Find points with a certain amount of neighbours

[Joseph_Oster]

These threads might be relevant?

Strategy for removing points inside PointCloud

I managed to get a “concave mesh” (white group) and perimeter boundary around the point cloud. I left out the Graph Mapper from the other model that causes the gradient effect and cull all the points within ‘edge_L’ distance from the perimeter. [CullInnerArea_pointcloud_2020May15a] CullInnerArea_pointcloud_2020May15a.gh (228.8 KB)

Delaunay mesh points/edges excluded

Cull faces with long edges. [delaunay_mesh_2021Jan9a] delaunay_mesh_2021Jan9a.gh (70.0 KB) P.S. Instead of culling faces based on perimeter length, you can use length of longest edge: [delaunay_mesh_2021Jan9b] delaunay_mesh_2021Jan9b.gh (73.3 KB)