[Fix] Always respect user-specified color_continuous_scale
#5439
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…autocolorscale=True When a user explicitly provides color_continuous_scale, it should always be respected, even if the template has coloraxis_autocolorscale=True. Previously, the template's autocolorscale setting would override the user's explicit colorscale. The fix tracks whether color_continuous_scale was explicitly provided by the user (before apply_default_cascade fills it from template/defaults), and only sets autocolorscale=False when the user explicitly provided a colorscale. This preserves automatic diverging palette selection when colorscale comes from template/defaults. Changes: - plotly/express/_core.py: Track user_provided_colorscale and conditionally set autocolorscale=False only when user explicitly provides colorscale - plotly/express/_imshow.py: Same fix for imshow() function
Add tests to verify that user-provided color_continuous_scale overrides template autocolorscale=True, and that template autocolorscale is respected when user doesn't provide a colorscale. Changes: - tests/test_optional/test_px/test_colors.py: Add test_color_continuous_scale_autocolorscale() - tests/test_optional/test_px/test_imshow.py: Add test_imshow_color_continuous_scale_autocolorscale()
antonymilne
changed the title
color_continuous_scale
Add changelog entry for PR plotly#5439 fixing issue where user-specified color_continuous_scale was ignored when template had autocolorscale=True.
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Fixes #5433. When a user explicitly provides
color_continuous_scale, it should always be respected, even if the template hascoloraxis_autocolorscale=True. Previously, the template'sautocolorscalesetting would override the user's explicit colorscale.A couple of tests are failing but I'm pretty sure it's not my fault.
Here's the behaviour now. Before this PR, all plots in the above table would have looked the same with the exception of the top left one, where the user-specified
color_continuous_scalewould have been ignored.Code PR
plotly.graph_objects, my modifications concern the code generator and not the generated files.