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<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema
targetNamespace="http://www.opengis.net/ogc"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:gml="http://www.opengis.net/gml"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified"
version="1.1.2">
<xsd:annotation>
<xsd:documentation>
This XML Schema defines OGC query filter capabilities documents.
filter is an OGC Standard.
Copyright (c) 2002,2003,2004,2010 Open Geospatial Consortium, Inc. All Rights Reserved.
To obtain additional rights of use, visit http://www.opengeospatial.org/legal/ .
Updated: 2010-01-22
</xsd:documentation>
</xsd:annotation>
<xsd:element name="Filter_Capabilities">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="Spatial_Capabilities"
type="ogc:Spatial_CapabilitiesType"/>
<xsd:element name="Scalar_Capabilities"
type="ogc:Scalar_CapabilitiesType"/>
<xsd:element name="Id_Capabilities"
type="ogc:Id_CapabilitiesType"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<xsd:complexType name="Spatial_CapabilitiesType">
<xsd:sequence>
<xsd:element name="GeometryOperands"
type="ogc:GeometryOperandsType"/>
<xsd:element name="SpatialOperators"
type="ogc:SpatialOperatorsType"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="GeometryOperandsType">
<xsd:sequence>
<xsd:element name="GeometryOperand"
type="ogc:GeometryOperandType" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
<xsd:simpleType name="GeometryOperandType">
<xsd:restriction base="xsd:QName">
<xsd:enumeration value="gml:Envelope"/>
<xsd:enumeration value="gml:Point"/>
<xsd:enumeration value="gml:LineString"/>
<xsd:enumeration value="gml:Polygon"/>
<xsd:enumeration value="gml:ArcByCenterPoint"/>
<xsd:enumeration value="gml:CircleByCenterPoint"/>
<xsd:enumeration value="gml:Arc"/>
<xsd:enumeration value="gml:Circle"/>
<xsd:enumeration value="gml:ArcByBulge"/>
<xsd:enumeration value="gml:Bezier"/>
<xsd:enumeration value="gml:Clothoid"/>
<xsd:enumeration value="gml:CubicSpline"/>
<xsd:enumeration value="gml:Geodesic"/>
<xsd:enumeration value="gml:OffsetCurve"/>
<xsd:enumeration value="gml:Triangle"/>
<xsd:enumeration value="gml:PolyhedralSurface"/>
<xsd:enumeration value="gml:TriangulatedSurface"/>
<xsd:enumeration value="gml:Tin"/>
<xsd:enumeration value="gml:Solid"/>
</xsd:restriction>
</xsd:simpleType>
<xsd:complexType name="SpatialOperatorsType">
<xsd:sequence>
<xsd:element name="SpatialOperator"
type="ogc:SpatialOperatorType"
maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="SpatialOperatorType">
<xsd:sequence>
<xsd:element name="GeometryOperands"
type="ogc:GeometryOperandsType"
minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="name" type="ogc:SpatialOperatorNameType"/>
</xsd:complexType>
<xsd:simpleType name="SpatialOperatorNameType">
<xsd:restriction base="xsd:string">
<xsd:enumeration value="BBOX"/>
<xsd:enumeration value="Equals"/>
<xsd:enumeration value="Disjoint"/>
<xsd:enumeration value="Intersects"/>
<xsd:enumeration value="Touches"/>
<xsd:enumeration value="Crosses"/>
<xsd:enumeration value="Within"/>
<xsd:enumeration value="Contains"/>
<xsd:enumeration value="Overlaps"/>
<xsd:enumeration value="Beyond"/>
<xsd:enumeration value="DWithin"/>
</xsd:restriction>
</xsd:simpleType>
<xsd:complexType name="Scalar_CapabilitiesType">
<xsd:sequence>
<xsd:element ref="ogc:LogicalOperators"
minOccurs="0" maxOccurs="1"/>
<xsd:element name="ComparisonOperators"
type="ogc:ComparisonOperatorsType"
minOccurs="0" maxOccurs="1"/>
<xsd:element name="ArithmeticOperators"
type="ogc:ArithmeticOperatorsType"
minOccurs="0" maxOccurs="1"/>
</xsd:sequence>
</xsd:complexType>
<xsd:element name="LogicalOperators">
<xsd:complexType/>
</xsd:element>
<xsd:complexType name="ComparisonOperatorsType">
<xsd:sequence maxOccurs="unbounded">
<xsd:element name="ComparisonOperator"
type="ogc:ComparisonOperatorType"/>
</xsd:sequence>
</xsd:complexType>
<xsd:simpleType name="ComparisonOperatorType">
<xsd:restriction base="xsd:string">
<xsd:enumeration value="LessThan"/>
<xsd:enumeration value="GreaterThan"/>
<xsd:enumeration value="LessThanEqualTo"/>
<xsd:enumeration value="GreaterThanEqualTo"/>
<xsd:enumeration value="EqualTo"/>
<xsd:enumeration value="NotEqualTo"/>
<xsd:enumeration value="Like"/>
<xsd:enumeration value="Between"/>
<xsd:enumeration value="NullCheck"/>
</xsd:restriction>
</xsd:simpleType>
<xsd:complexType name="ArithmeticOperatorsType">
<xsd:choice maxOccurs="unbounded">
<xsd:element ref="ogc:SimpleArithmetic"/>
<xsd:element name="Functions" type="ogc:FunctionsType"/>
</xsd:choice>
</xsd:complexType>
<xsd:element name="SimpleArithmetic">
<xsd:complexType/>
</xsd:element>
<xsd:complexType name="FunctionsType">
<xsd:sequence>
<xsd:element name="FunctionNames" type="ogc:FunctionNamesType"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="FunctionNamesType">
<xsd:sequence maxOccurs="unbounded">
<xsd:element name="FunctionName" type="ogc:FunctionNameType"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="FunctionNameType">
<xsd:simpleContent>
<xsd:extension base="xsd:string">
<xsd:attribute name="nArgs" type="xsd:string" use="required"/>
</xsd:extension>
</xsd:simpleContent>
</xsd:complexType>
<xsd:complexType name="Id_CapabilitiesType">
<xsd:choice maxOccurs="unbounded">
<xsd:element ref="ogc:EID"/>
<xsd:element ref="ogc:FID"/>
</xsd:choice>
</xsd:complexType>
<xsd:element name="EID">
<xsd:complexType/>
</xsd:element>
<xsd:element name="FID">
<xsd:complexType/>
</xsd:element>
</xsd:schema>
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