1 /*
2 * Class modelling a 3D perspective
3 *
4 * Authors:
5 * Maximilian Albert <Anhalter42@gmx.de>
6 *
7 * Copyright (C) 2007 authors
8 *
9 * Released under GNU GPL, read the file 'COPYING' for more information
10 */
12 #ifndef SEEN_PERSPECTIVE3D_H
13 #define SEEN_PERSPECTIVE3D_H
15 #include "vanishing-point.h"
17 class SP3DBox;
19 namespace Box3D {
21 class PerspectiveLine;
23 class Perspective3D {
24 public:
25 Perspective3D(VanishingPoint const &pt_x, VanishingPoint const &pt_y, VanishingPoint const &pt_z);
26 ~Perspective3D();
28 VanishingPoint *get_vanishing_point (Box3D::Axis const dir);
29 void set_vanishing_point (Box3D::Axis const dir, VanishingPoint const &pt);
30 void add_box (SP3DBox *box);
31 void remove_box (const SP3DBox *box);
32 bool has_box (const SP3DBox *box);
34 static Perspective3D * current_perspective; // should current_perspective be moved to desktop.h?
36 SPDesktop * desktop; // we need to store the perspective's desktop to be able to access it in the destructor
38 private:
39 VanishingPoint vp_x;
40 VanishingPoint vp_y;
41 VanishingPoint vp_z;
42 GSList * boxes; // holds a list of boxes sharing this specific perspective
43 };
45 Perspective3D * get_persp_of_box (const SP3DBox *box);
47 NR::Point perspective_intersection (NR::Point pt1, Box3D::Axis dir1, NR::Point pt2, Box3D::Axis dir2, Perspective3D *persp);
48 NR::Point perspective_line_snap (NR::Point pt, Box3D::Axis dir, NR::Point ext_pt, Perspective3D *persp);
50 } // namespace Box3D
53 /** A function to print out the VanishingPoint (prints the coordinates) **/
54 /***
55 inline std::ostream &operator<< (std::ostream &out_file, const VanishingPoint &vp) {
56 out_file << vp;
57 return out_file;
58 }
59 ***/
62 #endif /* !SEEN_PERSPECTIVE3D_H */
64 /*
65 Local Variables:
66 mode:c++
67 c-file-style:"stroustrup"
68 c-file-offsets:((innamespace . 0)(inline-open . 0))
69 indent-tabs-mode:nil
70 fill-column:99
71 End:
72 */
73 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :