Hello Laurence, Welcome to the List. You will get many valuable answers to this questions; of this I am sure.
Meanwhile, just for fun, look at this picture: http://www.de-zonnewijzerkring.nl/eng/index-maand-werk.htm It shows you how to intersect your plane with the bundle of hour planes defined by the shadow of a north-pointing gnomon. This is really what you are going to do. Rudolf Hooijenga Heemskerk 52-30N 4-40E -----Oorspronkelijk bericht----- Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Onderwerp: Calculating dials using projections No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.13.37/1042 - Release Date: 1-10-2007 18:59
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