Overlap Analysis

Discussion created by matthew_friesen on Feb 10, 2014
Latest reply on Feb 10, 2014 by jimcousins

I am attempting to display areas which overlap using a defined symbology. I have over 5 categories which I would like to identify areas of overlap between one-another. If category B overlaps category C, I would like this area to have a specific colour associated with it. Transparency does not work as it is difficult to identify what colour is being displayed.

I have considered using the raster calculator to identify areas which overlap, but I am unaware if there is a way to identify which polygons, or categories, are overlapping (I understand I can identify areas that overlap, and how many times they do, but am not sure if you can specify the program to identify which areas and polygons overlap).

I would like the end result to show which polygons belonging to their respective categories overlap, and then use symbology to colour the resulting areas accordingly. Thank you in advance.