Title: Nonnegativity preserving macro-element interpolation of scattered data
Authors: Schumaker, Larry L.
Speleers, Hendrik
Issue Date: Jul-2009
Publisher: Department of Computer Science, K.U.Leuven
Series Title: TW Reports vol:TW543
Abstract: Nonnegative bivariate interpolants to scattered data are constructed using some C1 macro-element spline spaces. The methods are local, and rely on adjusting gradients at the data points to insure nonnegativity of the spline when the original data is nonnegative. More general range-restricted interpolation is also considered.
Publication status: published
KU Leuven publication type: IR
Appears in Collections:Numerical Analysis and Applied Mathematics Section

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