Schema documentation for component gml:TopoCurveType

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Annotations

Attributes

Diagrams

Source

Used by

Complex Type gml:TopoCurveType

Namespace

http://www.opengis.net/gml

Annotations

The end Node of each directedEdge of a TopoCurveType
is the start Node of the next directedEdge of the TopoCurveType in document order.  The TopoCurve type and element represent a homogeneous topological expression, a list of directed edges, which if realised are isomorphic to a geometric curve primitive. The intended use of TopoCurve is to appear within a line feature instance to express the structural and geometric relationships of this line to other features via the shared edge definitions.

Diagram

Type

extension of gml:AbstractTopologyType

Type hierarchy

gml:AbstractGMLType
- gml:AbstractTopologyType
  - gml:TopoCurveType

Used by

Element

gml:TopoCurve

Model

gml:metaDataProperty* , gml:description{0,1} , gml:name* , gml:directedEdge+

Children

gml:description, gml:directedEdge, gml:metaDataProperty, gml:name

Attributes

QName

Type

Fixed

Default

Use

Annotation

gml:id

optional

Database handle for the object.  It is of XML type ID, so is constrained to be unique in the XML document within which it occurs.  An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods.  This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.

Source

<complexType name="TopoCurveType">
  <annotation>
    <documentation>The end Node of each directedEdge of a TopoCurveType is the start Node of the next directedEdge of the TopoCurveType in document order. The TopoCurve type and element represent a homogeneous topological expression, a list of directed edges, which if realised are isomorphic to a geometric curve primitive. The intended use of TopoCurve is to appear within a line feature instance to express the structural and geometric relationships of this line to other features via the shared edge definitions.</documentation>
  </annotation>
  <complexContent>
    <extension base="gml:AbstractTopologyType">
      <sequence>
        <element ref="gml:directedEdge" maxOccurs="unbounded"/>
      </sequence>
    </extension>
  </complexContent>
</complexType>

Schema location

http://schemas.opengis.net/gml/3.1.1/base/topology.xsd