in this thread a method is suggested for masking out point that lie in a convex hull for example: with which the set of masked points look like ...
in this thread a method is suggested for masking out point that lie in a convex hull for example: with which the set of masked points look like ...
I've been working with the R library alphahull for a few days now. As I'm trying to get the results as sf polygons, I'm following the recommandation h ...
I am quite a beginner to programming so I am sorry for my basic question. I installed PCL 11.1 via vcpkg manager a few weeks ago and now I have reali ...
I'm trying to find the surface of points cloud using the 3D alpha shape algorithm. When I calculate the circumradius, the determinant a is equal to ze ...
I have point cloud data of an area (x,y,z coordinates) The plot of X and Y looks like: I am trying to get polygons of different clusters in this dat ...
I'm looking for a python implementation for the Concave Hull problem. My problem is a bit different since I don't have a set of points, but a set of l ...
I have a quite specific task. I need to compute alpha shape of a set of points. (You can frolic with already implemented algorith there) The point is ...
I have an unordered set of 2D points which represents the corners of a building. I need to connect them to get the outline of the building. The point ...
I want to compute the alpha-shape (or even only the concave hull) of a set of points using Julia. In other questions they have solved this problem in ...
I am having a bit of a problem with an algorithm that I am currently using. I wanted it to make a boundary. Here is an example of the current behavi ...
I'm trying to find the complementary rotary "gear" shape to any input polygon shape. For example this polygon, is rotated around so that the complemen ...
The following code does not give me the result I expected. I expect to have all the points as the nodes of the polygon and the polygon contains all th ...
I have a set of points(clusters) in higher dimension (30d to 100d). I need to identify concave hull of these points in an efficient manner. Is there a ...
I want to detect the boundary of my set of points. I tried Delaunay triangulation from scipy spatial, but I get this: And when I perform alpha shape ...
So I am attempting to make complex polygons from a set of randomly generated vertices in 2D. I would like to allow concave polygons to exist, as well ...
I have a set of points in an example ASCII file showing a 2D image. I would like to estimate the total area that these points are filling. There are ...
I have a series of points in an area whose 'footprint' shape is highly irregular: I'd like to determine all of the coordinates within the footprint ...
The image attached is a mask of "walkable space" for a game, which is painted by the player, and so could be anything. I need to create colliders that ...
Is there a way to find out the number of continuous spatial lines in a SpatialLinesDataFrame ? EG this would be 2 (the outer one and the inner one) : ...
I am writing some 2D graphic software. And in my project i used Voronoi algorithm. And result is correct as I expected (Pic 1). Then i want to add som ...