The Export Lidar LAS command can be
accessed through Export
Vector Format...Select Export
Format submenu. This export option allows the user to export any
loaded 3D vector data sets (like 3D point clouds loaded from other LAS
files) to new Lidar LAS format files. If the source data came from a LiDAR
format file, like a LAS, MrSid or LiDAR file the attributes from the original
data will be maintained.
When selected, the command displays the
Lidar LAS/LAZ Export Options dialog which allows the user to setup
the export.
The LAS Options tab is used to specify the Elevation Units, Filter Lidar
points, and to set the Vertical Coordinate System and flight date to be
stored in the export's Header field and Header formatting options. Save Color Value for Each Point From Points or Raster Layers will color each point by overlapping point or raster data. Use Save Height Above Ground Instead of Elevation to calculate the height of Lidar points relative to the ground, and save as the elevation values.
Use the Filter Output by Elevation/Class/Color
to filter Lidar points upon export.
The Tilingtab in the Lidar/LAZ Export Options contains options forsetting
up the tile spacing and vertical units, a Gridding panel, and the Export Bounds panel allows the
user to set up the portion of the loaded data they wish to export.
For other (non-Lidar) points being exported to a LAS/LAZ format, in addition
to the base position and elevation, if there is an INTENSITY attribute
available for the point, the value of that attribute will be exported
as the intensity for the point in the exported LAS file.
If you choose the Lidar LAS option then a compressed LASzip (LAZ) file
will be created. This offers lossless compression for Lidar data that
makes your Lidar files much smaller.
Export Bounds will allow the user
to specify export boundaries for the Lidar data by corner coordinate values,
a drawn box, the Military Grid Reference System, or the data may be cropped
to a selected feature.
This option will be available with Batch Conversion exports if you have imagery loaded before you do the batch conversion and choose to create a Lidar LAS or LAZ file from vector data. (This option requires a Lidar Module license.)