Publication Detail

Approximate conversion of rational splines.

Nicholas M. Patrikalakis
MITSG 89-10J

The exchange of data between different geometric modelling systems frequently requires approximate conversions of rational Bezier and B-spline curves and surfaces to lower degree integral B-spline representations. The objective of this paper is to present an algorithm to approximate nonuniform rational B-spline curves with nonuniform integral B-spline curves of lower degree. A global error bound which guarantees the precision of approximation at all points is derived.

type: Technical reports

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