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A general-purpose Green's function-based interpolator
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DOI：10.1016/j.cageo.2008.08.012.png)
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Abstract
En 中文
A useful approach to data interpolation is to determine the Green's function for the interpolation operator and construct the interpolation from the super-positioning of suitably scaled Green's functions located at the data constraints. Such Green's functions have been determined for Cartesian splines in 1-, 2-, and 3-D, including regularized splines and splines in tension. Furthermore, these techniques have also been extended to spherical surfaces. I present a new command-line tool, greenspline, which acts as a general-purpose interpolator for both Cartesian and spherical surface data. The program runs on all platforms and is compatible with the Generic Mapping Tools. (C) 2008 Elsevier Ltd. All rights reserved.
Keywords:
Splines
Green's functions
Interpolation
Gridding
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