Ground Classification

[wayne]

This would be useful, but doesn't appear to work.  This is still the entire cloud including buildings, trees etc.  Any ideas? 

[Pointdump]

Hi Wayne,
I've had really good results with Automatic Ground Classification. Can you post your raw cloud?
Dave

[wayne]

https://www.myqnapcloud.com/smartshare/6cd48i8io61n8200r14ux452_0b816ji4k56824o6q9uv3594ca2e20i8

It's a fair lump of data, maybe better to test on only a few.  1 - 72 are internal scans, the rest are mostly external.  My scans originate from a Z+F scanner.  I don't know if that is relevant, it shouldn't be as they always import OK.    I have always found that none of the scan tools have ever worked on my scans.  Meshing, clean up, and now classification.  If I export the scans from Recap into E57, then I can classify in Trimble Business Centre.  So there isn't anything wrong with the scans in themes selves, you would have thought.

Cheers

[Pointdump]

Wayne,
"It's a fair lump of data..."
Well I guess. After an hour of downloading it's up to 8.7GB, and no end in sight.(No indication of how big the file is.) How about posting just the point cloud in your screen shot.
Dave

[wayne]

Hi

It's around 22GB in all, what I meant was that you could download individual scan files from the support folder.  If you have 8GB, I am sure you have enough.  Create a new project and add the completed downloaded files into it.

Thanks

[Pointdump]

Wayne,
OK, I didn't know you could double-click the Recap Lowick Hall folder. I thought you had to take all or nothing.
Sorry, I won't be able to help with this one. I'm used to working with a LAS or LAZ point cloud file and creating a RCP file with a Support Folder. I have no idea what to do with your files. Most have formats I've never heard of.
Dave

[zhaoyang_ma]

Hi @wayne,

In the cases when the points are not classified correctly, you can use the manual classification feature to modify the result manually.

[wayne]

I use ZF Scans, this feature doesn't work what's so ever.

This is what classification looks like in Trimble Business Centre.  This is what we need in Recap, primarily after classification (I don't need to decimate) one can isolate the buildings and delete the noise.  If we could then export that scan data, we take a clean & light cloud into Revit or for meshing.

This feature simply doesn't work, nor did meshing or point cloud cleaning. 

[wayne]

August 2025, still doesn't work.  It seems to subsample from the entire point cloud and place that in a ground classified category.  This isn't the ground, it is still the whole point cloud.  I am not sure what the point of it is.   What we need is automatic feature classification.

Walls

Vegetation

Power Poles

Signs

Ground 

NOISE!!!

And so on.  

This job has been cracked in other software.