settings = GamutToSettingsSch(gammaInput, gammaTable, gamut)

Find the best device settings to produce
the passed linear device coordinates.

This version works by linear interpolation on the fit values,
with x as the output values and f(x) as the input values.

The passed coordinates should be in the range [0,1].
The returned settings also run from [0,1], but after
inversion of the device’s gamma measurements.

9/26/93 dhb Added calData argument.
10/19/93 dhb Allow gamma table dimensions to exceed device settings.
11/11/93 dhb Update for new calData routines.
8/4/96 dhb Update for stuff bag routines.
dhb Pulled out as a subroutine.
8/21/97 dhb Convert for structures.
11/16/06 dhb Adjust for [0,1] world.
dhb No more values return because we can’t get at it in the [0,1] world
dhb Pass input x values as well as y values.

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