http://paulbourke.net/miscellaneous/interpolation/
http://fivedots.coe.psu.ac.th/Software.coe/Java%20Games/Java3D/Muscle3D/Hermite/Hermite%20Curve%20Interpolation.htm
http://www.cs.helsinki.fi/group/goa/mallinnus/curves/curves.html
原文：http://www.cnblogs.com/lilei9110/p/3967848.html