observablehq / observablehq/plot
Plot.legend with different domains for color and symbol
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bug
- Dominant language
- HTML
- Stars
- 5.4k
- Forks
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Description
Trying to generate a legend when the color and symbol axes are both set and have different domains:
Plot.legend({ color: { domain: [1, 2, 3] }, symbol: { domain: [4,5,6] } })This will currently silently output
with no clear indication why neither the colors nor the symbols are visible.
Originally posted by @mwaibel-go in #755
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
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- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start at the Plot.legend entry point and reproduce the example with separate color and symbol domains. Trace why the generated legend omits both visual encodings, then verify that the result gives a clear indication of the incompatible domains.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- d3, javascript
- Domain
- data-visualization
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 42/100