<element name="Rectangle" type="gml:RectangleType" substitutionGroup="gml:AbstractSurfacePatch">
<annotation>
<documentation>gml:Rectangle represents a rectangle as a surface patch with an outer boundary consisting of a linear ring. Note that this is a polygon (subtype) with no inner boundaries. The number of points in the linear ring shall be five.
The ring (element exterior) shall be a gml:LinearRing and shall form a rectangle; the first and the last position shall be coincident.
interpolation is fixed to "planar", i.e. an interpolation shall return points on a single plane. The boundary of the patch shall be contained within that plane.</documentation>
</annotation>
</element>
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