Use mappable with scatter?

Community
1

Hi,

I’m creating a scatter plot and add a colorbar afterwards - this works fine.
However, there is one thing I don’t understand - for the scatter-plot I have to provide the way how a number is mapped to a color by 4 parameters (cmap, norm, vmin, vmax). However, the colorbar takes a ScalarMappable-object, that somehow contains the same information.

Is there a way to define a ScalarMappable-object once and use it for the scatter plot and the color bar? For me, this would make things easier to understand.

Thanks,
oz

2

Can you please post your code? Usually scalarmappbles are created internal to the functions from Norm and Colormap objects created by the user, as described in https://matplotlib.org/tutorials/index.html#colors