# SoAntiSquish.h

    00001 #ifndef COIN_SOANTISQUISH_H
    00002 #define COIN_SOANTISQUISH_H
    00003
    00004 /**************************************************************************\
    00005  *
    00006  *  This file is part of the Coin 3D visualization library.
    00007  *  Copyright (C) 1998-2003 by Systems in Motion.  All rights reserved.
    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 Systems in Motion about acquiring
    00018  *  a Coin Professional Edition License.
    00019  *
    00020  *  See <URL:http://www.coin3d.org> for  more information.
    00021  *
    00022  *  Systems in Motion, Teknobyen, Abels Gate 5, 7030 Trondheim, NORWAY.
    00023  *  <URL:http://www.sim.no>.
    00024  *
    00025 \**************************************************************************/
    00026
    00027 #include <Inventor/nodes/SoSubNode.h>
    00028 #include <Inventor/nodes/SoTransformation.h>
    00029 #include <Inventor/fields/SoSFEnum.h>
    00030 #include <Inventor/fields/SoSFBool.h>
    00031 #include <Inventor/SbMatrix.h>
    00032
    00033 class COIN_DLL_API SoAntiSquish : public SoTransformation {
    00034   typedef SoTransformation inherited;
    00035
    00036   SO_NODE_HEADER(SoAntiSquish);
    00037
    00038 public:
    00039   static void initClass(void);
    00040   SoAntiSquish(void);
    00041
    00042   enum Sizing {
    00043     X, Y, Z, AVERAGE_DIMENSION, BIGGEST_DIMENSION, SMALLEST_DIMENSION,
    00044     LONGEST_DIAGONAL
    00045   };
    00046
    00047   SoSFEnum sizing;
    00048   SoSFBool recalcAlways;
    00049
    00050   void recalc(void);
    00051   virtual void doAction(SoAction * action);
    00052
    00053 protected:
    00054   virtual ~SoAntiSquish();
    00055
    00056   virtual void callback(SoCallbackAction * action);
    00057   virtual void GLRender(SoGLRenderAction * action);
    00058   virtual void getBoundingBox(SoGetBoundingBoxAction * action);
    00059   virtual void getMatrix(SoGetMatrixAction * action);
    00060   virtual void pick(SoPickAction * action);
    00061
    00062   SbMatrix getUnsquishingMatrix(const SbMatrix & squishedmatrix,
    00063                                 const SbBool calcinverse,
    00064                                 SbMatrix & getinverse);
    00065 private:
    00066   SbMatrix unsquishedmatrix, inversematrix;
    00067   SbBool matrixvalid, inversevalid;
    00068 };
    00069
    00070 #endif // !COIN_SOANTISQUISH_H