Search found 10 matches
- Wed May 06, 2020 4:48 pm
- Forum: Questions
- Topic: Convert image to point cloud?
- Replies: 1
- Views: 3570
Convert image to point cloud?
Hi there! I would like to generate mathematical art using CloudCompare. Can I send in an image file, for example black and white, and generate a cloud heightmap, preferably with a floor plane so that a poisson algo can generate a mesh from it? Thanks!
- Wed Feb 01, 2017 4:54 am
- Forum: Questions
- Topic: What is the Best PT-CD simplification algorythm?
- Replies: 1
- Views: 1808
What is the Best PT-CD simplification algorythm?
There are a lot of processes for point cloud simplifications. http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.10.9640&rep=rep1&type=pdf What is currently the best, state of the art, for those algorythms? It's a Spanish team from 2003, so there must by many more enhancements and adva...
- Wed Feb 01, 2017 4:43 am
- Forum: Requests, new functionalities
- Topic: planar simplification of grid subsample voxels?
- Replies: 1
- Views: 3740
Re: planar simplification of grid subsample voxels?
this is interesting: Boissonnat and Cazals [8] introduce a coarse-to-fine point cloud simplification approach. Their algorithm takes a random initial subset of the input point cloud and uses its 3D Delaunay triangulation to define a signed distance function over the set. This implicit function is th...
- Wed Jan 25, 2017 5:36 pm
- Forum: Questions
- Topic: Decimating a Mesh
- Replies: 7
- Views: 10416
Re: Decimating a Mesh
Meshlab has quadratic edge decimation which is very cool and free and some other decimation and point cloud filters, my fave is 3dsmax 2016 planar simplification.
- Sat Jan 21, 2017 10:18 am
- Forum: Requests, new functionalities
- Topic: planar simplification of grid subsample voxels?
- Replies: 1
- Views: 3740
planar simplification of grid subsample voxels?
Hey i'm near Gre too. General recommendation for an algorythm that is very useful for houses and any objects that have flat parts. Super efficient easy algorythm... sample grids or spheres comprising 10-50 vertices, measure if they are on the same plane, if they are almost exactly on the same plane,...
- Tue Jan 17, 2017 4:41 pm
- Forum: Requests, new functionalities
- Topic: Please how can i write SPHERICAL Cross Section Plugin?
- Replies: 3
- Views: 4517
Re: Please how can i write SPHERICAL Cross Section Plugin?
Hi Daniel, i found that Mehlab has selection of vertices by full mathematical formuli so spheres and things, perhaps you can steel their code for that, don't know if it's ok to steel from other open source projects but steeling is fine if it's in secret. see ya.
- Sun Jan 15, 2017 12:41 pm
- Forum: Questions
- Topic: select / delete points by color
- Replies: 11
- Views: 24526
Re: select / delete points by color
Hi, The option Edit>Colors>Convert to Scalar Field is greyed out and not selectable, it's for a RGB scalar field that was generated using Tools>Sandbox>Distance Map...
What is missing from the RGB distance map to let it be selectable by RGB values?
What is missing from the RGB distance map to let it be selectable by RGB values?
- Sat Jan 14, 2017 9:17 pm
- Forum: Requests, new functionalities
- Topic: Please how can i write SPHERICAL Cross Section Plugin?
- Replies: 3
- Views: 4517
Please how can i write SPHERICAL Cross Section Plugin?
I am rushing with some work and i want to write a program that deletes all points of cloud compare within a spherical radius, same as cross section, except that all points within a sphere are segmented to another group. It would be a good design tool for people that work with vases and similar, to b...
- Sat Jan 14, 2017 7:31 pm
- Forum: Requests, new functionalities
- Topic: Boolean operations with 3D meshes
- Replies: 6
- Views: 22270
Re: Boolean operations with 3D meshes
Hi all, thanks for all the incredible work invested in CloudCompare. I was suprised that the boolean operations code is only for mesh!!! It's a lot easier to do boolean when there are no triangles to thing about, that is the entire difficulty of CSG for spheres and simple objects. I expect that a CS...
- Sat Jan 14, 2017 6:58 pm
- Forum: Questions
- Topic: How to decimate a point cloud in Cloud Compare?
- Replies: 3
- Views: 11544
Re: How to decimate a point cloud in Cloud Compare?
Do the points get deleted based on distance? Do two close points get averaged?