<element name="Node" type="gml:NodeType" substitutionGroup="gml:AbstractTopoPrimitive">
<annotation>
<documentation>gml:Node represents the 0-dimensional primitive.
The optional coboundary of a node (gml:directedEdge) is a sequence of directed edges which are incident on this node. Edges emanating from this node appear in the node coboundary with a negative orientation.
If provided, the aggregationType attribute shall have the value "sequence".
A node may optionally be realised by a 0-dimensional geometric primitive (gml:pointProperty).</documentation>
</annotation>
</element>
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