Interpolate 2-D or 3-D scattered data - MATLAB griddata
For 2-D interpolation, where xq and yq specify an m-by-n grid of query points, vq is an m-by-n array. For 3-D interpolation, where xq, yq, and zq specify an m-by-n-by-p grid of query points, vq is an m-by-n-by-p array. If xq, yq, (and zq for 3-D interpolation) are vectors that specify scattered points, then vq is a vector of the same length.
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