Elsevier

Computer-Aided Design

Volume 23, Issue 7, September 1991, Pages 484-491
Computer-Aided Design

Curvature-continuous extensions for rational B-spline curves and surfaces

https://doi.org/10.1016/0010-4485(91)90046-YGet rights and content

Abstract

The paper presents a method for extending rational B-spline curves and surfaces. The approach taken is geometric, and it can easily be implemented in a CAD/CAM surface modeler based on the rational B-spline mathematical form. The method uses knot insertion and the reflection of control points to generate extensions. As extrapolation can, in general, result in unpredictable results, this method should be used for relatively ‘short’ extensions.

References (16)

There are more references available in the full text version of this article.

Cited by (0)

View full text