SbSpherePlaneProjector.h

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**=======================================================================*/
/*=======================================================================
** Author      : Howard Look (MMM yyyy)
** Modified by : Paul Isaacs (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 _SB_SPHERE_PLANE_PROJECTOR_
#define _SB_SPHERE_PLANE_PROJECTOR_
 
#include <Inventor/projectors/SbSphereSectionProjector.h>
 
class  SbSpherePlaneProjector : public SbSphereSectionProjector
{
 public:
  SbSpherePlaneProjector(float edgeTol = 0.9f, SbBool orientToEye = TRUE);
 
  SbSpherePlaneProjector( const  SbSphere &sph,
                          float  edgeTol = 0.9f,
                          SbBool orientToEye = TRUE);
 
  ~SbSpherePlaneProjector() {}
 
  virtual SbProjector *    copy() const;
  virtual SbVec3f     project(const SbVec2f &point);
  virtual SbVec3f intersect( const SbLine &line );
  virtual SbRotation  getRotation(const SbVec3f &point1,
                                  const SbVec3f &point2);
                            
 private:
  SbRotation          getRotation(const SbVec3f &point1, SbBool tol1, 
                                  const SbVec3f &point2, SbBool tol2);
 
  // Apply the projector using the given line in working space.
  // Encapsulates code common to project and intersect methods.
  // New for v3.0
  virtual SbVec3f intersectWorkingLine( const SbLine &line );
 
};
 
#endif /* _SB_SPHERE_PLANE_PROJECTOR_ */