Find the field height index closest to a specific height value
[idx1,idx2] = ieFieldHeight2Index(fieldHeightList,height)
You can also request a pair of indices that bound the value. In that
case, idx1 < idx2 and
fieldHeightList(idx1) <= height <= fieldHeightList(idx2)
Example
fieldHeightList = opticsGet(optics,'rtPSFfieldHeight');
fhIdx = ieFieldHeight2Index(fieldHeightList,1.05)
[idx1,idx2] = ieFieldHeight2Index(fieldHeightList,0.9)
Copyright ImagEval Consultants, LLC, 2003.