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76
Explain the de Casteljau algorithm!
de Casteljau algorithm gives a geometric procedure to construct points on Bézier curves.
Example: Given control points
(cubic spline), we compute
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Note how this schema iteratively evaluates the Bernstein polynomials for all coefficients:
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Useful properties:
Example: Given control points
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Note how this schema iteratively evaluates the Bernstein polynomials for all coefficients:
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Useful properties:
- Numerically robust: Sequence of affine combinations (instead of sum of scaled polynomial coefficients)
- First derivative:
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Flashcard info:
Author: janisborn
Main topic: Informatik
Topic: Computergrafik
School / Univ.: RWTH Aachen
City: Aachen
Published: 18.05.2022