Commit cf51c88b authored by Claus Nagel's avatar Claus Nagel
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0.3.0pre: intermediate commit to make changes persistent

do not update to this revision.
parent 357dd37e
<?xml version="1.0" encoding="UTF-8"?>
<Dictionary xmlns="http://www.opengis.net/gml" xmlns:gml="http://www.opengis.net/gml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/gml ../gmlSimpleDictionaryProfile.xsd" gml:id="RangeMeaningDictionary">
<!-- Primary editor: Arliss Whiteside. Last updated 2005-11-16 -->
<name>Range Meaning standard values</name>
<!-- ===================================================== -->
<dictionaryEntry>
<Definition gml:id="exact">
<description>Any value between and including minimumValue and maximiumValue is valid. </description>
<name codeSpace="urn:ogc:tc:urn:doc:rp:05-010">urn:ogc:def:rangeMeaning:OGC:1.0:exact</name>
</Definition>
</dictionaryEntry>
<!-- ===================================================== -->
<dictionaryEntry>
<Definition gml:id="wraparound">
<description>The axis is continuous with values wrapping around at the minimumValue and maximumValue. Values with the same meaning repeat modulo the difference between maximumValue and minimumValue. </description>
<name codeSpace="urn:ogc:tc:urn:doc:rp:05-010">urn:ogc:def:rangeMeaning:OGC:1.0:wraparound</name>
</Definition>
</dictionaryEntry>
</Dictionary>
<?xml version="1.0" encoding="UTF-8"?>
<Dictionary xmlns="http://www.opengis.net/gml" xmlns:gml="http://www.opengis.net/gml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/gml ../gmlSimpleDictionaryProfile.xsd" gml:id="VerticalDatumType">
<!-- Primary editor: Arliss Whiteside. Last updated 2005-11-16-->
<name>Vertical Datum Type standard values</name>
<!-- ===================================================== -->
<dictionaryEntry>
<Definition gml:id="geoidal">
<description>The zero value of the associated vertical coordinate system axis is defined to approximate a constant potential surface, usually the geoid. Such a reference surface is usually determined by a national or scientific authority, and is then a well-known, named datum. </description>
<name codeSpace="urn:ogc:tc:urn:doc:rp:05-010">urn:ogc:def:pixelInCell:OGC:1.0:geoidal</name>
</Definition>
</dictionaryEntry>
<dictionaryEntry>
<!-- ===================================================== -->
<Definition gml:id="depth">
<description>The zero point of the vertical axis is defined by a surface that has meaning for the purpose which the associated vertical measurements are used for. For hydrographic charts, this is often a predicted nominal sea surface (i.e., without waves or other wind and current effects) that occurs at low tide. </description>
<name codeSpace="urn:ogc:tc:urn:doc:rp:05-010">urn:ogc:def:pixelInCell:OGC:1.0:depth</name>
</Definition>
</dictionaryEntry>
<!-- ===================================================== -->
<dictionaryEntry>
<Definition gml:id="barometric">
<description>Atmospheric pressure is the basis for the definition of the origin of the associated vertical coordinate system axis. </description>
<name codeSpace="urn:ogc:tc:urn:doc:rp:05-010">urn:ogc:def:pixelInCell:OGC:1.0:barometric</name>
</Definition>
</dictionaryEntry>
<dictionaryEntry>
<!-- ===================================================== -->
<Definition gml:id="otherSurface">
<description>In some cases, e.g. oil exploration and production, a geological feature, such as the top or bottom of a geologically identifiable and meaningful subsurface layer, is used as a vertical datum. Other variations to the above three vertical datum types may exist and are all included in this type. </description>
<name codeSpace="urn:ogc:tc:urn:doc:rp:05-010">urn:ogc:def:pixelInCell:OGC:1.0:otherSurface</name>
</Definition>
</dictionaryEntry>
</Dictionary>
<?xml version="1.0" encoding="UTF-8"?>
<schema targetNamespace="http://www.opengis.net/gml" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:sch="http://www.ascc.net/xml/schematron" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:gml="http://www.opengis.net/gml" elementFormDefault="qualified" version="3.1.1">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd:basicTypes:3.1.1">basicTypes.xsd</appinfo>
<documentation>Subset of basicTypes.xsd for GML 3.1.1 Simple Dictionary profile. Primary editor: Arliss Whiteside. Last updated 2005-10-14 </documentation>
</annotation>
<!-- =========================================================== -->
<!-- =========================================================== -->
<complexType name="CodeType">
<annotation>
<documentation>Name or code with an (optional) authority. Text token.
If the codeSpace attribute is present, then its value should identify a dictionary, thesaurus or authority for the term, such as the organisation who assigned the value, or the dictionary from which it is taken.
A text string with an optional codeSpace attribute. </documentation>
</annotation>
<simpleContent>
<extension base="string">
<attribute name="codeSpace" type="anyURI" use="optional"/>
</extension>
</simpleContent>
</complexType>
<!-- ============================================================ -->
</schema>
<?xml version="1.0" encoding="UTF-8"?>
<schema targetNamespace="http://www.opengis.net/gml" elementFormDefault="qualified" version="3.1.1" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd::3.1.1"/>
<documentation>Subset of dictionary.xsd for GML 3.1.1 Simple Dictionary profile. Primary editor: Primary editor: Arliss Whiteside. Last updated 2005-10-14 </documentation>
</annotation>
<!-- ========================================================
includes and imports
======================================================== -->
<include schemaLocation="gmlBase.xsd"/>
<!-- ===================================================== -->
<!-- ===================================================== -->
<!-- === Dictionary and Definition components === -->
<!-- ===================================================== -->
<element name="Definition" type="gml:DefinitionType" substitutionGroup="gml:_GML"/>
<!-- ===================================================== -->
<complexType name="DefinitionType">
<annotation>
<documentation>A definition, which can be included in or referenced by a dictionary. In this extended type, the inherited "description" optional element can hold the definition whenever only text is needed. The inherited "name" elements can provide one or more brief terms for which this is the definition. The inherited "metaDataProperty" elements can be used to reference or include more information about this definition.
The gml:id attribute is required - it must be possible to reference this definition using this handle. </documentation>
</annotation>
<complexContent>
<restriction base="gml:AbstractGMLType">
<sequence>
<element ref="gml:description" minOccurs="0"/>
<element ref="gml:name" maxOccurs="unbounded"/>
</sequence>
<attribute ref="gml:id" use="required"/>
</restriction>
</complexContent>
</complexType>
<!-- ===================================================== -->
<element name="Dictionary" type="gml:DictionaryType" substitutionGroup="gml:Definition"/>
<!-- ===================================================== -->
<complexType name="DictionaryType">
<annotation>
<documentation>A non-abstract bag that is specialized for use as a dictionary which contains a set of definitions. These definitions are referenced from other places, in the same and different XML documents. In this restricted type, the inherited optional "description" element can be used for a description of this dictionary. The inherited optional "name" element can be used for the name(s) of this dictionary. The inherited "metaDataProperty" elements can be used to reference or contain more information about this dictionary. The inherited required gml:id attribute allows the dictionary to be referenced using this handle. </documentation>
</annotation>
<complexContent>
<extension base="gml:DefinitionType">
<sequence minOccurs="0" maxOccurs="unbounded">
<choice>
<element ref="gml:dictionaryEntry">
<annotation>
<documentation>An entry in this dictionary. The content of an entry can itself be a lower level dictionary or definition collection. This element follows the standard GML property model, so the value may be provided directly or by reference. Note that if the value is provided by reference, this definition does not carry a handle (gml:id) in this context, so does not allow external references to this specific entry in this context. When used in this way the referenced definition will usually be in a dictionary in the same XML document. </documentation>
</annotation>
</element>
</choice>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- ===================================================== -->
<element name="dictionaryEntry" type="gml:DictionaryEntryType"/>
<!-- ===================================================== -->
<complexType name="DictionaryEntryType">
<annotation>
<documentation>An entry in a dictionary of definitions. An instance of this type contains one definition object. Specialized descendents of this dictionaryEntry might be restricted in an application schema to allow only including specified types of definitions as valid entries in a dictionary. </documentation>
</annotation>
<sequence>
<element ref="gml:Definition">
<annotation>
<documentation>This element in a dictionary entry contains the actual definition. </documentation>
</annotation>
</element>
</sequence>
</complexType>
</schema>
<?xml version="1.0" encoding="UTF-8"?>
<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">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd:gmlBase:3.1.1"/>
<documentation>Subset of gmlBase.xsd for GML 3.1.1 Simple Dictionary profile. Primary editor: Primary editor: Arliss Whiteside. Last updated 2005-10-14
Copyright (c) Open Geospatial Consortium, Inc. (2005) </documentation>
</annotation>
<!-- ==============================================================
includes and imports
============================================================== -->
<include schemaLocation="basicTypes.xsd"/>
<!-- =========================================================== -->
<!-- ==================== Objects ================================ -->
<!-- =========================================================== -->
<!-- =========== Abstract "Object" is "anyType" ============= -->
<!-- ===== Global element at the head of the "Object" substitution group ======== -->
<element name="_Object" abstract="true">
<annotation>
<documentation>This abstract element is the head of a substitutionGroup hierararchy which may contain either simpleContent or complexContent elements. It is used to assert the model position of "class" elements declared in other GML schemas.</documentation>
</annotation>
</element>
<!-- ============================================================= -->
<!-- =========== Abstract "GMLobject" supertype ========================= -->
<element name="_GML" type="gml:AbstractGMLType" abstract="true" substitutionGroup="gml:_Object">
<annotation>
<documentation>Global element which acts as the head of a substitution group that may include any element which is a GML feature, object, geometry or complex value</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<group name="StandardObjectProperties">
<annotation>
<documentation>This content model group makes it easier to construct types that derive from AbstractGMLType and its descendents "by restriction". A reference to the group saves having to enumerate the standard object properties.</documentation>
</annotation>
<sequence>
<element ref="gml:description" minOccurs="0"/>
<element ref="gml:name" minOccurs="0" maxOccurs="unbounded">
<annotation>
<documentation>Multiple names may be provided. These will often be distinguished by being assigned by different authorities, as indicated by the value of the codeSpace attribute. In an instance document there will usually only be one name per authority.</documentation>
</annotation>
</element>
</sequence>
</group>
<!-- =========================================================== -->
<complexType name="AbstractGMLType" abstract="true">
<annotation>
<documentation>All complexContent GML elements are directly or indirectly derived from this abstract supertype to establish a hierarchy of GML types that may be distinguished from other XML types by their ancestry. Elements in this hierarchy may have an ID and are thus referenceable.</documentation>
</annotation>
<sequence>
<group ref="gml:StandardObjectProperties"/>
</sequence>
<attribute ref="gml:id" use="optional"/>
</complexType>
<!-- =========================================================== -->
<!-- ==========================================================
global attribute, attribute group and element declarations
============================================================ -->
<attribute name="id" type="ID">
<annotation>
<documentation>Database handle for the object. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods. This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.</documentation>
</annotation>
</attribute>
<!-- =========================================================== -->
<element name="name" type="gml:CodeType">
<annotation>
<documentation>Label for the object, normally a descriptive name. An object may have several names, typically assigned by different authorities. The authority for a name is indicated by the value of its (optional) codeSpace attribute. The name may or may not be unique, as determined by the rules of the organization responsible for the codeSpace.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<element name="description" type="string">
<annotation>
<documentation>Contains a simple text description of the object.</documentation>
<documentation>Restricted to only allow a text string, as done in GML 3.2. </documentation>
</annotation>
</element>
<!-- ===================================================== -->
</schema>
<?xml version="1.0" encoding="UTF-8"?>
<schema targetNamespace="http://www.opengis.net/gml"
xmlns:gml="http://www.opengis.net/gml"
xmlns="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified" version="1.0.0">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd:gml:3.1.1">gml.xsd</appinfo>
<documentation>GML 3.1.1 profile for Dictionary. Primary editor: Arliss Whiteside. Last updated 2005-10-11
Copyright (c) Open Geospatial Consortium, Inc. (2005) </documentation>
</annotation>
<!-- ============================================================== -->
<include schemaLocation="dictionary.xsd"/>
<!-- ============================================================== -->
</schema>
\ No newline at end of file
This set of XML Schema Documents for GML Version 3.1.1 has been edited
to reflect the corrigendum to documents 0GC 03-105r1 and OGC 04-092r4
that is based on the change requests:
OGC 05-068r1 "Store xlinks.xsd file at a fixed location"
OGC 05-081r2 "Change to use relative paths"
OGC 05-105 "Remove description and copyright tags from XML schema documents"
Arliss Whiteside, 2005-11-22
<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:sch="http://www.ascc.net/xml/schematron" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:gml="http://www.opengis.net/gml" targetNamespace="http://www.opengis.net/gml" elementFormDefault="qualified" version="3.1.1">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd:basicTypes:3.1.1">basicTypes.xsd</appinfo>
<documentation>
Generic simpleContent components for use in GML
Copyright (c) 2005 OGC, All Rights Reserved.
For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr
</documentation>
</annotation>
<!-- =========================================================== -->
<simpleType name="NullEnumeration">
<annotation>
<documentation> Some common reasons for a null value:
innapplicable - the object does not have a value
missing - The correct value is not readily available to the sender of this data.
Furthermore, a correct value may not exist.
template - the value will be available later
unknown - The correct value is not known to, and not computable by, the sender of this data.
However, a correct value probably exists.
withheld - the value is not divulged
other:reason - as indicated by "reason" string
Specific communities may agree to assign more strict semantics when these terms are used in a particular context.
</documentation>
</annotation>
<union>
<simpleType>
<restriction base="string">
<enumeration value="inapplicable"/>
<enumeration value="missing"/>
<enumeration value="template"/>
<enumeration value="unknown"/>
<enumeration value="withheld"/>
</restriction>
</simpleType>
<simpleType>
<restriction base="string">
<pattern value="other:\w{2,}"/>
</restriction>
</simpleType>
</union>
</simpleType>
<!-- =========================================================== -->
<simpleType name="NullType">
<annotation>
<documentation>Utility type for null elements. The value may be selected from one of the enumerated tokens, or may be a URI in which case this should identify a resource which describes the reason for the null. </documentation>
</annotation>
<union memberTypes="gml:NullEnumeration anyURI"/>
</simpleType>
<!-- =========================================================== -->
<element name="Null" type="gml:NullType"/>
<!-- ===================================================== -->
<simpleType name="SignType">
<annotation>
<documentation>Utility type used in various places
- e.g. to indicate the direction of topological objects;
"+" for forwards, or "-" for backwards.</documentation>
</annotation>
<restriction base="string">
<enumeration value="-"/>
<enumeration value="+"/>
</restriction>
</simpleType>
<!-- =========================================================== -->
<simpleType name="booleanOrNull">
<annotation>
<documentation>Union of the XML Schema boolean type and the GML Nulltype. An element which uses this type may have content which is either a boolean {0,1,true,false} or a value from Nulltype</documentation>
</annotation>
<union memberTypes="gml:NullEnumeration boolean anyURI"/>
</simpleType>
<!-- =========================================================== -->
<simpleType name="booleanOrNullList">
<annotation>
<documentation>XML List based on the union type defined above. An element declared with this type contains a space-separated list of boolean values {0,1,true,false} with null values interspersed as needed</documentation>
</annotation>
<list itemType="gml:booleanOrNull"/>
</simpleType>
<!-- =========================================================== -->
<simpleType name="booleanList">
<annotation>
<documentation>XML List based on XML Schema boolean type. An element of this type contains a space-separated list of boolean values {0,1,true,false}</documentation>
</annotation>
<list itemType="boolean"/>
</simpleType>
<!-- =========================================================== -->
<simpleType name="stringOrNull">
<annotation>
<documentation>Union of the XML Schema string type and the GML Nulltype. An element which uses this type may have content which is either a string or a value from Nulltype. Note that a "string" may contain whitespace. </documentation>
</annotation>
<union memberTypes="gml:NullEnumeration string anyURI"/>
</simpleType>
<!-- =========================================================== -->
<simpleType name="NameOrNull">
<annotation>
<documentation>Union of the XML Schema Name type and the GML Nulltype. An element which uses this type may have content which is either a Name or a value from Nulltype. Note that a "Name" may not contain whitespace. </documentation>
</annotation>
<union memberTypes="gml:NullEnumeration Name anyURI"/>
</simpleType>
<!-- =========================================================== -->
<simpleType name="NameOrNullList">
<annotation>
<documentation>XML List based on the union type defined above. An element declared with this type contains a space-separated list of Name values with null values interspersed as needed</documentation>
</annotation>
<list itemType="gml:NameOrNull"/>
</simpleType>
<!-- =========================================================== -->
<simpleType name="NameList">
<annotation>
<documentation>XML List based on XML Schema Name type. An element of this type contains a space-separated list of Name values</documentation>
</annotation>
<list itemType="Name"/>
</simpleType>
<!-- =========================================================== -->
<simpleType name="doubleOrNull">
<annotation>
<documentation>Union of the XML Schema double type and the GML Nulltype. An element which uses this type may have content which is either a double or a value from Nulltype</documentation>
</annotation>
<union memberTypes="gml:NullEnumeration double anyURI"/>
</simpleType>
<!-- =========================================================== -->
<simpleType name="doubleOrNullList">
<annotation>
<documentation>XML List based on the union type defined above. An element declared with this type contains a space-separated list of double values with null values interspersed as needed</documentation>
</annotation>
<list itemType="gml:doubleOrNull"/>
</simpleType>
<!-- =========================================================== -->
<simpleType name="doubleList">
<annotation>
<documentation>XML List based on XML Schema double type. An element of this type contains a space-separated list of double values</documentation>
</annotation>
<list itemType="double"/>
</simpleType>
<!-- =========================================================== -->
<simpleType name="integerOrNull">
<annotation>
<documentation>Union of the XML Schema integer type and the GML Nulltype. An element which uses this type may have content which is either an integer or a value from Nulltype</documentation>
</annotation>
<union memberTypes="gml:NullEnumeration integer anyURI"/>
</simpleType>
<!-- =========================================================== -->
<simpleType name="integerOrNullList">
<annotation>
<documentation>XML List based on the union type defined above. An element declared with this type contains a space-separated list of integer values with null values interspersed as needed</documentation>
</annotation>
<list itemType="gml:integerOrNull"/>
</simpleType>
<!-- =========================================================== -->
<simpleType name="integerList">
<annotation>
<documentation>XML List based on XML Schema integer type. An element of this type contains a space-separated list of integer values</documentation>
</annotation>
<list itemType="integer"/>
</simpleType>
<!-- =========================================================== -->
<complexType name="CodeType">
<annotation>
<documentation>Name or code with an (optional) authority. Text token.
If the codeSpace attribute is present, then its value should identify a dictionary, thesaurus
or authority for the term, such as the organisation who assigned the value,
or the dictionary from which it is taken.
A text string with an optional codeSpace attribute. </documentation>
</annotation>
<simpleContent>
<extension base="string">
<attribute name="codeSpace" type="anyURI" use="optional"/>
</extension>
</simpleContent>
</complexType>
<!-- =========================================================== -->
<complexType name="CodeListType">
<annotation>
<documentation>List of values on a uniform nominal scale. List of text tokens.
In a list context a token should not include any spaces, so xsd:Name is used instead of xsd:string.
