plotly / plotly/plotly.py

subplot layouts break with go.Scatter and go.Scattergl

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bug P3
Dominant language
Python
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Merged PRs (30d)
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Description

When I plot many subplots, the axes occasionally break. I am using fixed subplot sizes. Occasionally line plots will not plot on their respective subplot axes. You can see the interactive hover actions do work on the axes, but the lines themselves are drawn shifted much higher or lower than the axis. All the go.Heatmap objects seem to graph just fine.

Sometimes I can fix the layout bug by choosing a different axis height, but most values don't fix it so it's a long game of guess-and-check.

audio_diff.html.zip

Screenshot 2023-10-05 at 1 42 38 PM
Screenshot 2023-10-05 at 1 42 46 PM

Google chrome seems to report some errors

Specifying overflow: visible on img, video and canvas tags may cause them to produce visual content outside of the element bounds. See https://github.com/WICG/shared-element-transitions/blob/main/debugging_overflow_on_images.md .
1 source

audio_diff.html:12

One or more documents in this page is in Quirks Mode, which will render the affected document(s) with quirks incompatible with the current HTML and CSS specifications.
Quirks Mode exists mostly due to historical reasons. If this is not intentional, you can add or modify the DOCTYPE to be <!DOCTYPE html> to render the page in No Quirks Mode.

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 by opening the attached audio_diff.html.zip in Chrome and reproducing the fixed-size subplot layout with go.Scatter and go.Scattergl alongside go.Heatmap. Compare the shifted line traces with their axes and the browser warnings; done means the line plots remain aligned with their respective subplot axes across tested heights.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
data-visualization
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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