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Control point insertion for B-spline curves

Published online by Cambridge University Press:  17 April 2009

Heinz H. Gonska  and
Andreas Röth
Heinz H. Gonska
Affiliation:
Dept. of Mathematics and Computer Science, Drexel University, Philadelphia, PA 19104, United States of America Fachbereich Mathematik, Universität Duisburg, D-4100 Duisburg 1, West Germany
Andreas Röth
Affiliation:
Fachbereich Mathematik, Universität Duisburg, D-4100 Duisburg 1, West Germany
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Abstract

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Inserting new knots into B-spline curves is a well-known technique in CAGD to gain extra flexibility for design purposes. However, from a user's point of view, the insertion of knots is somewhat unsatisfactory since the newly generated control points sometimes show up in unexpected locations. The aim of this note is to show that these problems can be circumvented by inserting the control vertices directly, thus also providing a more natural user interface.

Type
Research Article
Information
Bulletin of the Australian Mathematical Society , Volume 38 , Issue 2 , October 1988 , pp. 307 - 313
Copyright
Copyright © Australian Mathematical Society 1988

References

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