[Radiance-general] Solar penetration

[Randolph Fritz]

On Wed, Aug 21, 2002 at 12:43:41PM +0100, Bruce Sounes wrote:
> When I did 'Building Science' many years ago, we used "solar protractors" to
> read off the suns altitude and azimuth at different times of the year. The
> solar protractor was a plot of the suns path across a hemisphere for
> different times of the day for a given latitude, generally printed on a A4
> bit of clear plastic. This was used in assessing orientation of designs in
> plan and overhangs/shading in section. Alternatively we could use it to
> assess solar penetration from a point inside the building by marking out on
> the protractor the area of sky visible through openings.
> 

Nothing to do with Radiance, but some of your might be interested in
knowing that these are still available.  It's now called the
Pilkington Sun Angle Calculator, and they can be ordered from the
Society of Building Science Educators at
<http://www.sbse.org/resources/sac/index.htm>.

Randolph