[Matplotlib-devel] Gasoline Rainbow: a modernized prism colormap

[Michael Waters]

Hi all,

I don't know if anyone other than Isaac Gerg is interested, but 
gasoline_rainbow has about 5.3x the total contrast of viridis. I 
understand there are some aesthetic issues with the colormap, but as an 
upgrade for prism, I don't think it's too bad.

Cheers,

-Mike

On 3/4/20 3:12 PM, Isaac Gerg wrote:
> sorry, I didnt mean monotonic luminance but repeating colors. I think 
> the colormap is useful as it stands.
>
> Isaac
>
> On Wed, Mar 4, 2020 at 4:03 PM Michael J. Waters 
> <waters.mike.j at gmail.com <mailto:waters.mike.j at gmail.com>> wrote:
>
>     Hi Greg,
>
>     I think having monotonic luminance is good because the viewer
>     still gets information on the overall position in the data set,
>     not just local contrast (like with prism).  If there is sufficient
>     interest, I could try constructing a new version that forgoes
>     linear luminance for monotonic luminance but still is perceptually
>     uniform.
>
>     -Mike
>
>
>     On 3/4/20 2:25 PM, Isaac Gerg wrote:
>>     I think its a good colormap for exploratory analysis.  I would
>>     include it in the baseline.
>>
>>     Lots of people bag on jet or rainbow but for exploratory analysis
>>     where you have data of a large dynamic range, linear luminance is
>>     not something you want.  I think this would be a good substitute.
>>
>>     On Tue, Mar 3, 2020 at 1:32 PM Michael J. Waters
>>     <waters.mike.j at gmail.com <mailto:waters.mike.j at gmail.com>> wrote:
>>
>>         Hi All,
>>
>>         I have developed a colormap, gasoline_rainbow, with high
>>         local contrast
>>         that is also perceptually uniform and linear luminant. It
>>         fulfills a
>>         similar role as prism but has some non-local contrast due to
>>         it's linear
>>         luminance.
>>
>>         You can see it here:
>>         https://gitlab.com/mjwaters/gasoline-rainbow-colormap/-/tree/master
>>
>>         Is there any interest in including this map in MPL?  I think
>>         it could
>>         fill a role missing from the default options.
>>
>>         Cheers,
>>
>>         -Mike
>>
>>         _______________________________________________
>>         Matplotlib-devel mailing list
>>         Matplotlib-devel at python.org <mailto:Matplotlib-devel at python.org>
>>         https://mail.python.org/mailman/listinfo/matplotlib-devel
>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/matplotlib-devel/attachments/20200305/4f54e897/attachment.html>