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FAQ: How is a tessellate relationship modelled with Topology Rules?

Question

How is a tessellate relationship modelled with Topology Rules?

Answer

Tessellate is a relationship between two polygon feature classes (FC1 and FC2) for which the following statements are true.

- Each feature in FC1 must be within a feature of FC2.
- FC2 must be covered by FC1.
- Features within FC1 cannot overlap.
- Features within FC2 cannot overlap.

There is no rule specifically designed for modelling tessellate relationships in the current list of supported rules. However, the relationship can be modelled by using a collection of 4 existing rules:

1) FC1 'must cover each other' FC2
2) FC2 'must be covered by' FC1
3) FC1 'must not overlap'
4) FC2 'must not overlap'