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+<?xml version="1.0" encoding="UTF-8"?>
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+<schema targetNamespace="http://www.opengis.net/gml" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:gml="http://www.opengis.net/gml" xmlns="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" version="2.1.2">
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+ <annotation>
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+ <appinfo>geometry.xsd v2.1.2 2002-07</appinfo>
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+ <documentation xml:lang="en">
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+ GML Geometry schema. Copyright (c) 2001,2002 OGC, All Rights Reserved.
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+ </documentation>
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+ </annotation>
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+ <!-- bring in the XLink attributes -->
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+ <import namespace="http://www.w3.org/1999/xlink" schemaLocation="xlinks.xsd"/>
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+ <!-- ==============================================================
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+ global declarations
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+ =================================================================== -->
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+ <element name="_Geometry" type="gml:AbstractGeometryType" abstract="true"/>
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+ <element name="_GeometryCollection" type="gml:GeometryCollectionType" abstract="true" substitutionGroup="gml:_Geometry"/>
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+ <element name="geometryMember" type="gml:GeometryAssociationType"/>
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+ <element name="pointMember" type="gml:PointMemberType" substitutionGroup="gml:geometryMember"/>
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+ <element name="lineStringMember" type="gml:LineStringMemberType" substitutionGroup="gml:geometryMember"/>
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+ <element name="polygonMember" type="gml:PolygonMemberType" substitutionGroup="gml:geometryMember"/>
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+ <element name="outerBoundaryIs" type="gml:LinearRingMemberType"/>
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+ <element name="innerBoundaryIs" type="gml:LinearRingMemberType"/>
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+ <!-- primitive geometry elements -->
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+ <element name="Point" type="gml:PointType" substitutionGroup="gml:_Geometry"/>
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+ <element name="LineString" type="gml:LineStringType" substitutionGroup="gml:_Geometry"/>
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+ <element name="LinearRing" type="gml:LinearRingType" substitutionGroup="gml:_Geometry"/>
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+ <element name="Polygon" type="gml:PolygonType" substitutionGroup="gml:_Geometry"/>
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+ <element name="Box" type="gml:BoxType"/>
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+ <!-- aggregate geometry elements -->
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+ <element name="MultiGeometry" type="gml:GeometryCollectionType" substitutionGroup="gml:_Geometry"/>
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+ <element name="MultiPoint" type="gml:MultiPointType" substitutionGroup="gml:_Geometry"/>
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+ <element name="MultiLineString" type="gml:MultiLineStringType" substitutionGroup="gml:_Geometry"/>
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+ <element name="MultiPolygon" type="gml:MultiPolygonType" substitutionGroup="gml:_Geometry"/>
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+ <!-- coordinate elements -->
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+ <element name="coord" type="gml:CoordType"/>
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+ <element name="coordinates" type="gml:CoordinatesType"/>
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+ <!-- this attribute gives the location where an element is defined -->
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+ <attribute name="remoteSchema" type="anyURI"/>
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+ <!-- ==============================================================
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+ abstract supertypes
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+ =================================================================== -->
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+ <complexType name="AbstractGeometryType" abstract="true">
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+ <annotation>
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+ <documentation>
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+ All geometry elements are derived from this abstract supertype;
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+ a geometry element may have an identifying attribute (gid).
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+ It may be associated with a spatial reference system.
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+ </documentation>
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+ </annotation>
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+ <complexContent>
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+ <restriction base="anyType">
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+ <attribute name="gid" type="ID" use="optional"/>
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+ <attribute name="srsName" type="anyURI" use="optional"/>
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+ </restriction>
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+ </complexContent>
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+ </complexType>
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+ <complexType name="AbstractGeometryCollectionBaseType" abstract="true">
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+ <annotation>
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+ <documentation>
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+ This abstract base type for geometry collections just makes the
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+ srsName attribute mandatory.
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+ </documentation>
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+ </annotation>
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+ <complexContent>
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+ <restriction base="gml:AbstractGeometryType">
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+ <attribute name="gid" type="ID" use="optional"/>
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+ <attribute name="srsName" type="anyURI" use="required"/>
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+ </restriction>
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+ </complexContent>
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+ </complexType>
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+ <attributeGroup name="AssociationAttributeGroup">
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+ <annotation>
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+ <documentation>
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+ These attributes can be attached to any element, thus allowing it
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+ to act as a pointer. The 'remoteSchema' attribute allows an element
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+ that carries link attributes to indicate that the element is declared
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+ in a remote schema rather than by the schema that constrains the
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+ current document instance.
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+ </documentation>
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+ </annotation>
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+ <attributeGroup ref="xlink:simpleLink"/>
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+ <attribute ref="gml:remoteSchema" use="optional"/>
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+ </attributeGroup>
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+ <complexType name="GeometryAssociationType">
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+ <annotation>
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+ <documentation>
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+ An instance of this type (e.g. a geometryMember) can either
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+ enclose or point to a primitive geometry element. When serving
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+ as a simple link that references a remote geometry instance,
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+ the value of the gml:remoteSchema attribute can be used to
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+ locate a schema fragment that constrains the target instance.
