Catmull-Rom曲線をBezier曲線に変換する http://defghi1977-onblog.blogspot.jp/2014/09/catmull-rombezier.htmlB-spline Curves: Knot Insertion http://www.cs.mtu.edu/~shene/COURSES/cs3621/NOTES/spline/B-spline/single-insertion.htmlスプライン曲線…