
This document establishes the OGC CRS ontology and its submodules. The definition of elements of coordinate reference systems is an essential part of geospatial data provision. However, until now, coordinate reference systems and their components could not be represented in an OGC-standardized semantic web vocabulary. This document introduces the ontology model, its classes and properties, application examples and can serve as the foundation of a semantic web based coordinate system registry at OGC. Special attention is given to the compatibility of the CRS Ontology vocabulary to other OGC-endorsed Semantic Web standards such as GeoSPARQL and alignments to other data standards are provided as part of this specification.
Insert Preface Text here. Give OGC specific commentary: describe the technical content, reason for document, history of the document and precursors, and plans for future work.
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If the Preface does not contain subclauses, it is considered a simple preface clause. This one is entered as text after the
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<Insert Abstract Text here>
No security considerations have been made for this Standard.
All questions regarding this submission should be directed to the editor or the submitters:
Name | Affiliation | OGC member |
---|---|---|
Luís Moreira de Sousa |
Instituto Superior Técnico: Lisbon, PT |
Yes |
Timo Homburg |
Mainz University Of Applied Sciences |
No |
Nathalie Abadie |
IGN France |
Yes |
Ghislain Atemezing |
European Union Agency for Railways (ERA) |
Yes |
Additional contributors to this Standard include the following:
Individual name(s), Organization
If you need to place any further sections in the preface area
use the |
<Insert Scope text here>
Give the subject of the document and the aspects of that scope covered by the document. |
<Insert conformance content here>
Provide a short description of the content approached in subsequent sections and the main subject of the document |
The following normative documents contain provisions that, through reference in this text, constitute provisions of this document. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. For undated references, the latest edition of the normative document referred to applies.
If there are no references, leave this section empty.
References are to follow the Springer LNCS style, with the exception that optional information may be appended to references: DOIs are added after the date and web resource references may include an access date at the end of the reference in parentheses. See examples from Springer and OGC below. |
[], Identification of Common Molecular Subsequences. Smith, T.F., Waterman, M.S., J. Mol. Biol. 147, 195–197 (1981)
[], ZIB Structure Prediction Pipeline: Composing a Complex Biological Workflow through Web Services. May, P., Ehrlich, H.C., Steinke, T. In: Nagel, W.E., Walter, W.V., Lehner, W. (eds.) Euro-Par 2006. LNCS, vol. 4128, pp. 1148–1158. Springer, Heidelberg (2006)
[], The Grid: Blueprint for a New Computing Infrastructure., Foster, I., Kesselman, C.. Morgan Kaufmann, San Francisco (1999).
[], Grid Information Services for Distributed Resource Sharing. Czajkowski, K., Fitzgerald, S., Foster, I., Kesselman, C. In: 10th IEEE International Symposium on High Performance Distributed Computing, pp. 181–184. IEEE Press, New York (2001)
term used for exemplary purposes
An example note. |
This section provides details and examples for any conventions used in the document. Examples of conventions are symbols, abbreviations, use of XML schema, or special notes regarding how to read the document. |
The normative provisions in this standard are denoted by the URI
http://www.opengis.net/spec/{standard}/{m.n}
All requirements and conformance tests that appear in this document are denoted by partial URIs which are relative to this base.
<Place any other convention needed with its corresponding title>
This clause establishes the Core Requirements class, with IRI /req/core
, which has a corresponding Conformance Class, Core, with IRI /conf/core
.
The Core module establishes a set of classes and properties which define the building blocks of a spatial reference system definition. Some of the definitions are extended in specialized modules related to the Core module.
From a base class SpatialReferenceSystem, we define a class for a coordinate system, as the superclass of all spatial reference systems describing locations using coorindates. These SpatialReferenceSystems are described using a Datum and a coordinate system definitions with at least one coordinate axis. Together with several subtypes of coordnate reference system, these definitions complete the Core module.
URI |
|
Definition |
Area within which a coordinate operation may be used. |
Example |
URI |
|
Definition |
Geographic area or time interval in which the referring object is valid. Cf. ISO 19115-1:2014:2014-04, part 6.6.1 and table B.15 line 335. |
URI |
|
Definition |
Frame delimiting an area of interest. See ISO 19115-1:2014:2014-04, part 6.6.1 and table B.15.1 line 344. |
URI |
|
Definition |
Ordered list of coordinate system axes. |
URI |
|
Definition |
Ordered list of simple reference coordinate systems. |
URI |
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Type |
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Definition |
The geodetic coordinate reference system on which a projected coordinate reference system is based. Cf. ISO 19111:2007:2007-07, table 11, association role baseCRS. |
Range |
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Domain |
URI |
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Type |
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Definition |
The conversion used to define a projected coordinate reference system. Cf. ISO 19111:2007:2007-07, table 7, named association Definition. |
Range |
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Domain |
URI |
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Type |
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Definition |
The property relates a coordinate reference system to its coordinate system |
Range |
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Domain |
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Example |
URI |
