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bi-directional perceptually flat colormaps in matplotlib? #11508
Description
A few folks have asked me how they can plot a perceptually flat colormap (like viridis) for bi-directional data (AKA, data that you'd use coolwarm or RdBu for). I searched around but didn't find anything like this in matplotlib. I know it's been discussed before, does anyone know if those discussions went anywhere?
Activity
choldgraf commentedon Jun 26, 2018
Ah I found #6254 which implements a circular colormap. Has something similar been done for a diverging colormap?
dstansby commentedon Jun 26, 2018
This would be a really great thing to add, and I don't think it already exists.
choldgraf commentedon Jun 26, 2018
are you gonna be at scipy @dstansby ? or @tacaswell ? maybe we can make it into a quick hack :-)
afvincent commentedon Jun 29, 2018
@choldgraf It looks like cmocean may have a few of them, namely "balance", "delta", and "curl".
dstansby commentedon Jul 9, 2018
@choldgraf I won't be at scipy, but I'm in Berkeley now for 3 weeks, happy to spend an afternoon hacking this together/doing other Matplotlib things if you'll be around at all.
choldgraf commentedon Jul 10, 2018
@dstansby cool! I'll be back from Scipy starting Friday. Whereabouts are you working? You could probably use the BIDS space if you need a place to hang.
ImportanceOfBeingErnest commentedon Aug 11, 2018
Possibly related: #6033
choldgraf commentedon Aug 11, 2018
ooh nice find
jklymak commentedon Feb 4, 2019
I'll close in favour of #6033