[Radiance-general] Sun too close to zenith

[Rob Guglielmetti]

Hi all,

I'm using Francesco Anselmo's "radmap" script to generate some annual 
skies for a fairly low latitude, and for a portion of the summer gensky 
throws me a warning: "sun too close to zenith, reducing altitude to 87 
degrees".  This adjustment creates a slight "bump" in the summertime 
corner of the analemma when you view a hemispherical fisheye projection 
of the annual sun positions.  (The sun positions are being generated by 
the script, which is getting its info from an epw weather file.)

What is the cause for gensky relocating my suns to 87 degrees?

- Rob Guglielmetti