issues: 336371511

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
336371511 MDExOlB1bGxSZXF1ZXN0MTk3ODQwODgw 2255 Add automatic chunking to open_rasterio 306380 closed 0     10 2018-06-27T20:15:07Z 2022-04-07T20:21:24Z 2022-04-07T20:21:24Z MEMBER   0 pydata/xarray/pulls/2255

This uses the automatic chunking in dask 0.18+ to chunk rasterio datasets in a nicely aligned way.

Currently this doesn't implement tests due to a difficulty in creating chunked tiff images.

This also uncovered some inefficiencies in how Dask doesn't align rechunking to existing chunk schemes.

  • [x] Closes #2093
  • [ ] Tests added (for all bug fixes or enhancements)
  • [ ] Tests passed (for all non-documentation changes)
  • [ ] Fully documented, including whats-new.rst for all changes and api.rst for new API (remove if this change should not be visible to users, e.g., if it is an internal clean-up, or if this is part of a larger project that will be documented later)

I could use help on how the following:

  • How to create tiled TIFF files in the tests
  • The right way to merge different dtypes and block shapes in the tiff file. Currently I'm assuming that they're uniform
 
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