TransformNode.hh

/*===========================================================================*\
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 *                              OpenFlipper                                  *
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/*===========================================================================*\
 *                                                                           *
 *   $Revision: 8548 $                                                       *
 *   $Author: moebius $                                                      *
 *   $Date: 2010-02-12 14:40:13 +0100 (Fr, 12. Feb 2010) $                   *
 *                                                                           *
\*===========================================================================*/




//=============================================================================
//
//  CLASS TransformNode
//
//=============================================================================

#ifndef ACG_TRANSFORM_NODE_HH
#define ACG_TRANSFORM_NODE_HH


//== INCLUDES =================================================================


#include "BaseNode.hh"
#include "../Math/GLMatrixT.hh"
#include "../Math/VectorT.hh"
#include "../Math/QuaternionT.hh"


//== NAMESPACES  ==============================================================


namespace ACG {
namespace SceneGraph {


//== CLASS DEFINITION =========================================================


class ACGDLLEXPORT TransformNode : public BaseNode
{
public:
  
  
  TransformNode( BaseNode* _parent=0,
                 const std::string& _name="<TransformNode>" );

  virtual ~TransformNode(){}

  ACG_CLASSNAME(TransformNode);

    
  void enter(GLState& _state, DrawModes::DrawMode _drawmode);
  void leave(GLState& _state, DrawModes::DrawMode _drawmode);



  void set_center(const Vec3d& _c) { center_ = _c; }
  const Vec3d& center() const { return center_; }

  
  void loadIdentity();
  virtual void setIdentity();



  //--- set values ---


  void translate(const Vec3d& _v);

  void rotate(double _angle, const Vec3d& _axis);

  void scale(double _s) { scale(Vec3d(_s, _s, _s)); }

  void scale(const Vec3d& _s);

  void scale(const GLMatrixd& _m);


  //--- get values ---


  const GLMatrixd& matrix() const { return matrix_; }
  const GLMatrixd& inverse_matrix() const { return inverse_matrix_; }

  void rotation(Vec3d& _axis, double& _angle) const { 
    quaternion_.axis_angle(_axis, _angle);
    _angle *= 180.0/M_PI;
  }
  const GLMatrixd& rotation() const { 
    return rotation_matrix_; 
  }
  const GLMatrixd& inverse_rotation() const { 
    return inverse_rotation_matrix_; 
  }


  const Vec3d& translation() const { return translation_; }

  const GLMatrixd& scale() const { 
    return scale_matrix_; 
  }
  const GLMatrixd& inverse_scale() const { 
    return inverse_scale_matrix_; 
  }

  bool apply_transformation() { return applyTransformation_; }

  void apply_transformation(bool _applyTransformation) { applyTransformation_ = _applyTransformation; }

  
private:

  void updateMatrix();
    

  // ELEMENTS
  GLMatrixd         matrix_, inverse_matrix_;
  GLMatrixd         rotation_matrix_, inverse_rotation_matrix_, scale_matrix_, inverse_scale_matrix_;
  Vec3d             center_;
  Vec3d             translation_;
  Quaterniond       quaternion_;


  bool applyTransformation_;
};


//=============================================================================
} // namespace SceneGraph
} // namespace ACG
//=============================================================================
#endif // ACG_TRANSFORM_NODE_HH
//=============================================================================