Shifting of elevation values

[alperasinmaz]

Dear all,

I have .las pointcloud data and unfortunately it has 2m offset systematic error (z value-elevation). How can I correct this in CloudCompare? I assume I need to change the shifting parameter. What's the most accurate way to do it? Also, does changing the shifting parameter of the Z value effect the overall accuracy?

Best,
Alper

[daniel]

No, keep the default Global Shift. Then you just have to use the 'Edit > Apply Transformation' and apply a translation of -2 along Z (with the second tab). Then save your could back to LAS, and it should have the original global coordinates shifted of 2 along Z.