LV_Forestry
First Officer
Flight distance : 4726654 ft
Latvia
Offline
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DJI Mindy Posted at 4-1 03:16
Hello, I would like to ask if you have set the X and Y coordinates to reverse direction (X is the east direction, Y is the north direction). Please set the X and Y coordinates correctly and try again.
After completing the above settings, you need to correctly set the X and Y coordinates when importing GCP. X is the east direction and Y is the north direction, and then check and test again.
Dear Mindy, thank you for your support, but the problem is completely different and very common with Terra.
I am not sure but I have the impression that when we import an OBS (base station) file, whether it is the Lidar RTB file or a third party OBS file, Terra performs a transformation (Simplification of coordinates )... In any case there is something wrong.
The error does not come from our national NTRIP networks because the GCPs taken with them are good.I am ok to receive a DJI representative for a field experiment to demonstrate the problem if necessary.
A quick and effective solution could be to implement a manual point cloud offset function in Terra. A window where we could select X Y and Z values to shift the entire point cloud. Or a distance and an azimuth.
*Blue Marble Geographic Global Mapper Offset feature
It would also be fantastic to be able to integrate custom TIFF rasters to offset the value of Z. Because your geoids are obviously wrong or not implemented at all.
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