plotly / plotly/plotly.js

Fill doesnt work when curves are of type scattergl

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bug P3
Dominant language
JavaScript
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Forks
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Avg merge
2d 12h
Merged PRs (30d)
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Description

When the type of 2 curves is "scattergl" and there is a fill betweem them, it doesnt work.

Here is a reproducible, minimized codepen: https://codepen.io/GoldBlacky/pen/yyLgOdd

I would also be very happy about a workaround or general direction to try to implement a workaround myself. The reason I need scattergl is because my application is too laggy when using scatter with multiple thousand data points.

Thanks!

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the minimized CodePen reproduction linked in the issue and compare its behavior with equivalent scatter curves. Trace the scattergl rendering path for fill between two curves, then verify that the reproduction renders the fill correctly without regressing the performance reason for using scattergl.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
data-visualization
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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