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greg |
2.1 |
#ifndef lint
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greg |
2.4 |
static const char RCSid[] = "$Id$";
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greg |
2.1 |
#endif
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/*
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* Generate an analog clock.
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*/
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#include <stdio.h>
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greg |
2.4 |
#include <stdlib.h>
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greg |
2.1 |
#include <math.h>
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#include <ctype.h>
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#define PI 3.14159265358979323846
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#define FACEBITMAP "clockface.hex"
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char myfacemat[] = "white_plastic";
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double myfacearg[5] = {.85,.85,.85,0,0};
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char mycasemat[] = "black_plastic";
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double mycasearg[5] = {.08,.08,.08,.03,.04};
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char *facemat = myfacemat;
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char *casemat = mycasemat;
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char *name = "clock";
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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, j;
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double hour;
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for (i = 1; i < argc && argv[i][0] == '-'; i++)
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switch (argv[i][1]) {
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case 'f':
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facemat = argv[++i];
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break;
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case 'c':
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casemat = argv[++i];
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break;
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case 'n':
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name = argv[++i];
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break;
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default:
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goto userr;
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}
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if (i >= argc)
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goto userr;
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if (!isdigit(argv[i][0]))
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goto userr;
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for (j = 1; isdigit(argv[i][j]); j++)
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;
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if (argv[i][j] == ':')
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hour = atoi(argv[i]) + atoi(argv[i]+j+1)/60.0;
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else if (!argv[i][j] || argv[i][j] == '.')
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hour = atof(argv[i]);
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else
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goto userr;
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putchar('#'); /* print header */
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for (i = 0; i < argc; i++) {
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putchar(' ');
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fputs(argv[i], stdout);
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}
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putchar('\n');
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genmats(); /* print materials */
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genclock(); /* generate clock */
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genhands(hour); /* generate hands */
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exit(0);
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userr:
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fputs("Usage: ", stderr);
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fputs(argv[0], stderr);
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fputs(" [-f face_mat][-c case_mat][-n name] {HH:MM | HH.hh}\n", stderr);
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exit(1);
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}
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genmats() /* put out our materials */
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{
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if (facemat == myfacemat)
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printf("\nvoid plastic %s\n0\n0\n5 %f %f %f %f %f\n",
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myfacemat, myfacearg[0], myfacearg[1],
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myfacearg[2], myfacearg[3], myfacearg[4]);
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if (casemat == mycasemat)
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printf("\nvoid plastic %s\n0\n0\n5 %f %f %f %f %f\n",
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mycasemat, mycasearg[0], mycasearg[1],
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mycasearg[2], mycasearg[3], mycasearg[4]);
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printf("\n%s brighttext clock_face_paint\n2 hexbit4x1.fnt %s\n",
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facemat, FACEBITMAP);
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printf("0\n11\n\t0\t-1\t1\n\t0\t.0185\t0\n\t0\t0\t-.00463\n");
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printf("\t.02\t1\n");
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printf("\nvoid glass clock_crystal\n0\n0\n3 .95 .95 .95\n");
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printf("\nvoid plastic hand_paint\n0\n0\n5 .03 .03 .03 0 0\n");
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}
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genclock() /* put out clock body */
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{
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printf("\n%s ring %s.case_back\n", casemat, name);
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printf("0\n0\n8\t0\t0\t0\n\t-1\t0\t0\n\t0\t1.1\n");
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printf("\n%s cylinder %s.case_outer\n", casemat, name);
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printf("0\n0\n7\t0\t0\t0\n\t.12\t0\t0\n\t1.1\n");
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printf("\n%s ring %s.case_front\n", casemat, name);
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printf("0\n0\n8\t.12\t0\t0\n\t1\t0\t0\n\t1\t1.1\n");
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printf("\n%s cylinder %s.case_inner\n", casemat, name);
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greg |
2.3 |
printf("0\n0\n7\t.05\t0\t0\n\t.12\t0\t0\n\t1\n");
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greg |
2.1 |
printf("\nclock_crystal ring %s.crystal\n", name);
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printf("0\n0\n8\t.10\t0\t0\n\t1\t0\t0\n\t0\t1\n");
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printf("\nclock_face_paint ring %s.face\n", name);
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printf("0\n0\n8\t.05\t0\t0\n\t1\t0\t0\n\t0\t1\n");
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}
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genhands(hour) /* generate correct hand positions */
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double hour;
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{
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double hrot, mrot;
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hrot = 2.*PI/12. * hour;
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mrot = 2.*PI * (hour - floor(hour));
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printf("\nhand_paint polygon %s.hour_hand\n", name);
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printf("0\n0\n12\n");
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greg |
2.2 |
rvert(.06, -.03, -.06, hrot);
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rvert(.06, .03, -.06, hrot);
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greg |
2.1 |
rvert(.06, .025, .5, hrot);
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rvert(.06, -.025, .5, hrot);
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printf("\nhand_paint polygon %s.minute_hand\n", name);
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printf("0\n0\n12\n");
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greg |
2.2 |
rvert(.07, -.02, -.1, mrot);
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rvert(.07, .02, -.1, mrot);
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greg |
2.1 |
rvert(.07, .01, .9, mrot);
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rvert(.07, -.01, .9, mrot);
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}
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| 136 |
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rvert(x, y, z, ang) /* print rotated vertex */
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double x, y, z, ang;
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{
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greg |
2.2 |
static double lastang=0, sa=0, ca=1;
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| 140 |
greg |
2.1 |
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greg |
2.2 |
if (ang != lastang) {
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sa = sin(-ang);
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ca = cos(-ang);
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lastang = ang;
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}
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greg |
2.1 |
printf("%15.12g %15.12g %15.12g\n", x, y*ca-z*sa, z*ca+y*sa);
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}
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