How can you join two projects built in the same area, for example a building and a plot of land?
Tcp PointCloud Editor can work with several point clouds, regardless of their origin. In this way, it is possible to combine the cloud of a building made with a laser scanner and a terrain from a drone flight.
To align both point clouds, you would simply have to define control points in one of the clouds and associate these points in the other.
In the following video you can see a similar process: Registering point clouds