Last two versions of MapInfo do voronoi analysis. Dean Zias In a message dated 11/11/03 7:28:05 PM Eastern Standard Time, [EMAIL PROTECTED] writes:
> > 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 > > >