If a codeSpace attribute is present, then its value is a reference to
a Reference System for the value, a dictionary or code list.</documentation>
</annotation>
<simpleContent>
<extension base="gml:NameList">
<attribute name="codeSpace" type="anyURI" use="optional"/>
</extension>
</simpleContent>
</complexType>
<!-- =========================================================== -->
<complexType name="CodeOrNullListType">
<annotation>
<documentation>List of values on a uniform nominal scale. List of text tokens.
In a list context a token should not include any spaces, so xsd:Name is used instead of xsd:string.
A member of the list may be a typed null.
If a codeSpace attribute is present, then its value is a reference to
a Reference System for the value, a dictionary or code list.</documentation>
</annotation>
<simpleContent>
<extension base="gml:NameOrNullList">
<attribute name="codeSpace" type="anyURI" use="optional"/>
</extension>
</simpleContent>
</complexType>
<!-- =========================================================== -->
<complexType name="MeasureType">
<annotation>
<documentation>Number with a scale.
The value of uom (Units Of Measure) attribute is a reference to a Reference System for the amount, either a ratio or position scale. </documentation>
</annotation>
<simpleContent>
<extension base="double">
<attribute name="uom" type="anyURI" use="required"/>
</extension>
</simpleContent>
</complexType>
<!-- =========================================================== -->
<complexType name="MeasureListType">
<annotation>
<documentation>List of numbers with a uniform scale.
The value of uom (Units Of Measure) attribute is a reference to
a Reference System for the amount, either a ratio or position scale. </documentation>
</annotation>
<simpleContent>
<extension base="gml:doubleList">
<attribute name="uom" type="anyURI" use="required"/>
</extension>
</simpleContent>
</complexType>
<!-- =========================================================== -->
<complexType name="MeasureOrNullListType">
<annotation>
<documentation>List of numbers with a uniform scale.
A member of the list may be a typed null.
The value of uom (Units Of Measure) attribute is a reference to
a Reference System for the amount, either a ratio or position scale. </documentation>
</annotation>
<simpleContent>
<extension base="gml:doubleOrNullList">
<attribute name="uom" type="anyURI" use="required"/>
</extension>
</simpleContent>
</complexType>
<!-- =========================================================== -->
<complexType name="CoordinatesType">
<annotation>
<documentation>Tables or arrays of tuples.
May be used for text-encoding of values from a table.
Actually just a string, but allows the user to indicate which characters are used as separators.
The value of the 'cs' attribute is the separator for coordinate values,
and the value of the 'ts' attribute gives the tuple separator (a single space by default);
the default values may be changed to reflect local usage.
Defaults to CSV within a tuple, space between tuples.
However, any string content will be schema-valid. </documentation>
</annotation>
<simpleContent>
<extension base="string">
<attribute name="decimal" type="string" default="."/>
<attribute name="cs" type="string" default=","/>
<attribute name="ts" type="string" default="&#x20;"/>
</extension>
</simpleContent>
</complexType>
<!-- =========================================================== -->
<simpleType name="NCNameList">
<annotation>
<documentation>A set of values, representing a list of token with the lexical value space of NCName. The tokens are seperated by whitespace.</documentation>
</annotation>
<list itemType="NCName"/>
</simpleType>
<!-- ============================================================== -->
<simpleType name="QNameList">
<annotation>
<documentation>A set of values, representing a list of token with the lexical value space of QName. The tokens are seperated by whitespace.</documentation>
</annotation>
<list itemType="QName"/>
</simpleType>
<!-- ============================================================== -->
</schema>
<?xml version="1.0" encoding="UTF-8"?>
<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" xml:lang="en">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd:coordinateOperations:3.1.1"/>
<documentation>How to encode coordinate operation definitions. Builds on referenceSystems.xsd to encode the data needed to define coordinate operations, including Transformations, Conversions, and other specific subtypes of operations.
Copyright (c) 2002-2005 OGC, All Rights Reserved. For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr
This schema encodes the Coordinate Operation (CC_) package of the extended UML Model for OGC Abstract Specification Topic 2: Spatial Referencing by Coordinates. That UML model is adapted from ISO 19111 - Spatial referencing by coordinates, as described in Annex C of Topic 2.
Caution: The CRS package in GML 3.1 and GML 3.1.1 is preliminary, and is expected to undergo some modifications that are not backward compatible during the development of GML 3.2 (ISO 19136). The GML 3.2 package will implement the model described in the revised version of ISO 19111. </documentation>
</annotation>
<!-- ======================================================
includes and imports
====================================================== -->
<include schemaLocation="referenceSystems.xsd"/>
<include schemaLocation="dataQuality.xsd"/>
<!-- ======================================================
elements and types
====================================================== -->
<element name="_CoordinateOperation" type="gml:AbstractCoordinateOperationType" abstract="true" substitutionGroup="gml:Definition"/>
<!-- =================================================== -->
<complexType name="AbstractCoordinateOperationBaseType" abstract="true">
<annotation>
<documentation>Basic encoding for coordinate operation objects, simplifying and restricting the DefinitionType as needed. </documentation>
</annotation>
<complexContent>
<restriction base="gml:DefinitionType">
<sequence>
<element ref="gml:metaDataProperty" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:coordinateOperationName"/>
</sequence>
<attribute ref="gml:id" use="required"/>
</restriction>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="coordinateOperationName" type="gml:CodeType" substitutionGroup="gml:name">
<annotation>
<documentation>The name by which this coordinate operation is identified. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<complexType name="AbstractCoordinateOperationType" abstract="true">
<annotation>
<documentation>A mathematical operation on coordinates that transforms or converts coordinates to another coordinate reference system. Many but not all coordinate operations (from CRS A to CRS B) also uniquely define the inverse operation (from CRS B to CRS A). In some cases, the operation method algorithm for the inverse operation is the same as for the forward algorithm, but the signs of some operation parameter values must be reversed. In other cases, different algorithms are required for the forward and inverse operations, but the same operation parameter values are used. If (some) entirely different parameter values are needed, a different coordinate operation shall be defined.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoordinateOperationBaseType">
<sequence>
<element ref="gml:coordinateOperationID" minOccurs="0" maxOccurs="unbounded">
<annotation>
<documentation>Set of alternative identifications of this coordinate operation. The first coordinateOperationID, if any, is normally the primary identification code, and any others are aliases. </documentation>
</annotation>
</element>
<element ref="gml:remarks" minOccurs="0">
<annotation>
<documentation>Comments on or information about this coordinate operation, including source information. </documentation>
</annotation>
</element>
<element ref="gml:operationVersion" minOccurs="0"/>
<element ref="gml:validArea" minOccurs="0"/>
<element ref="gml:scope" minOccurs="0"/>
<element ref="gml:_positionalAccuracy" minOccurs="0" maxOccurs="unbounded">
<annotation>
<documentation>Unordered set of estimates of the impact of this coordinate operation on point position accuracy. Gives position error estimates for target coordinates of this coordinate operation, assuming no errors in source coordinates. </documentation>
</annotation>
</element>
<element ref="gml:sourceCRS" minOccurs="0"/>
<element ref="gml:targetCRS" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="coordinateOperationID" type="gml:IdentifierType">
<annotation>
<documentation>An identification of a coordinate operation. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="operationVersion" type="string">
<annotation>
<documentation>Version of the coordinate transformation (i.e., instantiation due to the stochastic nature of the parameters). Mandatory when describing a transformation, and should not be supplied for a conversion. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="sourceCRS" type="gml:CRSRefType">
<annotation>
<documentation>Association to the source CRS (coordinate reference system) of this coordinate operation. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="targetCRS" type="gml:CRSRefType">
<annotation>
<documentation>Association to the target CRS (coordinate reference system) of this coordinate operation. For constraints on multiplicity of "sourceCRS" and "targetCRS", see UML model of Coordinate Operation package in OGC Abstract Specification topic 2. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="coordinateOperationRef" type="gml:CoordinateOperationRefType"/>
<!-- =================================================== -->
<complexType name="CoordinateOperationRefType">
<annotation>
<documentation>Association to a coordinate operation, either referencing or containing the definition of that coordinate operation. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:_CoordinateOperation"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="ConcatenatedOperation" type="gml:ConcatenatedOperationType" substitutionGroup="gml:_CoordinateOperation"/>
<!-- =================================================== -->
<complexType name="ConcatenatedOperationType">
<annotation>
<documentation>An ordered sequence of two or more single coordinate operations. The sequence of operations is constrained by the requirement that the source coordinate reference system of step (n+1) must be the same as the target coordinate reference system of step (n). The source coordinate reference system of the first step and the target coordinate reference system of the last step are the source and target coordinate reference system associated with the concatenated operation. Instead of a forward operation, an inverse operation may be used for one or more of the operation steps mentioned above, if the inverse operation is uniquely defined by the forward operation.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoordinateOperationType">
<sequence>
<element ref="gml:usesSingleOperation" minOccurs="2" maxOccurs="unbounded">
<annotation>
<documentation>Ordered sequence of associations to the two or more single operations used by this concatenated operation. </documentation>
</annotation>
</element>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="usesSingleOperation" type="gml:SingleOperationRefType">
<annotation>
<documentation>Association to a single operation. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="concatenatedOperationRef" type="gml:ConcatenatedOperationRefType"/>
<!-- =================================================== -->
<complexType name="ConcatenatedOperationRefType">
<annotation>
<documentation>Association to a concatenated operation, either referencing or containing the definition of that concatenated operation. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:ConcatenatedOperation"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="_SingleOperation" type="gml:AbstractCoordinateOperationType" abstract="true" substitutionGroup="gml:_CoordinateOperation">
<annotation>
<documentation>A single (not concatenated) coordinate operation. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="singleOperationRef" type="gml:SingleOperationRefType"/>
<!-- =================================================== -->
<complexType name="SingleOperationRefType">
<annotation>
<documentation>Association to a single operation, either referencing or containing the definition of that single operation. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:_SingleOperation"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="PassThroughOperation" type="gml:PassThroughOperationType" substitutionGroup="gml:_SingleOperation"/>
<!-- =================================================== -->
<complexType name="PassThroughOperationType">
<annotation>
<documentation>A pass-through operation specifies that a subset of a coordinate tuple is subject to a specific coordinate operation. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoordinateOperationType">
<sequence>
<element ref="gml:modifiedCoordinate" maxOccurs="unbounded">
<annotation>
<documentation>Ordered sequence of positive integers defining the positions in a coordinate tuple of the coordinates affected by this pass-through operation. </documentation>
</annotation>
</element>
<element ref="gml:usesOperation"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="modifiedCoordinate" type="positiveInteger">
<annotation>
<documentation>A positive integer defining a position in a coordinate tuple. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="usesOperation" type="gml:OperationRefType">
<annotation>
<documentation>Association to the operation applied to the specified ordinates. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="passThroughOperationRef" type="gml:PassThroughOperationRefType"/>
<!-- =================================================== -->
<complexType name="PassThroughOperationRefType">
<annotation>
<documentation>Association to a pass through operation, either referencing or containing the definition of that pass through operation. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:PassThroughOperation"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="_Operation" type="gml:AbstractCoordinateOperationType" abstract="true" substitutionGroup="gml:_SingleOperation">
<annotation>
<documentation>A parameterized mathematical operation on coordinates that transforms or converts coordinates to another coordinate reference system. This coordinate operation uses an operation method, usually with associated parameter values. However, operation methods and parameter values are directly associated with concrete subtypes, not with this abstract type.
This abstract complexType shall not be directly used, extended, or restricted in a compliant Application Schema. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="operationRef" type="gml:OperationRefType"/>
<!-- =================================================== -->
<complexType name="OperationRefType">
<annotation>
<documentation>Association to an abstract operation, either referencing or containing the definition of that operation. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:_Operation"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<!-- =================================================== -->
<element name="_GeneralConversion" type="gml:AbstractGeneralConversionType" abstract="true" substitutionGroup="gml:_Operation"/>
<!-- =================================================== -->
<complexType name="AbstractGeneralConversionType" abstract="true">
<annotation>
<documentation>An abstract operation on coordinates that does not include any change of datum. The best-known example of a coordinate conversion is a map projection. The parameters describing coordinate conversions are defined rather than empirically derived. Note that some conversions have no parameters.
This abstract complexType is expected to be extended for well-known operation methods with many Conversion instances, in Application Schemas that define operation-method-specialized element names and contents. This conversion uses an operation method, usually with associated parameter values. However, operation methods and parameter values are directly associated with concrete subtypes, not with this abstract type. All concrete types derived from this type shall extend this type to include a "usesMethod" element that references the "OperationMethod" element. Similarly, all concrete types derived from this type shall extend this type to include zero or more elements each named "uses...Value" that each use the type of an element substitutable for the "_generalParameterValue" element. </documentation>
</annotation>
<complexContent>
<restriction base="gml:AbstractCoordinateOperationType">
<sequence>
<element ref="gml:metaDataProperty" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:coordinateOperationName"/>
<element ref="gml:coordinateOperationID" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:remarks" minOccurs="0"/>
<element ref="gml:validArea" minOccurs="0"/>
<element ref="gml:scope" minOccurs="0"/>
<element ref="gml:_positionalAccuracy" minOccurs="0" maxOccurs="unbounded"/>
</sequence>
<attribute ref="gml:id" use="required"/>
</restriction>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="generalConversionRef" type="gml:GeneralConversionRefType"/>
<!-- =================================================== -->
<complexType name="GeneralConversionRefType">
<annotation>
<documentation>Association to a general conversion, either referencing or containing the definition of that conversion. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:_GeneralConversion"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="Conversion" type="gml:ConversionType" substitutionGroup="gml:_GeneralConversion"/>
<!-- =================================================== -->
<complexType name="ConversionType">
<annotation>
<documentation>A concrete operation on coordinates that does not include any change of Datum. The best-known example of a coordinate conversion is a map projection. The parameters describing coordinate conversions are defined rather than empirically derived. Note that some conversions have no parameters.
This concrete complexType can be used with all operation methods, without using an Application Schema that defines operation-method-specialized element names and contents, especially for methods with only one Conversion instance. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGeneralConversionType">
<sequence>
<element ref="gml:usesMethod"/>
<element ref="gml:usesValue" minOccurs="0" maxOccurs="unbounded">
<annotation>
<documentation>Unordered list of composition associations to the set of parameter values used by this conversion operation. </documentation>
</annotation>
</element>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="usesMethod" type="gml:OperationMethodRefType">
<annotation>
<documentation>Association to the operation method used by this coordinate operation. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="usesValue" type="gml:ParameterValueType">
<annotation>
<documentation>Composition association to a parameter value used by this coordinate operation. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="conversionRef" type="gml:ConversionRefType"/>
<!-- =================================================== -->
<complexType name="ConversionRefType">
<annotation>
<documentation>Association to a concrete general-purpose conversion, either referencing or containing the definition of that conversion. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:Conversion"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="_GeneralTransformation" type="gml:AbstractGeneralTransformationType" abstract="true" substitutionGroup="gml:_Operation"/>
<!-- =================================================== -->
<complexType name="AbstractGeneralTransformationType" abstract="true">
<annotation>
<documentation>An abstract operation on coordinates that usually includes a change of Datum. The parameters of a coordinate transformation are empirically derived from data containing the coordinates of a series of points in both coordinate reference systems. This computational process is usually "over-determined", allowing derivation of error (or accuracy) estimates for the transformation. Also, the stochastic nature of the parameters may result in multiple (different) versions of the same coordinate transformation.
This abstract complexType is expected to be extended for well-known operation methods with many Transformation instances, in Application Schemas that define operation-method-specialized value element names and contents. This transformation uses an operation method with associated parameter values. However, operation methods and parameter values are directly associated with concrete subtypes, not with this abstract type. All concrete types derived from this type shall extend this type to include a "usesMethod" element that references one "OperationMethod" element. Similarly, all concrete types derived from this type shall extend this type to include one or more elements each named "uses...Value" that each use the type of an element substitutable for the "_generalParameterValue" element. </documentation>
</annotation>
<complexContent>
<restriction base="gml:AbstractCoordinateOperationType">
<sequence>
<element ref="gml:metaDataProperty" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:coordinateOperationName"/>
<element ref="gml:coordinateOperationID" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:remarks" minOccurs="0"/>
<element ref="gml:operationVersion"/>
<element ref="gml:validArea" minOccurs="0"/>
<element ref="gml:scope" minOccurs="0"/>
<element ref="gml:_positionalAccuracy" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:sourceCRS"/>
<element ref="gml:targetCRS"/>
</sequence>
<attribute ref="gml:id" use="required"/>
</restriction>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="generalTransformationRef" type="gml:GeneralTransformationRefType"/>
<!-- =================================================== -->
<complexType name="GeneralTransformationRefType">
<annotation>
<documentation>Association to a general transformation, either referencing or containing the definition of that transformation. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:_GeneralTransformation"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="Transformation" type="gml:TransformationType" substitutionGroup="gml:_GeneralTransformation"/>
<!-- =================================================== -->
<complexType name="TransformationType">
<annotation>
<documentation>A concrete operation on coordinates that usually includes a change of datum. The parameters of a coordinate transformation are empirically derived from data containing the coordinates of a series of points in both coordinate reference systems. This computational process is usually "over-determined", allowing derivation of error (or accuracy) estimates for the transformation. Also, the stochastic nature of the parameters may result in multiple (different) versions of the same coordinate transformation.
This concrete complexType can be used for all operation methods, without using an Application Schema that defines operation-method-specialized element names and contents, especially for methods with only one Transformation instance. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGeneralTransformationType">
<sequence>
<element ref="gml:usesMethod"/>
<element ref="gml:usesValue" minOccurs="0" maxOccurs="unbounded">
<annotation>
<documentation>Unordered set of composition associations to the set of parameter values used by this transformation operation. </documentation>
</annotation>
</element>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="transformationRef" type="gml:TransformationRefType"/>
<!-- =================================================== -->
<complexType name="TransformationRefType">
<annotation>
<documentation>Association to a transformation, either referencing or containing the definition of that transformation. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:Transformation"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<!-- =================================================== -->
<element name="_generalParameterValue" type="gml:AbstractGeneralParameterValueType" abstract="true"/>
<!-- =================================================== -->
<complexType name="AbstractGeneralParameterValueType" abstract="true">
<annotation>
<documentation>Abstract parameter value or group of parameter values.
