GML application schema for the Simple and GML serializations of GeoRSS v. 1.1 note that while this schema is a valid derivative of GML, it does not constitute a GML feature schema and cannot be used to encode explicit GML features because it does not derive from gml:AbstractFeature makes use of the gmlgeorss v. 1.1 profile of GML 3.1.1 Generated by Joshua Lieberman - December 2006 Global element which acts as the head of a substitution group that may include any element which is a GeoRSS feature property Abstract type of georss feature properties Geometry property element of a GeoRSS GML instance Point property element containing a pair of coordinates representing latitude then longitude in the WGS84 coordinate reference system This GeoRSS Simple element maps completely onto the where + gml:Point combination of GeoRSS GML The content of this element must be one pair of coordinates in the WGS84 coordinate reference system Line property element containing a list of pairs of coordinates representing latitude then longitude in the WGS84 coordinate reference system This GeoRSS Simple element maps completely onto the where + gml:LineString combination of GeoRSS GML The content of this element must be two or more pairs of coordinates in the WGS84 coordinate reference system Closed ring property element containing a list of pairs of coordinates (first pair and last pair identical) representing latitude then longitude in the WGS84 coordinate reference system This GeoRSS Simple element maps completely onto the where + gml:Polygon combination of GeoRSS GML The content of this element must be three or more pairs of coordinates in the WGS84 coordinate reference system Rectangular envelope property element containing two pairs of coordinates (lower left envelope corner, upper right envelope corner) representing latitude then longitude in the WGS84 coordinate reference system This GeoRSS Simple element maps completely onto the where + gml:Envelope combination of GeoRSS GML The content of this element must be two pairs of coordinates in the WGS84 coordinate reference system Circle property element containing three coordinates (centerpoint latitude, centerpoint longitude, circle radius) with latitude then longitude in the WGS84 coordinate reference system and radius in meters This GeoRSS Simple element maps completely onto the where + gml:CircleByCenterPoint combination of GeoRSS GML The content of this element must be one pair of coordinates in the WGS84 coordinate reference system followed by one coordinate in meters Additional georss property indicating the name or identifier of the referenced geographic entity. Additional georss property indicating the type of the referenced geographic entity. Additional georss property indicating the relationship of the accompanying geometric property to the referenced geographic entity. Additional georss property indicating the elevation in meters such as obtained by GPS of the referenced geographic entity. Additional georss property indicating the elevation in building floors of the referenced geographic entity. Additional georss property indicating the radius or buffer about the accompanying geometric property which represents the referenced geographic entity. XML List based on XML Schema double type, identical to gml:doubleList. An element of this type contains a space-separated list of double values