I have a dataset with several hundred shapefiles and need to ensure that there is at least double overlap throughout. I need a way to extract the areas without double overlap, or at least a way to color by number of overlapping shapefiles.
The image is of multiple shapefiles colored black with 50% transparency. As you can see there are areas with one, two, and even three overlapping shapefiles. With the 50% transparency, you can see the gaps with only single overlap, and I could manually delineate them, but I am looking for a way to do it automatically.