CloudCompare forum

Hi Daniel,
i've just stumbled across an issue when trying to save a large bin file. When I want to reopen the saved file, I get the error "[17:46:36] Read error (corrupted file or no access right?)"

The file contains a total of about 1.5 billion points (RGB, intensity, normals). I've segmented the original scans according to the individual buildings as well as the topographic data.
Interestingly enough, saving this file as bin works fine. Only when I merge all singe point cloud entities (for extracting ground points) and save the merged cloud, I get the above mentioned error message.

System-Config:

Win 7 Pro 64bit
Xeon E-5 1650 V2
128 GB RAM
Nvidia Quadro M4000

Cheers!

Hum, I think the merging must be culprit (it must generate a structure that is not correctly saved...).

Where do the original scans come from? Are they structured clouds (i.e. loaded from a FARO or PTX file)?

Yes, those are structured clouds (ptx format from leica).
I've also tried deleting all sensors, but that does not help.
Cheers

edit: after subsampling the pointcloud and deleting the original, the bin file can be saved/ loaded correctly.

I think the culprit is the grid structure that is associated to the cloud (and can't be deleted ;). I'll try to reproduce the issue on my side (with smaller clouds hopefully ;)