1 #ifndef COIN_SOANTISQUISH_H
2 #define COIN_SOANTISQUISH_H
3 
4 /**************************************************************************\
5  * Copyright (c) Kongsberg Oil & Gas Technologies AS
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34 \**************************************************************************/
35 
36 #include <Inventor/nodes/SoSubNode.h>
37 #include <Inventor/nodes/SoTransformation.h>
38 #include <Inventor/fields/SoSFEnum.h>
39 #include <Inventor/fields/SoSFBool.h>
40 #include <Inventor/SbMatrix.h>
41 
42 class COIN_DLL_API SoAntiSquish : public SoTransformation {
43   typedef SoTransformation inherited;
44 
45   SO_NODE_HEADER(SoAntiSquish);
46 
47 public:
48   static void initClass(void);
49   SoAntiSquish(void);
50 
51   enum Sizing {
52     X, Y, Z, AVERAGE_DIMENSION, BIGGEST_DIMENSION, SMALLEST_DIMENSION,
53     LONGEST_DIAGONAL
54   };
55 
56   SoSFEnum sizing;
57   SoSFBool recalcAlways;
58 
59   void recalc(void);
60   virtual void doAction(SoAction * action);
61 
62 protected:
63   virtual ~SoAntiSquish();
64 
65   virtual void callback(SoCallbackAction * action);
66   virtual void GLRender(SoGLRenderAction * action);
67   virtual void getBoundingBox(SoGetBoundingBoxAction * action);
68   virtual void getMatrix(SoGetMatrixAction * action);
69   virtual void pick(SoPickAction * action);
70 
71   SbMatrix getUnsquishingMatrix(const SbMatrix & squishedmatrix,
72                                 const SbBool calcinverse,
73                                 SbMatrix & getinverse);
74 private:
75   SbMatrix unsquishedmatrix, inversematrix;
76   SbBool matrixvalid, inversevalid;
77 };
78 
79 #endif // !COIN_SOANTISQUISH_H
80