AutoCAD Map 3D: Drawing Cleanup Strategies

Drawing cleanup is not a single operation in which you remove all errors in the drawing. Depending on the number and type of errors, drawing cleanup is an interactive process in which you clean certain errors and then repeat the process to clean additional errors.

The reason for cleaning a drawing can influence how you approach the cleanup. For example, if you intend to use the drawing for a street network topology, then crossing objects can be tolerated and may even be desirable. However, if you intend to use the drawing to produce a polygon topology, crossing objects cannot be tolerated. You also need to consider any object data or SQL links that are attached to objects in the drawing. Using incorrect methods of cleanup may destroy these links.