SoIndexedPointSet.h

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/*=======================================================================
** Author      : F. DELLA MAESTRA (Sep 2005)
**=======================================================================*/
 
#ifndef  _SO_INDEXED_POINT_SET_
#define  _SO_INDEXED_POINT_SET_
 
#include <Inventor/nodes/SoIndexedShape.h>
#include <Inventor/SbPImpl.h>
 
SO_PIMPL_PUBLIC_DECLARATION(SoIndexedPointSet)
 
 
//
//  Class: SoIndexedPointSet
//
//  Indexed set of points. Each point consists of one
//  vertex, which is denoted by an integer index (from the
//  coordIndex field) into the current coordinate. Depending on the
//  current material and normal binding values, the materials and
//  normals for the vertices may be accessed in order or
//  indexed. If they are indexed, the materialIndex and normalIndex
//  fields are used. /*Texture coordinates may also be indexed, using
//  the textureCoordIndex field.*/
//
//#define SO_END_POINT_INDEX (-1)
 
 
class  SoIndexedPointSet : public SoIndexedShape
{
  SO_NODE_HEADER(SoIndexedPointSet);
  SO_PIMPL_PUBLIC_HEADER(SoIndexedPointSet)
 
public:
  // Inherits all fields
 
  SoIndexedPointSet();
 
private:
 
  virtual void GLRender( SoGLRenderAction* action );
 
  virtual void getBoundingBox( SoGetBoundingBoxAction* action );
 
  virtual void getPrimitiveCount( SoGetPrimitiveCountAction* action );
 
  // Computes bounding box
  virtual void computeBBox( SoAction* action, SbBox3f& box, SbVec3f& center );
 
private:
 
  static void initClass();
 
  static void exitClass();
 
  // return num points for test  
  virtual int getNumPrim( SoState* state = NULL );
 
private:
 
  // Generates points representing point set
  virtual void generatePrimitives( SoAction* action );
 
  // really do the rendering part
  virtual void doRendering( SoGLRenderAction* action, const SoShapeStyleElement* shapeStyle );
 
  virtual void callSetupIndices( SoState* state, const SoShapeStyleElement* shapeStyle, uint32_t useTexCoordsAnyway );
 
  // No normal generation
  virtual void shouldGenerateNormals( SoGLRenderAction* action, const SoShapeStyleElement* shapeStyle );
 
  // No tangent generation
  virtual void shouldGenerateTangents( SoGLRenderAction* /*action*/, const SoShapeStyleElement* /*shapeStyle*/ ) {}
 
  // check if glrender should be called
  virtual SbBool shouldGLRender( SoGLRenderAction* action, SbBool isPointsOrLines = FALSE );
 
  // says that rendering is PointOrLine
  virtual SbBool isRenderingPointsOrLines( SoGLRenderAction* action );
 
  // Overrides standard method to create an SoPointDetail instance
  virtual SoDetail* createPointDetail( SoRayPickAction* action,
                                       const SoPrimitiveVertex* v,
                                       SoPickedPoint* pp);
  
  virtual ~SoIndexedPointSet();
};
 
inline SbBool 
SoIndexedPointSet::isRenderingPointsOrLines( SoGLRenderAction* )
{
  return TRUE;
}
 
#endif /* _SO_INDEXED_POINT_SET_ */