Vertical mapper makes it very easy to do voronoi analysis on point data. Unfortunately it doesn't help you! You could try saving your data to a non earth projection to use the said tool and try saving it back to the original projection. Not sure if it'll work.
Upinder GIS support Cardno Willing Sydney NSW -----Original Message----- From: Bob Hudson [mailto:[EMAIL PROTECTED] Sent: Wednesday, 12 November 2003 10:09 AM To: [EMAIL PROTECTED] Subject: MI-L Thiessen polygons in lat-long mapper? I am looking at a number of archaeological sites whose size is known. Is there any way I can create Thiessen/Voronoi polygons in a map layer, weighting the size of each polygon according to the size of each centre? I have done this with buffers, getting a series of "circles of influence " of each site, but a classic Thiessen polygon would also be useful. I know there is a tool around that works on non-earth, but my maps are lat-long. I am using MI 5.5. Bob Hudson Archaeology Department, University of Sydney, Australia. http://acl.arts.usyd.edu.au/~hudson/bobhpage.htm --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 9112 --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 9114