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Type |
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Definition |
The property relates a coordinate reference system to a datum |
Range |
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Domain |
URI |
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Type |
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Definition |
Indicates a single CRS referring to a collection of one or more datums (Datum Ensemble) |
Range |
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Domain |
URI |
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Type |
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Definition |
Geographic area or time interval in which the referring object is valid. Cf. ISO 19111:2007:2007-07, tables 4, 33 and 42, attribute domainOfValidity. |
Range |
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Domain |
URI |
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Type |
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Range |
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Domain |
URI |
geocrs:asProj4 |
Type |
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Definition |
PROJ4 string defining a CRS. Note: this paradigm is ambiguous and presently considered outdated. |
Range |
|
Domain |
URI |
geocrs:asProjJSON |
Type |
|
Definition |
CRS definition encoded as a JSON object interpretable by PROJ4. |
Range |
|
Domain |
URI |
geocrs:asWKT |
Type |
|
Definition |
CRS definition encoded according to the Well Known Text structure. Cf. ISO 19162:2019. |
Range |
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Domain |
URI |
|
Type |
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Definition |
Identifier of this resource in the EPSG Geodetic Parameter Dataset. |
Range |
Coordinate reference systems are typed according to their area of application, e.g. Geodetic vs. Engineering vs. TemporalCRS and by their ability to contain further
URI |
|
Super-classes |
URI |
|
Definition |
Coordinate reference system using at least two independent single coordinate reference systems. Cf. ISO 19111:2007:2007-07, parts 8.2.3.c, 8.2.4, table 6 and annex B.1.2.4. |
Super-classes |
|
Example |
URI |
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Definition |
Depending on the spatial dimension of coordinates (1D, 2D, 3D), this piece of metadata is used for specifying the elements of definition associated to a given set of coordinates: its datum, its ellipsoid, its prime meridian, the type of coordinates (geocentric, geographic, projected,…), the coordinates units of measure, when appropriate the cartographic projection used, the vertical coordinate reference system. |
Super-classes |
URI |
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Definition |
A contextually local coordinate reference system which can be divided into two broad categories: - earth-fixed systems applied to engineering activities on or near the surface of the earth; - CRSs on moving platforms such as road vehicles, vessels, aircraft or spacecraft. |
Super-classes |
URI |
|
Definition |
A cartesian coordinate reference system that represents locations in the vicinity of the Earth (including its surface, interior, atmosphere, and surrounding outer space) as X, Y, and Z measurements from its center of mass. Commonly used to track the orbits of satellites. |
Super-classes |
|
Example |
URI |
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Definition |
Coordinate Reference System associated with a geodetic datum. Cf. ISO 19111:2007:2007-07, part 8.2.2.a, table 10 and annex B.1.2.1.a. |
Super-classes |
URI |
|
Definition |
Coordinate Reference System that has a geodetic reference frame and an ellipsoidal coordinate system |
Super-classes |
|
Example |
URI |
|
Definition |
Coordinate Reference System based on a parametric datum |
Super-classes |
URI |
|
Definition |
Coordinate Reference System derived from a two-dimensional geodetic coordinate reference system by applying a map projection. Cf. ISO 19111:2007:2007-07, part 8.2.3.b, table 11 and annex B.1.2.3. |
Super-classes |
|
Example |
URI |
|
Definition |
Coordinate Reference System to refer locations on the surface of the Earth’s Moon. |
Super-classes |
URI |
|
Definition |
An abstract coordinate system, whose origin, orientation and scale are specified in physical space. It is based on a set of reference points, defined as geometric points whose position is identified physically and mathematically. |
URI |
|
Definition |
Coordinate reference system consisting of one coordinate system and one datum. Cf. ISO 19111:2007:2007-07, table 5. |
Super-classes |
URI |
|
Definition |
A spatial reference system (SRS) is a system for establishing spatial position. A spatial reference system can use geographic identifiers (place names, for example), coordinates (in which case it is a coordinate reference system), or identifiers with structured geometry (in which case it is a discrete global grid system). |
Super-classes |
URI |
|
Definition |
A spatio-parametric coordinate reference system is a compound CRS in which one component is a geographic 2D, projected 2D or engineering 2D CRS, supplemented by a parametric CRS to create a three-dimensional CRS |
Super-classes |
URI |
https://w3id.org/geosrs/srs/SpatioParametricTemporalCompoundCRS |
Definition |
Coordinate reference system combining a spatio-parametric reference system with at least one temporal reference system |
Super-classes |
URI |
|
Definition |
Coordinate reference system combining a spatial reference system with at least one temporal reference system |
Super-classes |
URI |
|
Definition |
Coordinate Reference System that has a static reference frame |
Super-classes |
URI |
|
Definition |
Coordinate Reference System based on a temporal datum |
Super-classes |
URI |
|
Definition |
One-dimensional coordinate reference system associated with a vertical datum and used for recording heights or depths.Ellipsoidal heights are not captured in a vertical coordinate reference system but as part of a 3D coordinates tuple defined in a geodetic 3D coordinate reference system. Cf. ISO 19111:2007:2007-07, parts 8.2.2.b, table 14 and annex B.1.2.1.b. |
Super-classes |
|
Example |
This clause establishes the Co Requirements class, with IRI /req/co
, which has a corresponding Conformance Class, Co, with IRI /conf/co
.
