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raytracing
==========

:Summary: Ray tracing.
:Naming Convention: ``raytracing.txt``
:Regex: ``raytracing\.txt``
:File Type: ASCII, 45 KB


Contents
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This ASCII file contains ray-tracing data in a non-standard format.
There are sections, labeled 'Whole band', '360-375nm', '360-400 band', etc.
Each section contains a list of keyword-value pairs::

                                       X                Y
    Field coordinate  :  0.00000000E+000  0.00000000E+000
    Image coordinate  : -1.31443308E-014  1.90926685E-015
    RMS Spot Radius   :  1.56900183E+001 um
    RMS Spot X Size   :  1.10945183E+001 um
    RMS Spot Y Size   :  1.10945183E+001 um
    Max Spot Radius   :  4.77164316E+001 um

There are no obvious units on the coordinate values.