SbProjection.h

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**=======================================================================*/
/*=======================================================================
** Author      : G.TALLEC (May 2007)
**=======================================================================*/
 
#ifndef _SB_PROJECTION_
#define _SB_PROJECTION_
 
#include <Inventor/SbLinear.h>
#include <Inventor/SbString.h> 
 
#include <Inventor/STL/vector> 
 
#if defined(_WIN32)
#pragma warning( push )
#pragma warning( disable: 4251 ) // 'identifier' : class 'type' needs to have dll-interface to be used by clients of class 'type2'
#endif
 
#define NUM_MAX_PARAMS 256
#define MAX_PARAM_LENGTH 256
 
class SoProjection;
 
class  SbProjection
{
 
public:
 
  SbProjection();
 
  SbProjection(SoProjection *node);
 
  SbProjection(const SbProjection &proj);
 
  virtual ~SbProjection();
 
  virtual void init(){}
 
  virtual void exit(){}
 
  virtual void inverse(SbVec3f &point);
 
  virtual bool getProjectedBoundingBox(SbBox3f& bbox);
 
  void project(SbVec3f &point);
 
  void project( int numPoints, float *points);
 
  void project(int32_t numCoords, const SbVec3f *coords, SbVec3f *projectedCoords);
 
  inline SoProjection *getProjectionNode() const
  {return m_projection;}
 
  virtual void setParameter( int parameterId, const SbString &parameterString );
 
  virtual void setParameter( int parameterId, const float &parameterFloat );
 
  void setNumStringParameters( int numParameters );
 
  void setNumFloatParameters( int numParameters );
 
  int getNumStringParameters() const;
 
  int getNumFloatParameters() const;
 
  SbBool getParameter( int pos, SbString& parameter ) const;
 
  SbBool getParameter( int pos, float& parameter ) const;
 
SoEXTENDER_Documented private:
  virtual void apply(SbVec3f &point);
 
  virtual void applyPreProjection( SbVec3f &point );
 
  virtual void applyPostProjection( SbVec3f &point );
 
private:
 
  virtual void internalSetParameter( int parameterId, const SbString &parameterString, SbBool notifyNode = TRUE, SbBool callInit = TRUE);
 
  virtual void internalSetParameter( int parameterId, const float &parameterString, SbBool notifyNode = TRUE, SbBool callInit = TRUE);
 
  virtual void internalSetParameterIn( int parameterId, const SbString &parameterString, SbBool notifyNode = TRUE, SbBool callInit = TRUE);
 
  //copy the parameters to the projection node.
  void copyParams();
 
private:
 
  //initialisation of parameters.
  void initParameters();
 
  //synchronization with node.
  void afterSettingParameters( SbBool notifyNode, SbBool callInit );
 
  //string parameters list.
  char *m_stringParameters[NUM_MAX_PARAMS];
 
  //number of used string params.
  int m_numStringParams;
 
  //string parameters list.
  char *m_stringParametersIn[NUM_MAX_PARAMS];
 
  //number of used string params.
  int m_numStringParamsIn;
 
  //Float parameters.
  std::vector< float > m_floatParameters;
 
  //Apply matrix before projecting.
  void applyMatrix(SbVec3f &point);
 
  static const double deg2rad;
  static const double rad2deg;
 
private:
  SoProjection *m_projection;
};
 
 
inline void SbProjection::apply(SbVec3f &)
{}
 
inline void SbProjection::inverse(SbVec3f &)
{}
 
inline void SbProjection::applyPreProjection( SbVec3f &)
{}
 
inline void SbProjection::applyPostProjection( SbVec3f &)
{}
 
inline bool SbProjection::getProjectedBoundingBox(SbBox3f& ) 
{ return false; }
 
#if defined(_WIN32)
#pragma warning( pop )
#endif
 
#endif /* _SB_PROJECTION_ */