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tao
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<?xml version="1.0" encoding="UTF-8"?>
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<schema targetNamespace="http://www.opengis.net/gml" xmlns:gml="http://www.opengis.net/gml" xmlns="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" version="3.1.1.2">
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<annotation>
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<appinfo source="urn:opengis:specification:gml:schema-xsd:dynamicFeature:3.1.1"/>
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<documentation xml:lang="en">Basic support for tracking moving objects and objects with changing state.
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GML is an OGC Standard.
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Copyright (c) 2001,2005,2010 Open Geospatial Consortium.
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To obtain additional rights of use, visit http://www.opengeospatial.org/legal/ .
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</documentation>
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</annotation>
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<!-- ================================================================== -->
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<include schemaLocation="gml.xsd"/>
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<include schemaLocation="feature.xsd"/>
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<include schemaLocation="direction.xsd"/>
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<!-- ================================================================== -->
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<element name="dataSource" type="gml:StringOrRefType"/>
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<element name="status" type="gml:StringOrRefType"/>
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<!-- ================================================================== -->
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<element name="_TimeSlice" type="gml:AbstractTimeSliceType" abstract="true" substitutionGroup="gml:_GML"/>
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<!-- ===================================== -->
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<complexType name="AbstractTimeSliceType" abstract="true">
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<annotation>
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<documentation xml:lang="en">A timeslice encapsulates the time-varying properties of a dynamic feature--it
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must be extended to represent a timestamped projection of a feature. The dataSource
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property describes how the temporal data was acquired.</documentation>
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</annotation>
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<complexContent>
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<extension base="gml:AbstractGMLType">
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<sequence>
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<element ref="gml:validTime"/>
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<element ref="gml:dataSource" minOccurs="0"/>
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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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<element name="MovingObjectStatus" type="gml:MovingObjectStatusType" substitutionGroup="gml:_TimeSlice"/>
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<!-- ===================================== -->
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<complexType name="MovingObjectStatusType">
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<annotation>
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<documentation xml:lang="en">This type encapsulates various dynamic properties of moving objects
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(points, lines, regions). It is useful for dealing with features whose
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geometry or topology changes over time.</documentation>
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</annotation>
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<complexContent>
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<extension base="gml:AbstractTimeSliceType">
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<sequence>
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<element ref="gml:location"/>
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<element name="speed" type="gml:MeasureType" minOccurs="0"/>
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<element name="bearing" type="gml:DirectionPropertyType" minOccurs="0"/>
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<element name="acceleration" type="gml:MeasureType" minOccurs="0"/>
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<element name="elevation" type="gml:MeasureType" minOccurs="0"/>
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<element ref="gml:status" minOccurs="0"/>
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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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<element name="history" type="gml:HistoryPropertyType"/>
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<!-- ===================================== -->
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<complexType name="HistoryPropertyType">
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<annotation>
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<documentation xml:lang="en">The history relationship associates a feature with a sequence of TimeSlice instances.</documentation>
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</annotation>
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<sequence maxOccurs="unbounded">
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<element ref="gml:_TimeSlice"/>
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</sequence>
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</complexType>
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<!-- ================================================================== -->
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<element name="track" type="gml:TrackType" substitutionGroup="gml:history"/>
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<!-- ===================================== -->
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<complexType name="TrackType">
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<annotation>
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<documentation xml:lang="en">The track of a moving object is a sequence of specialized timeslices that indicate the status of the object.</documentation>
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</annotation>
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<complexContent>
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<restriction base="gml:HistoryPropertyType">
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<sequence maxOccurs="unbounded">
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<element ref="gml:MovingObjectStatus"/>
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</sequence>
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</restriction>
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</complexContent>
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</complexType>
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<!-- ================================================================== -->
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<group name="dynamicProperties">
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<sequence>
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<element ref="gml:validTime" minOccurs="0"/>
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<element ref="gml:history" minOccurs="0"/>
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<element ref="gml:dataSource" minOccurs="0"/>
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</sequence>
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</group>
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<!-- ================================================================== -->
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<complexType name="DynamicFeatureType">
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<annotation>
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<documentation>A dynamic feature may possess a history and/or a timestamp.</documentation>
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</annotation>
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<complexContent>
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<extension base="gml:AbstractFeatureType">
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<group ref="gml:dynamicProperties"/>
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</extension>
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</complexContent>
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</complexType>
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<!-- ===================================== -->
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<complexType name="DynamicFeatureCollectionType">
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<annotation>
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<documentation>A dynamic feature collection may possess a history and/or a timestamp.</documentation>
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</annotation>
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<complexContent>
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<extension base="gml:FeatureCollectionType">
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<group ref="gml:dynamicProperties"/>
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</extension>
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</complexContent>
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</complexType>
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<!-- ===================================== -->
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</schema>
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