Call me stupid, but somehow I couldn't figure out how to do the following.
I've got a testing shapefile with 18 features, which I successfully imported into GeoDjango (1.3, running on Spatialite). As an practical example, I've taken a centroid of one of them (
area.mpoly.centroid) and tried to find all areas within a 20 km distance (touching would be enough, needn't cover complete area).
However, this only gives me an empty list. Increasing the number to 200 km (in theory, this should cover all of my dataset) also yields nothing.
Am I doing something wrong?