Lots of interesting ideas that I wasn't aware of - Thank you everybody for your input; I'll let you know how it goes!
On 1/18/06, Schuyler Erle <[EMAIL PROTECTED]> wrote: > * On 16-Jan-2006 at 12:40PM PST, Neil Saunders said: > > > > Thanks for your reply; However I've tried using PostGIS but could't > > get the shapes to actually "merge" together. Ideally what I'd like to > > do is have a tool such as OpenEV in to which I could load my > > shapefile, select a given number of *adjacent* regions, and merge > > selected regions to a single region, if you catch my drift. I'm > > beginning to think that it may not be possible... :( > > You can totally do this in GRASS, if you have the patience to learn > GRASS. We describe how in hack #77 from Mapping Hacks > (http://www.mappinghacks.com/). > > If you have a recent PostGIS built with a recent GEOS, you might try > the BuildArea() function from GEOS: > > http://postgis.refractions.net/docs/ch06.html#BuildArea > > SDE >
