Inventor/nodes/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_ */

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Open Inventor Toolkit reference manual, generated on 15 Mar 2023
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