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SoAntiSquish.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_SOANTISQUISH_H
00021 #define COIN_SOANTISQUISH_H
00022 
00023 #include <Inventor/nodes/SoSubNode.h>
00024 #include <Inventor/nodes/SoTransformation.h>
00025 #include <Inventor/fields/SoSFEnum.h>
00026 #include <Inventor/fields/SoSFBool.h>
00027 #include <Inventor/SbMatrix.h>
00028 
00029 
00030 class COIN_DLL_API SoAntiSquish : public SoTransformation {
00031   typedef SoTransformation inherited;
00032 
00033   SO_NODE_HEADER(SoAntiSquish);
00034 
00035 public:
00036   static void initClass(void);
00037   SoAntiSquish(void);
00038 
00039   enum Sizing {
00040     X, Y, Z, AVERAGE_DIMENSION, BIGGEST_DIMENSION, SMALLEST_DIMENSION,
00041     LONGEST_DIAGONAL
00042   };
00043 
00044   SoSFEnum sizing;
00045   SoSFBool recalcAlways;
00046 
00047   void recalc(void);
00048   virtual void doAction(SoAction * action);
00049 
00050 protected:
00051   virtual ~SoAntiSquish();
00052 
00053   virtual void callback(SoCallbackAction * action);
00054   virtual void GLRender(SoGLRenderAction * action);
00055   virtual void getBoundingBox(SoGetBoundingBoxAction * action);
00056   virtual void getMatrix(SoGetMatrixAction * action);
00057   virtual void pick(SoPickAction * action);
00058 
00059   SbMatrix getUnsquishingMatrix(const SbMatrix & squishedmatrix,
00060                                 const SbBool calcinverse,
00061                                 SbMatrix & getinverse);
00062 private:
00063   SbMatrix unsquishedmatrix, inversematrix;
00064   SbBool matrixvalid, inversevalid;
00065 };
00066 
00067 #endif // !COIN_SOANTISQUISH_H

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