[GRASS-dev] Memory use in v.in.lidar for points with attributes

[Newcomb, Doug]

Hi Folks,
My goal is to import a LiDAR point cloud from an LAS file with 152 million
points.  I would like to use v.lidar.mcc to extract bare earth points from
the point cloud for generating a DEM  However, v.lidar.mcc requires that
the point layer have an attribute table rather than just the raw x,y,z
points without topography.

So using v.in.lidar, I am importing  the lidar points as normal points, and
the memory usage is steadily climbing.  Less than 1/4 of the points are
imported and memory usage is at 5GB . This on a Windows 7 64 bit system
with GRASS 7.2 svn

I'm suspecting this is not the expected behavior.

Doug

-- 
Doug Newcomb
USFWS
Raleigh, NC
919-856-4520 ext. 14 doug_newcomb at fws.gov
---------------------------------------------------------------------------------------------------------
The opinions I express are my own and are not representative of the
official policy of the U.S.Fish and Wildlife Service or Dept. of the
Interior.   Life is too short for undocumented, proprietary data formats.
As a federal employee, my email may be subject to FOIA request.
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