这个程序为图形的几何转换程序基本图形为一个已经定义的多边形，并且编写了一个编辑多边形的过程，在进行图形变换后，再次绘出变换后的图形时可以调用此过程，方便快捷。几何变换-This procedure Geometrical basic graphics conversion program has been defined as a polygon, and the preparation of a polygon editing process, making graphics transformed once again transformed the graphics drawn can call this process simple and convenient. Geometric transformation