A field by radial distance from the line through center along axis: lo → hi as that distance goes r0 → r1, clamped. axis is 0 (x), 1 (y), or 2 (z).
center
axis
lo → hi
r0 → r1
Optional
A field by radial distance from the line through
centeralongaxis:lo → hias that distance goesr0 → r1, clamped.axisis 0 (x), 1 (y), or 2 (z).