Upstream / Downstream Network Trace
The Upstream Network Trace and Downstream Network Trace tools allow you to trace from any node or pipe in the network to
the upstream / downstream extents of the network. The trace assumes that
the network connectivity (pipe direction) is correct. The tool simply
traces all possible upstream / downstream paths from the selected starting
point. If the trace stops before reaching the extent of the network, then
- The next pipe may be reversed. You can use
the Link Reversing Tool (
) of the Selection toolbar to correct the direction. See Reversing Selected Pipes. - The pipe where the trace stops may not be connected.
To carry out a trace:
- Click on the
(for upstream trace)
on the More GeoPlan Tools Toolbar or the 
(for downstream trace) button on the GeoPlan Tools Toolbar, or select Tracing tools | Downstream trace mode or Tracing tools | Upstream trace mode from the GeoPlan menu. - Click on any node or pipe. If there is more than possible path from a node, you will be asked choose which link you want to trace the extends of.
Alternatively, select a link on the GeoPlan, right-click to display the context menu, and then select the Trace upstream or Trace downstream option from the selected object's menu choices.
Tip When using a trace tool, you can carry out a trace in the opposite direction by clicking the button and then holding down the ctrl key while clicking on a node or pipe. For example, the combination of the upstream trace tool and the CTRL key will result in a downstream trace being performed.
