2011

Table Of Contents
6 Click Finish to perform the Overlay.
The Overlay operation creates a new layer representing the result of the
comparison. The new layer is displayed in the map and in Display
Manager. The same data is written to the SDF file you specified.
To see just the Overlay output, deselect the check boxes for the other
layers in Display Manager.
Quick Reference
MAPGISOVERLAY
Performs overlay analysis of feature classes
Click Analyze menu GIS Overlay.
Menu
Icon
MAPGISOVERLAYCommand Line
Analyzing Drawing Topologies
Topologies are defined by a set of drawing objects and their relationships.
(Features are not included in topologies.)
After you create a topology in a drawing, you can analyze it to get useful
information about the spatial relationships between drawing objects.
Overview of Analyzing Drawing Topologies (page 1319)
Performing a Shortest Path Trace (page 1324)
Performing a Best Route Analysis (page 1328)
Performing a Flood Trace (page 1333)
Overlaying Two Topologies (page 1336)
Dissolving a Composite Topology (page 1342)
Buffering a Topology (page 1345)
Querying a Topology (page 1348)
Saving a Temporary Topology (page 1354)
Before you can use the topology analysis tools, you must create a topology
and make sure it is loaded.
1318 | Chapter 8 Analyzing Data