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5

If you are trying to create a 2.5D digital terrain model (a height field) from a point cloud then there might be two possible problems. Multiple points in the cloud at the same location don't add any information to the data, so are dropped. Multiple points with the same XY location but different Z location (height) are inconsistent with the idea of a planar ...


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In short there is no such feature in lidR and there is no plan for such addition in a close future. las and laz file are read with LASlib which does not have the capability to stream a remote file. Thus lidR cannot do it. However it does not mean you can't find some partial workarounds. Download only the header of the files This is something I already made....


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I tried naively to use nearest neighbors to separate the ground and the trees. I iteratively set a point to be a tree, ground, or other type of point. A point is a tree or ground point if a percentage of the k=10 nearest neighbors are tree or ground points. The percentage decreases with each iteration. The initial guess of trees are points with intensity <...


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