Rectangle.h

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/* $Id:$ */

#ifndef __RECTANGLE_H
#define __RECTANGLE_H

#include <esg/geometry/Polygon.h>

namespace esg {

class Rectangle : public Polygon {
protected:
        double  _width;
        double  _height;
        Vector3 _xDir;
        Vector3 _yDir;
        
protected:
        virtual void _duplicate_attributes (const Geometry&);
        virtual void _rotateX   (float /* angle */);
    virtual void _rotateY   (float /* angle */);
        virtual void _rotateZ   (float /* angle */);
        virtual void _rotate    (float /* angle */, const Vector3& /* axis */);
        virtual void _rotate    (const Matrix3&);
        virtual void _translate (float /* x */, float /* y */, float /* z */);
        virtual void _transform (const Matrix4&);
        virtual void _scale     (float);
    
public:
        Rectangle (const Vector3& corner,
                   const Vector3& u,
                   const Vector3& v,
                   const Vector2  uva[4],
                   bool           oneside);

        Rectangle (const Vector3& corner,
                   const Vector3& u,
                   const Vector3& v,
                   const Vector2  uva[4],
                   bool           oneside,
                   const Vector3& normal);

        virtual void randomSample (int mask, PointEnv& pe, double* pdf);
};
    
}; // namespace

#endif // __RECTANGLE_H

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