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501075199 https://github.com/pydata/xarray/pull/3013#issuecomment-501075199 https://api.github.com/repos/pydata/xarray/issues/3013 MDEyOklzc3VlQ29tbWVudDUwMTA3NTE5OQ== ecarrara 191850 2019-06-12T00:37:24Z 2019-06-12T00:37:24Z CONTRIBUTOR

thank you @dcherian!

I added offsets, units, descriptions attributes. The other attributes (res, nodata, crs, transform, bounds and res) were already available.

mask_flag_enums is a list of tuples, I have tried to add this attribute too but the TestRasterio::test_serialization fails with the message:

```python

??? E ValueError: multi-dimensional array attributes not supported

netCDF4/_netCDF4.pyx:1529: ValueError ```

@fmaussion any feedback is welcome!

 
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   Add `scales` attributes to Dataset created in open_rasterio (#3012) 454337592
501014979 https://github.com/pydata/xarray/pull/3013#issuecomment-501014979 https://api.github.com/repos/pydata/xarray/issues/3013 MDEyOklzc3VlQ29tbWVudDUwMTAxNDk3OQ== ecarrara 191850 2019-06-11T20:42:37Z 2019-06-11T20:42:37Z CONTRIBUTOR

Does rasterio define a set of valid attributes or can you assign arbitrary attributes? If so, should we read and assign all attributes as we do for netCDF files?

@dcherian the attributes are pre-defined. Looking at the source code[1] of rasterio I found this list:

property nodatavals # Nodata values for each band property nodata # The dataset's single nodata value property mask_flag_enums # Sets of flags describing the sources of band masks. property crs # The dataset's coordinate reference system property descriptions # Descriptions for each dataset band property transform # The dataset's georeferencing transformation matrix property offsets # Raster offset for each dataset band property scales # Raster scale for each dataset band property units # A list of str: one units string for each dataset band property bounds # Returns the lower left and upper right bounds of the dataset property res # Returns the (width, height) of pixels in the units of its

I belive that the attributes not handled yet by xarray are: scales, offsets and units.

[1] - https://github.com/mapbox/rasterio/blob/1.0.24/rasterio/_base.pyx

 
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   Add `scales` attributes to Dataset created in open_rasterio (#3012) 454337592

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