It seems as if something in the DD mapping engines has changed in the last 3-4 months that is resulting in skewed orthomaps. By skewed, I mean when I bring the tif into civil 3D an compare to site plans, one side of the site may be aligned within a foot but the other side of the site will be off by 7-8 feet. When we use GCPs with the same flight characteristics, the issue is resolved. The problem is we are not enterprise and paying $50 for GCPs every time we process a map (weekly) is not realistic.
I can’t for the life of me understand why DD insists on charging for GCPs, it does nothing but force customers to consider competitors when if they didn’t they would be the clear choice, but i digress.
This particular site is 60 acres, relatively flat, and has ongoing construction. I have tried everything that I can think of to get a better end product, hoping someone more knowledgeable might have suggestions.
I’m flying a Mavic 2 Pro, 80/80 overlap.
I’ve tried crosshatch w/perimeter, crosshatch w/o perimeter, no crosshatch w/perimeter, no crosshatch no perimeter. There are definitely noticeable differences in 3D but I’m really only concerned with the orthomap for this project and the various configurations offered little/no changes in results other than size and fly/upload/processing time. Is anyone else seeing this issue? Any other ideas on things to try?