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#ifndef lint |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Generate an analog clock. |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <math.h> |
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#include <ctype.h> |
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|
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#define PI 3.14159265358979323846 |
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|
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#define FACEBITMAP "clockface.hex" |
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|
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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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|
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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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|
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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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|
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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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|
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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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printf("0\n0\n7\t.05\t0\t0\n\t.12\t0\t0\n\t1\n"); |
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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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|
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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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|
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hrot = 2.*PI/12. * hour; |
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mrot = 2.*PI * (hour - floor(hour)); |
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|
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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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rvert(.06, -.03, -.06, hrot); |
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rvert(.06, .03, -.06, hrot); |
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rvert(.06, .025, .5, hrot); |
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rvert(.06, -.025, .5, hrot); |
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|
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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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rvert(.07, -.02, -.1, mrot); |
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rvert(.07, .02, -.1, mrot); |
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rvert(.07, .01, .9, mrot); |
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rvert(.07, -.01, .9, mrot); |
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} |
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|
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|
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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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static double lastang=0, sa=0, ca=1; |
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|
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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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printf("%15.12g %15.12g %15.12g\n", x, y*ca-z*sa, z*ca+y*sa); |
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} |