This abstract complexType is expected to be extended and restricted for well-known operation methods with many instances, in Application Schemas that define operation-method-specialized element names and contents. Specific parameter value elements are directly contained in concrete subtypes, not in this abstract type. All concrete types derived from this type shall extend this type to include one "...Value" element with an appropriate type, which should be one of the element types allowed in the ParameterValueType. In addition, all derived concrete types shall extend this type to include a "valueOfParameter" element that references one element substitutable for the "OperationParameter" element. </documentation>
</annotation>
<sequence/>
</complexType>
<!-- =================================================== -->
<element name="parameterValue" type="gml:ParameterValueType" substitutionGroup="gml:_generalParameterValue"/>
<!-- =================================================== -->
<complexType name="ParameterValueType">
<annotation>
<documentation>A parameter value, ordered sequence of values, or reference to a file of parameter values. This concrete complexType can be used for operation methods without using an Application Schema that defines operation-method-specialized element names and contents, especially for methods with only one instance. This complexType can be used, extended, or restricted for well-known operation methods, especially for methods with many instances. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGeneralParameterValueType">
<sequence>
<choice>
<element ref="gml:value"/>
<element ref="gml:dmsAngleValue"/>
<element ref="gml:stringValue"/>
<element ref="gml:integerValue"/>
<element ref="gml:booleanValue"/>
<element ref="gml:valueList"/>
<element ref="gml:integerValueList"/>
<element ref="gml:valueFile"/>
</choice>
<element ref="gml:valueOfParameter"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="value" type="gml:MeasureType">
<annotation>
<documentation>Numeric value of an operation parameter, with its associated unit of measure. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="dmsAngleValue" type="gml:DMSAngleType">
<annotation>
<documentation>Value of an angle operation parameter, in either degree-minute-second format or single value format. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="stringValue" type="string">
<annotation>
<documentation>String value of an operation parameter. A string value does not have an associated unit of measure. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="integerValue" type="positiveInteger">
<annotation>
<documentation>Positive integer value of an operation parameter, usually used for a count. An integer value does not have an associated unit of measure. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="booleanValue" type="boolean">
<annotation>
<documentation>Boolean value of an operation parameter. A Boolean value does not have an associated unit of measure. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="valueList" type="gml:MeasureListType">
<annotation>
<documentation>Ordered sequence of two or more numeric values of an operation parameter list, where each value has the same associated unit of measure. An element of this type contains a space-separated sequence of double values. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="integerValueList" type="gml:integerList">
<annotation>
<documentation>Ordered sequence of two or more integer values of an operation parameter list, usually used for counts. These integer values do not have an associated unit of measure. An element of this type contains a space-separated sequence of integer values. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="valueFile" type="anyURI">
<annotation>
<documentation>Reference to a file or a part of a file containing one or more parameter values, each numeric value with its associated unit of measure. When referencing a part of a file, that file must contain multiple identified parts, such as an XML encoded document. Furthermore, the referenced file or part of a file can reference another part of the same or different files, as allowed in XML documents. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="valueOfParameter" type="gml:OperationParameterRefType">
<annotation>
<documentation>Association to the operation parameter that this is a value of. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<!-- =================================================== -->
<element name="parameterValueGroup" type="gml:ParameterValueGroupType" substitutionGroup="gml:_generalParameterValue"/>
<!-- =================================================== -->
<complexType name="ParameterValueGroupType">
<annotation>
<documentation>A group of related parameter values. The same group can be repeated more than once in a Conversion, Transformation, or higher level parameterValueGroup, if those instances contain different values of one or more parameterValues which suitably distinquish among those groups. This concrete complexType can be used for operation methods without using an Application Schema that defines operation-method-specialized element names and contents, especially for methods with only one instance. This complexType can be used, extended, or restricted for well-known operation methods, especially for methods with many instances. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGeneralParameterValueType">
<sequence>
<element ref="gml:includesValue" minOccurs="2" maxOccurs="unbounded">
<annotation>
<documentation>Unordered set of composition associations to the parameter values and groups of values included in this group. </documentation>
</annotation>
</element>
<element ref="gml:valuesOfGroup"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="includesValue" type="gml:AbstractGeneralParameterValueType" substitutionGroup="gml:_generalParameterValue">
<annotation>
<documentation>A composition association to a parameter value or group of values included in this group. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="valuesOfGroup" type="gml:OperationParameterGroupRefType">
<annotation>
<documentation>Association to the operation parameter group for which this element provides parameter values. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<!-- =================================================== -->
<element name="OperationMethod" type="gml:OperationMethodType" substitutionGroup="gml:Definition"/>
<!-- =================================================== -->
<complexType name="OperationMethodBaseType" abstract="true">
<annotation>
<documentation>Basic encoding for operation method objects, simplifying and restricting the DefinitionType as needed. </documentation>
</annotation>
<complexContent>
<restriction base="gml:DefinitionType">
<sequence>
<element ref="gml:metaDataProperty" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:methodName"/>
</sequence>
<attribute ref="gml:id" use="required"/>
</restriction>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="methodName" type="gml:CodeType" substitutionGroup="gml:name">
<annotation>
<documentation>The name by which this operation method is identified. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<complexType name="OperationMethodType">
<annotation>
<documentation>Definition of an algorithm used to perform a coordinate operation. Most operation methods use a number of operation parameters, although some coordinate conversions use none. Each coordinate operation using the method assigns values to these parameters. </documentation>
</annotation>
<complexContent>
<extension base="gml:OperationMethodBaseType">
<sequence>
<element ref="gml:methodID" minOccurs="0" maxOccurs="unbounded">
<annotation>
<documentation>Set of alternative identifications of this operation method. The first methodID, if any, is normally the primary identification code, and any others are aliases. </documentation>
</annotation>
</element>
<element ref="gml:remarks" minOccurs="0">
<annotation>
<documentation>Comments on or information about this operation method, including source information.</documentation>
</annotation>
</element>
<element ref="gml:methodFormula"/>
<element ref="gml:sourceDimensions"/>
<element ref="gml:targetDimensions"/>
<element ref="gml:usesParameter" minOccurs="0" maxOccurs="unbounded">
<annotation>
<documentation>Unordered list of associations to the set of operation parameters and parameter groups used by this operation method. </documentation>
</annotation>
</element>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="methodID" type="gml:IdentifierType">
<annotation>
<documentation>An identification of an operation method. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="methodFormula" type="gml:CodeType">
<annotation>
<documentation>Formula(s) used by this operation method. The value may be a reference to a publication. Note that the operation method may not be analytic, in which case this element references or contains the procedure, not an analytic formula.</documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="sourceDimensions" type="positiveInteger">
<annotation>
<documentation>Number of dimensions in the source CRS of this operation method. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="targetDimensions" type="positiveInteger">
<annotation>
<documentation>Number of dimensions in the target CRS of this operation method. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="usesParameter" type="gml:AbstractGeneralOperationParameterRefType">
<annotation>
<documentation>Association to an operation parameter or parameter group used by this operation method. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="operationMethodRef" type="gml:OperationMethodRefType"/>
<!-- =================================================== -->
<complexType name="OperationMethodRefType">
<annotation>
<documentation>Association to a concrete general-purpose operation method, either referencing or containing the definition of that method. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:OperationMethod"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<!-- =================================================== -->
<element name="_GeneralOperationParameter" type="gml:AbstractGeneralOperationParameterType" abstract="true" substitutionGroup="gml:Definition"/>
<!-- =================================================== -->
<complexType name="AbstractGeneralOperationParameterType" abstract="true">
<annotation>
<documentation>Abstract definition of a parameter or group of parameters used by an operation method. </documentation>
</annotation>
<complexContent>
<extension base="gml:DefinitionType">
<sequence>
<element ref="gml:minimumOccurs" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="minimumOccurs" type="nonNegativeInteger">
<annotation>
<documentation>The minimum number of times that values for this parameter group or parameter are required. If this attribute is omitted, the minimum number is one. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="abstractGeneralOperationParameterRef" type="gml:AbstractGeneralOperationParameterRefType"/>
<!-- =================================================== -->
<complexType name="AbstractGeneralOperationParameterRefType">
<annotation>
<documentation>Association to an operation parameter or group, either referencing or containing the definition of that parameter or group. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:_GeneralOperationParameter"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="OperationParameter" type="gml:OperationParameterType" substitutionGroup="gml:_GeneralOperationParameter"/>
<!-- =================================================== -->
<complexType name="OperationParameterBaseType" abstract="true">
<annotation>
<documentation>Basic encoding for operation parameter objects, simplifying and restricting the DefinitionType as needed. </documentation>
</annotation>
<complexContent>
<restriction base="gml:AbstractGeneralOperationParameterType">
<sequence>
<element ref="gml:metaDataProperty" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:parameterName"/>
<element ref="gml:minimumOccurs" minOccurs="0"/>
</sequence>
<attribute ref="gml:id" use="required"/>
</restriction>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="parameterName" type="gml:CodeType" substitutionGroup="gml:name">
<annotation>
<documentation>The name by which this operation parameter is identified. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<complexType name="OperationParameterType">
<annotation>
<documentation>The definition of a parameter used by an operation method. Most parameter values are numeric, but other types of parameter values are possible. This complexType is expected to be used or extended for all operation methods, without defining operation-method-specialized element names. </documentation>
</annotation>
<complexContent>
<extension base="gml:OperationParameterBaseType">
<sequence>
<element ref="gml:parameterID" minOccurs="0" maxOccurs="unbounded">
<annotation>
<documentation>Set of alternative identifications of this operation parameter. The first parameterID, if any, is normally the primary identification code, and any others are aliases. </documentation>
</annotation>
</element>
<element ref="gml:remarks" minOccurs="0">
<annotation>
<documentation>Comments on or information about this operation parameter, including source information. </documentation>
</annotation>
</element>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="parameterID" type="gml:IdentifierType">
<annotation>
<documentation>An identification of an operation parameter. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="operationParameterRef" type="gml:OperationParameterRefType"/>
<!-- =================================================== -->
<complexType name="OperationParameterRefType">
<annotation>
<documentation>Association to an operation parameter, either referencing or containing the definition of that parameter. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:OperationParameter"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="OperationParameterGroup" type="gml:OperationParameterGroupType" substitutionGroup="gml:_GeneralOperationParameter"/>
<!-- =================================================== -->
<complexType name="OperationParameterGroupBaseType" abstract="true">
<annotation>
<documentation>Basic encoding for operation parameter group objects, simplifying and restricting the DefinitionType as needed. </documentation>
</annotation>
<complexContent>
<restriction base="gml:AbstractGeneralOperationParameterType">
<sequence>
<element ref="gml:metaDataProperty" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:groupName"/>
<element ref="gml:minimumOccurs" minOccurs="0"/>
</sequence>
<attribute ref="gml:id" use="required"/>
</restriction>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="groupName" type="gml:CodeType" substitutionGroup="gml:name">
<annotation>
<documentation>The name by which this operation parameter group is identified. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<complexType name="OperationParameterGroupType">
<annotation>
<documentation>The definition of a group of parameters used by an operation method. This complexType is expected to be used or extended for all applicable operation methods, without defining operation-method-specialized element names. </documentation>
</annotation>
<complexContent>
<extension base="gml:OperationParameterGroupBaseType">
<sequence>
<element ref="gml:groupID" minOccurs="0" maxOccurs="unbounded">
<annotation>
<documentation>Set of alternative identifications of this operation parameter group. The first groupID, if any, is normally the primary identification code, and any others are aliases. </documentation>
</annotation>
</element>
<element ref="gml:remarks" minOccurs="0">
<annotation>
<documentation>Comments on or information about this operation parameter group, including source information. </documentation>
</annotation>
</element>
<element ref="gml:maximumOccurs" minOccurs="0"/>
<element ref="gml:includesParameter" minOccurs="2" maxOccurs="unbounded">
<annotation>
<documentation>Unordered list of associations to the set of operation parameters that are members of this group. </documentation>
</annotation>
</element>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="groupID" type="gml:IdentifierType">
<annotation>
<documentation>An identification of an operation parameter group. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="maximumOccurs" type="positiveInteger">
<annotation>
<documentation>The maximum number of times that values for this parameter group can be included. If this attribute is omitted, the maximum number is one. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="includesParameter" type="gml:AbstractGeneralOperationParameterRefType">
<annotation>
<documentation>Association to an operation parameter that is a member of a group. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="operationParameterGroupRef" type="gml:OperationParameterRefType"/>
<!-- =================================================== -->
<complexType name="OperationParameterGroupRefType">
<annotation>
<documentation>Association to an operation parameter, either referencing or containing the definition of that parameter. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:OperationParameterGroup"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
</schema>
<?xml version="1.0" encoding="UTF-8"?>
<schema targetNamespace="http://www.opengis.net/gml" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml" elementFormDefault="qualified" version="3.1.1" xml:lang="en">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd:coordinateReferenceSystems:3.1.1"/>
<documentation>How to encode coordinate reference system definitions. Builds on referenceSystems.xsd to encode the data needed to define coordinate reference systems, including the specific subtypes of coordinate reference systems.
Copyright (c) 2002-2005 OGC, All Rights Reserved. For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr
This schema encodes the Coordinate Reference System (SC_) package of the extended UML Model for OGC Abstract Specification Topic 2: Spatial Referencing by Coordinates, with the exception of the abstract "SC_CRS" class. The "SC_CRS" class is encoded in referenceSystems.xsd, to eliminate the (circular) references from coordinateOperations.xsd to coordinateReferenceSystems.xsd. That UML model is adapted from ISO 19111 - Spatial referencing by coordinates, as described in Annex C of Topic 2.
Caution: The CRS package in GML 3.1 and GML 3.1.1 is preliminary, and is expected to undergo some modifications that are not backward compatible during the development of GML 3.2 (ISO 19136). The GML 3.2 package will implement the model described in the revised version of ISO 19111. </documentation>
</annotation>
<!-- ======================================================
includes and imports
====================================================== -->
<include schemaLocation="coordinateSystems.xsd"/>
<include schemaLocation="datums.xsd"/>
<include schemaLocation="coordinateOperations.xsd"/>
<!-- ======================================================
elements and types
====================================================== -->
<element name="_CoordinateReferenceSystem" type="gml:AbstractReferenceSystemType" abstract="true" substitutionGroup="gml:_CRS">
<annotation>
<documentation>A coordinate reference system consists of an ordered sequence of coordinate system axes that are related to the earth through a datum. A coordinate reference system is defined by one datum and by one coordinate system. Most coordinate reference system do not move relative to the earth, except for engineering coordinate reference systems defined on moving platforms such as cars, ships, aircraft, and spacecraft. For further information, see OGC Abstract Specification Topic 2.
Coordinate reference systems are commonly divided into sub-types. The common classification criterion for sub-typing of coordinate reference systems is the way in which they deal with earth curvature. This has a direct effect on the portion of the earth's surface that can be covered by that type of CRS with an acceptable degree of error. The exception to the rule is the subtype "Temporal" which has been added by analogy. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="coordinateReferenceSystemRef" type="gml:CoordinateReferenceSystemRefType"/>
<!-- =================================================== -->
<complexType name="CoordinateReferenceSystemRefType">
<annotation>
<documentation>Association to a coordinate reference system, either referencing or containing the definition of that reference system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:_CoordinateReferenceSystem"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="CompoundCRS" type="gml:CompoundCRSType" substitutionGroup="gml:_CRS"/>
<!-- =================================================== -->
<complexType name="CompoundCRSType">
<annotation>
<documentation>A coordinate reference system describing the position of points through two or more independent coordinate reference systems. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractReferenceSystemType">
<sequence>
<element ref="gml:includesCRS" minOccurs="2" maxOccurs="unbounded">
<annotation>
<documentation>Ordered sequence of associations to all the component coordinate reference systems included in this compound coordinate reference system. </documentation>
</annotation>
</element>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="includesCRS" type="gml:CoordinateReferenceSystemRefType">
<annotation>
<documentation>An association to a component coordinate reference system included in this compound coordinate reference system. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="compoundCRSRef" type="gml:CompoundCRSRefType"/>
<!-- =================================================== -->
<complexType name="CompoundCRSRefType">
<annotation>
<documentation>Association to a compound coordinate reference system, either referencing or containing the definition of that reference system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:CompoundCRS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="GeographicCRS" type="gml:GeographicCRSType" substitutionGroup="gml:_CoordinateReferenceSystem"/>
<!-- =================================================== -->
<complexType name="GeographicCRSType">
<annotation>
<documentation>A coordinate reference system based on an ellipsoidal approximation of the geoid; this provides an accurate representation of the geometry of geographic features for a large portion of the earth's surface.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractReferenceSystemType">
<sequence>
<element ref="gml:usesEllipsoidalCS"/>
<element ref="gml:usesGeodeticDatum"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="usesEllipsoidalCS" type="gml:EllipsoidalCSRefType">
<annotation>
<documentation>Association to the ellipsoidal coordinate system used by this CRS. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="usesGeodeticDatum" type="gml:GeodeticDatumRefType">
<annotation>
<documentation>Association to the geodetic datum used by this CRS. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="geographicCRSRef" type="gml:GeographicCRSRefType"/>
<!-- =================================================== -->
<complexType name="GeographicCRSRefType">
<annotation>
<documentation>Association to a geographic coordinate reference system, either referencing or containing the definition of that reference system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:GeographicCRS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="VerticalCRS" type="gml:VerticalCRSType" substitutionGroup="gml:_CoordinateReferenceSystem"/>
<!-- =================================================== -->
<complexType name="VerticalCRSType">
<annotation>
<documentation>A 1D coordinate reference system used for recording heights or depths. Vertical CRSs make use of the direction of gravity to define the concept of height or depth, but the relationship with gravity may not be straightforward. By implication, ellipsoidal heights (h) cannot be captured in a vertical coordinate reference system. Ellipsoidal heights cannot exist independently, but only as an inseparable part of a 3D coordinate tuple defined in a geographic 3D coordinate reference system. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractReferenceSystemType">
<sequence>
<element ref="gml:usesVerticalCS"/>
<element ref="gml:usesVerticalDatum"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="usesVerticalCS" type="gml:VerticalCSRefType">
<annotation>
<documentation>Association to the vertical coordinate system used by this CRS. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="usesVerticalDatum" type="gml:VerticalDatumRefType">
<annotation>
<documentation>Association to the vertical datum used by this CRS. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="verticalCRSRef" type="gml:VerticalCRSRefType"/>
<!-- =================================================== -->
<complexType name="VerticalCRSRefType">
<annotation>
<documentation>Association to a vertical coordinate reference system, either referencing or containing the definition of that reference system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:VerticalCRS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="GeocentricCRS" type="gml:GeocentricCRSType" substitutionGroup="gml:_CoordinateReferenceSystem"/>
<!-- =================================================== -->
<complexType name="GeocentricCRSType">
<annotation>
<documentation>A 3D coordinate reference system with the origin at the approximate centre of mass of the earth. A geocentric CRS deals with the earth's curvature by taking a 3D spatial view, which obviates the need to model the earth's curvature. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractReferenceSystemType">
<sequence>
<choice>
<element ref="gml:usesCartesianCS"/>
<element ref="gml:usesSphericalCS"/>
</choice>
<element ref="gml:usesGeodeticDatum"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="usesCartesianCS" type="gml:CartesianCSRefType">
<annotation>
<documentation>Association to the Cartesian coordinate system used by this CRS. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="usesSphericalCS" type="gml:SphericalCSRefType">
<annotation>
<documentation>Association to the spherical coordinate system used by this CRS.</documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="geocentricCRSRef" type="gml:GeocentricCRSRefType"/>
<!-- =================================================== -->
<complexType name="GeocentricCRSRefType">
<annotation>
<documentation>Association to a geocentric coordinate reference system, either referencing or containing the definition of that reference system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:GeocentricCRS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="_GeneralDerivedCRS" type="gml:AbstractGeneralDerivedCRSType" abstract="true" substitutionGroup="gml:_CoordinateReferenceSystem"/>
<!-- =================================================== -->
<complexType name="AbstractGeneralDerivedCRSType" abstract="true">
<annotation>
<documentation>A coordinate reference system that is defined by its coordinate conversion from another coordinate reference system (not by a datum). This abstract complexType shall not be used, extended, or restricted, in an Application Schema, to define a concrete subtype with a meaning equivalent to a concrete subtype specified in this document. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractReferenceSystemType">
<sequence>
<element ref="gml:baseCRS"/>
<element ref="gml:definedByConversion"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="baseCRS" type="gml:CoordinateReferenceSystemRefType">
<annotation>
<documentation>Association to the coordinate reference system used by this derived CRS. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="definedByConversion" type="gml:GeneralConversionRefType">
<annotation>
<documentation>Association to the coordinate conversion used to define this derived CRS. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="ProjectedCRS" type="gml:ProjectedCRSType" substitutionGroup="gml:_GeneralDerivedCRS"/>
<!-- =================================================== -->
<complexType name="ProjectedCRSType">
<annotation>
<documentation>A 2D coordinate reference system used to approximate the shape of the earth on a planar surface, but in such a way that the distortion that is inherent to the approximation is carefully controlled and known. Distortion correction is commonly applied to calculated bearings and distances to produce values that are a close match to actual field values. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGeneralDerivedCRSType">
<sequence>
<element ref="gml:usesCartesianCS"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="projectedCRSRef" type="gml:ProjectedCRSRefType"/>
<!-- =================================================== -->
<complexType name="ProjectedCRSRefType">
<annotation>
<documentation>Association to a projected coordinate reference system, either referencing or containing the definition of that reference system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:ProjectedCRS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="DerivedCRS" type="gml:DerivedCRSType" substitutionGroup="gml:_GeneralDerivedCRS"/>
<!-- =================================================== -->
<complexType name="DerivedCRSType">
<annotation>
<documentation>A coordinate reference system that is defined by its coordinate conversion from another coordinate reference system but is not a projected coordinate reference system. This category includes coordinate reference systems derived from a projected coordinate reference system. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGeneralDerivedCRSType">
<sequence>
<element ref="gml:derivedCRSType"/>
<element ref="gml:usesCS"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="derivedCRSType" type="gml:DerivedCRSTypeType"/>
<!-- =================================================== -->
<complexType name="DerivedCRSTypeType">
<annotation>
<documentation>Type of a derived coordinate reference system. </documentation>
</annotation>
<simpleContent>
<restriction base="gml:CodeType">
<attribute name="codeSpace" type="anyURI" use="required">
<annotation>
<documentation>Reference to a source of information specifying the values and meanings of all the allowed string values for this DerivedCRSTypeType. </documentation>
</annotation>
</attribute>
</restriction>
</simpleContent>
</complexType>
<!-- =================================================== -->
<element name="usesCS" type="gml:CoordinateSystemRefType">
<annotation>
<documentation>Association to the coordinate system used by this CRS. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="derivedCRSRef" type="gml:DerivedCRSRefType"/>
<!-- =================================================== -->
<complexType name="DerivedCRSRefType">
<annotation>
<documentation>Association to a non-projected derived coordinate reference system, either referencing or containing the definition of that reference system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:DerivedCRS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="EngineeringCRS" type="gml:EngineeringCRSType" substitutionGroup="gml:_CoordinateReferenceSystem"/>
<!-- =================================================== -->
<complexType name="EngineeringCRSType">
<annotation>
<documentation>A contextually local coordinate reference system; which can be divided into two broad categories:
- earth-fixed systems applied to engineering activities on or near the surface of the earth;
- CRSs on moving platforms such as road vehicles, vessels, aircraft, or spacecraft.
