2011

Using LiDAR Data to Create a Point Cloud Data Store
Once you have brought your LiDAR data into the
Point Cloud Manager (page
1897), you are ready to create a point cloud data store. A point cloud data store
is an index file (.ISD) that AutoCAD Map 3D refers to when it creates point
cloud objects. These index files can be very large, up to ten times as large as
their LAS source files. AutoCAD Map 3D may take a long time to generate
these index files, and you must ensure that you have sufficient disk space to
store them.
NOTE You can also create a point cloud index file using AutoCAD commands.
Point cloud index files created using AutoCAD commands have the .PCG file
extension. For information on creating point cloud index files using AutoCAD
commands, see the AutoCAD Help.
See also:
■
Overview of Point Clouds (page 1012)
■ Overview of LiDAR Data (page 1012)
■ Overview of Point Cloud Files and Objects (page 1013)
■ Bringing in LiDAR Data (page 374)
■ Creating Surfaces From Point Cloud Data (page 1021)
■ Managing LiDAR Data (page 1015)
■ Filtering Point Cloud Data (page 1024)
■ Exporting Point Cloud Data (page 1451)
To create a point cloud data store
1 In the Point Cloud Manager (page 1897), select the source file or merge
group for which you want to create a point cloud data store.
2 Check the Output field to confirm the file name and save location of
your index file.
3 Click Generate Index.
4 To cancel the indexing process, click Cancel Processing.
Using LiDAR Data to Create a Point Cloud Data Store | 1019