[Matplotlib-users] viridis colormap model

Nathan Goldbaum nathan12343 at gmail.com
Thu Oct 1 20:46:52 CEST 2015

The code used to generate all of the new colormaps is in these repositories:


See also the appendix at the bottom of this page:


As well as Stefan and Nathaniel's talk at this year's scipy:


On Thu, Oct 1, 2015 at 1:42 PM, Carnë Draug <carandraug at octave.org> wrote:

> Hi
> I saw the new default colormap viridis and I was wondering about the
> function that was used to generated it.  Looking inside the source,
> I only found hardcoded values for a 256 long colormap [1].
> I understand that I can interpolate this to get a colormap of any
> length.  However, what I'm really trying to find is the function that
> was used to generate those values in the first place.  I'm not so much
> interested in the actual python code to do it, my interest is purely the
> mathematical model behind it.
> Is this published anywhere?  If not, can anyone tell me where to find
> the model?
> Thank you
> Carnë
> [1]
> https://github.com/matplotlib/matplotlib/blob/b9710e674878799f9b7279802291a3d245b36e08/lib/matplotlib/_cm_listed.py#L774
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