Migrate proximity user guide off datashader

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
75/100
Issue type
Documentation
Clarity
Clearly specified
Activity status
Quiet
Tech stack
python

Research direction

Start with docs/source/user_guide/proximity.ipynb and inspect its imports, plotting cells, and prose describing the datashader workflow. Re-execute the notebook after replacing the named rasterization and rendering steps, then verify it runs top to bottom without datashader and regenerates the expected plots and preview image.

Written by the indexing model from the issue text.

Description

area:proximity documentation user-guide-example

Reason or Problem

docs/source/user_guide/proximity.ipynb imports datashader, rasterizes points with Canvas().points(), and renders with shade/stack/dynspread.

Proposal

  • Remove the datashader imports.
  • Replace Canvas().points() point rasterization with arr.xrs.rasterize(...).
  • Replace shade/stack/dynspread and datashader colormaps with matplotlib.
  • Update the prose cells that describe the datashader workflow.
  • Re-execute the notebook so outputs and the preview image regenerate cleanly.

Done when

  • The notebook runs top to bottom with no datashader import and produces the expected plots.

Part of removing datashader as a dependency; final packaging removal is tracked in #3450.

Dominant language
Python
Stars
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Forks
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Avg merge
2d 12h
Merged PRs (30d)
7

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  4. Open a pull request that references the issue number.

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