lasinfo

Author:Howard Butler
Contact:hobu.inc@gmail.com
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    lasinfo (libLAS 1.6.0b2 with GeoTIFF 1.3.0 GDAL 1.8dev)
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lasinfo options:
  -h [ --help ]         produce help message
  -i [ --input ] arg    input LAS file
  -v [ --verbose ]      Verbose message output
  --no-vlrs             Don't show VLRs
  --no-schema           Don't show schema
  --no-check            Don't scan points
  --xml                 Output as XML
  -p [ --point ] arg    Display a point with a given id.  --point 44

Filtering options:
  -e [ --extent ] arg    Extent window that points must fall within to keep.
                         Use a comma-separated or quoted, space-separated list,
                         for example,
                          -e minx, miny, maxx, maxy
                          or
                          -e minx, miny, minz, maxx, maxy, maxz
                          -e "minx miny minz maxx maxy maxz"
  --minx arg             Extent must be greater than or equal to minx to be
                         kept.
                          --minx 1234.0
  --miny arg             Extent must be greater than or equal to miny to be
                         kept.
                          --miny 5678.0
  --minz arg             Extent must be greater than or equal to minz to be
                         kept. If maxx and maxy are set but not minz *and maxz,
                         all z values are kept.
                          --minz 0.0
  --maxx arg             Extent must be less than or equal to maxx to be kept.
                          --maxx 1234.0
  --maxy arg             Extent must be less than or equal to maxy to be kept.
                          --maxy 5678.0
  --maxz arg             Extent must be less than or equal to maxz to be kept.
                         If maxx and maxy are set but not maxz *and minz, all z
                         values are kept.
                          --maxz 10.0
  -t [ --thin ] arg (=0) Simple decimation-style thinning.
                         Thin the file by removing every t'th point from the
                         file.
  --last_return_only     Keep last returns (cannot be used with
                         --first_return_only)
  --first_return_only    Keep first returns (cannot be used with
                         --last_return_only
  --keep-returns arg     A list of return numbers to keep in the output file:
                         --keep-returns 1 2 3
  --drop-returns arg     Return numbers to drop.
                         For example, --drop-returns 2 3 4 5
  --valid_only           Keep only valid points
  --keep-classes arg     A list of classifications to keep:
                         --keep-classes 2 4 12
                         --keep-classes 2
  --drop-classes arg     A comma-separated list of classifications to drop:
                         --drop-classes 1,7,8
                         --drop-classes 2
  --keep-intensity arg   Range in which to keep intensity.
                         The following expression types are supported:
                         --keep-intensity 0-100
                         --keep-intensity <200
                         --keep-intensity >400
                         --keep-intensity >=200
  --drop-intensity arg   Range in which to drop intensity.
                         The following expression types are supported:
                         --drop-intensity <200
                         --drop-intensity >400
                         --drop-intensity >=200
  --keep-time arg        Range in which to keep time.
                         The following expression types are supported:
                         --keep-time 413665.2336-414092.8462
                         --keep-time <414094.8462
                         --keep-time >413665.2336
                         --keep-time >=413665.2336
  --drop-time arg        Range in which to drop time.
                         The following expression types are supported:
                         --drop-time <413666.2336
                         --drop-time >413665.2336
                         --drop-time >=413665.2336
  --keep-scan-angle arg  Range in which to keep scan angle.
                         The following expression types are supported:
                         --keep-scan-angle 0-100
                         --keep-scan-angle <100
                         --keep-scan-angle <=100
  --drop-scan-angle arg  Range in which to drop scan angle.
                         The following expression types are supported:
                         --drop-scan-angle <30
                         --drop-scan-angle >100
                         --drop-scan-angle >=100
  --keep-color arg       Range in which to keep colors.
                         Define colors as two 3-tuples (R,G,B-R,G,B):
                         --keep-color '0,0,0-125,125,125'
  --drop-color arg       Range in which to drop colors.
                         Define colors as two 3-tuples (R,G,B-R,G,B):
                         --drop-color '255,255,255-65536,65536,65536'

For more information, see the full documentation for lasinfo at:
 http://liblas.org/utilities/lasinfo.html
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Example data

Visit the libLAS sample library for LiDAR data in LAS format:

http://liblas.org/samples/