Dear List Can anybody please point me in the direction of formulae or a website to allow computation of the two angles for direction of shadow from sun and also length of shadow from sun at different times of the day/year and at different long/lat or better still at British National Grid and relative to North on BNG.
I'd like to be able to compute the bearing of a line from the sun and pretty accurately. Can anybody comment on the accuracy that can be achieved if the exact location and time are known? I'm comparing bearings derived from MasterMap data with measured angles on site ( long shots to trig points ) and would like to include bearings computed from sun in comparisons. Any titles of books on this subject would be much appreciated. Thanks for any help. Regards Bob -- bob young --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
