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Well, targets are always a very robust solution (but CC only accepts spherical ones). But otherwise, I would recommend using 'point pair based alignment' at least to roughly register the new scans to the group of already georeferenced ones, and then if necessary run ICP to refine the result (with th...

Well, the Rasterize tool is to create rasters (geotiff), which is quite different from a TIN/DTM represented as a triangular mesh (what you would get with the PoissonRecon or more simply with the Delaunay 2.5D meshing tool). Also, most of the mesh formats don't handle large coordinates (contrarily t...

Hum, not sure to follow you. With the Cross section tool, and it's 'repeat' mode, you can extract slices of a specified width, and even with an interval between the slices that's different from the slices thickness. And of course you can set the initial section position so that's its aligned with a ...

Sadly CloudCompare only generates geotiff rasters for now...

Ah, I think this is already on the TODO list (sadly, it's growing ever and ever, but never shrinks due to the lack of contributors...).

Frankly I don't know... nothing really makes sense. I guess you are using the latest driver?

Which version of Windows are you using?

Can you open a ticket on github and tag Thomas Montaigu (the new LAS I/O author) maybe?

Well, it's hard to see (don't hesitate to activate the EDL shader ;), but assuming you have some overlapping surfaces, you can indeed use the Edit > Translate/Rotate tool to roughly align the scans, and then use the ICP tool (see https://www.cloudcompare.org/doc/wiki/index.php/Alignment_and_Registra...

I think the command line mode should help you do that? (with the -SS option):
https://www.cloudcompare.org/doc/wiki/i ... _line_mode