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holoviz / colorcet

A set of useful perceptually uniform colormaps for plotting scientific data
http://colorcet.holoviz.org
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Add glasbey_tableau10? #45

Closed endolith closed 4 years ago

endolith commented 4 years ago

Is your feature request related to a problem? Please describe. I sometimes want to plot lots of colors but I want them to look nice

Describe the solution you'd like Similar to #11, could you add a Glasbey color list that starts with the (new) Tableau 10 series?

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jbednar commented 4 years ago

Sure! But to clarify first, are you looking for additional colors in the style of NewTableau10 (with medium saturation and medium amounts of gray, from the looks of them)? Glasbey colors will be the opposite, i.e. the next few colors in the series will be maximally different from the NewTableau10 colors, either unsaturated, highly saturated, with lots of gray mixed in, with no gray mixed in, etc. If you're after more colors like NewTableau10, you could achieve that with the algorithm, but first you would have to filter out all the colors not in that style, and only then run the algorithm. If on the other hand all you want is the first 10 colors to match NewTableau10 and then get a bunch of other colors, then that's easy.

endolith commented 4 years ago

Good point. They have pretty contradictory goals, I guess, where Tableau is a bunch of colors of similar lightness that look good together, and Glasbey is just maximally different. I guess what I really want is an extended version Tableau with 25-30 colors that look good together and are reasonably distinguishable, which maybe I should make myself since it's not as general-purpose.

I was just thinking of this since the old Tableau10 is the beginning of glasbey_category10.

jbednar commented 4 years ago

Makes sense. If you were able to constrain the colors available by appropriate options to the underlying glasbey code (which may or may not require modifying the glasbey code) so that it would continue to produce colors in that style, then I'd love to see that and then would add the resulting automatically generated colormap here. But assuming you aren't starting such a project, then I'll close this issue for now, as it sounds like you don't need what I could do myself (glasbey colors different from NewTableau10).

If you make a new set by hand, you can consider contributing it to https://github.com/pyviz/contrib_colormaps , where hand-constructed maps are fine. I do think others could be interested in such a colormap!