1 //----------------------------------------------------------------------------
2 // Anti-Grain Geometry (AGG) - Version 2.5
3 // A high quality rendering engine for C++
4 // Copyright (C) 2002-2006 Maxim Shemanarev
5 // Contact: mcseem@antigrain.com
6 //          mcseemagg@yahoo.com
7 //          http://antigrain.com
8 //
9 // AGG is free software; you can redistribute it and/or
10 // modify it under the terms of the GNU General Public License
11 // as published by the Free Software Foundation; either version 2
12 // of the License, or (at your option) any later version.
13 //
14 // AGG is distributed in the hope that it will be useful,
15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 // GNU General Public License for more details.
18 //
19 // You should have received a copy of the GNU General Public License
20 // along with AGG; if not, write to the Free Software
21 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
22 // MA 02110-1301, USA.
23 //----------------------------------------------------------------------------
24 
25 #ifndef AGG_WARP_MAGNIFIER_INCLUDED
26 #define AGG_WARP_MAGNIFIER_INCLUDED
27 
28 
29 namespace agg
30 {
31 
32     //----------------------------------------------------trans_warp_magnifier
33     //
34     // See Inmplementation agg_trans_warp_magnifier.cpp
35     //
36     class trans_warp_magnifier
37     {
38     public:
trans_warp_magnifier()39         trans_warp_magnifier() : m_xc(0.0), m_yc(0.0), m_magn(1.0), m_radius(1.0) {}
40 
center(double x,double y)41         void center(double x, double y) { m_xc = x; m_yc = y; }
magnification(double m)42         void magnification(double m)    { m_magn = m;         }
radius(double r)43         void radius(double r)           { m_radius = r;       }
44 
xc()45         double xc()            const { return m_xc; }
yc()46         double yc()            const { return m_yc; }
magnification()47         double magnification() const { return m_magn;   }
radius()48         double radius()        const { return m_radius; }
49 
50         void transform(double* x, double* y) const;
51         void inverse_transform(double* x, double* y) const;
52 
53     private:
54         double m_xc;
55         double m_yc;
56         double m_magn;
57         double m_radius;
58     };
59 
60 
61 }
62 
63 
64 #endif
65 
66