URI |
|
Definition |
Identifier of a geographic feature of which the coordinates are used as operation parameters. |
Super-classes |
iso19107:Geometry[iso19107:Geometry] |
URI |
|
Definition |
Operations supported in the Coordinate Operations package. |
URI |
|
Definition |
Scale transformation operation |
Super-classes |
URI |
|
Definition |
Rotation transformation operation |
Super-classes |
URI |
|
Definition |
Identity transformation operation |
Super-classes |
URI |
|
Definition |
Shear transformation operation |
Super-classes |
URI |
|
Definition |
Translation transformation operation |
Super-classes |
URI |
|
Definition |
Affine coordinate transformation operation |
Super-classes |
URI |
geocrs:CoordinateTransformationOperation[] |
Definition |
Coordinate operation in which the two coordinate reference systems are based on different datums. |
Super-classes |
URI |
|
Definition |
Specification of a subset of coordinate tuples that is subject to a coordinate operation |
Super-classes |
URI |
|
Definition |
Ordered sequence of two or more single coordinate operations. Note: The sequence of coordinate operations is constrained by the requirement that the source coordinate reference system of step (n + 1) shall be the same as the target coordinate reference system of step (n). The source coordinate reference system of the first step and the target coordinate reference system of the last step are the source and target coordinate reference system associated with the concatenated coordinate operation. For a concatenated coordinate operation sequence of n coordinate operations: source CRS (concatenated coordinate operation) .eq. source CRS (coordinate operation step 1) target CRS (coordinate operation step i) .eq. source CRS (coordinate operation step i + 1); i .eq. 1 …(n - 1) target CRS (concatenated coordinate operation) .eq. target CRS (coordinate operation step n) Instead of a forward coordinate operation, an inverse coordinate operation may be used for one or more of the coordinate operation steps mentioned above, if the inverse coordinate operation is uniquely defined by the forward coordinate operation method. |
Super-classes |
URI |
|
Definition |
Mathematical operation that decribes the change of coordinate values within one coordinate reference system due to the motion of the point between one coordinate epoch and another coordinate epoch Note: In this document the motion is due to tectonic plate movement or deformation. |
Super-classes |
URI |
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Definition |
Definition of a group of related parameters used by a coordinate operation method. |
Super-classes |
URI |
|
Definition |
Group of related parameter values. Note: The same group can be repeated more than once in a coordinate operation or higher level ParameterValueGroup, if those instances contain different values of one or more ParameterValues which suitably distinguish among those groups. |
Super-classes |
URI |
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Type |
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Definition |
Relates a derived CRS to a conversion |
Range |
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Domain |
URI |
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Type |
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Definition |
Value of the datum-defining parameter |
Range |
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Domain |
URI |
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Type |
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Definition |
The coordinate reference system associated to the data used as input of a given operation. Cf. ISO 19111:2007:2007-07, table 42, named association Source. |
Range |
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Domain |
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Example |
URI |
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Type |
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Definition |
The coordinate reference system associated to the data obtained as output of a given operation. Cf. ISO 19111:2007:2007-07, table 42, named association Target. |
Range |
|
Domain |
This clause establishes the CS Requirements class, with IRI /req/cs
, which has a corresponding Conformance Class, CS, with IRI /conf/cs
.
The coordinate system module introduces different types of coordinate systems which are dinstinguished in geospatial science and applications. Coordinate systems are distinguished by their area of use, i.e planetary or interstellar and by their multidimensionality.
The class geosrs:3DCoordinateSystem describes a coordinate system in three dimesions. These coordinate systems are common for 3D representations or 2D representations with a time aspect.
URI |
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Definition |
Non-repeating sequence of coordinate system axes that spans a given coordinate space in three dimensions |
Super-classes |
|
Example |
URI |
|
Definition |
A conical coordinate system is a three-dimensional orthogonal coordinate system consisting of concentric spheres (described by their radius r) and by two families of perpendicular cones, aligned along the z- and x-axes, respectively |
Super-classes |
URI |
|
Definition |
Three-dimensional coordinate system in Euclidean space in which position is specified by two linear coordinates and one angular coordinate |
Super-classes |
URI |
|
Definition |
A coordinate system for specifying positions of celestial objects relative to physical reference points |
Super-classes |
URI |
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Definition |
An ecliptic coordinate system is used for representing the apparent positions and orbits of solar system objects. |
Super-classes |
URI |
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Definition |
A celestial coordinate system in which an object’s position on the celestial sphere is described in terms of its north-south declination and east-west right ascension, measured relative to the celestial equator and vernal equinox, respectively. |
Super-classes |
URI |
|
Definition |
A coordinate system with the Sun as its center, the primary direction aligned with the approximate center of the Milky Way Galaxy, and the fundamental plane parallel to an approximation of the galactic plane but offset to its north. |
Super-classes |
URI |
|
Definition |
A horizontal coordinate system is a celestial coordinate system that uses the observer’s local horizon as the fundamental plane. |
Super-classes |
URI |
|
Definition |
A frame of reference centered at the focus of the orbit, i.e. the celestial body about which the orbit is centered. |
Super-classes |
URI |
|
Definition |
A reference frame for the supercluster of galaxies that contains the Milky Way galaxy, referenced to a local relatively flat collection of galaxy clusters used to define the supergalactic plane. |
Super-classes |
URI |
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Type |
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Definition |
The property relates a coordinate system to one of its axis |
Range |
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Domain |
URI |
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Type |
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Definition |
The direction of an axis. Cf. ISO 19111:2007:2007-07, table 27, attribute coordinate system axis direction. |
Range |
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Domain |
|
Example |
URI |
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Definition |
Coordinate system in Euclidean space with straight axes that are not necessarily mutually perpendicular |
Super-classes |
URI |
|
Definition |
A coordinate system in which the location of a point is specified by reference to a simplex (a triangle for points in a plane, a tetrahedron for points in three-dimensional space, etc.) |
Super-classes |
URI |
|
Definition |
A coordinate system for the Euclidean space in which the coordinate lines may be curved |
Super-classes |
URI |
|
Definition |
Coordinate system used by an engineering coordinate reference system, one of an affine coordinate system, a Cartesian coordinate system, a cylindrical coordinate system, a linear coordinate sytem, an ordinal coordinate system, a polar coordinate system or a spherical coordinate system |
Super-classes |
URI |
|
Definition |
Coordinate system used by a Geodetic CRS, one of a Cartesian coordinate system or a spherical coordinate system. |
Super-classes |
URI |
|
Definition |
Spherical or geodetic coordinate system for measuring and communicating positions directly on Earth as latitude and longitude. |
Super-classes |
URI |
|
Definition |
A grid coordinate system identifies areas within a grid. |
Super-classes |
URI |
|
Definition |
A hexagonal coordinate system identifies areas within a hexagonal lattice. |
Super-classes |
URI |
|
Definition |
Coordinate system with a point of local reference. |
Super-classes |
URI |
|
Definition |
A plane coordinate system whose axes are not perpendicular. |
Super-classes |
URI |
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Definition |
A orthogonal coordinate system is a system of curvilinear coordinates in which each family of surfaces intersects the others at right angles. |
Super-classes |
URI |
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Definition |
A two-dimensional measurement system that locates features on a plane based on their distance from an origin (0,0) along two perpendicular axes. |
Super-classes |
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Example |
The class geosrs:1DCoordinateSystem describes a coordinate system with only one dimension. Often, these definitions include temporal coordinate systems which only represent time using one coordinate system axis.
