2011

AutoCAD Map 3D uses this resistance when doing a shortest path trace, best
route analysis, or flood trace. For an example of using resistance to show travel
times, see
Performing a Flood Trace (page 1333).
You can also specify the Resistance of a node in a network topology, such as
setting resistance for a valve in a pipe network, or a junction in a road network.
See also:
■
Loading or Unloading Topologies (page 906)
■ Adding a Link (page 880)
■ To delete a link, node, or polygon (page 889)
■ Specifying the Direction for a Link (page 845)
■ Specifying the Resistance for a Link or Node (page 849)
■ Performing a Shortest Path Trace (page 1324)
■ Performing a Best Route Analysis (page 1328)
■ Performing a Flood Trace (page 1333)
NOTE This procedure is for drawing objects only. There is no equivalent for
geospatial feature data.
To edit the resistance of a link or node in a network topology
1 Verify that the network topology containing the link or node is loaded.
Be sure to load the topology from the current drawing. You can specify
resistance for network topologies only.
2 In the map, double-click the link or node.
If more than one topology contains the same link or node, select one of
the topologies.
Update the other topologies (page 891) later.
3 In the Properties palette, under the group of Topo properties, enter new
values for resistance. You must enter a numeric value.
■ For a node, enter a value for Resistance, which is the resistance to
cross the node.
■ For a link, enter values for Direct Resistance and Reverse Resistance.
Direct resistance is the resistance to travel in the direction that a link
was created, while reverse resistance is the resistance in the opposite
direction along a link. The default value is the length of the link.
Creating, Editing, and Managing Topologies | 875