BUG: Classification lost when importing XYZ or TXT data

peter.hintze
Contributor

BUG: Classification lost when importing XYZ or TXT data

peter.hintze
Contributor
Contributor

Issue:

When importing XYZ or TXT data (and defining the culumns via the import dialog: X,Y,Z,R,G,B,Classification). The classification values are not imported into the resulting RCS file.

 

Expected:

Classification in XYZ file should be imported into the resulting RCS file.

 

see attached txt exmaple file

 

 

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Pointdump
Mentor
Mentor

Hi Peter,
What does the Classification Value represent?
Dave

Dave Stoll
Las Vegas, Nevada

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64GB DDR4 2400MHz ECC SoDIMM / 1TB SSD
NVIDIA Quadro P5000 16GB
Windows 10 Pro 64 / Civil 3D 2024
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yan.fu
Alumni
Alumni

Hello @peter.hintze ,

 

This is a limitation of current ReCap version.

ReCap loads the classification information from raw scans and saved the classification into .rcs files, however, the classification information is not visualized in ReCap and the classification information cannot be exported.

Better support for classification information is in our Roadmap. 

 

Thank you for your feedback.

 

Best Regards,

Yan

peter.hintze
Contributor
Contributor

Hi @yan.fu ,

 

thank you for the answer. I don't refer to the missing option to visualize classes in  Recap - I really am refering to the fact, that the resulting RCS file has no classification values anymore from the original XYZ file. When i load the file e.g. into Map 3D / Civil, it already says so in the "Details" report of the RCS file import/attach-dialog. And once imported, the option to visualize the classes in Map 3D / Civil is also greyed out.

 

When i use LAStools' "txt2las" to convert the XYZ file into LAS and then import the LAS file into Recap creating an RCS, the classification value are saved into the RCS and can be displayed in Map 3D / Civil. But this workaround needs more unecessary steps.

 

So, my only explanation is, that Recap loses the classes when creating the RCS file even though i have defined the related column in the XYZ-import dialog.

 

Could you check?

 

Thx, Peter

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yan.fu
Alumni
Alumni

Hi @peter.hintze ,

 

Thank you for your feedback.

 

We have logged an issue for it and the dev team will look into it. 

 

Thank you!

 

Yan

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Pointdump
Mentor
Mentor

Peter,
While you're waiting for Autodesk, here's your TXT file converted to LAZ in LASTools. I used "-parse xyzRGBc". Now you have:

histogram of classification of points:
   164155 ground (2)
     34041 low vegetation (3)
      11717 medium vegetation (4)
  164650 high vegetation (5)
     17847 building (6)

Dave

 

44755_1.png

 

Dave Stoll
Las Vegas, Nevada

EESignature

64GB DDR4 2400MHz ECC SoDIMM / 1TB SSD
NVIDIA Quadro P5000 16GB
Windows 10 Pro 64 / Civil 3D 2024

peter.hintze
Contributor
Contributor

@Pointdump Thank you! 😉 

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TerryDotson
Mentor
Mentor

But this workaround needs more unecessary steps.

The conversion process to .LAZ should be considered an absolutely necessary step.  In storage the .TXT file is taking 12.5x the amount of space, to anyone not familiar with the project there is a possibility of confusion of what the columns represent.   Before emailing the .TXT you should ZIP them anyway, would have to on large files.

 

The .LAZ format should be the standard storage format.

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klarinda.gunadi.widjanarko
Autodesk
Autodesk

Hi @peter.hintze ,

 

We have made a fix for this in ReCap 2023.

Can you try it to see if it works?

 

Btw just some note, if you have ReCap 2022 installed, please uninstall it first before installing ReCap 2023.

 

Thanks.



Klarinda Gunadi Widjanarko
Senior Software Engineer
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