[yt-users] Can these colormaps be imported?

[Kacper Kowalik]

On 07/26/2017 09:35 AM, Joseph Smidt wrote:
> Hey everyone,
> 
>     This repo has some perceptually uniform colormaps that are not in
> standard matplotlib/yt. [1] More info here[2] 
> 
> Anyway, it is not clear to me from his documentation how I might import
> these colormaps in a way I could use with YT.  Does anyone have an idea
> how that can be done? They seem to be a set of .csv files.   Thanks. 
> 
> [1] https://github.com/bokeh/colorcet
> 
> [2] http://peterkovesi.com/projects/colourmaps/

Hi,
yt uses matplotlib (in most cases) for plotting. Just install colorcet
as shown in [1]. Then:

import yt
import colorcet as cc

ds = yt.load('IsolatedGalaxy/galaxy0030/galaxy0030')
slc = yt.SlicePlot(ds, 'z', 'density')
slc.set_cmap('density', cc.m_fire)
# alternatively
slc.set_cmap('density', cc.cm['fire'])
slc.save()

As described in the notebook also in [1].

New colormaps can be also added via:

yt.visualization.color_maps.add_cmap('cc_fire', cc.fire)

Cheers,
Kacper


>
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