Hi all,
I have a single buffer shapefile that contains an area-weighted concentration in one of the attribute fields. I want to sum concentration values from the overlapping buffers within the single shapefile so that I can create a raster image of the summed value. This raster image will then be used to extract the summed values to points. I have a screenshot below of the shapefile.
Just to clarify again, that is a single shapefile so many of the coverage tools don't seem to work. When I have tried summary statistics, it won't export the table to a database. Intersecting it on itself doesn't seem to work. There's no way to do a spatial join (that I know of) because it is only a single file. I've tried dissolving it and doing a polygon to raster but the numbers don't seem to come out right and I believe I'm only getting the top-most buffer value. Does anyone know of an add-in or an appropriate procedure to deal with this issue? Any and all help is much appreciated.
Cheers,
Justin Coughlin
Similar problem here.
The thread Darren Wiens refers to provides the steps to get the result you are looking for.
A silly question; do you have to have a vector output or is raster also acceptable. The reason I ask is that this type of analysis (starting from the points) is normally performed in raster (which would require the Spatial Analyst extension), see: Point Density—Help | ArcGIS for Desktop and Kernel Density—Help | ArcGIS for Desktop