Datasets:
TS and TLS appear to use different coordinate systems; could you provide the transformation/alignment method?
Hello,
Thank you for sharing this dataset.
While using the dataset, I noticed that the TS and TLS data appear to be in different coordinate systems:
TS coordinates in 02_ExportedData/01_TS/rockfall_sim.txt are on the scale of:
Easting ~ 2680907, Northing ~ 1251209, Height ~ 534
TLS point clouds in 02_ExportedData/02_TLS/raw_pcd/*.ply are on the scale of:
x ~ -1.7, y ~ 0.04, z ~ -0.46
Also, the TLS documentation states that:
Registration: done
Georeference: not done
So it seems that:
all TLS epochs are registered in a common local TLS coordinate system
but TS and TLS are not directly in the same coordinate system
Could you please clarify this point?
If TS and TLS are indeed in different coordinate systems, could you also provide the method to transform them into a common coordinate system?
This would be very helpful for me in obtaining the true value of the displacement field.
Thank you!!
Hi,
Yes, we provided the original observations directly from the two instruments. If you only want to compare the displacement magnitude, the coordinate systems do not matter. Alternatively, you can align them using software such as CloudCompare by selecting common points.
Best regards,
Zhaoyi