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<p class="p1">I wrote something like this in an e-mail the other day, and realized that it might be of general interest. Then I realized that I wasn't sure it was correct! In any event, here it is, and I hope it proves edifying, either for me or for someone else.</p>
<p class="p2"><br></p>
<p class="p3">Ies2rad chooses the shape of the luminous object based on the "luminous opening" in the IES file. It will generate a surface (or two surfaces, one up and one down), a box, a flattened cylinder, or a sphere. Then it chooses one of the mappings for the photometry from source.cal: boxcorr, cylcorr, flatcorr, or corr.</p>
<p class="p4"><br></p>
<p class="p5">--<span class="Apple-converted-space"> </span></p>
<p class="p6">Randolph Fritz</p>
<p class="p6"><span class="Apple-converted-space"> </span>design machine group, architecture department, university of washington</p>
<p class="p6">rfritz@u.washington.edu -or- rfritz333@gmail.com</p>
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