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  • snowman2 · 5 ✖

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  • Adding mask to open_rasterio · 5 ✖

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id html_url issue_url node_id user created_at updated_at ▲ author_association body reactions performed_via_github_app issue
550467547 https://github.com/pydata/xarray/pull/2618#issuecomment-550467547 https://api.github.com/repos/pydata/xarray/issues/2618 MDEyOklzc3VlQ29tbWVudDU1MDQ2NzU0Nw== snowman2 8699967 2019-11-06T19:37:19Z 2019-11-06T19:37:19Z CONTRIBUTOR

@jsignell, the masked kwarg is in rioxarray if you need it: https://corteva.github.io/rioxarray/html/examples/clip_geom.html

 
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   Adding mask to open_rasterio 392361367
487059783 https://github.com/pydata/xarray/pull/2618#issuecomment-487059783 https://api.github.com/repos/pydata/xarray/issues/2618 MDEyOklzc3VlQ29tbWVudDQ4NzA1OTc4Mw== snowman2 8699967 2019-04-26T13:38:13Z 2019-04-26T13:38:13Z CONTRIBUTOR

Good question, I was thinking adding tests.

 
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   Adding mask to open_rasterio 392361367
487050467 https://github.com/pydata/xarray/pull/2618#issuecomment-487050467 https://api.github.com/repos/pydata/xarray/issues/2618 MDEyOklzc3VlQ29tbWVudDQ4NzA1MDQ2Nw== snowman2 8699967 2019-04-26T13:08:39Z 2019-04-26T13:08:39Z CONTRIBUTOR

I think it would be good to write the dataset to a netcdf, and read it back in with xarray.open_dataset to ensure everything encodes/decides properly.

 
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   Adding mask to open_rasterio 392361367
448628008 https://github.com/pydata/xarray/pull/2618#issuecomment-448628008 https://api.github.com/repos/pydata/xarray/issues/2618 MDEyOklzc3VlQ29tbWVudDQ0ODYyODAwOA== snowman2 8699967 2018-12-19T15:08:34Z 2018-12-19T15:09:01Z CONTRIBUTOR

I think the solution would be to add a masked argument and property to the class RasterioArrayWrapper here.

And pass in the (masked=masked) argument here

That would pass riods.read( ..., masked=self.masked) when reading data from rasterio here

 
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   Adding mask to open_rasterio 392361367
448402521 https://github.com/pydata/xarray/pull/2618#issuecomment-448402521 https://api.github.com/repos/pydata/xarray/issues/2618 MDEyOklzc3VlQ29tbWVudDQ0ODQwMjUyMQ== snowman2 8699967 2018-12-18T22:54:44Z 2018-12-18T22:54:44Z CONTRIBUTOR

@jsignell, this looks like it would work - I like the implementation. Some things I would recommend to add is checks for when the nodata value varies across bands (maybe skip the mask and raise a warning) and when the nodata value is already NaN. Also, you should probably set the nodatavals to NaN if masked to resemble the behavior of xarray elsewhere.

I think @fmaussion would be a good reviewer for this PR.

 
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   Adding mask to open_rasterio 392361367

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