For further information, see OGC Abstract Specification Topic 2. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractReferenceSystemType">
<sequence>
<element ref="gml:usesCS"/>
<element ref="gml:usesEngineeringDatum"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="usesEngineeringDatum" type="gml:EngineeringDatumRefType">
<annotation>
<documentation>Association to the engineering datum used by this CRS. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="engineeringCRSRef" type="gml:EngineeringCRSRefType"/>
<!-- =================================================== -->
<complexType name="EngineeringCRSRefType">
<annotation>
<documentation>Association to an engineering coordinate reference system, either referencing or containing the definition of that reference system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:EngineeringCRS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="ImageCRS" type="gml:ImageCRSType" substitutionGroup="gml:_CoordinateReferenceSystem"/>
<!-- =================================================== -->
<complexType name="ImageCRSType">
<annotation>
<documentation>An engineering coordinate reference system applied to locations in images. Image coordinate reference systems are treated as a separate sub-type because a separate user community exists for images with its own terms of reference. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractReferenceSystemType">
<sequence>
<choice>
<element ref="gml:usesCartesianCS"/>
<element ref="gml:usesObliqueCartesianCS"/>
</choice>
<element ref="gml:usesImageDatum"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="usesObliqueCartesianCS" type="gml:ObliqueCartesianCSRefType">
<annotation>
<documentation>Association to the oblique Cartesian coordinate system used by this CRS.</documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="usesImageDatum" type="gml:ImageDatumRefType">
<annotation>
<documentation>Association to the image datum used by this CRS. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="imageCRSRef" type="gml:ImageCRSRefType"/>
<!-- =================================================== -->
<complexType name="ImageCRSRefType">
<annotation>
<documentation>Association to an image coordinate reference system, either referencing or containing the definition of that reference system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:ImageCRS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="TemporalCRS" type="gml:TemporalCRSType" substitutionGroup="gml:_CoordinateReferenceSystem"/>
<!-- =================================================== -->
<complexType name="TemporalCRSType">
<annotation>
<documentation>A 1D coordinate reference system used for the recording of time. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractReferenceSystemType">
<sequence>
<element ref="gml:usesTemporalCS"/>
<element ref="gml:usesTemporalDatum"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="usesTemporalCS" type="gml:TemporalCSRefType">
<annotation>
<documentation>Association to the temporal coordinate system used by this CRS. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="usesTemporalDatum" type="gml:TemporalDatumRefType">
<annotation>
<documentation>Association to the temporal datum used by this CRS. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="temporalCRSRef" type="gml:TemporalCRSRefType"/>
<!-- =================================================== -->
<complexType name="TemporalCRSRefType">
<annotation>
<documentation>Association to a temporal coordinate reference system, either referencing or containing the definition of that reference system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:TemporalCRS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
</schema>
<?xml version="1.0" encoding="UTF-8"?>
<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" xml:lang="en">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd:coordinateSystems:3.1.1"/>
<documentation>How to encode coordinate system definitions. Builds on referenceSystems.xsd to encode the data needed to define coordinate systems, including the specific subtypes of coordinate systems.
Copyright (c) 2002-2005 OGC, All Rights Reserved. For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr
This schema encodes the Coordinate System (CS_) package of the extended UML Model for OGC Abstract Specification Topic 2: Spatial Referencing by Coordinates. That UML model is adapted from ISO 19111 - Spatial referencing by coordinates, as described in Annex C of Topic 2.
Caution: The CRS package in GML 3.1 and GML 3.1.1 is preliminary, and is expected to undergo some modifications that are not backward compatible during the development of GML 3.2 (ISO 19136). The GML 3.2 package will implement the model described in the revised version of ISO 19111. </documentation>
</annotation>
<!-- ======================================================
includes and imports
====================================================== -->
<include schemaLocation="referenceSystems.xsd"/>
<!-- ======================================================
elements and types
====================================================== -->
<element name="CoordinateSystemAxis" type="gml:CoordinateSystemAxisType" substitutionGroup="gml:Definition"/>
<!-- =================================================== -->
<complexType name="CoordinateSystemAxisBaseType" abstract="true">
<annotation>
<documentation>Basic encoding for coordinate system axis objects, simplifying and restricting the DefinitionType as needed. </documentation>
</annotation>
<complexContent>
<restriction base="gml:DefinitionType">
<sequence>
<element ref="gml:metaDataProperty" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:name">
<annotation>
<documentation>The name by which this coordinate system axis is identified. </documentation>
</annotation>
</element>
</sequence>
<attribute ref="gml:id" use="required"/>
</restriction>
</complexContent>
</complexType>
<!-- =================================================== -->
<complexType name="CoordinateSystemAxisType">
<annotation>
<documentation>Definition of a coordinate system axis. </documentation>
</annotation>
<complexContent>
<extension base="gml:CoordinateSystemAxisBaseType">
<sequence>
<element ref="gml:axisID" minOccurs="0" maxOccurs="unbounded">
<annotation>
<documentation>Set of alternative identifications of this coordinate system axis. The first axisID, if any, is normally the primary identification code, and any others are aliases. </documentation>
</annotation>
</element>
<element ref="gml:remarks" minOccurs="0">
<annotation>
<documentation>Comments on or information about this coordinate system axis, including data source information. </documentation>
</annotation>
</element>
<element ref="gml:axisAbbrev"/>
<element ref="gml:axisDirection"/>
</sequence>
<attribute ref="gml:uom" use="required"/>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="axisID" type="gml:IdentifierType">
<annotation>
<documentation>An identification of a coordinate system axis. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="axisAbbrev" type="gml:CodeType">
<annotation>
<documentation>The abbreviation used for this coordinate system axis. This abbreviation can be used to identify the ordinates in a coordinate tuple. Examples are X and Y. The codeSpace attribute can reference a source of more information on a set of standardized abbreviations, or on this abbreviation. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="axisDirection" type="gml:CodeType">
<annotation>
<documentation>Direction of this coordinate system axis (or in the case of Cartesian projected coordinates, the direction of this coordinate system axis at the origin). Examples: north or south, east or west, up or down. Within any set of coordinate system axes, only one of each pair of terms can be used. For earth-fixed CRSs, this direction is often approximate and intended to provide a human interpretable meaning to the axis. When a geodetic datum is used, the precise directions of the axes may therefore vary slightly from this approximate direction. Note that an EngineeringCRS can include specific descriptions of the directions of its coordinate system axes. For example, the path of a linear CRS axis can be referenced in another document, such as referencing a GML feature that references or includes a curve geometry. The codeSpace attribute can reference a source of more information on a set of standardized directions, or on this direction. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<attribute name="uom" type="anyURI">
<annotation>
<documentation>Identifier of the unit of measure used for this coordinate system axis. The value of this coordinate in a coordinate tuple shall be recorded using this unit of measure, whenever those coordinates use a coordinate reference system that uses a coordinate system that uses this axis.</documentation>
</annotation>
</attribute>
<!-- =================================================== -->
<element name="coordinateSystemAxisRef" type="gml:CoordinateSystemAxisRefType"/>
<!-- =================================================== -->
<complexType name="CoordinateSystemAxisRefType">
<annotation>
<documentation>Association to a coordinate system axis, either referencing or containing the definition of that axis. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:CoordinateSystemAxis"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<!-- =================================================== -->
<element name="_CoordinateSystem" type="gml:AbstractCoordinateSystemType" abstract="true" substitutionGroup="gml:Definition"/>
<!-- =================================================== -->
<complexType name="AbstractCoordinateSystemBaseType" abstract="true">
<annotation>
<documentation>Basic encoding for coordinate system objects, simplifying and restricting the DefinitionType as needed. </documentation>
</annotation>
<complexContent>
<restriction base="gml:DefinitionType">
<sequence>
<element ref="gml:metaDataProperty" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:csName"/>
</sequence>
<attribute ref="gml:id" use="required"/>
</restriction>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="csName" type="gml:CodeType" substitutionGroup="gml:name">
<annotation>
<documentation>The name by which this coordinate system is identified. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<complexType name="AbstractCoordinateSystemType" abstract="true">
<annotation>
<documentation>A coordinate system (CS) is the set of coordinate system axes that spans a given coordinate space. A CS is derived from a set of (mathematical) rules for specifying how coordinates in a given space are to be assigned to points. The coordinate values in a coordinate tuple shall be recorded in the order in which the coordinate system axes associations are recorded, whenever those coordinates use a coordinate reference system that uses this coordinate system. This abstract complexType shall not be used, extended, or restricted, in an Application Schema, to define a concrete subtype with a meaning equivalent to a concrete subtype specified in this document. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoordinateSystemBaseType">
<sequence>
<element ref="gml:csID" minOccurs="0" maxOccurs="unbounded">
<annotation>
<documentation>Set of alternative identifications of this coordinate system. The first csID, if any, is normally the primary identification code, and any others are aliases. </documentation>
</annotation>
</element>
<element ref="gml:remarks" minOccurs="0">
<annotation>
<documentation>Comments on or information about this coordinate system, including data source information. </documentation>
</annotation>
</element>
<element ref="gml:usesAxis" maxOccurs="unbounded">
<annotation>
<documentation>Ordered sequence of associations to the coordinate system axes included in this coordinate system. </documentation>
</annotation>
</element>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="csID" type="gml:IdentifierType">
<annotation>
<documentation>An identification of a coordinate system. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="usesAxis" type="gml:CoordinateSystemAxisRefType">
<annotation>
<documentation>Association to a coordinate system axis. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="coordinateSystemRef" type="gml:CoordinateSystemRefType"/>
<!-- =================================================== -->
<complexType name="CoordinateSystemRefType">
<annotation>
<documentation>Association to a coordinate system, either referencing or containing the definition of that coordinate system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:_CoordinateSystem"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="EllipsoidalCS" type="gml:EllipsoidalCSType" substitutionGroup="gml:_CoordinateSystem"/>
<!-- =================================================== -->
<complexType name="EllipsoidalCSType">
<annotation>
<documentation>A two- or three-dimensional coordinate system in which position is specified by geodetic latitude, geodetic longitude, and (in the three-dimensional case) ellipsoidal height. An EllipsoidalCS shall have two or three usesAxis associations. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoordinateSystemType"/>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="ellipsoidalCSRef" type="gml:EllipsoidalCSRefType"/>
<!-- =================================================== -->
<complexType name="EllipsoidalCSRefType">
<annotation>
<documentation>Association to an ellipsoidal coordinate system, either referencing or containing the definition of that coordinate system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:EllipsoidalCS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="CartesianCS" type="gml:CartesianCSType" substitutionGroup="gml:_CoordinateSystem"/>
<!-- =================================================== -->
<complexType name="CartesianCSType">
<annotation>
<documentation>A 1-, 2-, or 3-dimensional coordinate system. Gives the position of points relative to orthogonal straight axes in the 2- and 3-dimensional cases. In the 1-dimensional case, it contains a single straight coordinate axis. In the multi-dimensional case, all axes shall have the same length unit of measure. A CartesianCS shall have one, two, or three usesAxis associations. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoordinateSystemType"/>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="cartesianCSRef" type="gml:CartesianCSRefType"/>
<!-- =================================================== -->
<complexType name="CartesianCSRefType">
<annotation>
<documentation>Association to a Cartesian coordinate system, either referencing or containing the definition of that coordinate system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:CartesianCS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="VerticalCS" type="gml:VerticalCSType" substitutionGroup="gml:_CoordinateSystem"/>
<!-- =================================================== -->
<complexType name="VerticalCSType">
<annotation>
<documentation>A one-dimensional coordinate system used to record the heights (or depths) of points. Such a coordinate system is usually dependent on the Earth's gravity field, perhaps loosely as when atmospheric pressure is the basis for the vertical coordinate system axis. A VerticalCS shall have one usesAxis association. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoordinateSystemType"/>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="verticalCSRef" type="gml:VerticalCSRefType"/>
<!-- =================================================== -->
<complexType name="VerticalCSRefType">
<annotation>
<documentation>Association to a vertical coordinate system, either referencing or containing the definition of that coordinate system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:VerticalCS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="TemporalCS" type="gml:TemporalCSType" substitutionGroup="gml:_CoordinateSystem"/>
<!-- =================================================== -->
<complexType name="TemporalCSType">
<annotation>
<documentation>A one-dimensional coordinate system containing a single time axis, used to describe the temporal position of a point in the specified time units from a specified time origin. A TemporalCS shall have one usesAxis association. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoordinateSystemType"/>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="temporalCSRef" type="gml:TemporalCSRefType"/>
<!-- =================================================== -->
<complexType name="TemporalCSRefType">
<annotation>
<documentation>Association to a temporal coordinate system, either referencing or containing the definition of that coordinate system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:TemporalCS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="LinearCS" type="gml:LinearCSType" substitutionGroup="gml:_CoordinateSystem"/>
<!-- =================================================== -->
<complexType name="LinearCSType">
<annotation>
<documentation>A one-dimensional coordinate system that consists of the points that lie on the single axis described. The associated ordinate is the distance from the specified origin to the point along the axis. Example: usage of the line feature representing a road to describe points on or along that road. A LinearCS shall have one usesAxis association. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoordinateSystemType"/>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="linearCSRef" type="gml:LinearCSRefType"/>
<!-- =================================================== -->
<complexType name="LinearCSRefType">
<annotation>
<documentation>Association to a linear coordinate system, either referencing or containing the definition of that coordinate system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:LinearCS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="UserDefinedCS" type="gml:UserDefinedCSType" substitutionGroup="gml:_CoordinateSystem"/>
<!-- =================================================== -->
<complexType name="UserDefinedCSType">
<annotation>
<documentation>A two- or three-dimensional coordinate system that consists of any combination of coordinate axes not covered by any other coordinate system type. An example is a multilinear coordinate system which contains one coordinate axis that may have any 1-D shape which has no intersections with itself. This non-straight axis is supplemented by one or two straight axes to complete a 2 or 3 dimensional coordinate system. The non-straight axis is typically incrementally straight or curved. A UserDefinedCS shall have two or three usesAxis associations. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoordinateSystemType"/>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="userDefinedCSRef" type="gml:UserDefinedCSRefType"/>
<!-- =================================================== -->
<complexType name="UserDefinedCSRefType">
<annotation>
<documentation>Association to a user-defined coordinate system, either referencing or containing the definition of that coordinate system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:UserDefinedCS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="SphericalCS" type="gml:SphericalCSType" substitutionGroup="gml:_CoordinateSystem"/>
<!-- =================================================== -->
<complexType name="SphericalCSType">
<annotation>
<documentation>A three-dimensional coordinate system with one distance measured from the origin and two angular coordinates. Not to be confused with an ellipsoidal coordinate system based on an ellipsoid "degenerated" into a sphere. A SphericalCS shall have three usesAxis associations. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoordinateSystemType"/>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="sphericalCSRef" type="gml:SphericalCSRefType"/>
<!-- =================================================== -->
<complexType name="SphericalCSRefType">
<annotation>
<documentation>Association to a spherical coordinate system, either referencing or containing the definition of that coordinate system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:SphericalCS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="PolarCS" type="gml:PolarCSType" substitutionGroup="gml:_CoordinateSystem"/>
<!-- =================================================== -->
<complexType name="PolarCSType">
<annotation>
<documentation>A two-dimensional coordinate system in which position is specified by the distance from the origin and the angle between the line from the origin to a point and a reference direction. A PolarCS shall have two usesAxis associations. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoordinateSystemType"/>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="polarCSRef" type="gml:PolarCSRefType"/>
<!-- =================================================== -->
<complexType name="PolarCSRefType">
<annotation>
<documentation>Association to a polar coordinate system, either referencing or containing the definition of that coordinate system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:PolarCS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="CylindricalCS" type="gml:CylindricalCSType" substitutionGroup="gml:_CoordinateSystem"/>
<!-- =================================================== -->
<complexType name="CylindricalCSType">
<annotation>
<documentation>A three-dimensional coordinate system consisting of a polar coordinate system extended by a straight coordinate axis perpendicular to the plane spanned by the polar coordinate system. A CylindricalCS shall have three usesAxis associations. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoordinateSystemType"/>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="cylindricalCSRef" type="gml:CylindricalCSRefType"/>
<!-- =================================================== -->
<complexType name="CylindricalCSRefType">
<annotation>
<documentation>Association to a cylindrical coordinate system, either referencing or containing the definition of that coordinate system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:CylindricalCS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="ObliqueCartesianCS" type="gml:ObliqueCartesianCSType" substitutionGroup="gml:_CoordinateSystem"/>
<!-- =================================================== -->
<complexType name="ObliqueCartesianCSType">
<annotation>
<documentation>A two- or three-dimensional coordinate system with straight axes that are not necessarily orthogonal. An ObliqueCartesianCS shall have two or three usesAxis associations. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoordinateSystemType"/>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="obliqueCartesianCSRef" type="gml:ObliqueCartesianCSRefType"/>
<!-- =================================================== -->
<complexType name="ObliqueCartesianCSRefType">
<annotation>
<documentation>Association to an oblique-Cartesian coordinate system, either referencing or containing the definition of that coordinate system. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:ObliqueCartesianCS"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
</schema>
<?xml version="1.0" encoding="UTF-8"?>
<schema targetNamespace="http://www.opengis.net/gml" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml" elementFormDefault="qualified" version="3.1.1">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd:coverage:3.1.1">coverage.xsd</appinfo>
<documentation xml:lang="en">GML Coverage schema.
