Step 2: Setting Cleanup Options
Concept Procedure Quick Reference

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 actions.

Cleanup Actions

You can perform the following cleanup actions:

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 Setting

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 the error.

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 or street.

See Also