8YU Xi-fa1, YI Su-jun2, SUN Huai-lin1 (1. College of Civil Science and Engineering, Yangzhou University, Yangzhou 225009 ,2. Mathematics and Information College, East China Institute University, Fuzhou 344000, China).A Study on Drawing the Shadow of a Curve Revolving Object under Commonly Used Ray[J].Computer Aided Drafting,Design and Manufacturing,2008,18(2):113-116.
