Another good source, with equations for several score projections but no derivations, is "An album of Map Projections" USGS Professional Paper 1453, USGPO, 1989. The late John P. Snyder was the sole author of Paper 1395 and the co-author (with Philip M. Voxland) of Paper 1453.
-----Original Message----- From: Tom Kreyche [mailto:[EMAIL PROTECTED] Sent: Tuesday, April 25, 2000 2:30 AM To: 'Patrick Kessler'; [email protected] Subject: RE: steriographic projection Check out the book "Map Projections-A Working Manual," US Geological Survey Professional Paper 1395, United States Government Printing Office, 1987. It's considered one of the primary sourcebooks for map projection information. It and other books on cartography are available from http://gisstore.esri.com/ Tom -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Patrick Kessler Sent: Monday, April 24, 2000 10:28 PM To: [email protected] Subject: steriographic projection Hello. Can anyone recommend an essay on steriographic projection? In particular I am searching for a proof that circles on the sphere are mapped onto the equatorial plane as circles. thanks -patch ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
