Re: [Matplotlib-users] Making a data-driven colormap

[Friedrich R. <fri...@gm...>]

2010/3/28 Ariel Rokem <ar...@be...>:
> Hi Chloe,
>
> _segmentdata - that's what I was looking for!

Hmm, much easier would maybe be:

colorbar = figure.colorbar(...)

colorbar.ax.set_xlim((C.min(), C.max())  # Or .set_ylim() for vertical cbars.

I just did a dive into the matplotlib code and docu:
http://matplotlib.sourceforge.net/api/colorbar_api.html#matplotlib.colorbar.ColorbarBase

It has also the advantage that the xticks represent the correct values.

For small C ranges one should consider using a cmap subdivided finer?

Friedrich