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3d surface subplots - how to get a legible legend- python dash

Having used
swap_surface = dict(type=‘surface’,x=x,y=y,z=z)
treas_surface = dict(type=‘surface’,x=x,y=y,z=z)

figz = tools.make_subplots(rows=1,cols=2,specs = [[{‘is_3d’:True},{‘is_3d’:True}]])

I produced the following side-by-side charts:

The goal was to have a single color scale shared by both charts, and combined into one legend. Instead I have 2 legends being superimposed on top of each other, rendering them useless.

What’s the fix to have a single consolidated colorscale and a single legend?

Thank you!

You can choose not to show the colorscale for one of the subplots by setting the showscale attribute in surface to False:

swap_surface = dict(type=‘surface’, x=x, y=y, z=z, showscale=False)

I also recommend that you look at the cmin and cmax attributes as well if you are planning on using different z-values for each subplot (ie, set cmax = max(z0) where z0 is the trace where showscale = True).

Thanks @michaelbabyn i’ll give that a try.