URI |
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Definition |
Non-repeating sequence of coordinate system axes that spans a given coordinate space in one dimension |
Super-classes |
URI |
|
Definition |
One-dimensional coordinate system used to record time in dateTime representation as defined in ISO 8601. |
Super-classes |
URI |
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Definition |
One-dimensional coordinate system used to record time as an integer count. |
Super-classes |
URI |
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Definition |
One-dimensionalcoordinate system where the axis is time. |
Super-classes |
URI |
|
Definition |
One-dimensional coordinate system used to record a time as a real number. |
Super-classes |
This clause establishes the Datum Requirements class, with IRI /req/datum
, which has a corresponding Conformance Class, Datum, with IRI /conf/datum
.
URI |
|
Definition |
Parameter value, an ordered sequence of values, or a reference to a file of parameter values that define a paramtric datum. Cf. ISO 19111:2019 Geographic information — Referencing by coordinates. |
URI |
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Type |
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Definition |
Parameter used to define the parametric datum |
Range |
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Domain |
URI |
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Type |
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Definition |
The properties relates a datum to its ellipsoid definition |
Range |
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Domain |
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Example |
URI |
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Type |
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Definition |
The prime meridian used by a geodetic datum. Cf. ISO 19111:2007:2007-07, table 34, association role primeMeridian. |
Range |
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Domain |
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Example |
URI |
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Definition |
Geodetic reference frame in which some of the parameters describe time evolution of defining station coordinatesExample: defining station coordinates having linear velocities to account for crustal motion. |
Super-classes |
URI |
|
Definition |
Vertical reference frame in which some of the defining parameters have time dependencyExample: Defining station heights have velocity to account for post-glacial isostatic rebound motion. Cf. ISO 19111:2019 Geographic information — Referencing by coordinates. |
Super-classes |
|
Example |
URI |
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Definition |
Textual description and/or a set of parameters identifying a particular reference surface used as the origin of a parametric coordinate system, including its position with respect to the Earth. Cf. ISO 19111:2019 Geographic information — Referencing by coordinates. |
Super-classes |
URI |
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Definition |
Definition of the origin and orientation of an engineering coordinate reference systemNote: The origin can be fixed with respect to the Earth (such as a defined point at a construction site), or be a defined point on a moving vehicle (such as on a ship or satellite), or a defined point of an image. Cf. ISO 19111:2019 Geographic information — Referencing by coordinates. |
Super-classes |
URI |
|
Definition |
Definition of the relationship of a temporal coordinate system to an objectNote: The object is normally time on the Earth. Cf. ISO 19111:2019 Geographic information — Referencing by coordinates. |
Super-classes |
URI |
|
Definition |
A collection of two or more datums (or if geodetic or vertical, a collection of two or more reference frames) that are realizations of one Conventional Reference System and which for all but the highest accuracy requirements may be considered to be insignificantly different from each other. Note: Within the datum ensemble every frame or datum is constrained to be a realization of the same reference system. Cf. ISO 19111:2019 Geographic information — Referencing by coordinates. |
URI |
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Type |
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Definition |
A measure of how much an ellipse deviates from a perfect circle. |
Range |
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Domain |
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Example |
URI |
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Type |
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Definition |
Indicates the inverse flattening value of an ellipsoid, expressed as a number or a ratio (percentage rate, parts per million, etc.). Cf. ISO 19111:2007:2007-07, table 37, attribute inverse flattening |
Range |
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Domain |
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Example |
URI |
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Type |
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Definition |
Indicates whether the ellipsoid is a sphere. Cf. ISO 19111:2007:2007-07, table 37, attribute ellipsoid=sphere indicator. |
Range |
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Domain |
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Example |
URI |
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Type |
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Definition |
Indicates the length of the semi major axis of an ellipsoid. Cf. ISO 19111:2007:2007-07, table 36, attribute length of semi-major axis. |
Range |
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Domain |
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Example |
URI |
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Type |
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Definition |
Indicates the length of the semi minor axis of an ellipsoid. Cf. ISO 19111:2007:2007-07, table 37, attribute length of semi-minor axis. |
Range |
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Domain |
|
Example |
URI |
|
Definition |
Surface of an analytic ellipsoid defined by three axes of different length. Also referred as scalene ellipsoid. |
This clause establishes the SRSAPP Requirements class, with IRI /req/srsapp
, which has a corresponding Conformance Class, SRSAPP, with IRI /conf/srsapp
.
