A local shape-preserving interpolation scheme for scattered data
In this paper we present a new local method for constructing a C-1 function which interpolates triangulated scattered data sets. This function is made up by polynomial triangular macro-elements of adaptive degree, which are an extension of the Clough-Tocher cubic elements and tend to the interpolating planar triangular interpolant as the degrees tend to infinity. (C) 1999 Elsevier Science B.V. All rights reserved.
triangular macro-elements scattered data interpolation tension methods