Martin,
Can you suggest a workflow for lasboundary building extraction for a case where there are ~2,000 one square km laz tiles? I find that I have speed issues and memory errors trying to use the –merge option (20 billion points), and a lot of time consumption merging the polygons in a desktop GIS program if I don’t.
Current workflow is:
lasboundary -i *.laz ^
-keep_classification 6 ^
-concavity 1.5 ^
-disjoint ^
-odix "bldg" ^
-oshp ^
-cores ##
Running this on laz tiles that still have a 10% buffer so the building polygons overlap between tiles to aid in dissolving in a desktop GIS program.
If I add –merge, the multi-core processing breaks and I encounter memory allocation errors long before completion.
Is there a better way?
Wouldn’t it be more efficient if the –merge option attempted to merge the result files instead of the input las files?
Thank you,
Damon
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