Drawing Cleanup using MAP

Load the MAP 3D Workspace in Civil 3D 2006. From the modify menu, select “Drawing Cleanup.”

The Drawing Cleanup functionality offers an easy way to improve the accuracy of your maps, correct common map errors (resulting from surveying, digitizing, scanning errors, and so on), and remove unnecessary detail from complex maps. This functionality is essential when you need accurate and complete maps suitable for defining topologies, performing map analyses, or plotting and presentations.

With Drawing Cleanup, you can perform the following cleanup actions: delete duplicate objects, erase short objects, break crossing objects, extend undershoots, extend to apparent intersections, snap clustered nodes, dissolve pseudo nodes, erase dangling objects (overshoots), simplify objects, delete zero-length objects, and weed 3D polyline vertices.

It’s not unusual to cut an enormous file in half by issuing a Cleanup. I use the following options (in order) to clean ‘most’ drawings containing an enormous ammount of GIS data:

Zero Length objects
Simplify objects
Extend undershoots
Break crossing objects
Erase dangling objects
Snap clustered nodes

Consult the Help files for more information on using the powerful Cleanup commands.

Cheers!