Which libraries have good implementations of Basis splines?

Question

I'm looking to use the finite element method with B-splines as my function basis. Which C/C++ libraries have good B-spline support?

Specifically, I'm looking for an implementation of a stable algorithm, even if it's slow. I plan to precompute a lot of the inner products I need and store them in a file somewhere if the b-spline calculation gets slow enough to be bothersome.

I'm pointing this question to Nathan Collier, who has done some work using the fundamental PETSc data structures to implement b-splines as a basis in PETSc. Here's an example. Instructions for how to run the code (in a PETSc 3.2-p5 install). This is early work, so there may be some rough edges. — Aron Ahmadia, Jan 14 '12 at 05:52

Dan · Answer 1 · 2012-01-14T06:38:26.463

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The Gnu Scientific Library (GSL) has an implementation of B-splines, and the documentation can be found here. According to the documentation, GSL uses De Boor's algorithm, which is numerically stable.

edited Jan 14 '12 at 06:38

answered Jan 14 '12 at 06:08

Dan

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score 1 · Answer 2 · answered Sep 10 '13 at 14:44

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Also take a look at John Burkhardt's libraries at http://people.sc.fsu.edu/~jburkardt/ His code is LGPL licensed, as opposed to the GPL used by the Gnu Scientific Library.

answered Sep 10 '13 at 14:44

hengestone

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Which libraries have good implementations of Basis splines?

2 Answers2