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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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/* RCSid $Id$ */ |
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/* |
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* Declarations for floating-point vector operations. |
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*/ |
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/* SCCSid "$SunId$ SGI" */ |
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#include "copyright.h" |
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#ifdef SMLFLT |
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#define FLOAT float |
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(vr)[1]=(v1)[2]*(v2)[0]-(v1)[0]*(v2)[2], \ |
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(vr)[2]=(v1)[0]*(v2)[1]-(v1)[1]*(v2)[0]) |
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#ifdef NOPROTO |
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extern double fdot(), dist2(), dist2lseg(), dist2line(), normalize(); |
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extern void fcross(), fvsum(), spinvector(); |
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#else |
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extern double fdot(FVECT v1, FVECT v2); |
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extern double dist2(FVECT v1, FVECT v2); |
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extern double dist2line(FVECT p, FVECT ep1, FVECT ep2); |
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extern double dist2lseg(FVECT p, FVECT ep1, FVECT ep2); |
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extern void fcross(FVECT vres, FVECT v1, FVECT v2); |
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extern void fvsum(FVECT vres, FVECT v0, FVECT v1, double f); |
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extern double normalize(FVECT v); |
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extern void spinvector(FVECT vres, FVECT vorig, FVECT vnorm, double theta); |
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#endif |
