SoTriangleSet.h

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**=======================================================================*/
/*=======================================================================
** Author      : David Beilloin (Mar 2011)
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
#ifndef  _SO_TRIANGLE_SET_
#define  _SO_TRIANGLE_SET_
 
#include <Inventor/fields/SoSFInt32.h>
#include <Inventor/nodes/SoNonIndexedShape.h>
#include <Inventor/SbPImpl.h>
 
// This value, when used in the numTriangles field, means that the
// corresponding set should use the rest of the vertices
#define SO_TRIANGLE_SET_USE_REST_OF_VERTICES        (-1)
 
class SoNormalBundle;
class SoState;
 
SO_PIMPL_PUBLIC_DECLARATION(SoTriangleSet)
 
//@TOBEWRAPPED
class  SoTriangleSet : public SoNonIndexedShape
{
  SO_NODE_HEADER(SoTriangleSet);
  SO_PIMPL_PUBLIC_HEADER(SoTriangleSet)
 
public:
 
  SoSFInt32 numTriangles;
 
  SoTriangleSet();
 
private:
  // Implement actions
 
  virtual void GLRender( SoGLRenderAction* action );
 
  virtual void getPrimitiveCount( SoGetPrimitiveCountAction* action );
 
  virtual void generateDefaultNormals( SoState* state,
                                       const SbVec3f* coords,
                                       int numCoords,
                                       SoNormalBundle* nb,
                                       SbBool storeRef = FALSE );
 
  virtual void shouldGenerateTangents( SoGLRenderAction* /*action*/, const SoShapeStyleElement* /*shapeStyle*/ ) {}
 
private:
 
  static void initClass();
 
  static void exitClass();
 
  virtual int getNumVert( SoState* state = NULL );
 
  virtual int getNumPrim( SoState* state = NULL );
 
private:
 
  // This enum is used to indicate the current material or normal binding
  enum Binding {
    OVERALL,
    PER_FACE,
    PER_VERTEX
  };
 
  //Free memory
  virtual void exitRender( SoState* state, 
                           int stateFlag,
                           SoTextureCoordinateBundle* tcb,
                           SoTextureCoordinate3Bundle* tc3b);
 
  virtual void countPrim( SoState* state = NULL );
 
  // Generates triangles representing faces
  virtual void generatePrimitives( SoAction* action );
 
  // render function
  void doRendering( SoGLRenderAction* action, const SoShapeStyleElement* shapeStyle );
 
  // Overrides standard method to create an SoFaceDetail instance
  virtual SoDetail* createTriangleDetail( SoRayPickAction* action,
                                          const SoPrimitiveVertex* v1,
                                          const SoPrimitiveVertex* v2,
                                          const SoPrimitiveVertex* v3,
                                          SoPickedPoint* pp);
 
  ~SoTriangleSet();
 
private:
 
  // reset numTris to -1, to rechecks SO_USE_REST_OF_VERTICES usage when notified
  virtual void notify( SoNotList* list );
 
private:
 
  friend class SoVolumeTriangleSetDl;
};
 
#endif /* _SO_TRIANGLE_SET_ */