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lastools

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  1. Hello from @lastools, please use the URL http://lastools.org/ to refer to LAStools from now on. To turn ASCII to LAS or SHP you can use txt2las.exe or las2shp.exe. But all LAStools can directly read TXT or SHP files via on-the-fly conversion to LAS. In terms of point classification and noise filtering one robust method first finds the ground, computes point heights, and then looks for points with weird (large negative or positive) outliers. The main LAStools for that task are lasground.exe or lasheight.exe (and while you are at it also look at lasclassify.exe). Cheers, Martin @lastools
  2. Hello, las2las from http://liblas.org has this functionality. for free. here is the tutorial page: http://liblas.org/utilities/las2las.html Martin - http://lastools.org
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