Documentation for fieldgml

Element: _CoordinateReferenceSystem

[Table of contents]

Name _CoordinateReferenceSystem
Type gml:AbstractReferenceSystemType
Nillable no
Abstract yes
Documentation A coordinate reference system consists of an ordered sequence of coordinate system axes that are related to the earth through a datum. A coordinate reference system is defined by one datum and by one coordinate system. Most coordinate reference system do not move relative to the earth, except for engineering coordinate reference systems defined on moving platforms such as cars, ships, aircraft, and spacecraft. For further information, see OGC Abstract Specification Topic 2. Coordinate reference systems are commonly divided into sub-types. The common classification criterion for sub-typing of coordinate reference systems is the way in which they deal with earth curvature. This has a direct effect on the portion of the earth's surface that can be covered by that type of CRS with an acceptable degree of error. The exception to the rule is the subtype "Temporal" which has been added by analogy.
Logical Diagram
XML Instance Representation
<gml:_CoordinateReferenceSystem
gml:id="[1]">
<gml:metaDataProperty> ... </gml:metaDataProperty> [0..*]
<gml:srsName> ... </gml:srsName> [1]
<gml:srsID> ... </gml:srsID> [0..*]

'Set of alterative identifications of this reference system. The first srsID, if any, is normally the primary identification code, and any others are aliases.'

<gml:remarks> ... </gml:remarks> [0..1]

'Comments on or information about this reference system, including source information.'

<gml:validArea> ... </gml:validArea> [0..1]
<gml:scope> ... </gml:scope> [0..1]
</gml:_CoordinateReferenceSystem>
Diagram
h-1686543906 h-1809980586 h376905674 h1044606379 h-386899250 h1726830867 h1584479636 h470592652 h-425902465
Schema Component Representation
<element name="_CoordinateReferenceSystem" type=" gml:AbstractReferenceSystemType " abstract="true" substitutionGroup="gml:_CRS"/>