Store first tile as source encoding for tiled grids #3950
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weiji14
commented
May 14, 2025
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| # Full path to the grid | ||
| source: str | list = which(fname, download="a") | ||
| if resinfo.tiled: | ||
| source = sorted(source)[0] # get first grid for tiled grids | ||
| # Manually add source to xarray.DataArray encoding to make the GMT accessors work. | ||
| if source: | ||
| grid.encoding["source"] = source |
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Could add verbose="q" to the which call here, and probably remove the if source: line, but doesn't really matter if it's all gonna go away after the refactor to use xr.load_dataarray in #3932.
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I prefer to have verbose="d" added and if source removed, so that this PR is fully functional on its own.
seisman
reviewed
May 14, 2025
Co-authored-by: Dongdong Tian <[email protected]>
seisman
reviewed
May 14, 2025
seisman
approved these changes
May 14, 2025
Co-authored-by: Dongdong Tian <[email protected]>
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Description of proposed changes
Tiled remote dataset grids used to have an undefined
grid.encoding["source"]because there was a list of grids returned frompygmt.which, and we did not select any one. The change here means that we setgrid.encoding["source"]to the first grid in the list (sorted alphabetically).This means that slicing
xarray.DataArraytiled grids should return proper GMT AccessorGridTypeandGridRegistrationvalues, because the source file can be queried usinggrdinfoto get the values.Addresses #3932 (comment) and #524
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