TopologyBuilder Example

From Fmepedia

The attached workspace shows an example use of the TopologyBuilder transformer.

This example relates to this FME group question (http://finance.groups.yahoo.com/group/fme/message/12283).

A set of transport data consists of bus routes and stops. The idea is to measure the length between each stop. The problem is how to obtain the ID from each stop and attach it to that section of route. The answer is to use a PointOnAreaOverlayer followed by a TopologyBuilder. The TopologyBuilder creates a node ID for each stop, after which FeatureMergers are used to match the node ID for stops/routes and thereby obtain the stop ID.

Workspace Screenshot