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Annotations
Attributes
Diagrams
Source
Used by
Complex Type gml:EdgeType
Namespace http://www.opengis.net/gml
Annotations
There is precisely one positively directed and one negatively directed node in the boundary of every edge. The negatively and positively directed nodes correspond to the start and end nodes respectively. The optional coboundary of an edge is a circular sequence of directed faces which are incident on this edge in document order. Faces which use a particular boundary edge in its positive orientation appear with positive orientation on the coboundary of the same edge. In the 2D case, the orientation of the face on the left of the edge is "+"; the orientation of the face on the right on its right is "-". An edge may optionally be realised by a 1-dimensional (curve) geometric primitive.
Diagram
Diagram docindex5.tmp#id53 docindex6.tmp#id34 docindex7.tmp#id48 docindex8.tmp#id50 docindex9.tmp#id33 docindex10.tmp#id32 docindex17.tmp#id304 docindex18.tmp#id307 docindex19.tmp#id310 docindex20.tmp#id306 docindex199.tmp#id316 docindex422.tmp#id320 docindex449.tmp#id323
Type extension of gml:AbstractTopoPrimitiveType
Type hierarchy
Used by
Element gml:Edge
Model gml:metaDataProperty* , gml:description{0,1} , gml:name* , gml:isolated* , gml:container{0,1} , gml:directedNode{2,2} , gml:directedFace* , gml:curveProperty{0,1}
Children gml:container, gml:curveProperty, gml:description, gml:directedFace, gml:directedNode, gml:isolated, gml:metaDataProperty, gml:name
Attributes
QName Type Fixed Default Use Annotation
gml:id 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="EdgeType">
  <annotation>
    <documentation>There is precisely one positively directed and one negatively directed node in the boundary of every edge. The negatively and positively directed nodes correspond to the start and end nodes respectively. The optional coboundary of an edge is a circular sequence of directed faces which are incident on this edge in document order. Faces which use a particular boundary edge in its positive orientation appear with positive orientation on the coboundary of the same edge. In the 2D case, the orientation of the face on the left of the edge is "+"; the orientation of the face on the right on its right is "-". An edge may optionally be realised by a 1-dimensional (curve) geometric primitive.</documentation>
  </annotation>
  <complexContent>
    <extension base="gml:AbstractTopoPrimitiveType">
      <sequence>
        <element ref="gml:directedNode" minOccurs="2" maxOccurs="2"/>
        <element ref="gml:directedFace" minOccurs="0" maxOccurs="unbounded"/>
        <element ref="gml:curveProperty" minOccurs="0"/>
      </sequence>
    </extension>
  </complexContent>
</complexType>
Schema location http://schemas.opengis.net/gml/3.1.1/base/topology.xsd