| | This package provides an implementation of algorithms to do the conversion between equivalent geometric entities from package Geom2d. It gives the possibility : . to obtain the B-spline representation of bounded curves. . to split a B-spline curve into several B-spline curves with some constraints of continuity, . to convert a B-spline curve into several Bezier curves or surfaces. All the geometric entities used in this package are bounded. References : . Generating the Bezier Points of B-spline curves and surfaces (Wolfgang Bohm) CAGD volume 13 number 6 november 1981 . On NURBS: A Survey (Leslie Piegl) IEEE Computer Graphics and Application January 1991 . Curve and surface construction using rational B-splines (Leslie Piegl and Wayne Tiller) CAD Volume 19 number 9 november 1987 . A survey of curve and surface methods in CAGD (Wolfgang BOHM) CAGD 1 1984. More...
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