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greg |
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/* Copyright (c) 1986 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#endif |
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/* |
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* genbeads.c - generate a string of spheres using Hermite |
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* curve specification. |
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* |
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* 10/29/85 |
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*/ |
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#include <stdio.h> |
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char *mtype; /* material type */ |
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char *name; /* name */ |
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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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double atof(); |
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double p0[3], p1[3], r0[3], r1[3]; |
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double rad, inc; |
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if (argc != 17) { |
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fprintf(stderr, "Usage: %s material name p0 p1 r0 r1 rad inc\n", |
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argv[0]); |
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exit(1); |
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} |
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mtype = argv[1]; |
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name = argv[2]; |
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p0[0] = atof(argv[3]); |
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p0[1] = atof(argv[4]); |
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p0[2] = atof(argv[5]); |
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p1[0] = atof(argv[6]); |
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p1[1] = atof(argv[7]); |
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p1[2] = atof(argv[8]); |
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r0[0] = atof(argv[9]); |
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r0[1] = atof(argv[10]); |
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r0[2] = atof(argv[11]); |
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r1[0] = atof(argv[12]); |
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r1[1] = atof(argv[13]); |
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r1[2] = atof(argv[14]); |
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rad = atof(argv[15]); |
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inc = atof(argv[16]); |
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genstring(mtype, name, p0, p1, r0, r1, rad, inc); |
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return(0); |
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} |
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genstring(mtype, name, p0, p1, r0, r1, rad, inc) |
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char *mtype; |
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char *name; |
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double p0[3]; |
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double p1[3]; |
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double r0[3]; |
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double r1[3]; |
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double rad; |
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double inc; |
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{ |
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double sqrt(); |
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register int i; |
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double v[3]; |
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double t; |
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t = 0.0; |
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for (i = 0; t <= 1.0; i++) { |
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printf("\n%s sphere %s.%d\n", mtype, name, i); |
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hermite3(v, p0, p1, r0, r1, t); |
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printf("0\n0\n4 %18.12g %18.12g %18.12g %18.12g\n", |
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v[0], v[1], v[2], rad); |
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htan3(v, p0, p1, r0, r1, t); |
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t += inc / sqrt(v[0]*v[0] + v[1]*v[1] + v[2]*v[2]); |
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} |
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} |
