/*
 * Class modelling a 3D perspective
 *
 * Authors:
 *   Maximilian Albert <Anhalter42@gmx.de>
 *
 * Copyright (C) 2007 authors
 *
 * Released under GNU GPL, read the file 'COPYING' for more information
 */

#ifndef SEEN_PERSPECTIVE3D_H
#define SEEN_PERSPECTIVE3D_H

#include "vanishing-point.h"

namespace Box3D {

NR::Point perspective_intersection (NR::Point pt1, Box3D::Axis dir1, NR::Point pt2, Box3D::Axis dir2);
NR::Point perspective_line_snap (NR::Point pt, Box3D::Axis dir, NR::Point ext_pt);

class PerspectiveLine;

class Perspective3D {
public:
    Perspective3D(VanishingPoint const &pt_x, VanishingPoint const &pt_y, VanishingPoint const &pt_z);

    VanishingPoint *get_vanishing_point (Box3D::Axis const dir);
    void set_vanishing_point (Box3D::Axis const dir, VanishingPoint const &pt);

private:
    VanishingPoint vp_x;
    VanishingPoint vp_y;
    VanishingPoint vp_z;
};


} // namespace Box3D


/** A function to print out the VanishingPoint (prints the coordinates) **/
/***
inline std::ostream &operator<< (std::ostream &out_file, const VanishingPoint &vp) {
    out_file << vp;
    return out_file;
}
***/


#endif /* !SEEN_PERSPECTIVE3D_H */

/*
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*/
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