SoVRMLBillboard.h

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#ifndef COIN_SOVRMLBILLBOARD_H
#define COIN_SOVRMLBILLBOARD_H

#include <Inventor/VRMLnodes/SoVRMLParent.h>
#include <Inventor/nodes/SoSubNode.h>
#include <Inventor/fields/SoSFVec3f.h>

class SbRotation;
class SoState;
class SbViewVolume;
class SbMatrix;

class COIN_DLL_API SoVRMLBillboard : public SoVRMLParent
{
  typedef SoVRMLParent inherited;
  SO_NODE_HEADER(SoVRMLBillboard);

public:
  static void initClass(void);
  SoVRMLBillboard(void);
  SoVRMLBillboard( int numchildren );

  SoSFVec3f axisOfRotation;
  SoSFVec3f bboxCenter;
  SoSFVec3f bboxSize;

  virtual void doAction(SoAction * action);
  virtual void callback(SoCallbackAction * action);
  virtual void GLRender(SoGLRenderAction * action);
  virtual void getBoundingBox(SoGetBoundingBoxAction * action);
  virtual void getMatrix(SoGetMatrixAction * action);
  virtual void pick(SoPickAction * action);
  virtual void search(SoSearchAction * action);

  virtual void GLRenderBelowPath(SoGLRenderAction * action);
  virtual void GLRenderInPath(SoGLRenderAction * action);
  virtual void GLRenderOffPath(SoGLRenderAction * action);

  virtual void notify(SoNotList * list);

protected:
  virtual ~SoVRMLBillboard();

private:
  SbRotation computeRotation(SbMatrix const & invMM, SbViewVolume const & vv) const;
  void performRotation(SoState * state) const;
  class SoVRMLBillboardP * pimpl;
};

#endif // ! COIN_SOVRMLBILLBOARD_H