SoViewVolumeElement.h

/*=======================================================================
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**=======================================================================*/
/*=======================================================================
** Author      : Paul S. Strauss (MMM yyyy)
**=======================================================================*/
/*=======================================================================
 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.),            ***
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**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
 
#ifndef  _SO_VIEW_VOLUME_ELEMENT
#define  _SO_VIEW_VOLUME_ELEMENT
 
#include <Inventor/SbLinear.h>
#include <Inventor/elements/SoReplacedElement.h>
 
SoEXTENDER_Documented class  SoViewVolumeElement : public SoReplacedElement {
 
  SO_ELEMENT_HEADER(SoViewVolumeElement);
 
 public:
  static void set(SoState *state, SoNode *node, const SbViewVolume &viewVolume);
 
  static const SbViewVolume & get(SoState *state);
 
  static SbBool isSet(SoState *state);
 
  virtual void print(FILE *fp) const;
 
private:
 
  virtual void init(SoState *state);
 
 private:
  static SbVec3f getEyePosObjectSpace(SoState* state);
  static SbVec3f getEyePosObjectSpace(const SbMatrix& modelViewMatrix);
 
  // Initializes the SoViewVolumeElement class
  static void         initClass();
  static void         exitClass();
 
 private:
  SbBool              volumeWasSet;
  SbViewVolume        viewVolume;
 
  virtual ~SoViewVolumeElement();
};
 
#endif /* _SO_VIEW_VOLUME_ELEMENT */