Hi all, I am looking to take a point dataset and generate a point density raster in PostGIS, similar to the ArcGIS Point Density tool in Spatial Analyst.
What I believe I need to do is to define a neightbourhood around each output raster cell centre and calculate a density value for each pixel based on the number of points that fall within that neighbourhood. Ideally to recreate the same results, I would like to define a neighbourhood with a radius of 8 cells - most likely a square neighbourhood. I have been considering this for a while but I really cannot understand how to acheive this. Any advise or help would be greatly appreciated. Kind Regards, James Holmes ----- GIS Undergraduate -- View this message in context: http://postgis.17.n6.nabble.com/Simple-Point-Density-Surface-tp4917343p4917343.html Sent from the PostGIS - User mailing list archive at Nabble.com. _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
