Inventor/projection/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_ */

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Open Inventor Toolkit reference manual, generated on 4 Sep 2023
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