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SoVertexShape.h

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_SOVERTEXSHAPE_H
00021 #define COIN_SOVERTEXSHAPE_H
00022 
00023 #include <Inventor/nodes/SoSubNode.h>
00024 #include <Inventor/nodes/SoShape.h>
00025 #include <Inventor/fields/SoSFNode.h>
00026 #ifndef COIN_INTERNAL
00027  // For Open Inventor compatibility.
00028  #include <Inventor/nodes/SoVertexProperty.h>
00029 #endif // !COIN_INTERNAL
00030 
00031 
00032 class SoNormalCache;
00033 class SoNormalBundle;
00034 class SbVec3f;
00035 class SoTextureCoordinateElement;
00036 class SoCoordinateElement;
00037 
00038 
00039 class COIN_DLL_API SoVertexShape : public SoShape {
00040   typedef SoShape inherited;
00041 
00042   SO_NODE_ABSTRACT_HEADER(SoVertexShape);
00043 
00044 public:
00045   static void initClass(void);
00046 
00047   SoSFNode vertexProperty;
00048 
00049   virtual void notify(SoNotList * nl);
00050   virtual SbBool generateDefaultNormals(SoState * state,
00051                                         SoNormalBundle * bundle);
00052   virtual SbBool generateDefaultNormals(SoState * state,
00053                                         SoNormalCache * cache);
00054   virtual void write(SoWriteAction * action);
00055 
00056 protected:
00057   SoVertexShape(void);
00058   virtual ~SoVertexShape();
00059 
00060   virtual SbBool shouldGLRender(SoGLRenderAction * action);
00061 
00062   void setNormalCache(SoState * const state,
00063                       const int num, const SbVec3f * normals);
00064   SoNormalCache * getNormalCache(void) const;
00065 
00066   void generateNormals(SoState * const state);
00067   void getVertexData(SoState * state,
00068                      const SoCoordinateElement *& coords,
00069                      const SbVec3f *& normals,
00070                      const SbBool neednormals);
00071 
00072 private:
00073   SoNormalCache * normalcache;
00074 };
00075 
00076 #endif // !COIN_SOVERTEXSHAPE_H

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