Hi I'm quite new to postgis and spatial databases. competent with sql and db's
My problem: How to locate adjacent polygons. I have around around 2k irregular polygons. They've have been calculated as alpha / concave hulls from point sets. They're saved into pg as multipolygons id | description | geom The polygons dont have any regularity with regard to location and interaction the majority are close to a neighbour, but not touching. Typically within +/- 1 - 5% of polygon max dim a small number slightly overlap 1 or more neighbours, usually to quite a small extent their irregular shape can include 'undercuts' I need to identify the adjacent neighbours for each polygon I looked at various methods that might allow me to do this but I cant get a 100% solution Can anyone suggest methods that might work thanks Colin -- http://www.fastmail.fm - The professional email service _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
