I'm desperately searching for a page I've recently seen on the forum (or was it the Wiki?), describing the maths and process on how to determine a good distance between GCP;s on a large land survey project. - Is there anyone out there who know what…

Hello all, After a lot of trial and error, we managed to produce a 1.2sq km model of Downtown Dubai but we still face a couple of challenges with regards to GCP's and using the KML Polygon for the water surface as you can see below. During the AT…