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SoShape.h

00001 /**************************************************************************\ 00002 * 00003 * This file is part of the Coin 3D visualization library. 00004 * Copyright (C) 1998-2003 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, Teknobyen, Abels Gate 5, 7030 Trondheim, NORWAY 00016 * http://www.sim.no support@sim.no Voice: +47 22114160 Fax: +47 22207097 00017 * 00018 \**************************************************************************/ 00019 00020 #ifndef COIN_SOSHAPE_H 00021 #define COIN_SOSHAPE_H 00022 00023 #include <Inventor/nodes/SoSubNode.h> 00024 #include <Inventor/SbMatrix.h> 00025 #include <Inventor/SbVec2s.h> 00026 #include <Inventor/SbBox3f.h> 00027 00028 class SoPrimitiveVertex; 00029 class SoDetail; 00030 class SoPickedPoint; 00031 class SoFaceDetail; 00032 class SoState; 00033 class SoTextureCoordinateElement; 00034 class SbVec2f; 00035 class SoMaterialBundle; 00036 00037 00038 class COIN_DLL_API SoShape : public SoNode { 00039 typedef SoNode inherited; 00040 00041 SO_NODE_ABSTRACT_HEADER(SoShape); 00042 00043 public: 00044 static void initClass(void); 00045 00046 enum TriangleShape { 00047 TRIANGLE_STRIP, TRIANGLE_FAN, TRIANGLES, POLYGON, 00048 // The rest of the enums are not part of the original Inventor API. 00049 QUADS, QUAD_STRIP, POINTS, LINES, LINE_STRIP 00050 }; 00051 00052 virtual SbBool affectsState(void) const; 00053 00054 virtual void getBoundingBox(SoGetBoundingBoxAction * action); 00055 virtual void GLRender(SoGLRenderAction * action); 00056 virtual void rayPick(SoRayPickAction * action); 00057 virtual void callback(SoCallbackAction * action); 00058 virtual void computeBBox(SoAction * action, SbBox3f & box, 00059 SbVec3f & center) = 0; 00060 virtual void getPrimitiveCount(SoGetPrimitiveCountAction * action); 00061 00062 static void getScreenSize(SoState * const state, const SbBox3f & boundingbox, 00063 SbVec2s & rectsize); 00064 static float getDecimatedComplexity(SoState * state, float complexity); 00065 00066 protected: 00067 SoShape(void); 00068 virtual ~SoShape(); 00069 00070 float getComplexityValue(SoAction * action); 00071 virtual void generatePrimitives(SoAction * action) = 0; 00072 virtual SbBool shouldGLRender(SoGLRenderAction * action); 00073 void beginSolidShape(SoGLRenderAction * action); 00074 void endSolidShape(SoGLRenderAction * action); 00075 void GLRenderBoundingBox(SoGLRenderAction * action); 00076 SbBool shouldPrimitiveCount(SoGetPrimitiveCountAction * action); 00077 00078 SbBool shouldRayPick(SoRayPickAction * const action); 00079 void computeObjectSpaceRay(SoRayPickAction * const action); 00080 void computeObjectSpaceRay(SoRayPickAction * const action, 00081 const SbMatrix & matrix); 00082 virtual SoDetail * createTriangleDetail(SoRayPickAction * action, 00083 const SoPrimitiveVertex * v1, 00084 const SoPrimitiveVertex * v2, 00085 const SoPrimitiveVertex * v3, 00086 SoPickedPoint * pp); 00087 virtual SoDetail * createLineSegmentDetail(SoRayPickAction * action, 00088 const SoPrimitiveVertex * v1, 00089 const SoPrimitiveVertex * v2, 00090 SoPickedPoint * pp); 00091 virtual SoDetail * createPointDetail(SoRayPickAction * action, 00092 const SoPrimitiveVertex * v, 00093 SoPickedPoint * pp); 00094 00095 void invokeTriangleCallbacks(SoAction * const action, 00096 const SoPrimitiveVertex * const v1, 00097 const SoPrimitiveVertex * const v2, 00098 const SoPrimitiveVertex * const v3); 00099 void invokeLineSegmentCallbacks(SoAction * const action, 00100 const SoPrimitiveVertex * const v1, 00101 const SoPrimitiveVertex * const v2); 00102 void invokePointCallbacks(SoAction * const action, 00103 const SoPrimitiveVertex * const v); 00104 void beginShape(SoAction * const action, const TriangleShape shapetype, 00105 SoDetail * const detail = NULL); 00106 void shapeVertex(const SoPrimitiveVertex * const v); 00107 void endShape(void); 00108 00109 void generateVertex(SoPrimitiveVertex * const pv, 00110 const SbVec3f & point, 00111 const SbBool useTexFunc, 00112 const SoTextureCoordinateElement * const tce, 00113 const float s, 00114 const float t, 00115 const SbVec3f & normal); 00116 00117 private: 00118 void rayPickBoundingBox(SoRayPickAction * action); 00119 friend class shapePrimitiveData; // internal class 00120 friend class so_generate_prim_private; // a very private class 00121 }; 00122 00123 #endif // !COIN_SOSHAPE_H

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