2011

Quick Reference
MAPANTOPONET
Traces through a network topology (shortest path, best route, or flood trace)
Click Map ➤ Topology ➤ Network Analysis.
Menu
Network Analyze
Icon
MAPANTOPONETCommand Line
In Map Explorer, right-click a network
topology ➤ Analysis ➤ Network Analysis
Task Pane
Network Topology Analysis - Select Method dialog
box
Dialog Box
Performing a Best Route Analysis
Using a network topology, which is made up of drawing objects and their
relationship data, you can calculate the best route from a starting point in the
drawing, to one or more visit points, and back to the starting point. AutoCAD
Map 3D determines the optimal route based on values of resistance and
direction. For example, in a street network, you can find the best route to
travel when visiting several customer sites from your hotel.
If a path has a total resistance lower than the Minimum Resistance value, the
path is ignored. Similarly, if a path has a total resistance greater than the
Maximum Resistance value, the path is ignored.
Using SQL Data in Expressions
If you specify an expression that uses SQL data, the Link Template list includes
only link templates defined in the drawing where the topology is loaded —
in the source drawing, if you loaded the topology from source drawings; in
the current drawing, if you loaded the topology from the current drawing.
Also, be sure that the appropriate data source is attached and connected in
the current drawing.
Travel Time in Network Topologies
To carry out a best route analysis on a road network based on time rather than
distance,
assign a speed or speed limit to each link (page 849) using an object
1328 | Chapter 8 Analyzing Data