As you clean up a map,
you select one or more cleanup actions to perform. Each cleanup
action detects a different type of map error, for example, duplicate
objects, undershoots, or zero-length objects.
For best results, run Simplify
Objects and Weed Polylines individually.
Run other cleanup actions individually or with a minimum of other
You can perform the following
Order of Cleanup Actions
The order of cleanup
actions can produce different results. Specify the order by moving
cleanup actions up or down in the list. The action at the top of the
list is performed first.
Setting Cleanup Options
Set the options for each
cleanup action individually. For more information, see the individual
help topics about each cleanup action.
Understanding the Tolerance
Tolerance is the minimum
distance allowed between linear objects or nodes. If two linear
objects or nodes are separated by a distance less than the tolerance, AutoCAD Map 3D corrects
Tolerance sets the
distance within which each cleanup action is used; in this case, the
two road segments are within the tolerance, so one is deleted. Move
your cursor over the image to see the changes.
If you set the tolerance
too low, AutoCAD Map 3D might miss some errors. If you set the tolerance
too high, AutoCAD Map 3D might correct linear objects that are not errors.
Decide if the data constitutes an error and choose a suitable tolerance
to eliminate errors.
For example, a tolerance
of 10 would eliminate dangles less than 10 meters long; but in some
cases, such dangles might be the correct mapping of a short pipe