Copyright (c) 2005 OGC, All Rights Reserved.
For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr</documentation>
</annotation>
<!-- ==============================================================
includes and imports
============================================================== -->
<include schemaLocation="feature.xsd"/>
<include schemaLocation="valueObjects.xsd"/>
<include schemaLocation="grids.xsd"/>
<include schemaLocation="geometryAggregates.xsd"/>
<!-- ==============================================================
global types and elements
============================================================== -->
<!-- ================= Abstract coverage definition ================== -->
<!-- =========================================================== -->
<!-- =========================================================== -->
<element name="_Coverage" type="gml:AbstractCoverageType" abstract="true" substitutionGroup="gml:_Feature"/>
<!-- =========================================================== -->
<complexType name="AbstractCoverageType" abstract="true">
<annotation>
<documentation>Abstract element which acts as the head of a substitution group for coverages. Note that a coverage is a GML feature.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractFeatureType">
<sequence>
<element ref="gml:domainSet"/>
<element ref="gml:rangeSet"/>
</sequence>
<attribute name="dimension" type="positiveInteger" use="optional"/>
</extension>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="_ContinuousCoverage" type="gml:AbstractContinuousCoverageType" abstract="true" substitutionGroup="gml:_Coverage"/>
<!-- =========================================================== -->
<complexType name="AbstractContinuousCoverageType" abstract="true">
<annotation>
<documentation>A continuous coverage as defined in ISO 19123 is a coverage that can return different values for the same feature attribute at different direct positions within a single spatiotemporal object in its spatiotemporal domain</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoverageType">
<sequence>
<element ref="gml:coverageFunction" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="_DiscreteCoverage" type="gml:AbstractDiscreteCoverageType" abstract="true" substitutionGroup="gml:_Coverage"/>
<!-- =========================================================== -->
<complexType name="AbstractDiscreteCoverageType" abstract="true">
<annotation>
<documentation>A discrete coverage consists of a domain set, range set and optionally a coverage function. The domain set consists of either geometry or temporal objects, finite in number. The range set is comprised of a finite number of attribute values each of which is associated to every direct position within any single spatiotemporal object in the domain. In other words, the range values are constant on each spatiotemporal object in the domain. This coverage function maps each element from the coverage domain to an element in its range. This definition conforms to ISO 19123.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractCoverageType">
<sequence>
<element ref="gml:coverageFunction" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="domainSet" type="gml:DomainSetType"/>
<!-- =========================================================== -->
<complexType name="DomainSetType">
<annotation>
<documentation>The spatiotemporal domain of a coverage.
Typically
* a geometry collection,
* an implicit geometry (e.g. a grid),
* an explicit or implicit collection of time instances or periods, or
N.B. Temporal geometric complexes and temporal grids are not yet implemented in GML.</documentation>
</annotation>
<sequence minOccurs="0">
<choice>
<element ref="gml:_Geometry"/>
<element ref="gml:_TimeObject"/>
</choice>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =========================================================== -->
<element name="rangeSet" type="gml:RangeSetType"/>
<!-- =========================================================== -->
<complexType name="RangeSetType">
<choice>
<element ref="gml:ValueArray" maxOccurs="unbounded">
<annotation>
<documentation>each member _Value holds a tuple or "row" from the equivalent table</documentation>
</annotation>
</element>
<group ref="gml:ScalarValueList" maxOccurs="unbounded">
<annotation>
<documentation>each list holds the complete set of one scalar component from the values - i.e. a "column" from the equivalent table</documentation>
</annotation>
</group>
<element ref="gml:DataBlock">
<annotation>
<documentation>Its tuple list holds the values as space-separated tuples each of which contains comma-separated components, and the tuple structure is specified using the rangeParameters property.</documentation>
</annotation>
</element>
<element ref="gml:File">
<annotation>
<documentation>a reference to an external source for the data, together with a description of how that external source is structured</documentation>
</annotation>
</element>
</choice>
</complexType>
<!-- =========================================================== -->
<element name="coverageFunction" type="gml:CoverageFunctionType"/>
<!-- =========================================================== -->
<complexType name="CoverageFunctionType">
<annotation>
<documentation>The function or rule which defines the map from members of the domainSet to the range.
More functions will be added to this list</documentation>
</annotation>
<choice>
<element ref="gml:MappingRule"/>
<element ref="gml:GridFunction"/>
</choice>
</complexType>
<!-- =========================================================== -->
<!-- ============== Components for encoding the rangeSet ============= -->
<!-- =========================================================== -->
<element name="DataBlock" type="gml:DataBlockType"/>
<!-- =========================================================== -->
<complexType name="DataBlockType">
<sequence>
<element ref="gml:rangeParameters"/>
<choice>
<element ref="gml:tupleList"/>
<element ref="gml:doubleOrNullTupleList"/>
</choice>
</sequence>
</complexType>
<!-- =========================================================== -->
<element name="tupleList" type="gml:CoordinatesType"/>
<!-- =========================================================== -->
<element name="doubleOrNullTupleList" type="gml:doubleOrNullList"/>
<!-- =========================================================== -->
<element name="File" type="gml:FileType"/>
<!-- =========================================================== -->
<complexType name="FileType">
<sequence>
<element ref="gml:rangeParameters"/>
<element name="fileName" type="anyURI"/>
<element name="fileStructure" type="gml:FileValueModelType"/>
<element name="mimeType" type="anyURI" minOccurs="0"/>
<element name="compression" type="anyURI" minOccurs="0"/>
</sequence>
</complexType>
<!-- =========================================================== -->
<simpleType name="FileValueModelType">
<annotation>
<documentation>List of codes that identifies the file structure model for records stored in files.</documentation>
</annotation>
<restriction base="string">
<enumeration value="Record Interleaved"/>
</restriction>
</simpleType>
<!-- =========================================================== -->
<element name="rangeParameters" type="gml:RangeParametersType"/>
<!-- =========================================================== -->
<complexType name="RangeParametersType">
<annotation>
<documentation>Metadata about the rangeSet. Definition of record structure.
This is required if the rangeSet is encoded in a DataBlock.
We use a gml:_Value with empty values as a map of the composite value structure.</documentation>
</annotation>
<sequence minOccurs="0">
<group ref="gml:ValueObject"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =========================================================== -->
<!-- ============= Components for coverageFunctions ================ -->
<!-- =========================================================== -->
<element name="MappingRule" type="gml:StringOrRefType">
<annotation>
<documentation>Description of a rule for associating members from the domainSet with members of the rangeSet.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<element name="GridFunction" type="gml:GridFunctionType"/>
<!-- =========================================================== -->
<complexType name="GridFunctionType">
<annotation>
<documentation>Defines how values in the domain are mapped to the range set. The start point and the sequencing rule are specified here.</documentation>
</annotation>
<sequence>
<element name="sequenceRule" type="gml:SequenceRuleType" minOccurs="0">
<annotation>
<documentation>If absent, the implied value is "Linear".</documentation>
</annotation>
</element>
<element name="startPoint" type="gml:integerList" minOccurs="0">
<annotation>
<documentation>Index position of the first grid post, which must lie somwhere in the GridEnvelope. If absent, the startPoint is equal to the value of gridEnvelope::low from the grid definition.</documentation>
</annotation>
</element>
</sequence>
</complexType>
<!-- =========================================================== -->
<element name="IndexMap" type="gml:IndexMapType" substitutionGroup="gml:GridFunction"/>
<!-- =========================================================== -->
<complexType name="IndexMapType">
<annotation>
<documentation>Exends GridFunctionType with a lookUpTable. This contains a list of indexes of members within the rangeSet corresponding with the members of the domainSet. The domainSet is traversed in list order if it is enumerated explicitly, or in the order specified by a SequenceRule if the domain is an implicit set. The length of the lookUpTable corresponds with the length of the subset of the domainSet for which the coverage is defined.</documentation>
</annotation>
<complexContent>
<extension base="gml:GridFunctionType">
<sequence>
<element name="lookUpTable" type="gml:integerList"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =========================================================== -->
<complexType name="SequenceRuleType">
<simpleContent>
<extension base="gml:SequenceRuleNames">
<attribute name="order" type="gml:IncrementOrder" use="optional"/>
</extension>
</simpleContent>
</complexType>
<!-- =========================================================== -->
<simpleType name="SequenceRuleNames">
<annotation>
<documentation>List of codes (adopted from ISO 19123 Annex C) that identifies the rule for traversing a grid to correspond with the sequence of members of the rangeSet.</documentation>
</annotation>
<restriction base="string">
<enumeration value="Linear"/>
<enumeration value="Boustrophedonic"/>
<enumeration value="Cantor-diagonal"/>
<enumeration value="Spiral"/>
<enumeration value="Morton"/>
<enumeration value="Hilbert"/>
</restriction>
</simpleType>
<!-- =========================================================== -->
<simpleType name="IncrementOrder">
<annotation>
<documentation>The enumeration value here indicates the incrementation order to be used on the first 2 axes, i.e. "+x-y" means that the points on the first axis are to be traversed from lowest to highest and the points on the second axis are to be traversed from highest to lowest. The points on all other axes (if any) beyond the first 2 are assumed to increment from lowest to highest.</documentation>
</annotation>
<restriction base="string">
<enumeration value="+x+y"/>
<enumeration value="+y+x"/>
<enumeration value="+x-y"/>
<enumeration value="-x-y"/>
</restriction>
</simpleType>
<!-- =========================================================== -->
<!-- == Specialised Coverage types - typed by the structure of the domain set == -->
<!-- =========================================================== -->
<element name="MultiPointCoverage" type="gml:MultiPointCoverageType" substitutionGroup="gml:_DiscreteCoverage"/>
<!-- =========================================================== -->
<complexType name="MultiPointCoverageType">
<annotation>
<documentation>A discrete coverage type whose domain is defined by a collection of point</documentation>
</annotation>
<complexContent>
<restriction base="gml:AbstractDiscreteCoverageType">
<sequence>
<group ref="gml:StandardObjectProperties"/>
<element ref="gml:boundedBy" minOccurs="0"/>
<element ref="gml:multiPointDomain"/>
<element ref="gml:rangeSet"/>
<element ref="gml:coverageFunction" minOccurs="0"/>
</sequence>
</restriction>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="multiPointDomain" type="gml:MultiPointDomainType" substitutionGroup="gml:domainSet"/>
<!-- =========================================================== -->
<complexType name="MultiPointDomainType">
<complexContent>
<restriction base="gml:DomainSetType">
<sequence minOccurs="0">
<element ref="gml:MultiPoint"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</restriction>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="MultiCurveCoverage" type="gml:MultiCurveCoverageType" substitutionGroup="gml:_DiscreteCoverage"/>
<!-- =========================================================== -->
<complexType name="MultiCurveCoverageType">
<annotation>
<documentation>A discrete coverage type whose domain is defined by a collection of curves.</documentation>
</annotation>
<complexContent>
<restriction base="gml:AbstractDiscreteCoverageType">
<sequence>
<group ref="gml:StandardObjectProperties"/>
<element ref="gml:boundedBy" minOccurs="0"/>
<element ref="gml:multiCurveDomain"/>
<element ref="gml:rangeSet"/>
<element ref="gml:coverageFunction" minOccurs="0"/>
</sequence>
</restriction>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="multiCurveDomain" type="gml:MultiCurveDomainType" substitutionGroup="gml:domainSet"/>
<!-- =========================================================== -->
<complexType name="MultiCurveDomainType">
<complexContent>
<restriction base="gml:DomainSetType">
<sequence minOccurs="0">
<element ref="gml:MultiCurve"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</restriction>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="MultiSurfaceCoverage" type="gml:MultiSurfaceCoverageType" substitutionGroup="gml:_DiscreteCoverage"/>
<!-- =========================================================== -->
<complexType name="MultiSurfaceCoverageType">
<annotation>
<documentation>A discrete coverage type whose domain is defined by a collection of surface patches (includes polygons, triangles, rectangles, etc).</documentation>
</annotation>
<complexContent>
<restriction base="gml:AbstractDiscreteCoverageType">
<sequence>
<group ref="gml:StandardObjectProperties"/>
<element ref="gml:boundedBy" minOccurs="0"/>
<element ref="gml:multiSurfaceDomain"/>
<element ref="gml:rangeSet"/>
<element ref="gml:coverageFunction" minOccurs="0"/>
</sequence>
</restriction>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="multiSurfaceDomain" type="gml:MultiSurfaceDomainType" substitutionGroup="gml:domainSet"/>
<!-- =========================================================== -->
<complexType name="MultiSurfaceDomainType">
<complexContent>
<restriction base="gml:DomainSetType">
<sequence minOccurs="0">
<element ref="gml:MultiSurface"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</restriction>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="MultiSolidCoverage" type="gml:MultiSolidCoverageType" substitutionGroup="gml:_DiscreteCoverage"/>
<!-- =========================================================== -->
<complexType name="MultiSolidCoverageType">
<annotation>
<documentation>A discrete coverage type whose domain is defined by a collection of Solids.</documentation>
</annotation>
<complexContent>
<restriction base="gml:AbstractDiscreteCoverageType">
<sequence>
<group ref="gml:StandardObjectProperties"/>
<element ref="gml:boundedBy" minOccurs="0"/>
<element ref="gml:multiSolidDomain"/>
<element ref="gml:rangeSet"/>
<element ref="gml:coverageFunction" minOccurs="0"/>
</sequence>
</restriction>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="multiSolidDomain" type="gml:MultiSolidDomainType" substitutionGroup="gml:domainSet"/>
<!-- =========================================================== -->
<complexType name="MultiSolidDomainType">
<complexContent>
<restriction base="gml:DomainSetType">
<sequence minOccurs="0">
<element ref="gml:MultiSolid"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</restriction>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="GridCoverage" type="gml:GridCoverageType" substitutionGroup="gml:_DiscreteCoverage"/>
<!-- =========================================================== -->
<complexType name="GridCoverageType">
<complexContent>
<restriction base="gml:AbstractDiscreteCoverageType">
<sequence>
<group ref="gml:StandardObjectProperties"/>
<element ref="gml:boundedBy" minOccurs="0"/>
<element ref="gml:gridDomain"/>
<element ref="gml:rangeSet"/>
<element ref="gml:coverageFunction" minOccurs="0"/>
</sequence>
</restriction>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="gridDomain" type="gml:GridDomainType" substitutionGroup="gml:domainSet"/>
<!-- =========================================================== -->
<complexType name="GridDomainType">
<complexContent>
<restriction base="gml:DomainSetType">
<sequence minOccurs="0">
<element ref="gml:Grid"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</restriction>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="RectifiedGridCoverage" type="gml:RectifiedGridCoverageType" substitutionGroup="gml:_DiscreteCoverage"/>
<!-- =========================================================== -->
<complexType name="RectifiedGridCoverageType">
<complexContent>
<restriction base="gml:AbstractDiscreteCoverageType">
<sequence>
<group ref="gml:StandardObjectProperties"/>
<element ref="gml:boundedBy" minOccurs="0"/>
<element ref="gml:rectifiedGridDomain"/>
<element ref="gml:rangeSet"/>
<element ref="gml:coverageFunction" minOccurs="0"/>
</sequence>
</restriction>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="rectifiedGridDomain" type="gml:RectifiedGridDomainType" substitutionGroup="gml:domainSet"/>
<!-- =========================================================== -->
<complexType name="RectifiedGridDomainType">
<complexContent>
<restriction base="gml:DomainSetType">
<sequence minOccurs="0">
<element ref="gml:RectifiedGrid"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</restriction>
</complexContent>
</complexType>
<!-- =========================================================== -->
</schema>
\ No newline at end of file
<?xml version="1.0" encoding="UTF-8"?>
<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" xml:lang="en">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd:dataQuality:3.1.1"/>
<documentation>How to encode positional data quality information. Builds on units.xsd to encode the data needed to describe the positional accuracy of coordinate operations.
Copyright (c) 2002-2005 OGC, All Rights Reserved. For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr
This schema encodes the Data Quality (DQ) package of the extended UML Model for OGC Abstract Specification Topic 2: Spatial Referencing by Coordinates. That UML model is adapted from ISO 19111 - Spatial referencing by coordinates, as described in Annex C of Topic 2.
Caution: The CRS package in GML 3.1 and GML 3.1.1 is preliminary, and is expected to undergo some modifications that are not backward compatible during the development of GML 3.2 (ISO 19136). The GML 3.2 package will implement the model described in the revised version of ISO 19111. </documentation>
</annotation>
<!-- ======================================================
includes and imports
====================================================== -->
<include schemaLocation="units.xsd"/>
<!-- ======================================================
elements and types
====================================================== -->
<element name="_positionalAccuracy" type="gml:AbstractPositionalAccuracyType" abstract="true"/>
<!-- =================================================== -->
<complexType name="AbstractPositionalAccuracyType" abstract="true">
<annotation>
<documentation>Position error estimate (or accuracy) data. </documentation>
</annotation>
<sequence>
<element ref="gml:measureDescription" minOccurs="0"/>
</sequence>
</complexType>
<!-- =================================================== -->
<element name="measureDescription" type="gml:CodeType">
<annotation>
<documentation>A description of the position accuracy parameter(s) provided. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="absoluteExternalPositionalAccuracy" type="gml:AbsoluteExternalPositionalAccuracyType" substitutionGroup="gml:_positionalAccuracy"/>
<!-- =================================================== -->
<complexType name="AbsoluteExternalPositionalAccuracyType">
<annotation>
<documentation>Closeness of reported coordinate values to values accepted as or being true. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractPositionalAccuracyType">
<sequence>
<element ref="gml:result"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="relativeInternalPositionalAccuracy" type="gml:RelativeInternalPositionalAccuracyType" substitutionGroup="gml:_positionalAccuracy"/>
<!-- =================================================== -->
<complexType name="RelativeInternalPositionalAccuracyType">
<annotation>
<documentation>Closeness of the relative positions of two or more positions to their respective relative positions accepted as or being true. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractPositionalAccuracyType">
<sequence>
<element ref="gml:result"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="result" type="gml:MeasureType">
<annotation>
<documentation>A quantitative result defined by the evaluation procedure used, and identified by the measureDescription. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="covarianceMatrix" type="gml:CovarianceMatrixType" substitutionGroup="gml:_positionalAccuracy"/>
<!-- =================================================== -->
<complexType name="CovarianceMatrixType">
<annotation>
<documentation>Error estimate covariance matrix. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractPositionalAccuracyType">
<sequence>
<element ref="gml:unitOfMeasure" maxOccurs="unbounded">
<annotation>
<documentation>Ordered sequence of units of measure, corresponding to the row and column index numbers of the covariance matrix, starting with row and column 1 and ending with row/column N. Each unit of measure is for the ordinate reflected in the relevant row and column of the covariance matrix. </documentation>
</annotation>
</element>
<element ref="gml:includesElement" maxOccurs="unbounded">
<annotation>
<documentation>Unordered set of elements in this covariance matrix. Because the covariance matrix is symmetrical, only the elements in the upper or lower diagonal part (including the main diagonal) of the matrix need to be specified. Any zero valued covariance elements can be omitted. </documentation>
</annotation>
</element>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="includesElement" type="gml:CovarianceElementType"/>
<!-- =================================================== -->
<complexType name="CovarianceElementType">
<annotation>
<documentation>An element of a covariance matrix.</documentation>
</annotation>
<sequence>
<element ref="gml:rowIndex"/>
<element ref="gml:columnIndex"/>
<element ref="gml:covariance"/>
</sequence>
</complexType>
<!-- =================================================== -->
<element name="rowIndex" type="positiveInteger">
<annotation>
<documentation>Row number of this covariance element value. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="columnIndex" type="positiveInteger">
<annotation>
<documentation>Column number of this covariance element value. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="covariance" type="double">
<annotation>
<documentation>Value of covariance matrix element. </documentation>
</annotation>
</element>
<!-- =================================================== -->
</schema>
<?xml version="1.0" encoding="UTF-8"?>
<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" xml:lang="en">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd:datums:3.1.1"/>
<documentation>How to encode datum definitions. Builds on referenceSystems.xsd to encode the data needed to define datums, including the specific subtypes of datums.
