Introduction - If you have any usage issues, please Google them yourself
		 
Small interactive graphics system, prepared by the Turbo C2.0 achieved in computer graphics Polygon reduction  polygon rotation, translation, scaling  Bezier curves  B-spline curve  the mid-point circle  such algorithm. Rubber band and to achieve a straight line, rubber band rectangle drawing method, using the mouse with the user interaction is very easy to use. This is the Nanjing University of Aeronautics and Astronautics computer professional computer graphics course design work, his alma mater, the younger girl who might be able to work as a reference.