Comments and answers for "How to use NeighborFinder when pointcloud(*.las) is Candidate?" https://knowledge.亚搏在线safe.com/questions/93718/how-to-use-neighborfinder-when-pointcloudlas-is-ca.html The latest comments and answers for the question "How to use NeighborFinder when pointcloud(*.las) is Candidate?" Comment by bobo on bobo's answer https://knowledge.safe.com/comments/93815/view.html

Thank you, got it work.How silly am I, I thought that Clipper can only used for vector or raster files.

 Thu, 13 Jun 2019 14:40:36 GMT bobo Comment by bobo on bobo's comment https://knowledge.safe.com/comments/93814/view.html

Yeah, the points in the shp file are 2D, I only need to find the nearest point in the las file at projection position.But since you brought it up, is there a transformer could perform like NeighborFinder in 3D?

 Thu, 13 Jun 2019 14:38:37 GMT bobo Comment by danatsafe https://knowledge.safe.com/comments/93765/view.html

@boboKeep in mind that the NeighborFinder returns distances in only 2D.

 Thu, 13 Jun 2019 04:50:48 GMT danatsafe Answer by erik_jan https://knowledge.safe.com/answers/93729/view.html

If you have a limited amount of points in the shape file, you could buffer them using a Bufferer and then clip the pointcloud using the Clipper.

This will limit the pointcloud data to only use those points near a shape point.

Then use your approach with the PointCloudCoercer and NeighborFinder to find the exact closest point.

Hope this helps.

 Wed, 12 Jun 2019 15:51:25 GMT erik_jan