An RDF/OWL vocabulary for representing spatial information
A GML serialization of a Geometry object.
GML Literal
A Well-known Text serialization of a Geometry object.
Well-known Text Literal
A GeoJSON serialization of a Geometry object.
GeoJSON Literal
A KML serialization of a Geometry object.
KML Literal
A textual serialization of a Discrete Global Grid (DGGS) Geometry object.
"<https://w3id.org/dggs/auspix> OrdinateList (R3234)"^^<http://www.opengis.net/ont/geosparql#dggsLiteral>
DGGS Literal
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
The default Geometry to be used in spatial calculations. It is usually the most detailed 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.
default geometry
has default geometry
States that the subject SpatialObject spatially contains the object SpatialObject. DE-9IM: T*TFF*FF*
contains
States that the subject SpatialObject is spatially covered by the object SpatialObject. DE-9IM: TFF*TFT**
covered by
States that the subject SpatialObject spatially covers the object SpatialObject. DE-9IM: T*TFT*FF*
covers
States that the subject SpatialObject is spatially disjoint from the object SpatialObject. DE-9IM: FF*FF****
disjoint
States that the subject SpatialObject spatially equals the object SpatialObject. DE-9IM: TFFFTFFFT
equals
States that the subject SpatialObject is spatially inside the object SpatialObject. DE-9IM: TFF*FFT**
inside
States that the subject SpatialObject spatially meets the object SpatialObject. DE-9IM: FT******* ^ F**T***** ^ F***T****
meet
States that the subject SpatialObject spatially overlaps the object SpatialObject. DE-9IM: T*T***T**
overlap
A spatial representation for a given Feature.
has geometry
The minimum or smallest bounding or enclosing box of a given Feature.
has bounding box
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.
The arithmetic mean position of all the Geometry points of a given Feature.
has centroid
The target Geometry shall describe a point, for example an instance of http://www.opengis.net/ont/sf#Point.
The length of a Spatial Object.
has length
The length of the perimeter of a Spatial Object.
has perimeter length
The area of a Spatial Object.
has area
The volume of a three-dimensional Spatial Object.
has volume
The spatial resolution of a Geometry.
Spatial resolution specifies the level of detail of a Geometry. It the smallest distinguishable distance between spatially adjacent coordinates.
has spatial resolution
The positional accuracy of the coordinates of a Geometry.
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).
has spatial accuracy
States that the subject SpatialObject is spatially disjoint from the object SpatialObject. DE-9IM: FFTFFTTTT
disconnected
States that the subject SpatialObject spatially meets the object SpatialObject. DE-9IM: FFTFTTTTT
externally connected
States that the subject SpatialObject is spatially inside the object SpatialObject. DE-9IM: TFFTFFTTT
non-tangential proper part
States that the subject SpatialObject spatially contains the object SpatialObject. DE-9IM: TTTFFTFFT
non-tangential proper part inverse
States that the subject SpatialObject spatially overlaps the object SpatialObject. DE-9IM: TTTTTTTTT
partially overlapping
States that the subject SpatialObject is spatially covered by the object SpatialObject. DE-9IM: TFFTTFTTT
tangential proper part
States that the subject SpatialObject spatially covers the object SpatialObject. DE-9IM: TTTFTTFFT
tangential proper part inverse
States that the subject SpatialObject spatially contains the object SpatialObject. DE-9IM: T*****FF*
States that the subject SpatialObject spatially crosses the object SpatialObject. DE-9IM: T*T******
crosses
States that the subject SpatialObject is not spatially disjoint from the object SpatialObject. DE-9IM: T******** ^ *T******* ^ ***T***** ^ ****T****
intersects
overlaps
States that the subject SpatialObject spatially touches the object SpatialObject. DE-9IM: FT******* ^ F**T***** ^ F***T****
touches
States that the subject SpatialObject is spatially within the object SpatialObject. DE-9IM: T*F**F***
within
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.
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.
has size
The GML serialization of a Geometry
as GML
The WKT serialization of a Geometry
as WKT
The GeoJSON serialization of a Geometry
as GeoJSON
The KML serialization of a Geometry
as KML
The Discrete Global Grid System (DGGS) serialization of a Geometry
as DGGS
The number of measurements or axes needed to describe the position of this Geometry in a coordinate system.
coordinate 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.
dimension
Connects a Geometry object with its text-based serialization.
has serialization
(true) if this geometric object is the empty Geometry. If true, then this geometric object represents the empty point set for the coordinate space.
is empty
(true) if this geometric object has no anomalous geometric points, such as self intersection or self tangency.
is simple
The number of measurements or axes needed to describe the spatial position of this Geometry in a coordinate system.
spatial dimension
The spatial resolution of a Geometry in meters.
Spatial resolution specifies the level of detail of a Geometry. It the smallest dinstinguishable distance between spatially adjacent coordinates.
has spatial resolution in meters
The positional accuracy of the coordinates of a Geometry in meters.
has spatial accuracy in meters
The length of a Spatial Object in meters.
has length in meters
The length of the perimeter of a Spatial Object in meters.
has perimeter length in meters
The area of a Spatial Object in square meters.
has area in square meters
The volume of a Spatial Object in cubic meters.
has volume in cubic meters
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).
has metric size
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
Feature Collection
A collection of individual Features.
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 collection of individual Geometries.
Geometry Collection
Anything spatial (being or having a shape, position or an extent).
Subclasses of this class are expected to be used for instance data.
Spatial Object
Spatial Object Collection
A collection of individual Spatial Objects.
This is the superclass of Feature Collection and Geometry Collection.