Expose glasbey variants exposed by the (python) colorcet package

[anntzer]

• cmap version: 0.0.3
• Python version: any
• Operating System: any

Description

colorcet (the Python package) exposes a few variants on the glasbey color series (not really colormaps, but rather lists of maximally different colors), per holoviz/colorcet#11 (comment).

Admittedly these are constructs from the colorcet maintainers and not so much from the original glasbey paper, but it would be nice to include them, as I don't think there's any other color lists (designed for that use case) in cmap.

(Also, as a side point, glasbey should probably be categorized as "qualitative", not as "misc.")

What I Did

N/A

[tlambert03]

the reason I haven't done that (yet) is because I added the complete functional form here: https://github.com/tlambert03/cmap/tree/main/src/cmap/data/glasbey ... So, I'd kinda like to try to "unify" the glasbey variants here and expose parametrized functional colormap variants (https://github.com/tlambert03/cmap/issues/19)

I'm not opposed to exposing the "preselected" variants from the colorcet lib (particularly as a "stop gap") ... but it'd be nicer in the long term to expose them under the glasbey namespace, as parameters to the function above.

glasbey should probably be categorized as "qualitative", not as "misc."

I can see this one going both ways. Wanna make a strong(er) argument for "qualitative"?

[anntzer]

I'm not opposed to exposing the "preselected" variants from the colorcet lib (particularly as a "stop gap") ... but it'd be nicer in the long term to expose them under the glasbey namespace, as parameters to the function above.

Sure, both seem reasonable.

Wanna make a strong(er) argument for "qualitative"?

The original paper title (Colour Displays for Categorical Images) clearly states these are intended for categorical images, which I think is what you mean by "qualitative"?

[tlambert03]

yeah, I mostly went with the matplotlib categories ... and I agree with you after having another look. happy to make that change.

as for exposing more glasbey variants. i guess we could just include the pre-built ones used by colorcet. I know @kevinyamauchi was also looking to have some pre-built variants exposed as well.