within
States that the subject SpatialObject is spatially within the object SpatialObject. DE-9IM: T*F**F***
Geometry Collection
A collection of individual Geometries.
disjoint
States that the subject SpatialObject is spatially disjoint from the object SpatialObject. DE-9IM: FF*FF****
GeoJSON Literal
A GeoJSON serialization of a Geometry object.
equals
States that the subject SpatialObject spatially equals the object SpatialObject. DE-9IM: TFFFTFFFT
touches
States that the subject SpatialObject spatially touches the object SpatialObject. DE-9IM: FT******* ^ F**T***** ^ F***T****
covered by
States that the subject SpatialObject is spatially covered by the object SpatialObject. DE-9IM: TFF*TFT**
A collection of individual Features.
Feature Collection
meet
States that the subject SpatialObject spatially meets the object SpatialObject. DE-9IM: FT******* ^ F**T***** ^ F***T****
has volume
The volume of a three-dimensional Spatial Object.
has area
The area of a Spatial Object.
1.1.1 - 2026-02 - minor metadata changes to ensure Rainbow display 1.1 - version as originally published with GeoSPARQL 1.1
An RDF/OWL vocabulary for representing spatial information
as GeoJSON
The GeoJSON serialization of a Geometry
A spatial representation for a given Feature.
has geometry
This datatype is not expected to be used directly but to serve as an abstract datatype for a series of specific DGGS literal types, for specific DGGS implementations
DGGS Literal
"<https://w3id.org/dggs/auspix> OrdinateList (R3234)"^^<http://www.opengis.net/ont/geosparql#dggsLiteral>
A textual serialization of a Discrete Global Grid (DGGS) Geometry object.
has spatial resolution
Spatial resolution specifies the level of detail of a Geometry. It the smallest distinguishable distance between spatially adjacent coordinates.
The spatial resolution of a Geometry.
has length
The length of a Spatial Object.
dimension
The topological dimension of this geometric object, which must be less than or equal to the coordinate dimension. In non-homogeneous collections, this will return the largest topological dimension of the contained objects.
has spatial accuracy
Spatial accuracy is applicable when a Geometry is used to represent a Feature. It is expressed as a distance that indicates the truthfullness of the positions (coordinates) that define the Geometry. In this case accuracy defines a zone surrounding each coordinate within wich the real positions are known to be. The accuracy value defines this zone as a distance from the coordinate(s) in all directions (e.g. a line, a circle or a sphere, depending on spatial dimension).
The positional accuracy of the coordinates of a Geometry.
has length in meters
The length of a Spatial Object in meters.
covers
States that the subject SpatialObject spatially covers the object SpatialObject. DE-9IM: T*TFT*FF*
has metric size
Subproperties of this property are used to indicate the size of a Spatial Object, as a measurement or estimate of one or more dimensions of the Spatial Object's spatial presence. Units are always metric (meter, square meter or cubic meter).
Spatial Object
Subclasses of this class are expected to be used for instance data.
Anything spatial (being or having a shape, position or an extent).
has spatial resolution in meters
Spatial resolution specifies the level of detail of a Geometry. It the smallest dinstinguishable distance between spatially adjacent coordinates.
The spatial resolution of a Geometry in meters.
has area in square meters
The area of a Spatial Object in square meters.
is empty
(true) if this geometric object is the empty Geometry. If true, then this geometric object represents the empty point set for the coordinate space.
has serialization
Connects a Geometry object with its text-based serialization.
inside
States that the subject SpatialObject is spatially inside the object SpatialObject. DE-9IM: TFF*FFT**
has perimeter length
The length of the perimeter of a Spatial Object.
overlap
States that the subject SpatialObject spatially overlaps the object SpatialObject. DE-9IM: T*T***T**
externally connected
States that the subject SpatialObject spatially meets the object SpatialObject. DE-9IM: FFTFTTTTT
The target Geometry shall describe a point, for example an instance of http://www.opengis.net/ont/sf#Point.
has centroid
The arithmetic mean position of all the Geometry points of a given Feature.
