struct Point3f
{
	float x;
	float y;
	float z;

	void init(int x, int y, int z)
	{
		this->x=x;
		this->y=y;
		this->z=z;
	}
};

#define PI    ((FLOAT)  3.141592654f)
#define Radian( degree ) ((degree) * (PI / 180.0f))