Axis scale that is linear in the sine of x. The axis limits are constrained to fall between
+90degrees. The scale function is as follows:\[y = \sin(\pi x/180)\]
The inverse scale function is as follows:\[x = 180\arcsin(y)/\pi\]
Construct a new scale.
The following note is for scale implementors.
The registered scale name.
limit_range_for_scale(vmin, vmax, minpos)
Return vmin and vmax limited to some range within +/-90 degrees (inclusive).