point cloud to 3d model

[ugurdemirezen]

Hi Guys!

We have a .xyz data from a multibeam sonar.

How can I convert from point cloud form to 3d model form?

Thanks!

[PablerasBCN]

Edit--> Mesh-->Delaunay

Also

Poison Surface Reconstruction. Depends on the data, but I would say Delaunay will do fine.

[ugurdemirezen]

Thanks a lot for your help.

These are the results.

How can I do it cleaner?

If you have any suggestions I would be glad to listen

[PablerasBCN]

Delaunay is usefull for more "planar" stuff like the ground seen from an aerial scaner.

In your case I would say the Poison Surface Reconstruction may be the tool you need.

https://www.cloudcompare.org/doc/wiki/i ... n_(plugin)

Also, may be interested in Meshlab
https://www.meshlab.net/

[ugurdemirezen]

These are the outputs. Is it all I can do about them?

I mean is there any way I can clean them?

[PablerasBCN]

when you perform the Poison Reconstruction make sure the octree is the highest value you've since your cloud is not very dense.

If still the output is bad, I would say is the max you can do. At least that I'm aware of. May be there is a way to fit planes since your geometry is rather planar, but I'm not used to do so.

[PablerasBCN]

ANd I forgot of a thing, to clean up a poison mesh you can us the Segmentation Tool / the scisors icon. To select and delete the undesired faces.

As an alternative may be you could draw polylines along the "tunnel" and then use the tool that creates a mesh between polylines. I think this last one would give you a very clean low poly mesh, but not sure what you're after if super clean simple model or most accurate possible with available data.

[daniel]

And don't forget to output the 'density' scalar field, as explained in the dialog. This will allow you to remove the parts with low density = too few supporting points. See the wiki as well.

[atiyeh]

Hi dear friends

The helicopter blade deforms during rotation and I want to model the structure of the deformed blade.
in other words, I want to estimate the model for the deformed blade shape by using the 48 3-dimensional points. Modeling with the NURBS method had a high error because the sampling density of points was very low.

What modeling method do you suggest for my data?

[DA523]

I mean is there any way I can clean them?

Use CC poisson reconstruction then clean with Blender software ...
.
Can you attach your pointscloud here in zip file?