pdal translate -i ept://http://act-2015-rgb.s3.amazonaws.com ^
 -o ./exercises/analysis/meshing/building-exercise.ply ^
 range poisson ^
 --filters.range.limits="Classification[2:2],Classification[6:6]" ^
 --filters.poisson.depth=16 ^
 --readers.ept.bounds="([692738, 692967], [6092255,6092562])" ^
 --verbose 4