2011

This illustration shows a polygon topology. You can create polygons for each polygon
in the polygon topology, which is useful when exporting to other formats.
This illustration shows lakes as part of a state topology. To create a polygon for the
state with "holes" in it for the lakes, select the Group Complex Polygons option.
Converting Polygon Topology with Nested Boundaries
When you have nested polygons in your topology, you have several options
on how to convert them.
If you select the Group Complex Polygons option and all the polygons have
centroids, AutoCAD Map 3D will create a single balanced polygon.
If you do not select the Group Complex Polygons option, AutoCAD Map 3D
will create separate polygons, one for each centroid.
To create a single polygon from polygons nested within each other, each
nested polygon must have a centroid. For example, if you have three polygons
nested one within another, and the middle polygon does not have a centroid,
AutoCAD Map 3D will create separate polygons for the inner polygon and the
outer polygon.
Working with Polygon Objects | 973