Reduce Point Cloud (3D)
Point Cloud Design Tool Bar
Use this command to reduce
the total number of points in a point cloud. The points can be created
by VX or imported from CMM
(Coordinate Measuring Machine) data. First select all of the points to
consider. Optionally, you can set the reduction tolerance, keep the original
points and create a point block for a more compact method of storing the
point data. See below for more information.
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Before (30,900 Points) |
After (16,375 Points) |
Tolerance
This command spatially sorts points and keeps only one point in each tolerance-sized region. If the tolerance is set to zero or left blank, then a guess is made at a reasonable tolerance. In a sample point file, a tolerance of 0.01 reduced the total number of points by 85% (from 17,697 to 2,761). However, fewer points mean less accuracy but greater system performance. For lower tolerances, use the Create point block option below.
Keep original point set
Check this box if you want to keep the original point cloud. Otherwise, all of the original points will be deleted.
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Create point block
Check this box to create a 3D point block of the reduced point cloud. This is a more compact form for storing point data. "Block" is listed as a Pick Filter list for move, erase, blank and inquire commands. A point block is not created for the original point cloud.
With a little preparation, you can use different layers to
help manage point cloud data before using this command. Using the 