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+ </documentation>
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+ </annotation>
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+ <sequence minOccurs="0">
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+ <element ref="gml:_Geometry"/>
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+ </sequence>
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+ <!-- <attributeGroup ref="gml:AssociationAttributeGroup"/> -->
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+ <attributeGroup ref="xlink:simpleLink"/>
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+ <attribute ref="gml:remoteSchema" use="optional"/>
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+ </complexType>
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+ <complexType name="PointMemberType">
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+ <annotation>
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+ <documentation>Restricts the geometry member to being a Point instance.</documentation>
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+ </annotation>
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+ <complexContent>
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+ <restriction base="gml:GeometryAssociationType">
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+ <sequence minOccurs="0">
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+ <element ref="gml:Point"/>
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+ </sequence>
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+ <attributeGroup ref="gml:AssociationAttributeGroup"/>
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+ </restriction>
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+ </complexContent>
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+ </complexType>
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+ <complexType name="LineStringMemberType">
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+ <annotation>
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+ <documentation>Restricts the geometry member to being a LineString instance.</documentation>
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+ </annotation>
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+ <complexContent>
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+ <restriction base="gml:GeometryAssociationType">
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+ <sequence minOccurs="0">
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+ <element ref="gml:LineString"/>
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+ </sequence>
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+ <attributeGroup ref="gml:AssociationAttributeGroup"/>
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+ </restriction>
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+ </complexContent>
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+ </complexType>
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+ <complexType name="PolygonMemberType">
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+ <annotation>
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+ <documentation>Restricts the geometry member to being a Polygon instance.</documentation>
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+ </annotation>
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+ <complexContent>
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+ <restriction base="gml:GeometryAssociationType">
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+ <sequence minOccurs="0">
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+ <element ref="gml:Polygon"/>
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+ </sequence>
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+ <attributeGroup ref="gml:AssociationAttributeGroup"/>
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+ </restriction>
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+ </complexContent>
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+ </complexType>
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+ <complexType name="LinearRingMemberType">
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+ <annotation>
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+ <documentation>Restricts the outer or inner boundary of a polygon instance
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+ to being a LinearRing.</documentation>
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+ </annotation>
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+ <complexContent>
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+ <restriction base="gml:GeometryAssociationType">
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+ <sequence minOccurs="0">
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+ <element ref="gml:LinearRing"/>
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+ </sequence>
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+ <attributeGroup ref="gml:AssociationAttributeGroup"/>
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+ </restriction>
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+ </complexContent>
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+ </complexType>
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+ <!-- ==============================================================
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+ primitive geometry types
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+ =================================================================== -->
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+ <complexType name="PointType">
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+ <annotation>
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+ <documentation>
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+ A Point is defined by a single coordinate tuple.
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+ </documentation>
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+ </annotation>
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+ <complexContent>
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+ <extension base="gml:AbstractGeometryType">
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+ <sequence>
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+ <choice>
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+ <element ref="gml:coord"/>
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+ <element ref="gml:coordinates"/>
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+ </choice>
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+ </sequence>
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+ </extension>
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+ </complexContent>
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+ </complexType>
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+ <complexType name="LineStringType">
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+ <annotation>
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+ <documentation>
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+ A LineString is defined by two or more coordinate tuples, with
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+ linear interpolation between them.
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+ </documentation>
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+ </annotation>
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+ <complexContent>
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+ <extension base="gml:AbstractGeometryType">
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+ <sequence>
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+ <choice>
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+ <element ref="gml:coord" minOccurs="2" maxOccurs="unbounded"/>
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+ <element ref="gml:coordinates"/>
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+ </choice>
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+ </sequence>
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+ </extension>
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+ </complexContent>
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+ </complexType>
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+ <complexType name="LinearRingType">
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+ <annotation>
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+ <documentation>
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+ A LinearRing is defined by four or more coordinate tuples, with
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+ linear interpolation between them; the first and last coordinates
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+ must be coincident.
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+ </documentation>
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+ </annotation>
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+ <complexContent>
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+ <extension base="gml:AbstractGeometryType">
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+ <sequence>
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+ <choice>
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+ <element ref="gml:coord" minOccurs="4" maxOccurs="unbounded"/>
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+ <element ref="gml:coordinates"/>
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+ </choice>
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+ </sequence>
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+ </extension>
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+ </complexContent>
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+ </complexType>
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+ <complexType name="BoxType">
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+ <annotation>
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+ <documentation>
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+ The Box structure defines an extent using a pair of coordinate tuples.
