Sep 052011
This GH definition tests for solar access (sun vs shade) throughout a day at a specific increment of time. i.e. it will check every 15 minutes for solar access and then add 0.25 hours to the total for that point on the surface.
There are other tools out there that will do this sort of calculation, Ecotect for one, but I wanted to generate this definition with the hope of migrating away from such tools.
