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SbPlane.h

00001 #ifndef COIN_SBPLANE_H
00002 #define COIN_SBPLANE_H
00003 
00004 /**************************************************************************\
00005  *
00006  *  This file is part of the Coin 3D visualization library.
00007  *  Copyright (C) 1998-2007 by Systems in Motion.  All rights reserved.
00008  *
00009  *  This library is free software; you can redistribute it and/or
00010  *  modify it under the terms of the GNU General Public License
00011  *  ("GPL") version 2 as published by the Free Software Foundation.
00012  *  See the file LICENSE.GPL at the root directory of this source
00013  *  distribution for additional information about the GNU GPL.
00014  *
00015  *  For using Coin with software that can not be combined with the GNU
00016  *  GPL, and for taking advantage of the additional benefits of our
00017  *  support services, please contact Systems in Motion about acquiring
00018  *  a Coin Professional Edition License.
00019  *
00020  *  See http://www.coin3d.org/ for more information.
00021  *
00022  *  Systems in Motion, Postboks 1283, Pirsenteret, 7462 Trondheim, NORWAY.
00023  *  http://www.sim.no/  sales@sim.no  coin-support@coin3d.org
00024  *
00025 \**************************************************************************/
00026 
00027 #include <stdio.h>
00028 
00029 #include <Inventor/SbVec3f.h>
00030 
00031 class SbLine;
00032 class SbMatrix;
00033 
00034 class COIN_DLL_API SbPlane {
00035 public:
00036   SbPlane(void);
00037   SbPlane(const SbVec3f& normal, const float D);
00038   SbPlane(const SbVec3f& p0, const SbVec3f& p1, const SbVec3f& p2);
00039   SbPlane(const SbVec3f& normal, const SbVec3f& point);
00040 
00041   void offset(const float d);
00042   SbBool intersect(const SbLine& l, SbVec3f& intersection) const;
00043   void transform(const SbMatrix& matrix);
00044   SbBool isInHalfSpace(const SbVec3f& point) const;
00045   float getDistance(const SbVec3f &point) const;
00046   const SbVec3f& getNormal(void) const;
00047   float getDistanceFromOrigin(void) const;
00048   friend COIN_DLL_API int operator ==(const SbPlane& p1, const SbPlane& p2);
00049   friend COIN_DLL_API int operator !=(const SbPlane& p1, const SbPlane& p2);
00050 
00051   void print(FILE * file) const;
00052 
00053   SbBool intersect(const SbPlane & pl, SbLine & line);
00054 
00055 private:
00056   SbVec3f normal;
00057   float distance;
00058 };
00059 
00060 COIN_DLL_API int operator ==(const SbPlane& p1, const SbPlane& p2);
00061 COIN_DLL_API int operator !=(const SbPlane& p1, const SbPlane& p2);
00062 
00063 #endif // !COIN_SBPLANE_H

Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.

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