OOF2: The Manual

Details

Description

Axis2HSV is an Angle2Color that converts the Axis representation of an orientation into an HSVColor.

The direction of the orientation's axis of rotation is represented by a declination θ and an azimuth φ. Axis2HSV maps the cosine of θ into the HSV value, so that an orientation with θ=0 is bright and θ=180 is black. It maps the azimuth φ into the HSV hue, so that φ=±180 is red and φ=0 is cyan.

The orientation's angle of rotation about the axis, ψ, is mapped to the HSV saturation, so that ψ=0 is fully unsaturated (white, gray, or black), and ψ=1 is fully saturated.

Note that this isn't a great way to convert orientations to angles, because small changes in orientation can result in a large change in color, and black represents more than one orientation (all orientations with ψ=0 or θ=180).