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SoLineSet.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_SOLINESET_H
00021 #define COIN_SOLINESET_H
00022 
00023 #include <Inventor/nodes/SoSubNode.h>
00024 #include <Inventor/nodes/SoNonIndexedShape.h>
00025 #include <Inventor/fields/SoMFInt32.h>
00026 
00027 
00028 class COIN_DLL_API SoLineSet : public SoNonIndexedShape {
00029   typedef SoNonIndexedShape inherited;
00030 
00031   SO_NODE_HEADER(SoLineSet);
00032 
00033 public:
00034   static void initClass(void);
00035   SoLineSet(void);
00036 
00037 public:
00038   SoMFInt32 numVertices;
00039 
00040   virtual void GLRender(SoGLRenderAction * action);
00041   virtual void getBoundingBox(SoGetBoundingBoxAction * action);
00042   virtual void getPrimitiveCount(SoGetPrimitiveCountAction * action);
00043 
00044 protected:
00045   virtual ~SoLineSet();
00046 
00047   virtual void generatePrimitives(SoAction * action);
00048   virtual void computeBBox(SoAction * action, SbBox3f & box, SbVec3f & center);
00049 
00050 private:
00051   virtual SbBool generateDefaultNormals(SoState *, SoNormalCache * nc);
00052   virtual SbBool generateDefaultNormals(SoState * state,
00053                                         SoNormalBundle * bundle);
00054 
00055   enum Binding {
00056     OVERALL = 0,
00057     PER_LINE,
00058     PER_SEGMENT,
00059     PER_VERTEX
00060   };
00061 
00062   Binding findNormalBinding(SoState * const state) const;
00063   Binding findMaterialBinding(SoState * const state) const;
00064 };
00065 
00066 #endif // !COIN_SOLINESET_H

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