00001 /*Copyright (c) 2010 Maxime Petitjean 00002 00003 Permission is hereby granted, free of charge, to any person obtaining a copy 00004 of this software and associated documentation files (the "Software"), to deal 00005 in the Software without restriction, including without limitation the rights 00006 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00007 copies of the Software, and to permit persons to whom the Software is 00008 furnished to do so, subject to the following conditions: 00009 00010 The above copyright notice and this permission notice shall be included in 00011 all copies or substantial portions of the Software. 00012 00013 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00014 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00015 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00016 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00017 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00018 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00019 THE SOFTWARE.*/ 00020 00021 #ifndef _MANDELBROT_H_ 00022 #define _MANDELBROT_H_ 00023 00024 #include "../sequence.h" 00025 00030 class Mandelbrot : public Sequence 00031 { 00032 private: 00033 Point m_constant_point; 00034 00035 public: 00036 Mandelbrot( const FractalParameters * _fractal_parameters ) 00037 : Sequence( _fractal_parameters ) 00038 { 00039 } 00040 00041 protected: 00042 virtual Point init( const Point& _init_point ) 00043 { 00044 m_constant_point = _init_point; 00045 return _init_point; 00046 } 00047 virtual Point next( const Point& _point ) 00048 { 00049 return Point( ( _point.x() * _point.x() - _point.y() * _point.y() ) + m_constant_point.x(), 00050 ( _point.y() * _point.x() * 2.0 ) + m_constant_point.y() ); 00051 } 00052 virtual bool end( const Point& _point ) 00053 { 00054 return _point.x() * _point.x() + _point.y() * _point.y() > 4.0; 00055 } 00056 }; 00057 00058 #endif //_MANDELBROT_H_