Copyright (c) 2002-2005 OGC, All Rights Reserved. For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr
This schema encodes the Datum (CD_) package of the extended UML Model for OGC Abstract Specification Topic 2: Spatial Referencing by Coordinates. That UML model is adapted from ISO 19111 - Spatial referencing by coordinates, as described in Annex C of Topic 2.
Caution: The CRS package in GML 3.1 and GML 3.1.1 is preliminary, and is expected to undergo some modifications that are not backward compatible during the development of GML 3.2 (ISO 19136). The GML 3.2 package will implement the model described in the revised version of ISO 19111. </documentation>
</annotation>
<!-- ======================================================
includes and imports
====================================================== -->
<include schemaLocation="referenceSystems.xsd"/>
<!-- ======================================================
elements and types
====================================================== -->
<element name="_Datum" type="gml:AbstractDatumType" abstract="true" substitutionGroup="gml:Definition"/>
<!-- =================================================== -->
<complexType name="AbstractDatumBaseType" abstract="true">
<annotation>
<documentation>Basic encoding for datum objects, simplifying and restricting the DefinitionType as needed. </documentation>
</annotation>
<complexContent>
<restriction base="gml:DefinitionType">
<sequence>
<element ref="gml:metaDataProperty" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:datumName"/>
</sequence>
<attribute ref="gml:id" use="required"/>
</restriction>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="datumName" type="gml:CodeType" substitutionGroup="gml:name">
<annotation>
<documentation>The name by which this datum is identified. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<complexType name="AbstractDatumType" abstract="true">
<annotation>
<documentation>A datum specifies the relationship of a coordinate system to the earth, thus creating a coordinate reference system. A datum uses a parameter or set of parameters that determine the location of the origin of the coordinate reference system. Each datum subtype can be associated with only specific types of coordinate systems. This abstract complexType shall not be used, extended, or restricted, in an Application Schema, to define a concrete subtype with a meaning equivalent to a concrete subtype specified in this document. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractDatumBaseType">
<sequence>
<element ref="gml:datumID" minOccurs="0" maxOccurs="unbounded">
<annotation>
<documentation>Set of alternative identifications of this datum. The first datumID, if any, is normally the primary identification code, and any others are aliases. </documentation>
</annotation>
</element>
<element ref="gml:remarks" minOccurs="0">
<annotation>
<documentation>Comments on this reference system, including source information. </documentation>
</annotation>
</element>
<element ref="gml:anchorPoint" minOccurs="0"/>
<element ref="gml:realizationEpoch" minOccurs="0"/>
<element ref="gml:validArea" minOccurs="0"/>
<element ref="gml:scope" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="datumID" type="gml:IdentifierType">
<annotation>
<documentation>An identification of a datum. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="anchorPoint" type="gml:CodeType">
<annotation>
<documentation>Description, possibly including coordinates, of the point or points used to anchor the datum to the Earth. Also known as the "origin", especially for engineering and image datums. The codeSpace attribute can be used to reference a source of more detailed on this point or surface, or on a set of such descriptions.
- For a geodetic datum, this point is also known as the fundamental point, which is traditionally the point where the relationship between geoid and ellipsoid is defined. In some cases, the "fundamental point" may consist of a number of points. In those cases, the parameters defining the geoid/ellipsoid relationship have been averaged for these points, and the averages adopted as the datum definition.
- For an engineering datum, the anchor point may be a physical point, or it may be a point with defined coordinates in another CRS. When appropriate, the coordinates of this anchor point can be referenced in another document, such as referencing a GML feature that references or includes a point position.
- For an image datum, the anchor point is usually either the centre of the image or the corner of the image.
- For a temporal datum, this attribute is not defined. Instead of the anchor point, a temporal datum carries a separate time origin of type DateTime. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="realizationEpoch" type="date">
<annotation>
<documentation>The time after which this datum definition is valid. This time may be precise (e.g. 1997.0 for IRTF97) or merely a year (e.g. 1983 for NAD83). In the latter case, the epoch usually refers to the year in which a major recalculation of the geodetic control network, underlying the datum, was executed or initiated. An old datum can remain valid after a new datum is defined. Alternatively, a datum may be superseded by a later datum, in which case the realization epoch for the new datum defines the upper limit for the validity of the superseded datum. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="datumRef" type="gml:DatumRefType"/>
<!-- =================================================== -->
<complexType name="DatumRefType">
<annotation>
<documentation>Association to a datum, either referencing or containing the definition of that datum. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:_Datum"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="EngineeringDatum" type="gml:EngineeringDatumType" substitutionGroup="gml:_Datum"/>
<!-- =================================================== -->
<complexType name="EngineeringDatumType">
<annotation>
<documentation>An engineering datum defines the origin of an engineering coordinate reference system, and is used in a region around that origin. This origin can be fixed with respect to the earth (such as a defined point at a construction site), or be a defined point on a moving vehicle (such as on a ship or satellite). </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractDatumType"/>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="engineeringDatumRef" type="gml:EngineeringDatumRefType"/>
<!-- =================================================== -->
<complexType name="EngineeringDatumRefType">
<annotation>
<documentation>Association to an engineering datum, either referencing or containing the definition of that datum. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:EngineeringDatum"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="ImageDatum" type="gml:ImageDatumType" substitutionGroup="gml:_Datum"/>
<!-- =================================================== -->
<complexType name="ImageDatumType">
<annotation>
<documentation>An image datum defines the origin of an image coordinate reference system, and is used in a local context only. For more information, see OGC Abstract Specification Topic 2. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractDatumType">
<sequence>
<element ref="gml:pixelInCell"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="pixelInCell" type="gml:PixelInCellType"/>
<!-- =================================================== -->
<complexType name="PixelInCellType">
<annotation>
<documentation>Specification of the way an image grid is associated with the image data attributes. </documentation>
</annotation>
<simpleContent>
<restriction base="gml:CodeType">
<attribute name="codeSpace" type="anyURI" use="required">
<annotation>
<documentation>Reference to a source of information specifying the values and meanings of all the allowed string values for this PixelInCellType. </documentation>
</annotation>
</attribute>
</restriction>
</simpleContent>
</complexType>
<!-- =================================================== -->
<element name="imageDatumRef" type="gml:ImageDatumRefType"/>
<!-- =================================================== -->
<complexType name="ImageDatumRefType">
<annotation>
<documentation>Association to an image datum, either referencing or containing the definition of that datum. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:ImageDatum"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="VerticalDatum" type="gml:VerticalDatumType" substitutionGroup="gml:_Datum"/>
<!-- =================================================== -->
<complexType name="VerticalDatumType">
<annotation>
<documentation>A textual description and/or a set of parameters identifying a particular reference level surface used as a zero-height surface, including its position with respect to the Earth for any of the height types recognized by this standard. There are several types of Vertical Datums, and each may place constraints on the Coordinate Axis with which it is combined to create a Vertical CRS. </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractDatumType">
<sequence>
<element ref="gml:verticalDatumType" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="verticalDatumType" type="gml:VerticalDatumTypeType"/>
<!-- =================================================== -->
<complexType name="VerticalDatumTypeType">
<annotation>
<documentation>Type of a vertical datum. </documentation>
</annotation>
<simpleContent>
<restriction base="gml:CodeType">
<attribute name="codeSpace" type="anyURI" use="required">
<annotation>
<documentation>Reference to a source of information specifying the values and meanings of all the allowed string values for this VerticalDatumTypeType. </documentation>
</annotation>
</attribute>
</restriction>
</simpleContent>
</complexType>
<!-- =================================================== -->
<element name="verticalDatumRef" type="gml:VerticalDatumRefType"/>
<!-- =================================================== -->
<complexType name="VerticalDatumRefType">
<annotation>
<documentation>Association to a vertical datum, either referencing or containing the definition of that datum. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:VerticalDatum"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="TemporalDatum" type="gml:TemporalDatumType" substitutionGroup="gml:_Datum"/>
<!-- =================================================== -->
<complexType name="TemporalDatumBaseType" abstract="true">
<annotation>
<documentation>Partially defines the origin of a temporal coordinate reference system. This type restricts the AbstractDatumType to remove the "anchorPoint" and "realizationEpoch" elements. </documentation>
</annotation>
<complexContent>
<restriction base="gml:AbstractDatumType">
<sequence>
<element ref="gml:metaDataProperty" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:datumName"/>
<element ref="gml:datumID" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:validArea" minOccurs="0"/>
<element ref="gml:scope" minOccurs="0"/>
</sequence>
<attribute ref="gml:id" use="required"/>
</restriction>
</complexContent>
</complexType>
<!-- =================================================== -->
<complexType name="TemporalDatumType">
<annotation>
<documentation>Defines the origin of a temporal coordinate reference system. This type extends the TemporalDatumRestrictionType to add the "origin" element with the dateTime type. </documentation>
</annotation>
<complexContent>
<extension base="gml:TemporalDatumBaseType">
<sequence>
<element ref="gml:origin"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="origin" type="dateTime">
<annotation>
<documentation>The date and time origin of this temporal datum. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="temporalDatumRef" type="gml:TemporalDatumRefType"/>
<!-- =================================================== -->
<complexType name="TemporalDatumRefType">
<annotation>
<documentation>Association to a temporal datum, either referencing or containing the definition of that datum. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:TemporalDatum"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="GeodeticDatum" type="gml:GeodeticDatumType" substitutionGroup="gml:_Datum"/>
<!-- =================================================== -->
<complexType name="GeodeticDatumType">
<annotation>
<documentation>A geodetic datum defines the precise location and orientation in 3-dimensional space of a defined ellipsoid (or sphere) that approximates the shape of the earth, or of a Cartesian coordinate system centered in this ellipsoid (or sphere). </documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractDatumType">
<sequence>
<element ref="gml:usesPrimeMeridian"/>
<element ref="gml:usesEllipsoid"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="usesPrimeMeridian" type="gml:PrimeMeridianRefType">
<annotation>
<documentation>Association to the prime meridian used by this geodetic datum. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="usesEllipsoid" type="gml:EllipsoidRefType">
<annotation>
<documentation>Association to the ellipsoid used by this geodetic datum. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="geodeticDatumRef" type="gml:GeodeticDatumRefType"/>
<!-- =================================================== -->
<complexType name="GeodeticDatumRefType">
<annotation>
<documentation>Association to a geodetic datum, either referencing or containing the definition of that datum. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:GeodeticDatum"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<!-- =================================================== -->
<element name="PrimeMeridian" type="gml:PrimeMeridianType" substitutionGroup="gml:Definition"/>
<!-- =================================================== -->
<complexType name="PrimeMeridianBaseType" abstract="true">
<annotation>
<documentation>Basic encoding for prime meridian objects, simplifying and restricting the DefinitionType as needed. </documentation>
</annotation>
<complexContent>
<restriction base="gml:DefinitionType">
<sequence>
<element ref="gml:metaDataProperty" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:meridianName"/>
</sequence>
<attribute ref="gml:id" use="required"/>
</restriction>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="meridianName" type="gml:CodeType" substitutionGroup="gml:name">
<annotation>
<documentation>The name by which this prime meridian is identified. The meridianName most common value is Greenwich, and that value shall be used when the greenwichLongitude value is zero. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<complexType name="PrimeMeridianType">
<annotation>
<documentation>A prime meridian defines the origin from which longitude values are determined.</documentation>
</annotation>
<complexContent>
<extension base="gml:PrimeMeridianBaseType">
<sequence>
<element ref="gml:meridianID" minOccurs="0" maxOccurs="unbounded">
<annotation>
<documentation>Set of alternative identifications of this prime meridian. The first meridianID, if any, is normally the primary identification code, and any others are aliases. </documentation>
</annotation>
</element>
<element ref="gml:remarks" minOccurs="0">
<annotation>
<documentation>Comments on or information about this prime meridian, including source information. </documentation>
</annotation>
</element>
<element ref="gml:greenwichLongitude"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="meridianID" type="gml:IdentifierType">
<annotation>
<documentation>An identification of a prime meridian. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="greenwichLongitude" type="gml:AngleChoiceType">
<annotation>
<documentation>Longitude of the prime meridian measured from the Greenwich meridian, positive eastward. The greenwichLongitude most common value is zero, and that value shall be used when the meridianName value is Greenwich. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="primeMeridianRef" type="gml:PrimeMeridianRefType"/>
<!-- =================================================== -->
<complexType name="PrimeMeridianRefType">
<annotation>
<documentation>Association to a prime meridian, either referencing or containing the definition of that meridian. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:PrimeMeridian"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="Ellipsoid" type="gml:EllipsoidType" substitutionGroup="gml:Definition"/>
<!-- =================================================== -->
<complexType name="EllipsoidBaseType" abstract="true">
<annotation>
<documentation>Basic encoding for ellipsoid objects, simplifying and restricting the DefinitionType as needed. </documentation>
</annotation>
<complexContent>
<restriction base="gml:DefinitionType">
<sequence>
<element ref="gml:metaDataProperty" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:ellipsoidName"/>
</sequence>
<attribute ref="gml:id" use="required"/>
</restriction>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="ellipsoidName" type="gml:CodeType" substitutionGroup="gml:name">
<annotation>
<documentation>The name by which this ellipsoid is identified. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<complexType name="EllipsoidType">
<annotation>
<documentation>An ellipsoid is a geometric figure that can be used to describe the approximate shape of the earth. In mathematical terms, it is a surface formed by the rotation of an ellipse about its minor axis.</documentation>
</annotation>
<complexContent>
<extension base="gml:EllipsoidBaseType">
<sequence>
<element ref="gml:ellipsoidID" minOccurs="0" maxOccurs="unbounded">
<annotation>
<documentation>Set of alternative identifications of this ellipsoid. The first ellipsoidID, if any, is normally the primary identification code, and any others are aliases. </documentation>
</annotation>
</element>
<element ref="gml:remarks" minOccurs="0">
<annotation>
<documentation>Comments on or information about this ellipsoid, including source information. </documentation>
</annotation>
</element>
<element ref="gml:semiMajorAxis"/>
<element ref="gml:secondDefiningParameter"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =================================================== -->
<element name="ellipsoidID" type="gml:IdentifierType">
<annotation>
<documentation>An identification of an ellipsoid. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="semiMajorAxis" type="gml:MeasureType">
<annotation>
<documentation>Length of the semi-major axis of the ellipsoid, with its units. Uses the MeasureType with the restriction that the unit of measure referenced by uom must be suitable for a length, such as metres or feet. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="ellipsoidRef" type="gml:EllipsoidRefType"/>
<!-- =================================================== -->
<complexType name="EllipsoidRefType">
<annotation>
<documentation>Association to an ellipsoid, either referencing or containing the definition of that ellipsoid. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:Ellipsoid"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =================================================== -->
<element name="secondDefiningParameter" type="gml:SecondDefiningParameterType"/>
<!-- =================================================== -->
<complexType name="SecondDefiningParameterType">
<annotation>
<documentation>Definition of the second parameter that defines the shape of an ellipsoid. An ellipsoid requires two defining parameters: semi-major axis and inverse flattening or semi-major axis and semi-minor axis. When the reference body is a sphere rather than an ellipsoid, only a single defining parameter is required, namely the radius of the sphere; in that case, the semi-major axis "degenerates" into the radius of the sphere.</documentation>
</annotation>
<choice>
<element ref="gml:inverseFlattening"/>
<element ref="gml:semiMinorAxis"/>
<element ref="gml:isSphere"/>
</choice>
</complexType>
<!-- =================================================== -->
<element name="inverseFlattening" type="gml:MeasureType">
<annotation>
<documentation>Inverse flattening value of the ellipsoid. Value is a scale factor (or ratio) that has no physical unit. Uses the MeasureType with the restriction that the unit of measure referenced by uom must be suitable for a scale factor, such as percent, permil, or parts-per-million. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="semiMinorAxis" type="gml:MeasureType">
<annotation>
<documentation>Length of the semi-minor axis of the ellipsoid. Uses the MeasureType with the restriction that the unit of measure referenced by uom must be suitable for a length, such as metres or feet. </documentation>
</annotation>
</element>
<!-- =================================================== -->
<element name="isSphere">
<annotation>
<documentation>The ellipsoid is degenerate and is actually a sphere. The sphere is completely defined by the semi-major axis, which is the radius of the sphere. </documentation>
</annotation>
<simpleType>
<restriction base="string">
<enumeration value="sphere"/>
</restriction>
</simpleType>
</element>
<!-- =================================================== -->
</schema>
<?xml version="1.0" encoding="UTF-8"?>
<schema targetNamespace="http://www.opengis.net/gml" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml" xmlns:smil20="http://www.w3.org/2001/SMIL20/" elementFormDefault="qualified" version="3.1.0">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-defaultStyle:v3.1.0">defaultStyle.xsd</appinfo>
<documentation>Default Style schema for GML 3.1.0
Copyright (c) 2001-2005 OGC, All Rights Reserved. For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr
Compliance: reference to ISO Specifications</documentation>
</annotation>
<!-- ==============================================================
includes and imports
============================================================== -->
<include schemaLocation="measures.xsd"/>
<import namespace="http://www.w3.org/2001/SMIL20/" schemaLocation="../smil/smil20.xsd"/>
<!-- ==============================================================
the Style property
============================================================== -->
<element name="defaultStyle" type="gml:DefaultStylePropertyType">
<annotation>
<documentation>Top-level property. Used in application schemas to "attach" the styling information to GML data. The link between the data and the style should be established through this property only.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="DefaultStylePropertyType">
<annotation>
<documentation>[complexType of] Top-level property. Used in application schemas to "attach" the styling information to GML data. The link between the data and the style should be established through this property only.</documentation>
</annotation>
<sequence>
<element ref="gml:_Style" minOccurs="0"/>
</sequence>
<attribute name="about" type="anyURI" use="optional"/>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- ==============================================================
the Style
============================================================== -->
<element name="_Style" type="gml:AbstractStyleType" abstract="true" substitutionGroup="gml:_GML">
<annotation>
