00001 /**************************************************************************\ 00002 * 00003 * This file is part of the Coin 3D visualization library. 00004 * Copyright (C) 1998-2002 by Systems in Motion. All rights reserved. 00005 * 00006 * This library is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU Lesser General Public License 00008 * version 2.1 as published by the Free Software Foundation. See the 00009 * file LICENSE.LGPL at the root directory of the distribution for 00010 * more details. 00011 * 00012 * If you want to use Coin for applications not compatible with the 00013 * LGPL, please contact SIM to acquire a Professional Edition license. 00014 * 00015 * Systems in Motion, Prof Brochs gate 6, 7030 Trondheim, NORWAY 00016 * http://www.sim.no support@sim.no Voice: +47 22114160 Fax: +47 22207097 00017 * 00018 \**************************************************************************/ 00019 00020 #ifndef COIN_SBPLANE_H 00021 #define COIN_SBPLANE_H 00022 00023 #include <stdio.h> 00024 00025 #include <Inventor/SbVec3f.h> 00026 00027 class SbLine; 00028 class SbMatrix; 00029 00030 class COIN_DLL_API SbPlane { 00031 public: 00032 SbPlane(void); 00033 SbPlane(const SbVec3f& normal, const float D); 00034 SbPlane(const SbVec3f& p0, const SbVec3f& p1, const SbVec3f& p2); 00035 SbPlane(const SbVec3f& normal, const SbVec3f& point); 00036 00037 void offset(const float d); 00038 SbBool intersect(const SbLine& l, SbVec3f& intersection) const; 00039 void transform(const SbMatrix& matrix); 00040 SbBool isInHalfSpace(const SbVec3f& point) const; 00041 float getDistance(const SbVec3f &point) const; 00042 const SbVec3f& getNormal(void) const; 00043 float getDistanceFromOrigin(void) const; 00044 friend COIN_DLL_API int operator ==(const SbPlane& p1, const SbPlane& p2); 00045 friend COIN_DLL_API int operator !=(const SbPlane& p1, const SbPlane& p2); 00046 00047 void print(FILE * file) const; 00048 00049 private: 00050 SbVec3f normal; 00051 float distance; 00052 }; 00053 00054 COIN_DLL_API int operator ==(const SbPlane& p1, const SbPlane& p2); 00055 COIN_DLL_API int operator !=(const SbPlane& p1, const SbPlane& p2); 00056 00057 #endif // !COIN_SBPLANE_H