So, for plot(), scatter() and other plotting functions, we can provide a
label= kwarg so that a legend() can automatically populate the legend,
making it extremely easy and convenient for making legends. But for
image-based (scalar mappable) type plotting functions like imshow() and
contourf(), the label kwarg doesn't do anything useful, but the colorbar()
is sort of analogous to a legend(), but for scalar mappables.
Does it make sense to others for the following to be equivalent:
> plt.imshow(z)
> cbar = plt.colorbar()
> cbar.set_label('foobar')
> plt.imshow(z, label='foobar')
> plt.colorbar()
I found that it is a small change to make this work, I just wanted to know
if others think this makes sense before putting in the time to add
documentation, modify examples and such.
Cheers!
Ben Root
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