has perimeter length in meters
The length of the perimeter of a Spatial Object in meters.
coordinate dimension
The number of measurements or axes needed to describe the position of this Geometry in a coordinate system.
tangential proper part inverse
States that the subject SpatialObject spatially covers the object SpatialObject. DE-9IM: TTTFTTFFT
intersects
States that the subject SpatialObject is not spatially disjoint from the object SpatialObject. DE-9IM: T******** ^ *T******* ^ ***T***** ^ ****T****
The WKT serialization of a Geometry
as WKT
is simple
(true) if this geometric object has no anomalous geometric points, such as self intersection or self tangency.
has size
The recommended way to specify size is by using a subproperty of hasMetricSize. Subproperties of hasSize can be used if more complex expressions are necessary, for example if the unit of length can not be converted to meter, or if additional data are needed to describe the measurement or estimate.
Subproperties of this property are used to indicate the size of a Spatial Object as a measurement or estimate of one or more dimensions of the Spatial Object's spatial presence.
has spatial accuracy in meters
The positional accuracy of the coordinates of a Geometry in meters.
KML Literal
A KML serialization of a Geometry object.
non-tangential proper part inverse
States that the subject SpatialObject spatially contains the object SpatialObject. DE-9IM: TTTFFTFFT
The target is a Geometry that defines a rectilinear region whose edges are aligned with the axes of the coordinate reference system, which exactly contains the Feature, for example an instance of http://www.opengis.net/ont/sf#envelope.
has bounding box
The minimum or smallest bounding or enclosing box of a given Feature.
tangential proper part
States that the subject SpatialObject is spatially covered by the object SpatialObject. DE-9IM: TFFTTFTTT
contains
States that the subject SpatialObject spatially contains the object SpatialObject. DE-9IM: T*TFF*FF*
crosses
States that the subject SpatialObject spatially crosses the object SpatialObject. DE-9IM: T*T******
overlaps
This is the superclass of Feature Collection and Geometry Collection.
A collection of individual Spatial Objects.
Spatial Object Collection
as GML
The GML serialization of a Geometry
has volume in cubic meters
The volume of a Spatial Object in cubic meters.
States that the subject SpatialObject spatially contains the object SpatialObject. DE-9IM: T*****FF*
partially overlapping
States that the subject SpatialObject spatially overlaps the object SpatialObject. DE-9IM: TTTTTTTTT
disconnected
States that the subject SpatialObject is spatially disjoint from the object SpatialObject. DE-9IM: FFTFFTTTT
has default geometry
Duplicate properties defaultGeometry and hasDefaultGeometry exist because of an inconsistency between ontology and documentation in GeoSPARQL 1.0. Only hasDefaultGeometry is described in the documention.
The default Geometry to be used in spatial calculations. It is usually the most detailed Geometry.
spatial dimension
The number of measurements or axes needed to describe the spatial position of this Geometry in a coordinate system.
as DGGS
The Discrete Global Grid System (DGGS) serialization of a Geometry
A coherent set of direct positions in space. The positions are held within a Spatial Reference System (SRS).
Geometry can be used as a representation of the shape, extent or location of a Feature and may exist as a self-contained entity.
Geometry
A discrete spatial phenomenon in a universe of discourse.
A Feature represents a uniquely identifiable phenomenon, for example a river or an apple. While such phenomena (and therefore the Features used to represent them) are bounded, their boundaries may be crisp (e.g., the declared boundaries of a state), vague (e.g., the delineation of a valley versus its neighboring mountains), and change with time (e.g., a storm front). While discrete in nature, Features may be created from continuous observations, such as an isochrone that determines the region that can be reached by ambulance within 5 minutes.
Feature
as KML
The KML serialization of a Geometry
GML Literal
A GML serialization of a Geometry object.
default geometry
Well-known Text Literal
A Well-known Text serialization of a Geometry object.
non-tangential proper part
States that the subject SpatialObject is spatially inside the object SpatialObject. DE-9IM: TFFTFFTTT