Hole (Interior Ring)
An interior ring inside a polygon that subtracts area (a cut-out).
Category: Geometry
Definition (expanded)
A hole is an interior ring that defines an excluded region inside the exterior boundary. Holes must lie completely inside the exterior ring and must not intersect each other or the exterior boundary for many validity rules.
Related terms
PolygonA closed area geometry defined by an exterior ring and optional interior rings (holes).Ring (Linear Ring)A closed sequence of coordinates used as a polygon boundary (exterior) or hole (interior).Valid geometryA geometry that follows topological rules (closed rings, no self-intersections, properly nested holes, etc.).