# Questions tagged [point-cloud]

A Point cloud represents a set of data points in space, generally produced by 3D scanners, and used in CAD models, metrology, animation, etc.

16 questions
13 views

### Cutting 3D Point cloud and interpolate between points

I have the following data https://www.mediafire.com/file/f8tz1zbpxvyvko7/Waltersdorf_F3.csv/file Which is a 3D point cloud. I can visualize it correctly, but I want to do Cuts like the ones in the ...
18 views

### Transforming point cloud into a coordinate system

I have unknown point clouds that I need to find the rotation angle or the transformation matrix that align that point cloud into X-Z plane. picture Note that there are bears(columns) that can be used ...
16 views

### Find radius of best fit cylinder from cloud

I want to find the radius of the cylinder that best fits a cloud of points. I used 3DReshaper to calculate the radius of the best fit cylinder for this points (format: x y z): ...
26 views

### Direction vector of tube/cylinder from point cloud

I have a bunch of points that lay on a surface on a cylinder/tube. How can I calculate the properties of this tube (radius and direction)? The only way I can come up with is to assume find the ...
231 views

### Points inside a 3D rectangle [duplicate]

my task is to find, and mark, all the points from a point cloud that are inside a 3D rectangle. I have the coordinates of all the 8 vertices. Is there a mathematical formula which I can use? To be ...
44 views

### matrix to transform set of point to another set of points

I would like to start by saying that I'm not an expert mathematician, neither an expert in English and that's why I have so much problems at present. What I'm trying to do is to generate 2 matrix R ...
53 views

### Object segmentation in PCL

Sorry because I am not sure if this question fits here. I am new working in object recognition and localisation. I am using PCL to capture a model of an object and localise it. It works well. I ...