plotly / plotly/plotly.js

pointNumber passed to Plotly.Fx.Hover() is not used for box plots

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bug P2
Dominant language
JavaScript
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Merged PRs (30d)
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Description

When attempting to build off of the Coupled Hover Events example, I've found that box plots don't appear to make use of the pointNumber property of evt. I did find a workaround that uses xval and yval, but, in addition to being a bit more verbose, it can cause the wrong point to highlight if several are close / overlapping, so some way to specify particular points still seems useful.

https://codepen.io/cszucko/pen/gONaZqd

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Research direction

Reproduce the issue using the linked Coupled Hover Events example and CodePen, focusing on Plotly.Fx.Hover() with box plots. Compare the pointNumber behavior with the xval/yval workaround; done means pointNumber reliably highlights the specified box-plot point, including when points overlap.

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

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