n");
109     printf("\n%s cylinder %s.case_inner\n", casemat, name);
110     printf("0\n0\n7\t.05\t0\t0\n\t.15\t0\t0\n\t1\n");
111     printf("\nclock_crystal ring %s.crystal\n", name);
112     printf("0\n0\n8\t.10\t0\t0\n\t1\t0\t0\n\t0\t1\n");
113     printf("\nclock_face_paint ring %s.face\n", name);
114     printf("0\n0\n8\t.05\t0\t0\n\t1\t0\t0\n\t0\t1\n");
115     }
116    
117    
118     genhands(hour) /* generate correct hand positions */
119     double hour;
120     {
121     double hrot, mrot;
122    
123     hrot = 2.*PI/12. * hour;
124     mrot = 2.*PI * (hour - floor(hour));
125    
126     printf("\nhand_paint polygon %s.hour_hand\n", name);
127     printf("0\n0\n12\n");
128     rvert(.06, -.03, -.03, hrot);
129     rvert(.06, .03, -.03, hrot);
130     rvert(.06, .025, .5, hrot);
131     rvert(.06, -.025, .5, hrot);
132    
133     printf("\nhand_paint polygon %s.minute_hand\n", name);
134     printf("0\n0\n12\n");
135     rvert(.07, -.02, -.04, mrot);
136     rvert(.07, .02, -.04, mrot);
137     rvert(.07, .01, .9, mrot);
138     rvert(.07, -.01, .9, mrot);
139     }
140    
141    
142     rvert(x, y, z, ang) /* print rotated vertex */
143     double x, y, z, ang;
144     {
145     double sa, ca;
146    
147     sa = sin(-ang);
148     ca = cos(-ang);
149     printf("%15.12g %15.12g %15.12g\n", x, y*ca-z*sa, z*ca+y*sa);
150     }