| forum.alglib.net http://forum.alglib.net/ |
|
| 3D Point Cloud KNN with ALGLIB kd-tree? http://forum.alglib.net/viewtopic.php?f=2&t=1043 |
Page 1 of 1 |
| Author: | toejama1 [ Tue Nov 05, 2013 5:26 pm ] |
| Post subject: | 3D Point Cloud KNN with ALGLIB kd-tree? |
Hi Can you run a 3D KNN with ALGLIB's KD-TREE? / is there an example I saw many with real_2d_array but did not see explicit support for real_3d_array is 3D point not generally supported? |
|
| Author: | Sergey.Bochkanov [ Tue Nov 05, 2013 8:10 pm ] |
| Post subject: | Re: 3D Point Cloud KNN with ALGLIB kd-tree? |
You don't need real_3d_array to work with 3D point cloud. It can be stored in 2D array as follows: 2D: Quote: x0 y0 x1 y1 x2 y2 ... 3D: Quote: x0 y0 z0
x1 y1 z1 x2 y2 z2 ... |
|
| Author: | ltv [ Mon Mar 24, 2014 9:27 am ] |
| Post subject: | Re: 3D Point Cloud KNN with ALGLIB kd-tree? |
Hi Sergey, I'm trying the same thing with my 3D cloud points in Delphi but could not figuring out how to make the KDTree work. Could you give me a concrete example of creating a KDTree from a 3D points cloud and search the neighbor points from a given X, Y, Z coordinate and a search radius R ? Kind regards, Vu |
|
| Page 1 of 1 | All times are UTC |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|