2011

Table Of Contents
block definition containing geometric or dimensional constraints or a block
properties table but cannot add new parameters to the block definition.
When you work with constrained dynamic blocks in the Block Editor in
AutoCAD LT, you can modify the constraint values and delete constraints but
cannot add constraints in the Block Editor. You can manage the constraints
while in the Block Editor from the Parametric tab.
Modify 3D Point Clouds
While you cannot index or attach a point cloud in AutoCAD LT, you can open
drawings created in AutoCAD that contain point clouds. When an attached
point cloud file is unlocked, you can select the point cloud with a grip that is
displayed at the centroid of the point cloud.
NOTE You cannot explode a point cloud.
Quick Reference
System Variables
FIELDDISPLAY
Controls whether fields are displayed with a gray background.
PERSPECTIVE
Specifies whether the current viewport displays a perspective view.
POINTCLOUDAUTOUPDATE
Controls whether a point cloud is regenerated automatically after
manipulation, panning, zooming, or orbiting.
POINTCLOUDDENSITY
Controls the number of points displayed at once for all point clouds in the
drawing view.
POINTCLOUDRTDENSITY
Improves performance by degrading the number of points displayed in the
drawing view zooming, panning, or orbiting in real time.
1828 | Chapter 37 Work with Data in Other Formats