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bresenham.h

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00001 /***************************************************************************************************/ 00002 /***************************************************************************************************/ 00008 /***************************************************************************************************/ 00009 /***************************************************************************************************/ 00010 00011 00012 #ifndef BRESENHAM_H 00013 #define BRESENHAM_H 00014 00015 /*------------------------------------ Prototypes ---------------------------------------------*/ 00016 class cIncremental_Bresenham; 00017 00018 00019 /*------------------------------------ Includes ---------------------------------------------*/ 00020 #include "geo_utils.h" 00021 00022 00023 /*------------------------------------- Classes ---------------------------------------------*/ 00024 00025 00026 00027 /*************************************************************************************************/ 00029 00031 class cIncremental_Bresenham 00032 { 00033 public: 00035 00037 cIncremental_Bresenham() 00038 { 00039 A=cPoint2D(0,0); 00040 B=cPoint2D(0,0); 00041 }; 00042 00044 void Reset( cPoint2D & start, cPoint2D & goal ); 00045 00047 00051 void Parcourir_Et_Executer( cPoint2D & start, cPoint2D & goal , bool (*Call_Back)(int x , int y) ); 00052 00054 00056 bool Step(cPoint2D & position ); 00057 00059 00063 bool Step(int &length , cPoint2D & position ); 00064 00065 00066 private: 00067 00068 cPoint2D A; 00069 cPoint2D B; 00070 00071 int sdx,sdy,dx,dy,dx2,dy2,error,x_inc,y_inc; 00072 int Px,Py; 00073 }; 00074 00075 00076 #endif

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