[Radiance-general] Understanding ies2rad

[R Fritz]

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.

> 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.

-- 
Randolph Fritz
  design machine group, architecture department, university of washington
rfritz at u.washington.edu -or- rfritz333 at gmail.com
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