Schema Central > niem40 > topology.xsd > gml:TopoCurve
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gml:TopoCurve represents a homogeneous topological expression, a sequence of directed edges, which if realised are isomorphic to a geometric curve primitive. The intended use of gml:TopoCurve is to appear within a line feature to express the structural and geometric relationships of this feature to other features via the shared edge definitions.
If provided, the aggregationType attribute shall have the value "sequence".

Element information

Type: gml:TopoCurveType

Properties: Global, Qualified



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:AbstractGMLType
aggregationType [0..1]gml:AggregationTypefrom group gml:AggregationAttributeGroup

Used in

Sample instance

<gml:TopoCurve gml:id="ID">
      <gml:GenericMetaData>Any text, intermingled with:
         <!--any element-->
   <gml:identifier codeSpace="">string</gml:identifier>
      <gml:Edge gml:id="ID">
         <gml:identifier codeSpace="">string</gml:identifier>