| Home > Publications > Reports > Numerical Analysis and Applied Mathematics (TW) |
TW 297
J. Windmolders and P. Dierckx
From PS-splines to NURPS
Abstract
A normalized B--spline representation for Powell--Sabin (PS) spline surfaces is extended to piecewise rational surfaces (NURPS). We investigate the adaption of existing algorithms operating on B--splines to this more general case, the influence of weights and their geometrical interpretation, the possibility to represent planar sections, and the conversion from rational B\'ezier to NURPS surfaces.
report.pdf / mailto: J. Windmolders