URI |
|
Definition |
A map displaying a cadastre. |
Super-classes |
|
Example |
URI |
|
Definition |
A graphic representation of a sea area and adjacent coastal regions. |
Super-classes |
URI |
|
Definition |
A map used to highlight a specific phenomenon. |
Super-classes |
URI |
|
Definition |
A type of map characterized by large-scale detail and quantitative representation of relief. |
Super-classes |
|
Example |
URI |
|
Definition |
A map for showing the local direction in which weather systems are moving. |
Super-classes |
URI |
|
Definition |
An application for which a spatial reference system is used. |
URI |
|
Super-classes |
URI |
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Super-classes |
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Example |
URI |
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Super-classes |
URI |
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Super-classes |
URI |
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Super-classes |
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Example |
URI |
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Super-classes |
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Example |
URI |
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Super-classes |
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Example |
URI |
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Super-classes |
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Example |
URI |
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Super-classes |
This clause establishes the PROJ Requirements class, with IRI /req/proj
, which has a corresponding Conformance Class, PROJ, with IRI /conf/proj
.
URI |
URI |
|
Super-classes |
URI |
URI |
https://w3id.org/geosrs/projection/BreusingGeometricProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/BreusingHarmonicProjection |
Super-classes |
URI |
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Super-classes |
URI |
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Super-classes |
URI |
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Super-classes |
URI |
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Super-classes |
URI |
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Super-classes |
URI |
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Super-classes |
URI |
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Super-classes |
URI |
https://w3id.org/geosrs/projection/ChamberlinTrimetricProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/DenoyerSemiEllipticalProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/SpilhausOceanicProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/VanDerGrintenIIIProjection |
Super-classes |
URI |
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Super-classes |
URI |
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Super-classes |
URI |
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Super-classes |
URI |
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Super-classes |
URI |
https://w3id.org/geosrs/projection/AdamsWorldInASquareIIProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/AdamsWorldInASquareIProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/AugustEpicycloidalProjection |
Definition |
A projection in which every angle between two curves that crosss each other on a celestical body is preserved in the image of the projection |
Super-classes |
URI |
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Super-classes |
URI |
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Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/PeirceQuincuncialProjection |
Super-classes |
URI |
|
Super-classes |
|
Example |
URI |
https://w3id.org/geosrs/projection/BipolarObliqueConicConformalProjection |
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/HerschelConformalConicProjection |
Super-classes |
URI |
|
Super-classes |
|
Example |
URI |
https://w3id.org/geosrs/projection/LambertConformalConicProjection |
Super-classes |
URI |
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Super-classes |
URI |
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Super-classes |
URI |
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Super-classes |
URI |
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Super-classes |
URI |
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Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/BSAMCylindricalProjection |
Super-classes |
URI |
|
Definition |
A cylindrical equal-area projection that uses a standard parallel of phi_s=50 degrees |
Super-classes |
URI |
|
Definition |
A cylindrical equal-area map projection with standard parallels set at 30° north and south |
Super-classes |
URI |
https://w3id.org/geosrs/projection/BraunPerspectiveProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/BraunStereographicProjection |
Super-classes |
URI |
|
Super-classes |
URI |
URI |
https://w3id.org/geosrs/projection/CylindricalStereographicProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/KarchenkoShabanovaProjection |
Super-classes |
URI |
|
Super-classes |
|
Example |
URI |
|
Super-classes |
|
Example |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/PattersonCylindricalProjection |
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/ToblerCylindricalIIProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/ToblerCylindricalIProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/TransverseMercatorProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/AlbersEqualAreaProjection |
Super-classes |
|
Example |
URI |
https://w3id.org/geosrs/projection/AzimuthalEqualAreaProjection |
Super-classes |
URI |
|
Super-classes |
|
Example |
URI |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/LambertAzimuthalEqualArea |
Super-classes |
URI |
https://w3id.org/geosrs/projection/LambertCylindricalEqualAreaProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/ObliqueCylindricalEqualAreaProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/SlideAndDiceParallelSmallCircle |
Definition |
The Parallel Small Circle version of the equa-area projection method defined for polyhedral globes by van Leeuwen and Strebe. van Leeuwen, D., & Strebe, D. (2006). A “Slice-and-Dice” Approach to Area Equivalence in Polyhedral Map Projections. Cartography and Geographic Information Science, 33(4), 269–286. |
Super-classes |
URI |
https://w3id.org/geosrs/projection/SliceAndDiceVertexGreatCircle |
Definition |
The Vertex-oriented Great Circle version of the equa-area projection method defined for polyhedral globes by van Leeuwen and Strebe. van Leeuwen, D., & Strebe, D. (2006). A “Slice-and-Dice” Approach to Area Equivalence in Polyhedral Map Projections. Cartography and Geographic Information Science, 33(4), 269–286. |
Super-classes |
URI |
https://w3id.org/geosrs/projection/SmythEqualSurfaceProjection |
Super-classes |
URI |
|
Definition |
Equal area projection for polyhedral globes, used frequently in Discrete Global Grid Systems. Snyder, J.P. (1992). "An Equal-Area Map Projection for Polyhedral Globes". Cartographica. 29 (1): 10–21 |
Super-classes |
URI |
https://w3id.org/geosrs/projection/ToblerWorldInASquareProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/TransverseCylindricalEqualAreaProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/AzimuthalEquidistantProjection |
Super-classes |
|
Example |
URI |
|
