ClippingNode.hh

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\*===========================================================================*/




//=============================================================================
//
//  CLASS ClippingNode
//
//=============================================================================


#ifndef ACG_CLIPPING_NODE_HH
#define ACG_CLIPPING_NODE_HH


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

#include "BaseNode.hh"
#include <string>
#include <fstream>

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

namespace ACG {
namespace SceneGraph {
  

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

  
class ACGDLLEXPORT ClippingNode : public BaseNode
{
public:

  ClippingNode( BaseNode*           _parent = 0,
                const std::string&  _name = "<ClippingNode>" )
    : BaseNode(_parent, _name),
      slice_width_(0),
      offset_(0)
  {
    plane0_[0] = 0.0;
    plane0_[1] = 0.0;
    plane0_[2] = 0.0;
    plane0_[3] = 0.0;

    plane1_[0] = 0.0;
    plane1_[1] = 0.0;
    plane1_[2] = 0.0;
    plane1_[3] = 0.0;

    offset_plane0_[0] = 0.0;
    offset_plane0_[1] = 0.0;
    offset_plane0_[2] = 0.0;
    offset_plane0_[3] = 0.0;

    offset_plane1_[0] = 0.0;
    offset_plane1_[1] = 0.0;
    offset_plane1_[2] = 0.0;
    offset_plane1_[3] = 0.0;
  }


  virtual ~ClippingNode() {}

  ACG_CLASSNAME(ClippingNode);

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

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

  void set_plane(const Vec3f& _position, const Vec3f& _normal, float _eps=0.0);

  const Vec3f& position() const { return position_; }

  const Vec3f& normal() const { return normal_; }

  float slice_width() const { return slice_width_; }

  void set_offset(float _dist);

  
private:

  Vec3f     position_, normal_;
  GLdouble  plane0_[4], plane1_[4], offset_plane0_[4], offset_plane1_[4];
  float     slice_width_, offset_;
};


//=============================================================================
} // namespace SceneGraph
} // namespace ACG
//=============================================================================
#endif // ACG_CLIPPING_NODE_HH defined
//=============================================================================