issue_comments: 385498531

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https://github.com/pydata/xarray/issues/2042#issuecomment-385498531 https://api.github.com/repos/pydata/xarray/issues/2042 385498531 MDEyOklzc3VlQ29tbWVudDM4NTQ5ODUzMQ== 601025 2018-04-30T19:09:41Z 2018-04-30T19:09:41Z NONE

@mrocklin gdal can read/write windows:

```

Read raster as arrays

banddataraster = raster.GetRasterBand(1) dataraster = banddataraster.ReadAsArray(xoff, yoff, xcount, ycount).astype(numpy.float) ``` from: https://pcjericks.github.io/py-gdalogr-cookbook/raster_layers.html

Also see BandReadAsArray and BandWriteAsArray in http://gdal.org/python/osgeo.gdal_array-module.html (which appear to be a read/write gdal.Band.ReadAsArray method and gdal.Band.WriteArray method respectively).

But there are some got'yas there in that GDAL as far as I recall is not thread safe. I wonder how you got that to work other than setting up a slave read process that handles all reads.

 
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