GeometryCollection
A single geometry that contains multiple geometries, which can be different types (Polygon, MultiPolygon, etc.).
Category: Geometry · Also known as: GEOMETRYCOLLECTION
Definition (expanded)
GeometryCollection is an OGC geometry type that wraps multiple geometries into one value. It is common in WKT exports when you want to represent several shapes as a single geometry. Some systems accept GeometryCollection. Others prefer MultiPolygon when everything is polygonal.
Related terms
WKT (Well-Known Text)A plain-text format for geometries (e.g., POLYGON, MULTIPOLYGON) widely used in GIS and spatial databases.WKB (Well-Known Binary)A compact binary format for geometries, widely used in spatial databases and APIs.PolygonA closed area geometry defined by an exterior ring and optional interior rings (holes).MultiPolygonA geometry containing multiple polygons (parts), each with its own exterior ring and optional holes.