How to plot a smooth color wheel?

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Mr M.
Mr M. on 1 Feb 2019
Commented: db on 4 Dec 2019
How to plot a smooth color wheel, like this?

Accepted Answer

Image Analyst
Image Analyst on 2 Feb 2019
See my demo. Adapt as needed.
0000 Screenshot.png
  1 Comment
db on 4 Dec 2019
Thanks for this!
How might you go about adapting this to use different colormaps? Specifically I'm trying to warp this colorwheel in such a way that dark blue and dark red end up on opposite sides of the circle, but it would also be cool to be able to specify a colormap like jet or autumn and plot that around the wheel. I've tried modifying a bunch of values, but either the colors get all messed up or the geometry of the wheel gets warped too. Any tips?

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