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pysteps.utils.interpolate.rbfinterp2d

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pysteps.utils.interpolate.rbfinterp2d#

pysteps.utils.interpolate.rbfinterp2d(xy_coord, values, xgrid, ygrid, **kwargs)#

Radial basis function interpolation of a sparse (multivariate) array.

This method wraps the scipy.interpolate.Rbf class.

Parameters:

  • xy_coord (ndarray) – Array of shape (n, 2) containing the coordinates of the data points in a 2-dimensional space.

  • values (ndarray) – Array of shape (n) or (n, m) containing the values of the data points, where n is the number of data points and m the number of co-located variables. All values in values are required to be finite.

  • xgrid (ndarray) – 1-D arrays representing the coordinates of the 2-D output grid.

  • ygrid (ndarray) – 1-D arrays representing the coordinates of the 2-D output grid.

  • class. (Any of the parameters from the original scipy.interpolate.Rbf) –

  • nchunks (int, optional) – Split and process the destination grid in nchunks. Useful for large grids to limit the memory footprint.

Returns:

output_array – The interpolated field(s) having shape (ygrid.size, xgrid.size) or (m, ygrid.size, xgrid.size).

Return type:

ndarray

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