Global element
exterior
gml:exterior
Defined in SIRI/xsd/gml/gmlBasic2d-extract.xsd:66
A boundary of a surface consists of a number of rings. In the normal 2D case, one of these rings is distinguished as being the exterior boundary. In a general manifold this is not always possible, in which case all boundaries shall be listed as interior boundaries, and the exterior will be empty.
Type
Content model
Element structure
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An abstraction of a ring to support surface boundaries of different complexity. The AbstractRing element is the abstract head of the substitution group for all closed boundaries of a surface patch.