Some feature classes commonly managed in a shared topologyData theme |
Feature classes |
Subsample of topology rules |
Parcels |
Parcel polygons
Parcel boundaries (lines)
Parcel corners (points) |
Parcel polygons must not overlap.
Parcel polygon boundaries must be covered by parcel boundary lines.
Parcel boundary endpoints must be covered by parcel corner points. |
Street centerlines and census units |
Street centerlines
Census blocks
Census block groups
Census tracts |
Street lines must not intersect or touch interior.
Census blocks must not overlap.
Census block groups must be covered by census blocks.
Census block groups must not overlap.
Census tracts must be covered by census block groups.
Census tracts must not overlap. |
Soils |
Soil type polygons |
Soil polygons must not overlap.
Soil polygons must not have gaps.
|
Hydrology |
Hydro lines
Hydro points
Watersheds (polygons) |
Hydro lines must not self-overlap.
Hydro points must be covered by hydro lines.
Watersheds must not overlap.
Watersheds must not have gaps. |