I have velocity field data stored in RGB format where R = angle and G = amplitude/magnitude. I am wanting to create a custom color wheel with the following:
R: [0 1] where 0.5 = 0 degrees
G: [0 1] where the values increase going from the center to edge of circle
B: unused / zero
Does anyone have any suggestions on how to go about this? I would like it to be cyclic (i.e. smooth transition in colors at -pi and pi). Thank you in advance.