2011

■ Expression Evaluator (page 1541)
■
Expression dialog box (page 1807)
To perform a shortest path trace
1 Verify that you have a network topology available and it is loaded. See
Creating Topologies (page 821) and To load a topology (page 907).
2 In
Map Explorer (page 2068), under Current Drawing, right-click a network
topology ➤ Analysis ➤ Network Analysis.
3 In the
Network Topology Analysis - Select Method dialog box (page 1983),
click Shortest Path. Click Next.
4 In the Network Topology Analysis - Choose Locations dialog box, click
Start Point, and then click
(Select Point) to select the starting point
in the map. Press Enter to return to the dialog box.
AutoCAD Map 3D uses the node closest to the location you clicked as
the start point. The coordinates of the point are shown in the list.
5 Click End Point. To select the ending point, click
(Select Point). Press
Enter to return to the dialog box.
AutoCAD Map 3D uses the node closest to the location you clicked as
the end point.
6 Review the start and end points you have specified. The coordinates of
the points are shown in the list.
■ To double-check the location of a point in the map, highlight the
coordinates in the list. Click Preview.
■ To delete a point so that you can define a new one, highlight the
coordinates in the list. Click Delete.
7 Click Next.
8 In the Network Topology Analysis - Resistance and Direction dialog box,
select limits to put on the trace. For resistance and direction, you can
enter a constant or an expression that references an object data field or
1326 | Chapter 8 Analyzing Data