From: Prashant Saxena <animator333@ya...>  20081208 17:27:47

Thanks, Yes, after explicitly specifying "knot" attribute the curve is drawn properly. Could you please tell me how to calculate knots using degree and number of points? Prashant Your raw code specified a Nurbs curve of order 3 (so polynomial degree 2, a quadratic curve), and set 5 control points. Since the 'knot' attribute was not specified, I assume you relied on the default. Does the code get the behavior you expect if you explicitly specify a "knot" attribute ? ( for example: knot = [0.0,0.0,0.0, 0.33, 0.67, 1.0, 1.0, 1.0] # note: length  8 list ) Vince Marchetti Download prohibited? No problem. CHAT from any browser, without download. Go to http://in.webmessenger.yahoo.com/ 