Photo By Nick Tierney Last week I needed to understand how to calculate how much two spatial areas overlapped. I found a nice thread on GIS stack exchange that explained an answer (from user Sandy AB). This pretty much gave me what I was looking for - but I was after something with more pictures, so here’s an example of that. The Data I started by getting some spatial areas from the ABS at this link, selecting, “statistical local areas level 4 …