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by daniel
Mon Mar 18, 2024 10:04 pm
Forum: Requests, new functionalities
Topic: Fixed / Read-only flag
Replies: 1
Views: 35

Re: Fixed / Read-only flag

Ah that's an interesting idea, I can add that to the TODO list.
by daniel
Mon Mar 18, 2024 3:38 pm
Forum: Questions
Topic: Calculating Surface Areas of Open Mesh
Replies: 2
Views: 66

Re: Calculating Surface Areas of Open Mesh

So after playing with the 'displayed' scalar field range, you should 'Edit > Scalar fields > Filter by value'. This will extract only the visible triangles to a new mesh entity.

Then you can compute the surface of this new mesh.
by daniel
Mon Mar 18, 2024 3:29 pm
Forum: Questions
Topic: Fine registration vs compute cloud/mesh results meaning
Replies: 1
Views: 46

Re: Fine registration vs compute cloud/mesh results meaning

So there are 2 differences: - the RMS is a slightly different calculus compared to the std. dev. (RMS = root of mean squares / STD DEV = root of 'mean squares minus the squared average') - the ICP tool only uses a subset of the total number of points at each iteration. Therefore the RMS is computed ...
by daniel
Fri Mar 15, 2024 4:30 pm
Forum: Questions
Topic: Compare Point Clouds
Replies: 1
Views: 102

Re: Compare Point Clouds

Well, it all depends on your 'reference' cloud density. If the point cloud that isn't measured with a tachymeter is quite dense, then it can be ok to use C2C.

See https://www.cloudcompare.org/doc/wiki/i ... _distances
by daniel
Fri Mar 15, 2024 4:26 pm
Forum: Questions
Topic: Create Mesh
Replies: 1
Views: 71

Re: Create Mesh

You have to compute the normals first: see https://www.cloudcompare.org/doc/wiki/i ... %5CCompute

Mind that the normals orientation is very important for the Poisson Reconstruction algorithm.
by daniel
Thu Mar 14, 2024 5:36 pm
Forum: Questions
Topic: Cloud and plane intersections
Replies: 3
Views: 159

Re: Cloud and plane intersections

Sorry, but I don't really understand how it can be simpler to generate a STL file from a laser scanner cloud :D (that's generally the opposite). Maybe you want to discuss that directly (in French) by sending an email to admin@cloudcompare.org. And if you can share data that may be useful also.
by daniel
Thu Mar 14, 2024 5:33 pm
Forum: Questions
Topic: tank analysis with ransac problem
Replies: 6
Views: 264

Re: tank analysis with ransac problem

Ah no, that's not possible at the moment.
by daniel
Thu Mar 14, 2024 5:33 pm
Forum: Questions
Topic: Point Cloud to Mesh with .e57 file?? Please Help
Replies: 2
Views: 100

Re: Point Cloud to Mesh with .e57 file?? Please Help

Maybe you can first start by sharing a snapshot of your point cloud? ;)

Or you can directly send me the cloud to admin@cloudcompare.org. So that we can tell you what's possible to do.
by daniel
Wed Mar 13, 2024 8:50 pm
Forum: Questions
Topic: tank analysis with ransac problem
Replies: 6
Views: 264

Re: tank analysis with ransac problem

This really looks like the Noise filter algorithm (the only difference being that the SOR algorithm will go through all points, one by one, instead of being random).

See https://www.cloudcompare.org/doc/wiki/i ... ise_filter
by daniel
Mon Mar 11, 2024 8:14 pm
Forum: Questions
Topic: Color From Scalar Field
Replies: 1
Views: 87

Re: Color From Scalar Field

So you should definitely set the Alpha component (= transparency) to a fix value (255). For the others, it all depend on what you were trying to achieve. Another option (maybe simpler) is to defined your own color scale with 'Edit > Scalar field > Color Scale Manager' (to define your own custom colo...