[Radiance-general] sun positions as calculated by gensky

[John Mardaljevic]

> Now I am getting curious :-)
It harks from the bad old days of working on theoretical/speculative  
projects to demonstrate new approaches.  Description here:
http://www.iesd.dmu.ac.uk/~jm/pdfs/p504_slides.pdf

It turns out that the actual roof of Changi airport looks very  
different from the CAD rendering on which I (very loosely) based my  
parametric model.
http://upload.wikimedia.org/wikipedia/en/c/cc/Changit3checkin.jpg

Whatever.  It was a (fun) academic exercise.

-John