Super-classes |
URI |
|
Definition |
A map projection first described in an approximate form by César-François Cassini de Thury in 1745 |
Super-classes |
|
Example |
URI |
https://w3id.org/geosrs/projection/EquidistantConicProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/EquidistantCylindricalProjection |
Super-classes |
|
Example |
URI |
URI |
https://w3id.org/geosrs/projection/EquirectangularProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/ObliquePlateCarreeProjection |
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/TwoPointEquidistantProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/FournierGlobularIProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Definition |
An azimuthal minimum error projection for the region within the small or great circle defined by an angular distance, from the tangency point of the plane |
Super-classes |
|
Example |
URI |
https://w3id.org/geosrs/projection/CentralCylindricalProjection |
Super-classes |
|
Example |
URI |
https://w3id.org/geosrs/projection/GeneralVerticalPerspectiveProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/GilbertTwoWorldPerspectiveProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/PerspectiveConicProjection |
Super-classes |
URI |
URI |
https://w3id.org/geosrs/projection/TiltedPerspectiveProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/VerticalPerspectiveProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
URI |
https://w3id.org/geosrs/projection/RectangularPolyconicProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/StabiusWernerIIIProjection |
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/VanDerGrintenIIProjection |
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/VanDerGrintenIVProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/CollignonButterflyProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/GnomonicButterflyProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/GnomonicCubedSphereProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/GnomonicIcosahedronProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
URI |
https://w3id.org/geosrs/projection/QuadrilateralizedSphericalCubeProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/WatermanButterflyProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Definition |
A modified azimuthal projection whose graticule takes the form of an ellipse |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/PseudoAzimuthalProjection |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/AmericanPolyconicProjection |
Super-classes |
|
Example |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/NicolosiGlobularProjection |
Super-classes |
URI |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/StabiusWernerIIProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Definition |
An equal-area pseudocylindrical projection that maps the sphere onto a triangle or diamond |
Super-classes |
URI |
https://w3id.org/geosrs/projection/CrasterParabolicProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/DeakinMinimumErrorProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
|
Example |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/FoucautSinusoidalProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/GoodeHomolosineProjection |
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/HatanoAsymmetricalEqualAreaProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/McBrydeThomasFlatPolarParabolicProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/McBrydeThomasFlatPolarQuarticProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/McBrydeThomasFlatPolarSinusoidalProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/McBrydeThomasIIProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Definition |
A pseudocylindrical map projection designed by Tom Patterson and introduced in 2008 |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/PseudoCylindricalProjection |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/QuarticAuthalicProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/ToblerHyperellipticalProjection |
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
|
Super-classes |
URI |
https://w3id.org/geosrs/projection/GallStereographicProjection |
Super-classes |
URI |
https://w3id.org/geosrs/projection/MillerOblatedStereographicProjection |
Super-classes |
URI |
|
Super-classes |
This clause establishes the PLANET Requirements class, with IRI /req/planet
, which has a corresponding Conformance Class, PLANET, with IRI /conf/planet
.
URI |
URI |
URI |
URI |
URI |
URI |
URI |
URI |
URI |
URI |
URI |
This clause establishes common instances which are needed in CRS specifications as Requirement class INSTANCES, with IRI /req/instances
, which has a corresponding Conformance Class, INSTANCES, with IRI /conf/instances
.
URI |
|
Type |
|
Definition |
Downwards axis direction |
URI |
|
Type |
|
Definition |
east axis direction |
URI |
|
Type |
|
Definition |
North axis direction |
URI |
|
Type |
|
Definition |
South axis direction |
URI |
|
Type |
|
Definition |
Up axis direction |
URI |
|
Type |
|
Definition |
West axis direction |
URI |
|
Type |
rdf:Datatype[rdf:Datatype] |
Definition |
A literal which stores a proj4 String |
Example |
URI |
|
Type |
rdf:Dataype[rdf:Dataype] |
Definition |
A literal which stores a projection JSON (ProjJSON) String |
Example |
URI |
|
Type |
rdf:Datatype[rdf:Datatype] |
Definition |
A literal which stores a WKT for CRS String |
Example |
URI |
|
Type |
|
Definition |
GRS 1980 Ellipsoid |
Example |
URI |
|
Type |
|
Definition |
GRS 67 Ellipsoid |
Example |
URI |
|
Type |
|
Definition |
PZ 90 Ellipsoid |
Example |
URI |
|
Type |
|
Definition |
Airy 1830 Ellipsoid |
Example |
URI |
|
Type |
|
Definition |
Airy 1849 Modified Ellipsoid |
Example |
URI |
|
Type |
|
Definition |
International 1924 Ellipsoid |
Example |
URI |
|
Type |
|
Definition |
Australian National Spheroid |
Example |
URI |
|
Type |
|
Definition |
Everest 1930 Spheroid |
URI |
|
Type |
|
Definition |
Clarke 1866 Spheroid |
Example |
URI |
|
Type |
|
Definition |
Plessis 1817 Spheroid |
Example |
URI |
|
Type |
|
Definition |
Danish 1876 Spheroid |
Example |
URI |
|
Type |
|
Definition |
Struve 1860 Spheroid |
Example |
URI |
|
Type |
|
Definition |
IAG 1975 Spheroid |
Example |
URI |
|
Type |
|
Definition |
Clarke 1858 Spheroid |
Example |
URI |
|
Type |
|
Definition |
Clarke 1880 Spheroid |
Example |
URI |
|
Type |
|
Definition |
Helmert 1906 Spheroid |
Example |
URI |
|
Type |
|
Definition |
CGCS2000 Spheroid |
Example |
URI |
|
Type |
|
Definition |
GSK-2011 Spheroid |
URI |
|
Type |
|
Definition |
Zach 1812 Spheroid |
Example |
URI |
|
Type |
|
Definition |
Clarke 1880 (Arc) Spheroid |
Example |
URI |
|
Type |
|
Definition |
Clarke 1880 (Ing) Spheroid |
Example |
URI |
|
Type |
|
Definition |
WGS 66 Spheroid |
URI |
|
Type |
|
Definition |
WGS 72 Spheroid |
Example |
URI |
|
Type |
|
Definition |
WGS 84 Spheroid |
Example |
URI |
|
Type |
|
Definition |
Krassowsky 1940 Spheroid |
Example |
This Annex lists tests for the Conformance Classes defined in the main body sections of this Specification with links to their Requirements and test purpose method and type. Conformance classes may be used to signify the compatibility of a given implementation to parts of the CRS Ontology standard. They may be stated as part of a SPARQL 1.1 Service Description [SPARQLSERVDESC] .
