Hi Alexei, It is not a good idea to wrap a south facing dial around a cylinder. That will not work properly. Any straight line on a plane southdial will change into a curved line on a cylinder. So you have to calculate more the 2 points to draw a line.
For local suntime, with or without correction for latitude, a style parallel to the earth axis may be used. For other phenomenae you need just the shadow of a single point as you would need on a plane dial. Best wishes, Fer. Fer J. de Vries [EMAIL PROTECTED] http://www.iae.nl/users/ferdv/ Eindhoven, Netherlands lat. 51:30 N long. 5:30 E ----- Original Message ----- From: Alexei Pace <[EMAIL PROTECTED]> To: <sundial@rrz.uni-koeln.de> Sent: Friday, January 07, 2000 10:52 PM > Hello > > If you design a vertical south dial , and 'wrap' it around a south facing > gnomon on a cylinder,,, will it work? > > I would like to know how one may design a sundial on say a cylindrical > building....you cannot simply turn the building around like as in a > cylindrical/sheperd's dial! > The one at Disney was of this form... but I dont knwo what type of dial is that > > thanks for any help > > alexei pace > > > ************* > If at first you don't succeed...forget skydiving. >
