A HSV color picker for iOS with a HUE donut and a Saturation/Value triangle. Also contains a Conic Gradient class with a configurable interpolater.
See source code comment and example.
Forks, patches and other feedback are always welcome.
RGB-HSL transforms. Ken Fishkin, Pixar Inc., January 1989. from "Graphics Gems", Academic Press, 1990
Copyright 2012 Neopixl S.A. - Apache 2.0 licence.