observablehq / observablehq/plot
Raster tip 🐛
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bug
- Dominant language
- HTML
- Stars
- 5.4k
- Forks
- 244
- PR merge metrics
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Description
I noticed a small bug where a raster mark throws an error if you use the data-less raster({ fill: (x, y) => ... }) form and include a tip.
Notebook: https://observablehq.com/d/aff3900cd6feec56
I'm not sure if this is a simple or a complicated fix since it looks like index comes up a lot.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the failure using the linked Observable notebook and the data-less raster({ fill: (x, y) => ... }) form with a tip. Trace the raster mark implementation where index is handled, then verify that the same raster form renders successfully with its tip and that existing raster behavior remains intact.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- data-visualization
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100