The prefixes used for the ontologies mapped to in all following sections are given in the following table.
ign: |
|
iso19111: |
http://def.isotc211.org/iso19112/2019/SpatialReferencingByGeographicIdentifier# |
geosrs: |
|
ifc: |
https://standards.buildingsmart.org/IFC/DEV/IFC4/ADD2_TC1/OWL/ |
owl: |
|
prov: |
|
rdf: |
|
rdfs: |
From Element | Mapping relation | To Element | Notes |
---|---|---|---|
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
From Element | Mapping relation | To Element | Notes |
---|---|---|---|
- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
From Element | Mapping relation | To Element | Notes |
---|---|---|---|
- |
|||
- |
|||
- |
|||
- |
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- |
|||
- |
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- |
From Element | Mapping relation | To Element | Notes |
---|---|---|---|
- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
From Element | Mapping relation | To Element | Notes |
---|---|---|---|
- |
|||
- |
|||
- |
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- |
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- |
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- |
|||
- |
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- |
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- |
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- |
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- |
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- |
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- |
From Element | Mapping relation | To Element | Notes |
---|---|---|---|
- |
|||
- |
|||
- |
|||
- |
|||
- |
|||
- |
|||
- |
From Element | Mapping relation | To Element | Notes |
---|---|---|---|
- |
|||
- |
|||
- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
From Element | Mapping relation | To Element | Notes |
---|---|---|---|
- |
|||
- |
|||
- |
|||
- |
|||
- |
|||
- |
|||
- |
|||
- |
|||
- |
|||
- |
|||
- |
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- |
|||
- |
From Element | Mapping relation | To Element | Notes |
---|---|---|---|
- |
|||
- |
|||
- |
|||
- |
|||
- |
|||
- |
|||
- |
From Element | Mapping relation | To Element | Notes |
---|---|---|---|
- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
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- |
From Element | Mapping relation | To Element | Notes |
---|---|---|---|
- |
|||
- |
|||
- |
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- |
|||
- |
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- |
|||
- |
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- |
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- |
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- |
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- |
|||
- |
|||
- |
From Element | Mapping relation | To Element | Notes |
---|---|---|---|
- |
|||
- |
|||
- |
|||
- |
|||
- |
|||
- |
|||
- |
This section introduces SHACL shapes which can be used to verify graphs encoded using the vocabulary defined in this specification.
SHACL shapes in this specification are subdivided by the same module designations as used previously. In order to verify a graph a single validation file of SHACL shapes is provided alongside this specification.
Label | TargetNode | Property | Class | MinCount | MaxCount | Comment |
---|---|---|---|---|---|---|
Shape S1 |
geosrs:CRS |
geosrs:coordinateSystem |
geosrs:CoordinateSystem |
1 |
1 |
A coordinate reference system should have exactly one coordinate system |
Shape S2 |
geosrs:CRS |
geosrs:domainOfValidity |
geosrs:AreaOfUse |
1 |
- |
A coordinate reference system should have at least one area of use |
Shape S3 |
geosrs:CRS |
geosrs:datum |
geosrs:Datum |
1 |
1 |
A coordinate reference system should have exactly one datum |
Shape S4 |
geosrs:CRS |
geosrs:datumEnsemble |
geosrs:DatumEnsemble |
1 |
1 |
A coordinate reference system may have exactly one datum ensemble |
Shape S5 |
geosrs:CompoundCRS |
geosrs:includesSRS |
geosrs:SingleCRS |
1 |
- |
A compound coordinate reference system should consist of at least one single coordinate reference system |
Shape S6 |
geosrs:GeodeticCRS |
geosrs:coordinateSystem |
geosrs:GeodeticCoordinateSystem |
1 |
1 |
A geodetic coordinate reference system should have exactly one geodetic coordinate system |
Shape S7 |
geosrs:GeographicCRS |
geosrs:datum |
geosrs:GeodeticDatum |
1 |
1 |
A geographic coordinate reference system should have exactly one geodetic datum |
Shape S8 |
geosrs:GeographicCRS |
geosrs:coordinateSystem |
geosrs:EllipsoidalCoordinateSystem |
1 |
1 |
A geographic coordinate reference system should have exactly one ellipsoidal coordinate system |
Shape S9 |
geosrs:ParametricCRS |
geosrs:datum |
geosrs:ParametricDatum |
1 |
1 |
A parametric coordinate reference system should have exactly one parametric datum |
Shape S10 |
geosrs:ProjectedCRS |
geosrs:conversion |
