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[FEATURE]: Add dynamic sorting of the tooltip legend ordering for hovermode='x unified' mode #5453
Description
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Description
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Please add dynamic sorting of the tooltip legend ordering for hovermode='x unified' mode, so that when the user move the mouse over the chart, the legend showing up in the tooltip block reflects the ascending order of the legend value for that specific x value.
Why should this feature be added?
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This will drastically improve the intuitiveness of the tooltip block information, making direct comparison between different trace at a certain x value much more easier.
Mocks/Designs
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Notes
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Activity
[-][FEATURE]:[/-][+][FEATURE]: Add dynamic sorting of the tooltip legend ordering for hovermode='x unified' mode[/+]robertclaus commentedon Dec 17, 2025
Thank you for submitting this request! Could you provide a demo or a mock of what you're looking for? That would help us make a decision in how this would be implemented.
emilykl commentedon Sep 4, 2026
Hi @steveshaoucsb! Apologies for the belated follow-up — I wanted to let you know that a layout
hoversortattribute was added by plotly/plotly.js#7734 and first released in plotly.py v6.8.0.Here's an example from the docs showing how to use
hoversort: https://plotly.com/python/hover-text-and-formatting/#sorting-unified-hover-labels-by-valueIf you're still around, we'd love to know whether that feature meets your needs!