On Fri, 24 Oct 2003, [iso-8859-1] Isobel Clark wrote: > > - convert your longitude > > and latitude data into a planar projection first > Do you have an algorithm that works everywhere in the > world?
There is no single projection that would be appropriate for everywhere in the world at once, just as there is no 2 dimensional (planar) projection that can accurately preserve angles, distance, direction and area for an entire map:-) Is that what you are asking for? jim b ----- Jim Bash, Associate Director Internet : [EMAIL PROTECTED] CAGIS (m/c 092) Phone (W): 312/996-6367 Program in Geography, Dept of Anthropology Fax : 312/996-6343 University of Illinois at Chicago 1007 W. Harrison St, Rm 2102 BSB URL : http://www.cagis.uic.edu/ Chicago, IL 60607-7138 -- * To post a message to the list, send it to [EMAIL PROTECTED] * As a general service to the users, please remember to post a summary of any useful responses to your questions. * To unsubscribe, send an email to [EMAIL PROTECTED] with no subject and "unsubscribe ai-geostats" followed by "end" on the next line in the message body. DO NOT SEND Subscribe/Unsubscribe requests to the list * Support to the list is provided at http://www.ai-geostats.org
