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00001 #ifndef COIN_SOCULLELEMENT_H 00002 #define COIN_SOCULLELEMENT_H 00003 00004 /**************************************************************************\ 00005 * 00006 * This file is part of the Coin 3D visualization library. 00007 * Copyright (C) by Kongsberg Oil & Gas Technologies. 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 Kongsberg Oil & Gas Technologies 00018 * about acquiring a Coin Professional Edition License. 00019 * 00020 * See http://www.coin3d.org/ for more information. 00021 * 00022 * Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY. 00023 * http://www.sim.no/ sales@sim.no coin-support@coin3d.org 00024 * 00025 \**************************************************************************/ 00026 00027 #include <Inventor/elements/SoSubElement.h> 00028 #include <Inventor/SbPlane.h> 00029 00030 class SbBox3f; 00031 class SbViewVolume; 00032 00033 class COIN_DLL_API SoCullElement : public SoElement { 00034 typedef SoElement inherited; 00035 00036 SO_ELEMENT_HEADER(SoCullElement); 00037 public: 00038 static void initClass(void); 00039 protected: 00040 virtual ~SoCullElement(); 00041 00042 public: 00043 00044 virtual void init(SoState * state); 00045 virtual void push(SoState * state); 00046 00047 static void setViewVolume(SoState * state, const SbViewVolume & vv); 00048 static void addPlane(SoState * state, const SbPlane & newplane); 00049 static SbBool cullBox(SoState * state, const SbBox3f & box, const SbBool transform = TRUE); 00050 static SbBool cullTest(SoState * state, const SbBox3f & box, const SbBool transform = TRUE); 00051 static SbBool completelyInside(SoState * state); 00052 00053 virtual SbBool matches(const SoElement * elt) const; 00054 virtual SoElement * copyMatchInfo(void) const; 00055 00056 private: 00057 00058 enum { MAXPLANES = 32 }; 00059 00060 static SbBool docull(SoState * state, const SbBox3f & box, const SbBool transform, 00061 const SbBool updateelem); 00062 00063 SbPlane plane[MAXPLANES]; 00064 int numplanes; 00065 unsigned int flags; 00066 int vvindex; 00067 }; 00068 00069 #endif // !COIN_SOCULLELEMENT_H
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