#ifndef COIN_SBPLANE_H
#define COIN_SBPLANE_H

/**************************************************************************\
 * Copyright (c) Kongsberg Oil & Gas Technologies AS
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 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
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 * this software without specific prior written permission.
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\**************************************************************************/

#include <stdio.h>

#include <Inventor/SbVec3f.h>

class SbLine;
class SbMatrix;

class COIN_DLL_API SbPlane {
public:
  SbPlane(void);
  SbPlane(const SbVec3f& normal, const float D);
  SbPlane(const SbVec3f& p0, const SbVec3f& p1, const SbVec3f& p2);
  SbPlane(const SbVec3f& normal, const SbVec3f& point);

  void offset(const float d);
  SbBool intersect(const SbLine& l, SbVec3f& intersection) const;
  void transform(const SbMatrix& matrix);
  SbBool isInHalfSpace(const SbVec3f& point) const;
  float getDistance(const SbVec3f &point) const;
  const SbVec3f& getNormal(void) const;
  float getDistanceFromOrigin(void) const;
  friend COIN_DLL_API int operator ==(const SbPlane& p1, const SbPlane& p2);
  friend COIN_DLL_API int operator !=(const SbPlane& p1, const SbPlane& p2);

  void print(FILE * file) const;

  SbBool intersect(const SbPlane & pl, SbLine & line) const;

private:
  SbVec3f normal;
  float distance;
};

COIN_DLL_API int operator ==(const SbPlane& p1, const SbPlane& p2);
COIN_DLL_API int operator !=(const SbPlane& p1, const SbPlane& p2);

#endif // !COIN_SBPLANE_H