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+ </documentation>
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+ </annotation>
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+ <complexContent>
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+ <extension base="gml:AbstractGeometryType">
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+ <sequence>
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+ <choice>
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+ <element ref="gml:coord" minOccurs="2" maxOccurs="2"/>
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+ <element ref="gml:coordinates"/>
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+ </choice>
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+ </sequence>
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+ </extension>
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+ </complexContent>
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+ </complexType>
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+ <complexType name="PolygonType">
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+ <annotation>
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+ <documentation>
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+ A Polygon is defined by an outer boundary and zero or more inner
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+ boundaries which are in turn defined by LinearRings.
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+ </documentation>
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+ </annotation>
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+ <complexContent>
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+ <extension base="gml:AbstractGeometryType">
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+ <sequence>
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+ <element ref="gml:outerBoundaryIs"/>
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+ <element ref="gml:innerBoundaryIs" minOccurs="0" maxOccurs="unbounded"/>
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+ </sequence>
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+ </extension>
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+ </complexContent>
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+ </complexType>
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+ <!-- ==============================================================
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+ aggregate geometry types
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+ =================================================================== -->
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+ <complexType name="GeometryCollectionType">
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+ <annotation>
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+ <documentation>
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+ A geometry collection must include one or more geometries, referenced
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+ through geometryMember elements. User-defined geometry collections
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+ that accept GML geometry classes as members must instantiate--or
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+ derive from--this type.
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+ </documentation>
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+ </annotation>
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+ <complexContent>
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+ <extension base="gml:AbstractGeometryCollectionBaseType">
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+ <sequence maxOccurs="unbounded">
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+ <element ref="gml:geometryMember"/>
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+ </sequence>
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+ </extension>
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+ </complexContent>
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+ </complexType>
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+ <complexType name="MultiPointType">
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+ <annotation>
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+ <documentation>
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+ A MultiPoint is defined by one or more Points, referenced through
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+ pointMember elements.
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+ </documentation>
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+ </annotation>
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+ <complexContent>
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+ <restriction base="gml:GeometryCollectionType">
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+ <sequence maxOccurs="unbounded">
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+ <element ref="gml:pointMember"/>
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+ </sequence>
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+ <attribute name="gid" type="ID" use="optional"/>
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+ <attribute name="srsName" type="anyURI" use="required"/>
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+ </restriction>
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+ </complexContent>
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+ </complexType>
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+ <complexType name="MultiLineStringType">
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+ <annotation>
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+ <documentation>
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+ A MultiLineString is defined by one or more LineStrings, referenced
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+ through lineStringMember elements.
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+ </documentation>
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+ </annotation>
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+ <complexContent>
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+ <restriction base="gml:GeometryCollectionType">
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+ <sequence maxOccurs="unbounded">
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+ <element ref="gml:lineStringMember" />
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+ </sequence>
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+ <attribute name="gid" type="ID" use="optional"/>
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+ <attribute name="srsName" type="anyURI" use="required"/>
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+ </restriction>
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+ </complexContent>
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+ </complexType>
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+ <complexType name="MultiPolygonType">
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+ <annotation>
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+ <documentation>
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+ A MultiPolygon is defined by one or more Polygons, referenced through
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+ polygonMember elements.
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+ </documentation>
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+ </annotation>
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+ <complexContent>
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+ <restriction base="gml:GeometryCollectionType">
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+ <sequence maxOccurs="unbounded">
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+ <element ref="gml:polygonMember"/>
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+ </sequence>
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+ <attribute name="gid" type="ID" use="optional"/>
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+ <attribute name="srsName" type="anyURI" use="required"/>
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+ </restriction>
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+ </complexContent>
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+ </complexType>
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+ <!-- ==============================================================
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+ There are two ways to represent coordinates: (1) as a sequence
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+ of <coord> elements that encapsulate tuples, or (2) using a
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+ single <coordinates> string.
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+ =================================================================== -->
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+ <complexType name="CoordType">
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+ <annotation>
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+ <documentation>
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+ Represents a coordinate tuple in one, two, or three dimensions.
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+ </documentation>
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+ </annotation>
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+ <sequence>
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+ <element name="X" type="decimal"/>
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+ <element name="Y" type="decimal" minOccurs="0"/>
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+ <element name="Z" type="decimal" minOccurs="0"/>
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+ </sequence>
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+ </complexType>
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+ <complexType name="CoordinatesType">
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+ <annotation>
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+ <documentation>
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+ Coordinates can be included in a single string, but there is no
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+ facility for validating string content. The value of the 'cs' attribute
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+ is the separator for coordinate values, and the value of the 'ts'
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+ attribute gives the tuple separator (a single space by default); the
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+ default values may be changed to reflect local usage.
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+ </documentation>
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+ </annotation>
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+ <simpleContent>
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+ <extension base="string">
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+ <attribute name="decimal" type="string" use="optional" default="."/>
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+ <attribute name="cs" type="string" use="optional" default=","/>
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+ <attribute name="ts" type="string" use="optional" default=" "/>
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+ </extension>
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+ </simpleContent>
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+ </complexType>
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+</schema>
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