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added support for rasterio geotiff tags #3249

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merged 1 commit into from
Aug 26, 2019
Merged

added support for rasterio geotiff tags #3249

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7 changes: 5 additions & 2 deletions xarray/backends/rasterio_.py
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Original file line number Diff line number Diff line change
Expand Up @@ -322,11 +322,14 @@ def open_rasterio(filename, parse_coordinates=None, chunks=None, cache=None, loc
attrs["units"] = riods.units

# Parse extra metadata from tags, if supported
parsers = {"ENVI": _parse_envi}
parsers = {"ENVI": _parse_envi, "GTiff": lambda m: m}

driver = riods.driver
if driver in parsers:
meta = parsers[driver](riods.tags(ns=driver))
if driver == "GTiff":
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meta = parsers[driver](riods.tags())
else:
meta = parsers[driver](riods.tags(ns=driver))

for k, v in meta.items():
# Add values as coordinates if they match the band count,
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6 changes: 6 additions & 0 deletions xarray/tests/test_backends.py
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Expand Up @@ -3923,6 +3923,12 @@ def test_ENVI_tags(self):
assert isinstance(rioda.attrs["map_info"], str)
assert isinstance(rioda.attrs["samples"], str)

def test_geotiff_tags(self):
# Create a geotiff file with some tags
with create_tmp_geotiff() as (tmp_file, _):
with xr.open_rasterio(tmp_file) as rioda:
assert isinstance(rioda.attrs["AREA_OR_POINT"], str)
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def test_no_mftime(self):
# rasterio can accept "filename" urguments that are actually urls,
# including paths to remote files.
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