getcoverage.xsd

联合国农粮署牵头开发的geonetwork源代码最新版

<?xml version="1.0" encoding="UTF-8"?>
<!-- edited with XML Spy v4.3 U (http://www.xmlspy.com) by John D Evans (Global Science & Technology, Inc) -->
<!-- edited with XMLSPY v5 rel. 4 U (http://www.xmlspy.com) by Steven Keens (PCI Geomatics Inc.) -->
<xs:schema targetNamespace="http://www.opengis.net/wcs" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:gml="http://www.opengis.net/gml" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://www.opengis.net/wcs" elementFormDefault="qualified" attributeFormDefault="unqualified" version="1.0.0" xml:lang="en">
	<xs:annotation>
		<xs:appinfo>getCoverage.xsd v1.0.0 2003-08-27</xs:appinfo>
		<xs:documentation>This schema defines the GetCoverage operation request and response XML elements and types, used by an OGC Web Coverage Service (WCS). This schema is believed to be a GML Application Schema. </xs:documentation>
		<xs:documentation>AEW 03/07/22 Changes made:
		[xmlns:t=""] above
		[version="1.0.0" xml:lang="en"] above
		[abstract="true"] from CoverageRequest
		CoverageRequestType with CoverageRequest
		names of all elements in CoverageRequest to start with lower case letter
		new OutputType for "output" element in CoverageRequest
		restriction of DomainSetType from DomainSubsetType, to make schema valid
		documention to DomainSubsetType, CoverageRequest, RangeSubsetType
		definition of "name" in RangeSubsetType, to produce valid schema. Should this "name" attribute be changed to "label"?
		definition of axisSubset in RangeSubsetType
		</xs:documentation>
		<xs:documentation>AEW 03/07/29 Changes made:
		documentation to DomainSubsetType, GridOp
		</xs:documentation>
		<xs:documentation>AEW 03/08/01 Changes made:
		documentation of many types
		</xs:documentation>
		<xs:documentation>JDE 03/08/27 Changes made:
		both GetCoverage/@service and DescribeCoverage/@version required
		</xs:documentation>
	</xs:annotation>
	<!-- ==========================================================
          includes and imports
	========================================================== -->
	<xs:import namespace="http://www.opengis.net/gml" schemaLocation="gml4wcs.xsd"/>
	<xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://schemas.opengis.net/gml/3.0.0/xlink/xlinks.xsd"/>
	<xs:include schemaLocation="./describeCoverage.xsd"/>
	<!-- ======================================================= -->
	<xs:element name="GetCoverage">
		<xs:annotation>
			<xs:documentation>Request to a WCS to perform the GetCoverage operation. In this XML encoding, no "request" parameter is included, since the element name specifies the specific operation. </xs:documentation>
		</xs:annotation>
		<xs:complexType>
			<xs:sequence>
				<xs:element name="sourceCoverage" type="xs:string">
					<xs:annotation>
						<xs:documentation>The coverage offering (identified by its "name") that this request will draw from.</xs:documentation>
					</xs:annotation>
				</xs:element>
				<xs:element name="domainSubset" type="DomainSubsetType"/>
				<xs:element name="rangeSubset" type="RangeSubsetType" minOccurs="0"/>
				<xs:element ref="interpolationMethod" minOccurs="0">
					<xs:annotation>
						<xs:documentation>Spatial interpolation method to be used in  resampling data from its original form to the requested CRS and/or grid size. Method shall be among those listed for the requested coverage in the DescribeCoverage response.</xs:documentation>
					</xs:annotation>
				</xs:element>
				<xs:element name="output" type="OutputType"/>
			</xs:sequence>
			<xs:attribute name="service" type="xs:string" use="required" fixed="WCS"/>
			<xs:attribute name="version" type="xs:string" use="required" fixed="1.0.0"/>
		</xs:complexType>
	</xs:element>
	<!-- ======================================================= -->
	<xs:complexType name="DomainSubsetType">
		<xs:annotation>
			<xs:documentation>Defines the desired subset of the domain set of the coverage. Is a GML property containing either or both spatialSubset and temporalSubset GML objects. </xs:documentation>
		</xs:annotation>
		<xs:choice>
			<xs:sequence>
				<xs:element ref="spatialSubset"/>
				<xs:element ref="temporalSubset" minOccurs="0"/>
			</xs:sequence>
			<xs:element ref="temporalSubset"/>
		</xs:choice>
	</xs:complexType>
	<!-- ======================================================= -->
	<xs:element name="spatialSubset" type="SpatialSubsetType"/>
	<!-- ======================================================= -->
	<xs:complexType name="SpatialSubsetType">
		<xs:annotation>
			<xs:documentation>Definition of a subset of a coverage spatial domain. Currently, only a grid subset of a coverage domain. </xs:documentation>
		</xs:annotation>
		<xs:complexContent>
			<xs:restriction base="SpatialDomainType">
				<xs:sequence>
					<xs:element ref="gml:Envelope"/>
					<xs:element ref="gml:Grid"/>
				</xs:sequence>
			</xs:restriction>
		</xs:complexContent>
	</xs:complexType>
	<!-- ======================================================= -->
	<xs:element name="temporalSubset" type="TimeSequenceType"/>
	<!-- ======================================================= -->
	<xs:complexType name="RangeSubsetType">
		<xs:annotation>
			<xs:documentation>Definition of a subset of the named coverage range(s). Currently, only a value enumeration definition of a range subset. </xs:documentation>
		</xs:annotation>
		<xs:sequence>
			<xs:element name="axisSubset" maxOccurs="unbounded">
				<xs:annotation>
					<xs:documentation>Ordered sequence of points and/or intervals along one axis of a compound range set. </xs:documentation>
				</xs:annotation>
				<xs:complexType>
					<xs:complexContent>
						<xs:extension base="valueEnumBaseType">
							<xs:attribute name="name" type="xs:string" use="required">
								<xs:annotation>
									<xs:documentation>Name or identifier of one axis in this coverage. This name shall match that of an AxisDescription element in the DescribeCoverage XML response.  </xs:documentation>
								</xs:annotation>
							</xs:attribute>
						</xs:extension>
					</xs:complexContent>
				</xs:complexType>
			</xs:element>
		</xs:sequence>
	</xs:complexType>
	<!-- ======================================================= -->
	<xs:complexType name="OutputType">
		<xs:annotation>
			<xs:documentation>Asks for the GetCoverage response to be expressed in a particular Coordinate Reference System (crs) and encoded in a particular format. </xs:documentation>
		</xs:annotation>
		<xs:sequence>
			<xs:element name="crs" type="gml:CodeType" minOccurs="0">
				<xs:annotation>
					<xs:documentation>Identifier of the Coordinate Reference System (crs) in which GetCoverage response shall be expressed. Identifier shall be among those listed under supportedCRSs in the DescribeCoverage XML response. </xs:documentation>
				</xs:annotation>
			</xs:element>
			<xs:element name="format" type="gml:CodeType">
				<xs:annotation>
					<xs:documentation>Identifier of the format in which GetCoverage response shall be encoded. Identifier shall be among those listed under supportedFormats in the DescribeCoverage XML response. </xs:documentation>
				</xs:annotation>
			</xs:element>
		</xs:sequence>
	</xs:complexType>
</xs:schema>