<documentation>The value of the top-level property. It is an abstract element. Used as the head element of the substitution group for extensibility purposes.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="AbstractStyleType" abstract="true">
<annotation>
<documentation>[complexType of] The value of the top-level property. It is an abstract element. Used as the head element of the substitution group for extensibility purposes.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGMLType"/>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="Style" type="gml:StyleType" substitutionGroup="gml:_Style">
<annotation>
<documentation>Predefined concrete value of the top-level property. Encapsulates all other styling information.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="StyleType">
<annotation>
<documentation>[complexType of] Predefined concrete value of the top-level property. Encapsulates all other styling information.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractStyleType">
<sequence>
<element ref="gml:featureStyle" maxOccurs="unbounded"/>
<element ref="gml:graphStyle" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- ==============================================================
Feature Style Property
============================================================== -->
<element name="featureStyle" type="gml:FeatureStylePropertyType">
<annotation>
<documentation/>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="FeatureStylePropertyType">
<annotation>
<documentation/>
</annotation>
<sequence>
<element ref="gml:FeatureStyle" minOccurs="0"/>
</sequence>
<attribute name="about" type="anyURI" use="optional"/>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- ==============================================================
Feature Style
============================================================== -->
<element name="FeatureStyle" type="gml:FeatureStyleType" substitutionGroup="gml:_GML">
<annotation>
<documentation>The style descriptor for features.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="FeatureStyleType">
<annotation>
<documentation>[complexType of] The style descriptor for features.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGMLType">
<sequence>
<element name="featureConstraint" type="string" minOccurs="0"/>
<element ref="gml:geometryStyle" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:topologyStyle" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:labelStyle" minOccurs="0"/>
</sequence>
<attribute name="featureType" type="string" use="optional"/>
<attribute name="baseType" type="string" use="optional"/>
<attribute name="queryGrammar" type="gml:QueryGrammarEnumeration"/>
</extension>
</complexContent>
</complexType>
<!-- =========================================================== -->
<simpleType name="QueryGrammarEnumeration">
<annotation>
<documentation>Used to specify the grammar of the feature query mechanism.</documentation>
</annotation>
<restriction base="string">
<enumeration value="xpath"/>
<enumeration value="xquery"/>
<enumeration value="other"/>
</restriction>
</simpleType>
<!-- ==============================================================
Base style descriptor type (for geometry, topology, label, graph)
============================================================== -->
<complexType name="BaseStyleDescriptorType">
<annotation>
<documentation>Base complex type for geometry, topology, label and graph styles.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGMLType">
<sequence>
<element name="spatialResolution" type="gml:ScaleType" minOccurs="0"/>
<element name="styleVariation" type="gml:StyleVariationType" minOccurs="0" maxOccurs="unbounded"/>
<element ref="smil20:animate" minOccurs="0" maxOccurs="unbounded"/>
<element ref="smil20:animateMotion" minOccurs="0" maxOccurs="unbounded"/>
<element ref="smil20:animateColor" minOccurs="0" maxOccurs="unbounded"/>
<element ref="smil20:set" minOccurs="0" maxOccurs="unbounded"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- ==============================================================
Geometry Style Property
============================================================== -->
<element name="geometryStyle" type="gml:GeometryStylePropertyType">
<annotation>
<documentation/>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="GeometryStylePropertyType">
<annotation>
<documentation/>
</annotation>
<sequence>
<element ref="gml:GeometryStyle" minOccurs="0"/>
</sequence>
<attribute name="about" type="anyURI" use="optional"/>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- ==============================================================
Geometry Style
============================================================== -->
<element name="GeometryStyle" type="gml:GeometryStyleType" substitutionGroup="gml:_GML">
<annotation>
<documentation>The style descriptor for geometries of a feature.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="GeometryStyleType">
<annotation>
<documentation>[complexType of] The style descriptor for geometries of a feature.</documentation>
</annotation>
<complexContent>
<extension base="gml:BaseStyleDescriptorType">
<sequence>
<choice>
<element ref="gml:symbol"/>
<element name="style" type="string">
<annotation>
<appinfo>deprecated</appinfo>
<documentation>Deprecated in GML version 3.1.0. Use symbol with inline content instead.</documentation>
</annotation>
</element>
</choice>
<element ref="gml:labelStyle" minOccurs="0"/>
</sequence>
<attribute name="geometryProperty" type="string"/>
<attribute name="geometryType" type="string"/>
</extension>
</complexContent>
</complexType>
<!-- ==============================================================
Topology Style Property
============================================================== -->
<element name="topologyStyle" type="gml:TopologyStylePropertyType">
<annotation>
<documentation/>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="TopologyStylePropertyType">
<annotation>
<documentation/>
</annotation>
<sequence>
<element ref="gml:TopologyStyle" minOccurs="0"/>
</sequence>
<attribute name="about" type="anyURI" use="optional"/>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- ==============================================================
Topology Style
============================================================== -->
<element name="TopologyStyle" type="gml:TopologyStyleType" substitutionGroup="gml:_GML">
<annotation>
<documentation>The style descriptor for topologies of a feature. Describes individual topology elements styles.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="TopologyStyleType">
<annotation>
<documentation>[complexType of] The style descriptor for topologies of a feature. Describes individual topology elements styles.</documentation>
</annotation>
<complexContent>
<extension base="gml:BaseStyleDescriptorType">
<sequence>
<choice>
<element ref="gml:symbol"/>
<element name="style" type="string">
<annotation>
<appinfo>deprecated</appinfo>
<documentation>Deprecated in GML version 3.1.0. Use symbol with inline content instead.</documentation>
</annotation>
</element>
</choice>
<element ref="gml:labelStyle" minOccurs="0"/>
</sequence>
<attribute name="topologyProperty" type="string"/>
<attribute name="topologyType" type="string"/>
</extension>
</complexContent>
</complexType>
<!-- ==============================================================
Label Style Property
============================================================== -->
<element name="labelStyle" type="gml:LabelStylePropertyType">
<annotation>
<documentation/>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="LabelStylePropertyType">
<annotation>
<documentation/>
</annotation>
<sequence>
<element ref="gml:LabelStyle" minOccurs="0"/>
</sequence>
<attribute name="about" type="anyURI" use="optional"/>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- ==============================================================
Label Style
============================================================== -->
<element name="LabelStyle" type="gml:LabelStyleType" substitutionGroup="gml:_GML">
<annotation>
<documentation>The style descriptor for labels of a feature, geometry or topology.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="LabelStyleType">
<annotation>
<documentation>[complexType of] The style descriptor for labels of a feature, geometry or topology.</documentation>
</annotation>
<complexContent>
<extension base="gml:BaseStyleDescriptorType">
<sequence>
<element name="style" type="string"/>
<element name="label" type="gml:LabelType"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- ==============================================================
Graph Style Property
============================================================== -->
<element name="graphStyle" type="gml:GraphStylePropertyType">
<annotation>
<documentation/>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="GraphStylePropertyType">
<annotation>
<documentation/>
</annotation>
<sequence>
<element ref="gml:GraphStyle" minOccurs="0"/>
</sequence>
<attribute name="about" type="anyURI" use="optional"/>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- ==============================================================
Graph Style
============================================================== -->
<element name="GraphStyle" type="gml:GraphStyleType" substitutionGroup="gml:_GML">
<annotation>
<documentation>The style descriptor for a graph consisting of a number of features. Describes graph-specific style attributes.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="GraphStyleType">
<annotation>
<documentation>[complexType of] The style descriptor for a graph consisting of a number of features. Describes graph-specific style attributes.</documentation>
</annotation>
<complexContent>
<extension base="gml:BaseStyleDescriptorType">
<sequence>
<element name="planar" type="boolean" minOccurs="0"/>
<element name="directed" type="boolean" minOccurs="0"/>
<element name="grid" type="boolean" minOccurs="0"/>
<element name="minDistance" type="double" minOccurs="0"/>
<element name="minAngle" type="double" minOccurs="0"/>
<element name="graphType" type="gml:GraphTypeType" minOccurs="0"/>
<element name="drawingType" type="gml:DrawingTypeType" minOccurs="0"/>
<element name="lineType" type="gml:LineTypeType" minOccurs="0"/>
<element name="aestheticCriteria" type="gml:AesheticCriteriaType" minOccurs="0" maxOccurs="unbounded"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- ==============================================================
Common elements
============================================================== -->
<element name="symbol" type="gml:SymbolType">
<annotation>
<documentation>The symbol property. Extends the gml:AssociationType to allow for remote referencing of symbols.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="SymbolType">
<annotation>
<documentation>[complexType of] The symbol property. Allows for remote referencing of symbols.</documentation>
</annotation>
<sequence>
<any processContents="skip" minOccurs="0" maxOccurs="unbounded"/>
</sequence>
<attribute name="symbolType" type="gml:SymbolTypeEnumeration" use="required"/>
<attribute ref="gml:transform" use="optional"/>
<attribute name="about" type="anyURI" use="optional"/>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- =========================================================== -->
<simpleType name="SymbolTypeEnumeration">
<annotation>
<documentation>Used to specify the type of the symbol used.</documentation>
</annotation>
<restriction base="string">
<enumeration value="svg"/>
<enumeration value="xpath"/>
<enumeration value="other"/>
</restriction>
</simpleType>
<!-- =========================================================== -->
<complexType name="LabelType" mixed="true">
<annotation>
<documentation>Label is mixed -- composed of text and XPath expressions used to extract the useful information from the feature.</documentation>
</annotation>
<sequence>
<element name="LabelExpression" type="string" minOccurs="0" maxOccurs="unbounded"/>
</sequence>
<attribute ref="gml:transform" use="optional"/>
</complexType>
<!-- =========================================================== -->
<attribute name="transform" type="string">
<annotation>
<documentation>Defines the geometric transformation of entities. There is no particular grammar defined for this value.</documentation>
</annotation>
</attribute>
<!-- =========================================================== -->
<complexType name="StyleVariationType">
<annotation>
<documentation>Used to vary individual graphic parameters and attributes of the style, symbol or text.</documentation>
</annotation>
<simpleContent>
<extension base="string">
<attribute name="styleProperty" type="string" use="required"/>
<attribute name="featurePropertyRange" type="string" use="optional"/>
</extension>
</simpleContent>
</complexType>
<!-- ==============================================================
Graph parameters types
============================================================== -->
<simpleType name="GraphTypeType">
<annotation>
<documentation>Graph-specific styling property.</documentation>
</annotation>
<restriction base="string">
<enumeration value="TREE"/>
<enumeration value="BICONNECTED"/>
</restriction>
</simpleType>
<!-- =========================================================== -->
<simpleType name="DrawingTypeType">
<annotation>
<documentation>Graph-specific styling property.</documentation>
</annotation>
<restriction base="string">
<enumeration value="POLYLINE"/>
<enumeration value="ORTHOGONAL"/>
</restriction>
</simpleType>
<!-- =========================================================== -->
<simpleType name="LineTypeType">
<annotation>
<documentation>Graph-specific styling property.</documentation>
</annotation>
<restriction base="string">
<enumeration value="STRAIGHT"/>
<enumeration value="BENT"/>
</restriction>
</simpleType>
<!-- =========================================================== -->
<simpleType name="AesheticCriteriaType">
<annotation>
<documentation>Graph-specific styling property.</documentation>
</annotation>
<restriction base="string">
<enumeration value="MIN_CROSSINGS"/>
<enumeration value="MIN_AREA"/>
<enumeration value="MIN_BENDS"/>
<enumeration value="MAX_BENDS"/>
<enumeration value="UNIFORM_BENDS"/>
<enumeration value="MIN_SLOPES"/>
<enumeration value="MIN_EDGE_LENGTH"/>
<enumeration value="MAX_EDGE_LENGTH"/>
<enumeration value="UNIFORM_EDGE_LENGTH"/>
<enumeration value="MAX_ANGULAR_RESOLUTION"/>
<enumeration value="MIN_ASPECT_RATIO"/>
<enumeration value="MAX_SYMMETRIES"/>
</restriction>
</simpleType>
</schema>
<?xml version="1.0" encoding="UTF-8"?>
<schema targetNamespace="http://www.opengis.net/gml" elementFormDefault="qualified" version="3.1.1" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd:dictionary:3.1.1"/>
<documentation>
Dictionary schema for GML 3.1.1
Components to support the lists of definitions.
Copyright (c) 2005 OGC, All Rights Reserved.
For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr</documentation>
</annotation>
<!-- ========================================================
includes and imports
======================================================== -->
<include schemaLocation="gmlBase.xsd"/>
<!-- ===================================================== -->
<!-- ===================================================== -->
<!-- === Dictionary and Definition components === -->
<!-- ===================================================== -->
<group name="StandardDefinitionProperties">
<annotation>
<documentation>This content model group makes it easier to construct types that
derive from DefinitionType and its descendents "by restriction".
A reference to the group saves having to enumerate the standard definition properties.
See definition of StandardObjectProperties for more documentation</documentation>
</annotation>
<sequence>
<element ref="gml:metaDataProperty" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:description" minOccurs="0"/>
<element ref="gml:name" maxOccurs="unbounded"/>
</sequence>
</group>
<!-- ===================================================== -->
<element name="Definition" type="gml:DefinitionType" substitutionGroup="gml:_GML"/>
<!-- ===================================================== -->
<complexType name="DefinitionType">
<annotation>
<documentation>A definition, which can be included in or referenced by a dictionary. In this extended type, the inherited "description" optional element can hold the definition whenever only text is needed. The inherited "name" elements can provide one or more brief terms for which this is the definition. The inherited "metaDataProperty" elements can be used to reference or include more information about this definition.
The gml:id attribute is required - it must be possible to reference this definition using this handle. </documentation>
</annotation>
<complexContent>
<restriction base="gml:AbstractGMLType">
<sequence>
<element ref="gml:metaDataProperty" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:description" minOccurs="0"/>
<element ref="gml:name" maxOccurs="unbounded"/>
</sequence>
<attribute ref="gml:id" use="required"/>
</restriction>
</complexContent>
</complexType>
<!-- ===================================================== -->
<element name="Dictionary" type="gml:DictionaryType" substitutionGroup="gml:Definition"/>
<element name="DefinitionCollection" type="gml:DictionaryType" substitutionGroup="gml:Definition"/>
<!-- ===================================================== -->
<complexType name="DictionaryType">
<annotation>
<documentation>A non-abstract bag that is specialized for use as a dictionary which contains a set of definitions. These definitions are referenced from other places, in the same and different XML documents. In this restricted type, the inherited optional "description" element can be used for a description of this dictionary. The inherited optional "name" element can be used for the name(s) of this dictionary. The inherited "metaDataProperty" elements can be used to reference or contain more information about this dictionary. The inherited required gml:id attribute allows the dictionary to be referenced using this handle. </documentation>
</annotation>
<complexContent>
<extension base="gml:DefinitionType">
<sequence minOccurs="0" maxOccurs="unbounded">
<choice>
<element ref="gml:dictionaryEntry">
<annotation>
<documentation>An entry in this dictionary. The content of an entry can itself be a lower level dictionary or definition collection. This element follows the standard GML property model, so the value may be provided directly or by reference. Note that if the value is provided by reference, this definition does not carry a handle (gml:id) in this context, so does not allow external references to this specific entry in this context. When used in this way the referenced definition will usually be in a dictionary in the same XML document. </documentation>
</annotation>
</element>
<element ref="gml:indirectEntry">
<annotation>
<documentation>An identified reference to a remote entry in this dictionary, to be used when this entry should be identified to allow external references to this specific entry. </documentation>
</annotation>
</element>
</choice>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- ===================================================== -->
<element name="dictionaryEntry" type="gml:DictionaryEntryType"/>
<element name="definitionMember" type="gml:DictionaryEntryType" substitutionGroup="gml:dictionaryEntry"/>
<!-- ===================================================== -->
<complexType name="DictionaryEntryType">
<annotation>
<documentation>An entry in a dictionary of definitions. An instance of this type contains or refers to a definition object.
The number of definitions contained in this dictionaryEntry is restricted to one, but a DefinitionCollection or Dictionary that contains multiple definitions can be substituted if needed. Specialized descendents of this dictionaryEntry might be restricted in an application schema to allow only including specified types of definitions as valid entries in a dictionary. </documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:Definition">
<annotation>
<documentation>This element in a dictionary entry contains the actual definition. </documentation>
</annotation>
</element>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup">
<annotation>
<documentation>A non-identified reference to a remote entry in this dictionary, to be used when this entry need not be identified to allow external references to this specific entry. The remote entry referenced will usually be in a dictionary in the same XML document. This element will usually be used in dictionaries that are inside of another dictionary. </documentation>
</annotation>
</attributeGroup>
</complexType>
<!-- ===================================================== -->
<element name="indirectEntry" type="gml:IndirectEntryType"/>
<!-- ===================================================== -->
<complexType name="IndirectEntryType">
<annotation>
<documentation>An entry in a dictionary of definitions that contains a GML object which references a remote definition object. This entry is expected to be convenient in allowing multiple elements in one XML document to contain short (abbreviated XPointer) references, which are resolved to an external definition provided in a Dictionary element in the same XML document. Specialized descendents of this dictionaryEntry might be restricted in an application schema to allow only including specified types of definitions as valid entries in a dictionary. </documentation>
</annotation>
<sequence>
<element ref="gml:DefinitionProxy"/>
</sequence>
</complexType>
<!-- ===================================================== -->
<element name="DefinitionProxy" type="gml:DefinitionProxyType" substitutionGroup="gml:Definition"/>
<!-- ===================================================== -->
<complexType name="DefinitionProxyType">
<annotation>
<documentation>A proxy entry in a dictionary of definitions. An element of this type contains a reference to a remote definition object. This entry is expected to be convenient in allowing multiple elements in one XML document to contain short (abbreviated XPointer) references, which are resolved to an external definition provided in a Dictionary element in the same XML document. </documentation>
</annotation>
<complexContent>
<extension base="gml:DefinitionType">
<sequence>
<element ref="gml:definitionRef">
<annotation>
<documentation>A reference to a remote entry in this dictionary, used when this dictionary entry is identified to allow external references to this specific entry. The remote entry referenced can be in a dictionary in the same or different XML document. </documentation>
</annotation>
</element>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- ===================================================== -->
<element name="definitionRef" type="gml:ReferenceType"/>
<!-- =========================================================== -->
</schema>
<?xml version="1.0" encoding="UTF-8"?>
<schema targetNamespace="http://www.opengis.net/gml" xmlns:gml="http://www.opengis.net/gml" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xlink="http://www.w3.org/1999/xlink" elementFormDefault="qualified"
version="3.1.1">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd:direction:3.1.1">direction.xsd</appinfo>
<documentation>This schema defines "direction" element and type.
Copyright (c) 2002-2005 OGC, All Rights Reserved.
