A modified Clough-Tocher interpolant
The Clough-Tocher interpolant is a standard scheme for scattered data interpolation. For its mostly used form one has to estimate so-called cross-boundary derivatives. This is usually done by ''condensation of parameters''; the present paper suggests a different method. It is based on minimizing jump discontinuities in the second derivatives. As a verification method, so-called reflection lines are simulated.
scientific article; zbMATH DE number 3940592