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Hi Daniel.

I did as you suggested. But it still did not produce the correct georeference.

What I did is flatten the pcd (z: 0), register coordinates local, and truncated global coordinates. scale up pcd to 100 times for all dimensions, and apply transformation (translate: x; 2.6, y; 101.6).

Did I ...

Ah, I understand now. Since all the Z coordinates of your reference points are 0 (= 2D points), and you tell CC to scale the align cloud (3D) to best fit the points, it ends up rescaling the aligned points with a ridiculously small scale (so that 'P.z * 0 = 0' basically).

You can't align 3D ...

Can you give us an example of coordinates you use? Aren't they very large?

Normally, CC should suggest to apply a Global Shift in this case. Did you see any such question?


I'm not sure if it's large or not. The local coordinates in PCD are as follows:

-88.459938, 2.612011, 5.125117
14.940063 ...

Hi.

I'm really new here in CloudCompare, georeference, and other general stuff. So please apologise if my question is simple.


I just learned how to align one cloud with the real coordinates. When I finish pointing the coordinates, I click align and press Enter, it becomes like this.


pcd-blurry ...