00001 #ifndef __Vector2_H__
00002 #define __Vector2_H__
00003
00004 #include <cmath>
00005
00006 namespace EdgeDetection
00007 {
00008
00009 class Vector2
00010 {
00011 private: double x;
00012 private: double y;
00013
00014 public: double GetX() { return x; }
00015 public: double GetY() { return y; }
00016 public: double GetLength() { return sqrt(x * x + y * y); }
00017
00018 public: Vector2()
00019 {
00020 this->x = 0;
00021 this->y = 0;
00022 }
00023 public: Vector2(double angle)
00024 {
00025 this->x = cos(angle);
00026 this->y = sin(angle);
00027 }
00028 public: Vector2(double x, double y)
00029 {
00030 this->x = x;
00031 this->y = y;
00032 }
00033 public: ~Vector2() { }
00034
00035 public: static Vector2 Add(Vector2 vector1, Vector2 vector2) { return Vector2(vector1.x + vector2.x, vector1.y + vector2.y); }
00036 public: static Vector2 Subtract(Vector2 vector1, Vector2 vector2) { return Vector2(vector1.x - vector2.x, vector1.y - vector2.y); }
00037 public: static Vector2 Multiply(Vector2 vector, double factor) { return Vector2(vector.x * factor, vector.y * factor); }
00038 public: static Vector2 Multiply(double factor, Vector2 vector) { return Vector2(factor * vector.x, factor * vector.y); }
00039 public: static Vector2 Negate(Vector2 vector) { return Multiply(vector, -1); }
00040 public: static bool Equals(Vector2 vector1, Vector2 vector2) { return vector1.x == vector2.x && vector1.y == vector2.y; }
00041 };
00042 };
00043
00044 #endif
