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Kris Vanneste authored
Convert geographic to cartesian coordinates before interpolation in to_mesh_grid_data method of UnstructuredGridData. Implemented inverse-distance weighting in to_mesh_grid_data method of UnstructuredGridData. Re-implemented nearest-neighbor weighting in to_mesh_grid_data method of UnstructuredGridData, allowing > 1 neighbor. git-svn-id: https://svn.seismo.oma.be/svn/seismo/mapping/layeredbasemap/trunk@5217 40b490c5-b4d9-47cb-8714-9bef99b524d5
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