LV_Forestry
First Officer
Flight distance : 4726654 ft
Latvia
Offline
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In theory AR's description is correct, that's how it happens.
In practice, sometimes, often, Terra only produces the second part of the flight plan. Everything that is done before the battery swap is on the SD card, all the files are there, but nothing comes out of Terra. No error message. You just have to curl up in a ball, cry, and go back to do another flight.
I did the test this afternoon after seeing your post, and bingo the problem occurred. Below the black part is the first flight before battery swap, blank point cloud.
To overcome this problem, I cut the surface with the "search grid" QGIS function. I make squares that stick to the flight time of a battery according to the overlap/altitude ratio. Which only generates complete flights without pause. Between each flight I do a battery swap, I do not restart the drone. So far I have never had a problem with this method.
This is quite convenient because it has another advantage, the point clouds are smaller, their processing and display is much faster.
Another advantage for me is that I can physically move the takeoff point and therefore ensure VLOS throughout the project.
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