<complexType name="TriangulatedSurfacePatchType">
<complexContent>
<extension base="gml:AbstractSurfacePatchType">
<sequence>
<element ref="gml:exterior">
<annotation>
<documentation>The exterior boundary of the triangle. It is required, unlike the optional exterior of diggs:PlanarSurfacePatch, and is a 3-sided ring of 4 positions, the first equal to the last.</documentation>
</annotation>
</element>
<element minOccurs="0" name="uncertainty" type="diggs:LocationUncertaintyPropertyType">
<annotation>
<documentation>The positional uncertainty of the triangle patch.</documentation>
</annotation>
</element>
</sequence>
<attribute fixed="planar" name="interpolation" type="gml:SurfaceInterpolationType">
<annotation>
<documentation>The interpolation of the patch, fixed at planar.</documentation>
</annotation>
</attribute>
</extension>
</complexContent>
</complexType>
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