Testing the waters with 2 GCP georeferencing (Helmert!)

In short&hellip; In OldInsuranceMaps.net it is now possible to georeference maps with only two ground control points, instead of the previously required three. For the time being though, we&rsquo;re keeping this capability hidden (more about that in this discussion and below), but I wanted to write a good summary here of how it works and why it is beneficial. Thanks to Dan VK for requesting this…