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/* RCSid: $Id$ */ |
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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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#ifndef _RAD_FVECT_H_ |
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#define _RAD_FVECT_H_ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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|
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/* ==================================================================== |
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* The Radiance Software License, Version 1.0 |
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* |
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* Copyright (c) 1990 - 2002 The Regents of the University of California, |
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* through Lawrence Berkeley National Laboratory. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, |
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* if any, must include the following acknowledgment: |
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* "This product includes Radiance software |
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* (http://radsite.lbl.gov/) |
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* developed by the Lawrence Berkeley National Laboratory |
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* (http://www.lbl.gov/)." |
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* Alternately, this acknowledgment may appear in the software itself, |
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* if and wherever such third-party acknowledgments normally appear. |
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* |
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* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
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* and "The Regents of the University of California" must |
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* not be used to endorse or promote products derived from this |
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* software without prior written permission. For written |
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* permission, please contact [email protected]. |
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* |
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* 5. Products derived from this software may not be called "Radiance", |
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* nor may "Radiance" appear in their name, without prior written |
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* permission of Lawrence Berkeley National Laboratory. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This software consists of voluntary contributions made by many |
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* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
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* information on Lawrence Berkeley National Laboratory, please see |
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* <http://www.lbl.gov/>. |
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*/ |
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|
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#ifdef SMLFLT |
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#define FLOAT float |
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#define RREAL float |
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#define FTINY (1e-3) |
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#else |
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#define FLOAT double |
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#define RREAL double |
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#define FTINY (1e-6) |
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#endif |
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#define FHUGE (1e10) |
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typedef FLOAT FVECT[3]; |
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typedef RREAL FVECT[3]; |
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#define VCOPY(v1,v2) ((v1)[0]=(v2)[0],(v1)[1]=(v2)[1],(v1)[2]=(v2)[2]) |
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#define DOT(v1,v2) ((v1)[0]*(v2)[0]+(v1)[1]*(v2)[1]+(v1)[2]*(v2)[2]) |
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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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|
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#ifdef NOPROTO |
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|
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extern double fdot(), dist2(), dist2lseg(), dist2line(), normalize(); |
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extern void fcross(), fvsum(), spinvector(); |
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|
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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 fdot(const FVECT v1, const FVECT v2); |
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extern double dist2(const FVECT v1, const FVECT v2); |
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extern double dist2line(const FVECT p, const FVECT ep1, const FVECT ep2); |
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extern double dist2lseg(const FVECT p, const FVECT ep1, const FVECT ep2); |
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extern void fcross(FVECT vres, const FVECT v1, const FVECT v2); |
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extern void fvsum(FVECT vres, const FVECT v0, const 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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extern int closestapproach(RREAL t[2], |
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const FVECT rorg0, const FVECT rdir0, |
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const FVECT rorg1, const FVECT rdir1); |
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extern void spinvector(FVECT vres, const FVECT vorig, |
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const FVECT vnorm, double theta); |
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|
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* _RAD_FVECT_H_ */ |
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|
