Support Website Contact Support Blog

merging data from a free flight and and grid flight

Is it possible to merge a project generated by an aerial grid flight and a project generated by a free flight?

We’d like to get, as accurate as possible, a model/point cloud and orthophoto of a couple of buildings and their surroundings. Our thought was to do two flights, one to get the entire area and then another around the buildings.

Hi Darlene, 

Yes, it is possible to merge multiple projects with different acquisition types e.g an aerial grid flight and a free flight. 
Please refer to our article on: How to merge projects

Important:  Two or more projects can be merged only if ALL of the following conditions are fulfilled:

  • The coordinate system (both horizontal and vertical) of the images has to be the same in all subprojects. Note: A subproject with no image geolocation can be merged with a subproject with image geolocation.
  • The GCPs have to be in the same coordinate system (both horizontal and vertical) in all subprojects. Note: A subproject with no GCPs can be merged with another subproject with GCPs. 
    It is highly recommended the GCPs to be added in the merged project, especially when more than 2 subprojects are merged.
  • The output coordinate system (both horizontal and vertical) of all subproject has to be the same. Note: A subproject with no georeference (arbitrary system) can be merged with a subproject with georeference.

Regards,