geosrs:Conversion |
1 |
- |
A projected coordinate reference system should have at least one conversion |
Shape S11 |
geosrs:SingleCRS |
geosrs:coordinateSystem |
geosrs:CoordinateSystem |
1 |
1 |
A single coordinate reference system should have exactly one coordinate system |
Shape S12 |
geosrs:SingleCRS |
geosrs:datum |
geosrs:Datum |
1 |
1 |
A single coordinate reference system should have exactly one datum |
Shape S13 |
geosrs:TemporalCRS |
geosrs:datum |
geosrs:TemporalDatum |
1 |
1 |
A projected coordinate reference system should have exactly one temporal datum |
Label | TargetNode | Property | Class | MinCount | MaxCount | Comment |
---|---|---|---|---|---|---|
Shape S1 |
geosrs:ParametricDatum |
geosrs:definingParameter |
geosrs:DefiningParameter |
1 |
- |
A parametric datum should have at least one defining parameter |
Label | TargetNode | Property | Class | MinCount | MaxCount | Comment |
---|---|---|---|---|---|---|
Shape S1 |
geosrs:3DCoordinateSystem |
geosrs:axis |
geosrs:CoordinateSystemAxis |
3 |
- |
A 3D coordinate system should have at least three axis |
Shape S2 |
geosrs:ConicalCoordinateSystem |
geosrs:axis |
geosrs:CoordinateSystemAxis |
3 |
- |
A conical coordinate system should have at least three axis |
Shape S3 |
geosrs:CoordinateSystem |
geosrs:axis |
geosrs:CoordinateSystemAxis |
1 |
- |
A coordinate system should have at least one axis |
Shape S4 |
geosrs:CoordinateSystemAxis |
geosrs:axisDirection |
geosrs:AxisDirection |
1 |
1 |
A coordinate system axis should have exactly one axis direction |
Shape S5 |
geosrs:CylindricalCoordinateSystem |
geosrs:axis |
geosrs:CoordinateSystemAxis |
3 |
- |
A cylindrical coordinate system should have at least three axis |
Shape S6 |
geosrs:DateTimeTemporalCoordinateSystem |
geosrs:axis |
geosrs:CoordinateSystemAxis |
1 |
1 |
A date time temporal coordinate system should have exactly one axis |
Shape S7 |
geosrs:PlanarCoordinateSystem |
geosrs:axis |
geosrs:CoordinateSystemAxis |
2 |
- |
A planar coordinate system should have at least two axis |
Shape S8 |
geosrs:TemporalCoordinateSystem |
geosrs:axis |
geosrs:CoordinateSystemAxis |
1 |
1 |
A temporal coordinate system should have exactly one axis |
Shape S9 |
geosrs:TemporalCountCoordinateSystem |
geosrs:axis |
geosrs:CoordinateSystemAxis |
1 |
1 |
A temporal count coordinate system should have exactly one axis |
Shape S10 |
geosrs:TemporalMeasureCoordinateSystem |
geosrs:axis |
geosrs:CoordinateSystemAxis |
1 |
1 |
A temporal measure coordinate system should have exactly one axis |
We provide JSON-LD contexts to be compatible with other JSON-based formats which provide coordinate reference system data.
PROJSON is an established format to share geospatial data which has emerge from the PROJ library and encodes the WKT encoding of coordiante references systems. By adding a JSON-LD context to the PROJJSON standard we achieve an immediate compatibility with an established standard simply by extending it by one simple statement.
{
"@context": "https://opengeospatial.github.io/ontology-crs/context/geosrs-context.json",
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
...
}
We provide examples of application of this JSON-LD context with the distribution of this standard.
The OGC CRS working group is aiming towards the creation of their own JSON format for CRS. The JSON-LD context we provide aims to be compatible with both PROJJSON and OGCJSON.
Date | Release | Author | Primary clauses modified | Description |
---|---|---|---|---|
2016-04-28 |
0.1 |
G. Editor |
all |
initial version |
Example Bibliography (Delete this note).
The TC has approved Springer LNCS as the official document citation type. Springer LNCS is widely used in technical and computer science journals and other publications For citations in the text please use square brackets and consecutive numbers: [1], [2], [3] Actual References: [n] Journal: Author Surname, A.: Title. Publication Title. Volume number, Issue number, Pages Used (Year Published) [n] Web: Author Surname, A.: Title, http://Website-Url |
[], Ben-Kiki, O., Evans, C., Ingy döt Net: YAML Ain’t Markup Language, https://yaml.org/
[], Berners-Lee, T., Fielding, R., Masinter, L.: IETF RFC 3986 - Uniform Resource Identifier (URI): Generic Syntax, http://tools.ietf.org/rfc/rfc3986.txt
[], IANA: Link Relation Types, https://www.iana.org/assignments/link-relations/link-relations.xml
[], ISO: ISO 19142:2010 - Geographic information - Web Feature Service https://www.iso.org/standard/42136.html
[], OGC: Web Feature Service 2.0, http://docs.opengeospatial.org/is/09-025r2/09-025r2.html
[], W3C/OGC: Spatial Data on the Web Best Practices, W3C Working Group Note 28 September 2017, https://www.w3.org/TR/sdw-bp/
[], W3C: Data on the Web Best Practices, W3C Recommendation 31 January 2017, https://www.w3.org/TR/dwbp/
[], W3C: Data Catalog Vocabulary, W3C Recommendation 16 January 2014, https://www.w3.org/TR/vocab-dcat/