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Example: Finding Voids

In this example, we create a topology rule to find holes between existing polygons.

A hole is considered to be a face that does not contain any reference to polygons.

An example topology of faces

Face 3 has no polygon within it, so is considered a hole

When you define topology rules, you include the classes used to build topology, and the pre-defined topological primitives in the system data store.

The Use Schema setting should be selected in the Context tab to list the classes of external data stores and the pre-defined topological primitives in the 1Integrate data store.

A rule to check for holes in polygons