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This repository was archived by the owner on Aug 29, 2025. It is now read-only.
Faceted heatmap's should share single colorbar #1
Description
In this example...
each of the three heatmap traces is producing it's own colorbar with slightly different autorange extents, and they all overlap. I think instead we should only display a single colorbar, and we should manually compute the cmin cmax values across the full dataset so that the colors across the three facets are comparable.
Activity
nicolaskruchten commentedon Jan 3, 2019
I agree with you on what should happen, of course! Unfortunately I don't think this is something
pxcan handle, at least not the computation of the bounds. We need some way of telling the JS layer that the color scale should be shared, so that it can handle the bounds computation itself, as it depends on thezparameter for each trace.nicolaskruchten commentedon Apr 6, 2020
UPDATE: we did in fact implement both density heatmaps and matrix heatmaps in Plotly Express.