SoIndexedShape.h

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/*=======================================================================
** Author      : Paul S. Strauss (MMM yyyy)
**=======================================================================*/
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**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
 
#ifndef  _SO_INDEXED_SHAPE_
#define  _SO_INDEXED_SHAPE_
 
#include <Inventor/fields/SoMFInt32.h>
#include <Inventor/nodes/SoVertexShape.h>
#include <Inventor/SbPImpl.h>
 
class SbVec2d;
 
SO_PIMPL_PUBLIC_DECLARATION(SoIndexedShape)
 
 
//
//  Class: SoIndexedShape
//
//  Abstract indexed shape node class. All nodes derived from this
//  (such as SoIndexedFaceSet and SoIndexedLineSet) are shapes
//  that are constructed from vertices defined by indexing into the
//  current coordinates. The coordinate indices are stored in the
//  coordIndex field, which is used by all subclasses.
//
//  One rule is used: all coordinate indices less than 0 may be used
//  for special purposes, such as to denote the end of a face or
//  polyline. This means that all indices < 0 can be ignored safely
//  when looking at vertices.
//
//  Depending on the current material, normal, tangent and texture coordinate
//  binding values, materials, normals, tangents and texture coordinates may be
//  accessed in order or may be indexed using the materialIndex,
//  normalIndex, tangentIndex and textureCoordIndex fields.
//
 
class  SoIndexedShape : public SoVertexShape
{
  SO_NODE_ABSTRACT_HEADER(SoIndexedShape);
  SO_PIMPL_PUBLIC_HEADER(SoIndexedShape)
 
public:
  SoMFInt32           coordIndex;
  SoMFInt32           materialIndex;
  SoMFInt32           normalIndex;
  SoMFInt32           tangentIndex;
  SoMFInt32           textureCoordIndex;
 
private:
  virtual void computeBBox(SoAction *action, SbBox3f &box, SbVec3f &center);
 
  virtual void computeBBox(SoAction *action, SbXfBox3d &box, SbVec3d &center);
  
  virtual void rayPick(SoRayPickAction *action);
 
private:
 
  static void         initClass();
  static void         exitClass();
 
  // Keep indices up to date if things change
  virtual void notify(SoNotList *list);
 
private:
  SoIndexedShape();
 
  virtual ~SoIndexedShape();
 
private:
 
  static bool s_evaluateIndexingGainFactor;
 
  void commonConstructor();
 
};
 
#endif /* _SO_INDEXED_SHAPE_ */