Cactus Code Thorn InterpToArray
Thorn Author(s)     : Erik Schnetter <schnetter@cct.lsu.edu>
Thorn Maintainer(s) : Erik Schnetter <schnetter@cct.lsu.edu>
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Purpose of the thorn:

Interpolate grid functions to grid arrays on a regular grid of
locations, so that these can e.g. be output more easily.