Classification codes lost

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thomasbalstroem
Posts: 3
Joined: Thu Sep 20, 2012 5:28 pm

Classification codes lost

Post by thomasbalstroem »

Hi Daniel,
First thank you very much for sharing this great software with us.
Now, my problem: I've received a point cloud in LAS format that has an outlier that I want to delete. To do that I've performed the following (not knowing if there's a more simple method) to identify and delete it:
1) Segment
2) Polygonal Selection
3) Segment Out
4) Confirm
5) Save (into a new file)

This works fine, however, when I open the saved LAS file, the classification codes are gone.
Please explain.

Kind regards,

Thomas Balstroem
Assoc.Prof. in Geoinformatics
Dept. of Planning
Aalborg University, Copenhagen
Denmark
daniel
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Location: Grenoble, France
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Re: Classification codes lost

Post by daniel »

Hum, in fact CC loads the LAS file classification field as a standard scalar field (there's no equivalent of classifications in CC structures).

Then it simply "forgets" that this scalar field was a classification. We could use the scalar field name to detect that it (may) be a classification and ask the user to confirm this.

I'll try to add this in the next release.

Best
Daniel, CloudCompare admin
thomasbalstroem
Posts: 3
Joined: Thu Sep 20, 2012 5:28 pm

Re: Classification codes lost

Post by thomasbalstroem »

Thank you. I'll look forward to see that implemented.
Kind regards,
Thomas
daniel
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Joined: Wed Oct 13, 2010 7:34 am
Location: Grenoble, France
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Re: Classification codes lost

Post by daniel »

Ok, the last online version (09/22/2012) should fix this issue.
Daniel, CloudCompare admin
thomasbalstroem
Posts: 3
Joined: Thu Sep 20, 2012 5:28 pm

Re: Classification codes lost

Post by thomasbalstroem »

Fantastic! This works great now. Thank you very much, Daniel! Appreciate this a lot.
Kind regards, Thomas
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