struct CuttingTool {
	enum Shape {
		V = 0;
		U
	};
	
	Shape shape;
	int width;
	int depht;
	int length;
};

typedef std::pair<float, float> Vertex;
typedef std::pair<Vertex, Vertex> Cut;
typedef std::list<Cut> Pattern;

struct Polygon {
	CuttingTool tool;
	Pattern pattern;
};