Keep only redondant points

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benoitM
Posts: 2
Joined: Mon Oct 18, 2021 2:01 pm

Keep only redondant points

Post by benoitM »

Hello,

I would like to know if it's possible within cloudcompare to keep points that are in at least N scan positions.
For instance having 30 scan of the same room at different positions and only keep points that within a threshold in at least 2 positions.
Another way of formulating this request would be to filter points that only appears in Y or less scan positions.
If yes could you precise a workflow ?

Thanks in advance !

Benoit
daniel
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Location: Grenoble, France
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Re: Keep only redondant points

Post by daniel »

I guess you would 'just' have to compute the distances between 2 scans, filtering the points with a distance below your threshold (with Edit > Scalar fields > Filter by value) and then use the resulting cloud to compute the distances to another scan, and repeat the process. If you have 30 scans, you may want to automate the process with the command line or one of the new Python wrappers (see the download page).
Daniel, CloudCompare admin
benoitM
Posts: 2
Joined: Mon Oct 18, 2021 2:01 pm

Re: Keep only redondant points

Post by benoitM »

Ok, thank you Daniel, I will try.
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