Global element

LineString

gml:LineString

Defined in OpRa/NeTEx/xsd/gml/geometryBasic0d1d-extract-v3_2_1.xsd:266

A LineString is a special curve that consists of a single segment with linear interpolation. It is defined by two or more coordinate tuples, with linear interpolation between them. The number of direct positions in the list shall be at least two.

Type

gml:LineStringType

Related elements

Substitution group chain: AbstractCurve abstract → AbstractGeometricPrimitive abstract → AbstractGeometry abstract → AbstractGML abstract → AbstractObject abstract

Referenced by: InfrastructureLink_Dummy, Link

Content model

Element structure

  • inherited from gml:AbstractGMLType 3 items
    • groupgml:StandardObjectProperties 1..1
      • gml:descriptionReference 0..1 gml:ReferenceType

        The value of this property is a remote text description of the object. The xlink:href attribute of the gml:descriptionReference property references the external description.

      • gml:identifier 0..1 gml:CodeWithAuthorityType

        Often, a special identifier is assigned to an object by the maintaining authority with the intention that it is used in references to the object For such cases, the codeSpace shall be provided. That identifier is usually unique either globally or within an application domain. gml:identifier is a pre-defined property for such identifiers.

      • gml:name 0..unbounded gml:CodeType

        The gml:name property provides a label or identifier for the object, commonly a descriptive name. An object may have several names, typically assigned by different authorities. gml:name uses the gml:CodeType content model. The authority for a name is indicated by the value of its (optional) codeSpace attribute. The name may or may not be unique, as determined by the rules of the organization responsible for the codeSpace. In common usage there will be one name per authority, so a processing application may select the name from its preferred codeSpace.

  • Defined here
  • choice 1..1

Properties

Attributes

3
inherited 3 attributes from base types
AttributeTypeUseDocumentationInherited from
id
gml:id
 ID required

The 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.

 gml:AbstractGMLType
srsName
gml:srsName
 anyURI optional — gml:AbstractGeometryType
srsDimension
gml:srsDimension
 positiveInteger optional — gml:AbstractGeometryType