Suggestion to use a 'real' cyclic colormap in the code example of Cookbook section 3.20.5

[yvonnefroehlich]

The Cookbook section 3.20.5. Cyclic (wrapped) CPTs is about how to turn a colormap into a cyclic one from a value-perspective. The code example uses the colormap jet, which is no cyclic colormap when looking at the start- and end-colors. I feel it makes more sense to use a colormap, which is also cyclic from a color-perspective, like romaO, bamO, brocO, corkO, and vikO of the Scientific Colormaps by F. Crameri or phase of the cmocean colormaps by Thyng et al. 2016 (built-in up on GMT 6.4.0 (: ).

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[PaulWessel]

That is true of the data are periodic. But lots of uses of cyclic colormap wants to have fringes so one can "count" how many wraps there are, e.g., in InSAR. Both are useful for different purposes.

[yvonnefroehlich]

That is true of the data are periodic. But lots of uses of cyclic colormap wants to have fringes so one can "count" how many wraps there are, e.g., in InSAR. Both are useful for different purposes.

Thanks @PaulWessel for your fast answer and explanation.