9Barnhill R E,Birkhoff G,Gordon W J.Smooth interpolation in triangles theory[J].Journal of Approximation Theory,1973,8(2):114.
10Hoope H,Derose T,Duchamp T,et al.Surface reconstruction from unorganized points[C]//Proceedings of the 19th Annual Conference on Computer Graphics and Interactive Techniques,Chicago,USA.New York:ACM Press,1992:71-78.