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eLibrary > BS ISO 19162:2019+A1:2023 Geographic information. Well-known text representation of coordinate reference systems >

BS ISO 19162:2019+A1:2023 Geographic information. Well-known text representation of coordinate reference systems, 2023

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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms
4 Conformance requirements
5 Backus-Naur Form notation and syntax
6 WKT string form
6.1 Overview
6.2 Encoding
6.3 Characters used in WKT
6.3.1 Basic characters
6.3.2 Numbers
6.3.3 Date and time
6.3.4 CRS WKT characters
6.3.5 Double quote
6.4 Delimiter
6.5 Case sensitivity
6.6 Reserved keywords
6.7 Backward compatibility
7 WKT representation of common attributes
7.1 General
7.2 Name
7.3 Scope, extent, identifier and remark
7.3.1 General
7.3.2 Usage (scope and extent)
7.3.3 Identifier
7.3.4 Remark
7.4 Unit and unit conversion factor
7.4.1 Unit description
7.4.2 Conversion factor — Spatial and parametric units
7.4.3 Conversion factor — Temporal quantities
7.4.4 Default unit
7.5 Coordinate system
7.5.1 Syntax
Blank Page
7.5.2 Coordinate system type, dimension and coordinate data type
7.5.3 Axis name and abbreviation
7.5.4 Axis direction
7.5.5 Axis order
7.5.6 Axis unit and coordinate system unit
Blank Page
7.5.7 Examples of WKT describing coordinate systems
7.6 Datum ensemble
7.7 Dynamic coordinate reference systems
8 WKT representation of geodetic and geographic coordinate reference systems
8.1 Overview
8.2 Geodetic reference frame (geodetic datum)
8.2.1 Ellipsoid
Blank Page
8.2.2 Prime meridian
8.2.3 Geodetic reference frame (datum)
Blank Page
8.3 Coordinate systems for geodetic and geographic CRSs
8.4 Examples of WKT describing a geodetic or geographic CRS
9 WKT representation of projected CRSs
9.1 Overview
9.2 Base CRS
9.2.1 General
9.2.2 Ellipsoidal CS unit
9.3 Map projection
9.3.1 Introduction
9.3.2 Map projection name and identifier
9.3.3 Map projection method
9.3.4 Map projection parameter
9.4 Coordinate systems for projected CRSs
9.5 Examples of WKT describing a projected CRS
10 WKT representation of vertical CRSs
10.1 Overview
10.2 Vertical reference frame (vertical datum)
10.3 Vertical coordinate system
10.4 Example of WKT describing a vertical CRS
11 WKT representation of engineering CRSs
11.1 Overview
11.2 Engineering datum
11.3 Coordinate systems for engineering CRSs
11.4 Examples of WKT describing an engineering CRS
12 WKT representation of parametric CRSs
12.1 Overview
12.2 Parametric datum
12.3 Parametric coordinate system
12.4 Example of WKT describing a parametric CRS
13 WKT representation of temporal CRSs
13.1 Temporal CRS
13.2 Temporal datum
13.3 Temporal coordinate system
13.3.1 General
13.3.2 Axis unit for temporalDateTime coordinate systems
13.3.3 Axis unit for temporalCount and temporalMeasure coordinate systems
13.4 Examples of WKT describing a temporal CRS
14 WKT representation of derived CRSs
14.1 Overview
14.2 Deriving conversion
14.2.1 General
14.2.2 Derived CRS conversion method
14.2.3 Derived CRS conversion parameter
14.2.4 Derived CRS conversion parameter file
14.2.5 Derived CRS conversion example
14.3 Derived geodetic CRS and derived geographic CRS
14.3.1 Representation
14.3.2 Example of WKT describing a derived geographic CRS
14.4 Derived projected CRS
14.4.1 Representation
14.4.2 Example of WKT describing a derived projected CRS
14.5 Derived vertical CRS
14.6 Derived engineering CRS
14.7 Derived parametric CRS
14.8 Derived temporal CRS
15 WKT representation of compound coordinate reference systems
15.1 Overview
15.2 Examples of WKT describing a compound CRS
16 WKT representation of coordinate epoch and coordinate metadata
16.1 Coordinate epoch
16.2 Coordinate metadata
17 WKT representation of coordinate transformations and coordinate conversions excluding map projections
17.1 Coordinate operations
17.2 Transformation and conversion components
17.2.1 Operation name and version
17.2.2 Source and target CRS
17.2.3 Transformation and conversion name and identifier
17.2.4 Coordinate operation method
17.2.5 Coordinate operation parameter
17.2.6 Coordinate operation parameter file
17.2.7 Interpolation CRS
17.2.8 Coordinate operation accuracy
17.2.9 Other coordinate operation attributes
17.3 Examples of WKT describing a coordinate transformation
18 WKT representation of point motion operations
19 WKT representation of concatenated coordinate operations
19.1 General
19.2 Examples of WKT describing a concatenated coordinate operation
20 WKT representation of CRS and coordinate operation couplets
20.1 Bound CRS
20.2 Bound CRS components
20.2.1 Abridged coordinate transformation
20.2.2 Coordinate operation method in abridged coordinate transformations
20.2.3 Abridged coordinate transformation parameter
20.2.4 Coordinate operation parameter file
20.3 Examples of WKT describing a bound CRS
Annex A (normative) Abstract test suite
Annex B (informative) Recommended practice for implementation
Annex C (informative) Mapping of concepts from previous versions of CRS WKT
Annex D (informative) Backward compatibility with ISO 19162:2015
Annex E (normative) Triaxial ellipsoid
Annex F (informative) Identifiers for coordinate operation methods and parameters
Bibliography [Go to Page]

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