2011

Step 3: Specifying How to Convert Objects After Cleanup
As you clean up a map, you can specify how to treat the original objects after
the cleanup operation is complete.
■ Modify Original Objects — Uses the original layer and as much of the
original data as possible. For example, linear objects are extended where
necessary.
■ Retain Original And Create New Objects — Keeps the original objects and
creates new objects on a layer you specify. For example, to extend an
undershoot, new linear objects are created on the specified layer for the
undershoot and target linear objects, and the originals are retained.
■ Delete Original And Create New Objects — Deletes all the original objects
and creates new objects on a layer you specify. For example, the original
undershoot is deleted, and a new linear object is created that extends to
the required location.
NOTE This functionality is for drawing objects only. There is no equivalent for
geospatial feature data.
NOTE When you create new objects, existing object data and database links are
copied to the new objects. All created objects are assigned the current value of
the ELEVATION system variable.
Converting Objects to Polylines
You can specify whether to convert lines, arcs, and 3D polylines to 2D
polylines, and convert circles to arcs or 2D polylines. If you convert arcs to
polylines, the polyline is created using a true arc, not a set of straight line
segments. If you convert a circle to a polyline, the polyline is created using
two true arcs, not a set of straight line segments. Use these conversion options
in the following cases:
■ You plan to use the results of the drawing cleanup operation in another
program that accepts only polylines.
■ You want to modify the line width of the arcs, circles, or lines so you can
use them in a thematic map. You can assign line width only to polylines.
NOTE If you convert objects to different entity types during the cleanup process,
classified objects may be modified so that they no longer meet the object class
definition and will be unclassified.
Cleaning Up Drawing Data | 775