Schema Central > NIEM 3.1 > coordinateSystems.xsd > gml:AbstractCoordinateSystem
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gml:AbstractCoordinateSystem

gml:AbstractCoordinateSystem is a coordinate system (CS) is the non-repeating sequence of coordinate system axes that spans a given coordinate space. A CS is derived from a set of mathematical rules for specifying how coordinates in a given space are to be assigned to points. The coordinate values in a coordinate tuple shall be recorded in the order in which the coordinate system axes associations are recorded. This abstract complex type shall not be used, extended, or restricted, in an Application Schema, to define a concrete subtype with a meaning equivalent to a concrete subtype specified in this document.

Element information

Type: gml:AbstractCoordinateSystemType

Properties: Global, Qualified, Abstract

Content

Attributes

NameOccTypeDescriptionNotes
gml:id [1..1]xsd:IDThe attribute gml:id supports provision of a handle for the XML element representing a GML Object. Its use is mandatory for all GML objects. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs.from type gml:DefinitionBaseType
aggregationType [0..1]gml:AggregationTypefrom group gml:AggregationAttributeGroup

Used in

Substitution hierarchy

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