On 11/28/2016 3:23 AM, scott wrote:
> Also it would be surprising to me if the
> human visual range came out exactly as a cylinder (after a brief glance
> of the maths involved), are you sure about this?
>

The human visual range has a very irregular shape.

https://en.wikipedia.org/wiki/File:Cie_Chart_with_sRGB_gamut_by_spigget.png

There's a lot of blank empty space around it in every color space. (The 
one in the picture is called CIExyY I think.

I would like to learn how to plot this irregular shape in the near future.

Mike

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