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32 
33 #ifndef COIN_SOVRMLELEVATIONGRID_H
34 #define COIN_SOVRMLELEVATIONGRID_H
35 
36 #include <Inventor/nodes/SoSubNode.h>
37 #include <Inventor/VRMLnodes/SoVRMLGeometry.h>
38 #include <Inventor/fields/SoSFBool.h>
39 #include <Inventor/fields/SoSFFloat.h>
40 #include <Inventor/fields/SoSFInt32.h>
41 #include <Inventor/fields/SoSFBool.h>
42 #include <Inventor/fields/SoSFFloat.h>
43 #include <Inventor/fields/SoMFFloat.h>
44 #include <Inventor/fields/SoSFNode.h>
45 
46 class SoChildList;
47 
48 class SoVRMLElevationGridP;
49 
50 class COIN_DLL_API SoVRMLElevationGrid : public SoVRMLGeometry
51 {
52   typedef SoVRMLGeometry inherited;
53   SO_NODE_HEADER(SoVRMLElevationGrid);
54 
55 public:
56   static void initClass(void);
57   SoVRMLElevationGrid(void);
58 
59   SoSFBool ccw;
60   SoSFBool solid;
61   SoSFFloat creaseAngle;
62   SoSFInt32 zDimension;
63   SoSFInt32 xDimension;
64   SoSFFloat zSpacing;
65   SoSFFloat xSpacing;
66   SoMFFloat height;
67   SoSFNode texCoord;
68   SoSFNode normal;
69   SoSFNode color;
70   SoSFBool colorPerVertex;
71   SoSFBool normalPerVertex;
72 
73   virtual void GLRender(SoGLRenderAction * action);
74   virtual void rayPick(SoRayPickAction * action);
75   virtual void getPrimitiveCount(SoGetPrimitiveCountAction * action);
76 
77 protected:
78   virtual ~SoVRMLElevationGrid(void);
79 
80   virtual void notify(SoNotList * list);
81   virtual void generatePrimitives( SoAction * action );
82   virtual void computeBBox(SoAction * action, SbBox3f & bbox,
83                            SbVec3f & center);
84 
85 private:
86   friend class SoVRMLElevationGridP;
87 
88   enum Binding {
89     OVERALL,
90     PER_QUAD,
91     PER_VERTEX
92   };
93 
94   Binding findMaterialBinding(void) const;
95   Binding findNormalBinding(void) const;
96 
97   const SbVec3f * updateNormalCache(Binding & nbind);
98 
99   SoVRMLElevationGridP * pimpl;
100 
101 }; // class SoVRMLElevationGrid
102 
103 #endif // ! COIN_SOVRMLELEVATIONGRID_H
104