For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr</documentation>
</annotation>
<!-- ==============================================================
includes and imports
============================================================== -->
<include schemaLocation="geometryBasic0d1d.xsd"/>
<!-- ============================================================== -->
<!--=================================================================== -->
<element name="direction" type="gml:DirectionPropertyType"/>
<!--=================================================================== -->
<complexType name="DirectionPropertyType">
<annotation>
<documentation/>
</annotation>
<choice>
<element ref="gml:DirectionVector"/>
<element ref="gml:CompassPoint"/>
<element name="DirectionKeyword" type="gml:CodeType"/>
<element name="DirectionString" type="gml:StringOrRefType"/>
</choice>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!--=================================================================== -->
<element name="DirectionVector" type="gml:DirectionVectorType"/>
<!--=================================================================== -->
<complexType name="DirectionVectorType">
<annotation>
<documentation>Direction expressed as a vector, either using components, or using angles.</documentation>
</annotation>
<choice>
<element ref="gml:vector"/>
<sequence>
<element name="horizontalAngle" type="gml:AngleType"/>
<element name="verticalAngle" type="gml:AngleType"/>
</sequence>
</choice>
</complexType>
<!--=================================================================== -->
<element name="CompassPoint" type="gml:CompassPointEnumeration"/>
<!--=================================================================== -->
<simpleType name="CompassPointEnumeration">
<restriction base="string">
<enumeration value="N"/>
<enumeration value="NNE"/>
<enumeration value="NE"/>
<enumeration value="ENE"/>
<enumeration value="E"/>
<enumeration value="ESE"/>
<enumeration value="SE"/>
<enumeration value="SSE"/>
<enumeration value="S"/>
<enumeration value="SSW"/>
<enumeration value="SW"/>
<enumeration value="WSW"/>
<enumeration value="W"/>
<enumeration value="WNW"/>
<enumeration value="NW"/>
<enumeration value="NNW"/>
</restriction>
</simpleType>
<!--=================================================================== -->
</schema>
\ No newline at end of file
<?xml version="1.0" encoding="UTF-8"?>
<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">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd:dynamicFeature:3.1.1"/>
<documentation xml:lang="en">Basic support for tracking moving objects and objects with changing state.
Copyright (c) 2002-2005 OGC, All Rights Reserved.
For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr</documentation>
</annotation>
<!-- ================================================================== -->
<include schemaLocation="feature.xsd"/>
<include schemaLocation="direction.xsd"/>
<!-- ================================================================== -->
<element name="dataSource" type="gml:StringOrRefType"/>
<element name="status" type="gml:StringOrRefType"/>
<!-- ================================================================== -->
<element name="_TimeSlice" type="gml:AbstractTimeSliceType" abstract="true" substitutionGroup="gml:_GML"/>
<!-- ===================================== -->
<complexType name="AbstractTimeSliceType" abstract="true">
<annotation>
<documentation xml:lang="en">A timeslice encapsulates the time-varying properties of a dynamic feature--it
must be extended to represent a timestamped projection of a feature. The dataSource
property describes how the temporal data was acquired.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGMLType">
<sequence>
<element ref="gml:validTime"/>
<element ref="gml:dataSource" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- ================================================================== -->
<element name="MovingObjectStatus" type="gml:MovingObjectStatusType" substitutionGroup="gml:_TimeSlice"/>
<!-- ===================================== -->
<complexType name="MovingObjectStatusType">
<annotation>
<documentation xml:lang="en">This type encapsulates various dynamic properties of moving objects
(points, lines, regions). It is useful for dealing with features whose
geometry or topology changes over time.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractTimeSliceType">
<sequence>
<element ref="gml:location"/>
<element name="speed" type="gml:MeasureType" minOccurs="0"/>
<element name="bearing" type="gml:DirectionPropertyType" minOccurs="0"/>
<element name="acceleration" type="gml:MeasureType" minOccurs="0"/>
<element name="elevation" type="gml:MeasureType" minOccurs="0"/>
<element ref="gml:status" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- ================================================================== -->
<element name="history" type="gml:HistoryPropertyType"/>
<!-- ===================================== -->
<complexType name="HistoryPropertyType">
<annotation>
<documentation xml:lang="en">The history relationship associates a feature with a sequence of TimeSlice instances.</documentation>
</annotation>
<sequence maxOccurs="unbounded">
<element ref="gml:_TimeSlice"/>
</sequence>
</complexType>
<!-- ================================================================== -->
<element name="track" type="gml:TrackType" substitutionGroup="gml:history"/>
<!-- ===================================== -->
<complexType name="TrackType">
<annotation>
<documentation xml:lang="en">The track of a moving object is a sequence of specialized timeslices that indicate the status of the object.</documentation>
</annotation>
<complexContent>
<restriction base="gml:HistoryPropertyType">
<sequence maxOccurs="unbounded">
<element ref="gml:MovingObjectStatus"/>
</sequence>
</restriction>
</complexContent>
</complexType>
<!-- ================================================================== -->
<group name="dynamicProperties">
<sequence>
<element ref="gml:validTime" minOccurs="0"/>
<element ref="gml:history" minOccurs="0"/>
<element ref="gml:dataSource" minOccurs="0"/>
</sequence>
</group>
<!-- ================================================================== -->
<complexType name="DynamicFeatureType">
<annotation>
<documentation>A dynamic feature may possess a history and/or a timestamp.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractFeatureType">
<group ref="gml:dynamicProperties"/>
</extension>
</complexContent>
</complexType>
<!-- ===================================== -->
<complexType name="DynamicFeatureCollectionType">
<annotation>
<documentation>A dynamic feature collection may possess a history and/or a timestamp.</documentation>
</annotation>
<complexContent>
<extension base="gml:FeatureCollectionType">
<group ref="gml:dynamicProperties"/>
</extension>
</complexContent>
</complexType>
<!-- ===================================== -->
</schema>
\ No newline at end of file
<?xml version="1.0" encoding="UTF-8"?>
<schema targetNamespace="http://www.opengis.net/gml" xmlns="http://www.w3.org/2001/XMLSchema"
xmlns:sch="http://www.ascc.net/xml/schematron" xmlns:gml="http://www.opengis.net/gml" elementFormDefault="qualified"
version="3.1.1">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd:feature:v3.1.1"/>
<documentation>GML Feature schema. Copyright (c) 2001-2005 OGC, All Rights Reserved. For conditions, see OGC Software
Notice http://www.opengeospatial.org/about/?page=ipr</documentation>
</annotation>
<!-- ============================================================== -->
<!-- ================== includes and imports ======================= -->
<!-- ============================================================== -->
<include schemaLocation="geometryBasic2d.xsd"/>
<include schemaLocation="temporal.xsd"/>
<!-- ============================================================== -->
<element name="_Feature" type="gml:AbstractFeatureType" abstract="true" substitutionGroup="gml:_GML"/>
<!-- =========================================================== -->
<complexType name="AbstractFeatureType" abstract="true">
<annotation>
<documentation>An abstract feature provides a set of common properties, including id, metaDataProperty, name and
description inherited from AbstractGMLType, plus boundedBy. A concrete feature type must derive from this type and
specify additional properties in an application schema. A feature must possess an identifying attribute ('id' -
'fid' has been deprecated).</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGMLType">
<sequence>
<element ref="gml:boundedBy" minOccurs="0"/>
<element ref="gml:location" minOccurs="0">
<annotation>
<appinfo>deprecated</appinfo>
<documentation>deprecated in GML version 3.1</documentation>
</annotation>
</element>
<element ref="gml:_ADEComponent" minOccurs="0" maxOccurs="unbounded"/>
<!-- additional properties must be specified in an application schema -->
</sequence>
</extension>
</complexContent>
</complexType>
<!-- ============================================================== -->
<!-- =========================================================== -->
<element name="boundedBy" type="gml:BoundingShapeType"/>
<!-- ====================================================================== -->
<complexType name="BoundingShapeType">
<annotation>
<documentation>Bounding shape.</documentation>
</annotation>
<sequence>
<choice>
<element ref="gml:Envelope"/>
<element ref="gml:Null"/>
</choice>
</sequence>
</complexType>
<!-- =========================================================== -->
<element name="EnvelopeWithTimePeriod" type="gml:EnvelopeWithTimePeriodType" substitutionGroup="gml:Envelope"/>
<!-- ====================================================================== -->
<complexType name="EnvelopeWithTimePeriodType">
<annotation>
<documentation>Envelope that includes also a temporal extent.</documentation>
</annotation>
<complexContent>
<extension base="gml:EnvelopeType">
<sequence>
<element ref="gml:timePosition" minOccurs="2" maxOccurs="2"/>
</sequence>
<attribute name="frame" type="anyURI" use="optional" default="#ISO-8601"/>
</extension>
</complexContent>
</complexType>
<!-- ====================================================================== -->
<!-- ===== property for feature association ==== -->
<element name="featureMember" type="gml:FeaturePropertyType"/>
<element name="featureProperty" type="gml:FeaturePropertyType"/>
<!-- ============================================================== -->
<complexType name="FeaturePropertyType">
<annotation>
<documentation>Container for a feature - follow gml:AssociationType pattern.</documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:_Feature"/>
<element ref="gml:_ADEComponent" minOccurs="0"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- ============================================================== -->
<!-- ===== property for association of an array of features ===== -->
<element name="featureMembers" type="gml:FeatureArrayPropertyType"/>
<!-- =========================================================== -->
<complexType name="FeatureArrayPropertyType">
<annotation>
<documentation>Container for features - follow gml:ArrayAssociationType pattern.</documentation>
</annotation>
<sequence>
<element ref="gml:_Feature" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:_ADEComponent" minOccurs="0" maxOccurs="unbounded"/>
</sequence>
</complexType>
<!-- ============================================================== -->
<!-- =========================================================== -->
<element name="_FeatureCollection" type="gml:AbstractFeatureCollectionType" abstract="true" substitutionGroup="gml:_Feature"/>
<!-- =========================================================== -->
<complexType name="AbstractFeatureCollectionType" abstract="true">
<annotation>
<documentation>A feature collection contains zero or more features.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractFeatureType">
<sequence>
<element ref="gml:featureMember" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:featureMembers" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="FeatureCollection" type="gml:FeatureCollectionType" substitutionGroup="gml:_Feature"/>
<!-- =========================================================== -->
<complexType name="FeatureCollectionType">
<annotation>
<documentation>Concrete generic feature collection.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractFeatureCollectionType"/>
</complexContent>
</complexType>
<!-- ============================================================== -->
<!-- ============================================================== -->
<element name="LocationKeyWord" type="gml:CodeType"/>
<element name="LocationString" type="gml:StringOrRefType"/>
<!-- =========================================================== -->
<!-- ============= common aliases for geometry properties =============== -->
<element name="centerOf" type="gml:PointPropertyType"/>
<element name="position" type="gml:PointPropertyType"/>
<element name="edgeOf" type="gml:CurvePropertyType"/>
<element name="centerLineOf" type="gml:CurvePropertyType"/>
<element name="extentOf" type="gml:SurfacePropertyType"/>
<!-- =========================================================== -->
<!-- ================= deprecated components =========================== -->
<complexType name="BoundedFeatureType" abstract="true">
<annotation>
<documentation>Makes boundedBy mandatory</documentation>
</annotation>
<complexContent>
<restriction base="gml:AbstractFeatureType">
<sequence>
<group ref="gml:StandardObjectProperties"/>
<element ref="gml:boundedBy"/>
<element ref="gml:location" minOccurs="0">
<annotation>
<appinfo>deprecated</appinfo>
<documentation>deprecated in GML version 3.1</documentation>
</annotation>
</element>
</sequence>
</restriction>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="location" type="gml:LocationPropertyType">
<annotation>
<documentation>Deprecated in GML 3.1.0</documentation>
</annotation>
</element>
<!-- ============================================================== -->
<complexType name="LocationPropertyType">
<annotation>
<documentation>Convenience property for generalised location. A representative location for plotting or analysis.
Often augmented by one or more additional geometry properties with more specific semantics.</documentation>
<documentation>Deprecated in GML 3.1.0</documentation>
</annotation>
<sequence minOccurs="0">
<choice>
<element ref="gml:_Geometry"/>
<element ref="gml:LocationKeyWord"/>
<element ref="gml:LocationString"/>
<element ref="gml:Null"/>
</choice>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup"/>
</complexType>
<!-- ============================================================== -->
<element name="priorityLocation" type="gml:PriorityLocationPropertyType" substitutionGroup="gml:location">
<annotation>
<documentation>Deprecated in GML 3.1.0</documentation>
</annotation>
</element>
<!-- ============================================================== -->
<complexType name="PriorityLocationPropertyType">
<annotation>
<documentation>G-XML component</documentation>
<documentation>Deprecated in GML 3.1.0</documentation>
</annotation>
<complexContent>
<extension base="gml:LocationPropertyType">
<attribute name="priority" type="string" use="optional"/>
</extension>
</complexContent>
</complexType>
<!-- ============================================================== -->
</schema>
<?xml version="1.0" encoding="UTF-8"?>
<schema targetNamespace="http://www.opengis.net/gml" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:sch="http://www.ascc.net/xml/schematron" xmlns:gml="http://www.opengis.net/gml" xmlns:xlink="http://www.w3.org/1999/xlink" elementFormDefault="qualified"
version="3.1.1">
<annotation>
<appinfo source="urn:opengis:specification:gml:schema-xsd:geometryAggregates:3.1.1">geometryAggregates.xsd</appinfo>
<documentation>Copyright (c) 2001-2005 OGC, All Rights Reserved.
For conditions, see OGC Software Notice http://www.opengeospatial.org/about/?page=ipr</documentation>
</annotation>
<include schemaLocation="geometryPrimitives.xsd"/>
<!-- =========================================================== -->
<!-- aggregate geometry objects -->
<!-- =========================================================== -->
<!-- =========================================================== -->
<element name="_GeometricAggregate" type="gml:AbstractGeometricAggregateType" abstract="true" substitutionGroup="gml:_Geometry">
<annotation>
<documentation>The "_GeometricAggregate" element is the abstract head of the substituition group for all geometric aggremates.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="AbstractGeometricAggregateType" abstract="true">
<annotation>
<documentation>This is the abstract root type of the geometric aggregates.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGeometryType"/>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="MultiGeometry" type="gml:MultiGeometryType" substitutionGroup="gml:_GeometricAggregate"/>
<!-- ======================================================= -->
<complexType name="MultiGeometryType">
<annotation>
<documentation>A geometry collection must include one or more geometries, referenced through geometryMember elements.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGeometricAggregateType">
<sequence>
<annotation>
<documentation>The members of the geometric aggregate can be specified either using the "standard" property or the array property style. It is also valid to use both the "standard" and the array property style in the same collection.
NOTE: Array properties cannot reference remote geometry elements.</documentation>
</annotation>
<element ref="gml:geometryMember" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:geometryMembers" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="multiGeometryProperty" type="gml:MultiGeometryPropertyType">
<annotation>
<appinfo>
<sch:pattern name="Check either href or content not both">
<sch:rule context="gml:multiGeometryProperty">
<sch:extends rule="hrefOrContent"/>
</sch:rule>
</sch:pattern>
</appinfo>
<documentation>This property element either references a geometric aggregate via the XLink-attributes or contains the "multi geometry" element. multiGeometryProperty is the predefined property which can be used by GML Application Schemas whenever a GML Feature has a property with a value that is substitutable for _GeometricAggregate.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="MultiGeometryPropertyType">
<annotation>
<documentation>A property that has a geometric aggregate as its value domain can either be an appropriate geometry element encapsulated in an element of this type or an XLink reference to a remote geometry element (where remote includes geometry elements located elsewhere in the same document). Either the reference or the contained element must be given, but neither both nor none.</documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:_GeometricAggregate"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup">
<annotation>
<documentation>This attribute group includes the XLink attributes (see xlinks.xsd). XLink is used in GML to reference remote resources (including those elsewhere in the same document). A simple link element can be constructed by including a specific set of XLink attributes. The XML Linking Language (XLink) is currently a Proposed Recommendation of the World Wide Web Consortium. XLink allows elements to be inserted into XML documents so as to create sophisticated links between resources; such links can be used to reference remote properties.
A simple link element can be used to implement pointer functionality, and this functionality has been built into various GML 3 elements by including the gml:AssociationAttributeGroup.</documentation>
</annotation>
</attributeGroup>
</complexType>
<!-- =========================================================== -->
<element name="MultiPoint" type="gml:MultiPointType" substitutionGroup="gml:_GeometricAggregate"/>
<!-- ======================================================= -->
<complexType name="MultiPointType">
<annotation>
<documentation>A MultiPoint is defined by one or more Points, referenced through pointMember elements.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGeometricAggregateType">
<sequence>
<annotation>
<documentation>The members of the geometric aggregate can be specified either using the "standard" property or the array property style. It is also valid to use both the "standard" and the array property style in the same collection.
NOTE: Array properties cannot reference remote geometry elements.</documentation>
</annotation>
<element ref="gml:pointMember" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:pointMembers" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="multiPointProperty" type="gml:MultiPointPropertyType">
<annotation>
<appinfo>
<sch:pattern name="Check either href or content not both">
<sch:rule context="gml:multiPointProperty">
<sch:extends rule="hrefOrContent"/>
</sch:rule>
</sch:pattern>
</appinfo>
<documentation>This property element either references a point aggregate via the XLink-attributes or contains the "multi point" element. multiPointProperty is the predefined property which can be used by GML Application Schemas whenever a GML Feature has a property with a value that is substitutable for MultiPoint.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="MultiPointPropertyType">
<annotation>
<documentation>A property that has a collection of points as its value domain can either be an appropriate geometry element encapsulated in an element of this type or an XLink reference to a remote geometry element (where remote includes geometry elements located elsewhere in the same document). Either the reference or the contained element must be given, but neither both nor none.</documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:MultiPoint"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup">
<annotation>
<documentation>This attribute group includes the XLink attributes (see xlinks.xsd). XLink is used in GML to reference remote resources (including those elsewhere in the same document). A simple link element can be constructed by including a specific set of XLink attributes. The XML Linking Language (XLink) is currently a Proposed Recommendation of the World Wide Web Consortium. XLink allows elements to be inserted into XML documents so as to create sophisticated links between resources; such links can be used to reference remote properties.
A simple link element can be used to implement pointer functionality, and this functionality has been built into various GML 3 elements by including the gml:AssociationAttributeGroup.</documentation>
</annotation>
</attributeGroup>
</complexType>
<!-- =========================================================== -->
<element name="MultiCurve" type="gml:MultiCurveType" substitutionGroup="gml:_GeometricAggregate"/>
<!-- ======================================================= -->
<complexType name="MultiCurveType">
<annotation>
<documentation>A MultiCurve is defined by one or more Curves, referenced through curveMember elements.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGeometricAggregateType">
<sequence>
<annotation>
<documentation>The members of the geometric aggregate can be specified either using the "standard" property or the array property style. It is also valid to use both the "standard" and the array property style in the same collection.
NOTE: Array properties cannot reference remote geometry elements.</documentation>
</annotation>
<element ref="gml:curveMember" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:curveMembers" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="multiCurveProperty" type="gml:MultiCurvePropertyType">
<annotation>
<appinfo>
<sch:pattern name="Check either href or content not both">
<sch:rule context="gml:multiCurveProperty">
<sch:extends rule="hrefOrContent"/>
</sch:rule>
</sch:pattern>
</appinfo>
<documentation>This property element either references a curve aggregate via the XLink-attributes or contains the "multi curve" element. multiCurveProperty is the predefined property which can be used by GML Application Schemas whenever a GML Feature has a property with a value that is substitutable for MultiCurve.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="MultiCurvePropertyType">
<annotation>
<documentation>A property that has a collection of curves as its value domain can either be an appropriate geometry element encapsulated in an element of this type or an XLink reference to a remote geometry element (where remote includes geometry elements located elsewhere in the same document). Either the reference or the contained element must be given, but neither both nor none.</documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:MultiCurve"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup">
<annotation>
<documentation>This attribute group includes the XLink attributes (see xlinks.xsd). XLink is used in GML to reference remote resources (including those elsewhere in the same document). A simple link element can be constructed by including a specific set of XLink attributes. The XML Linking Language (XLink) is currently a Proposed Recommendation of the World Wide Web Consortium. XLink allows elements to be inserted into XML documents so as to create sophisticated links between resources; such links can be used to reference remote properties.
A simple link element can be used to implement pointer functionality, and this functionality has been built into various GML 3 elements by including the gml:AssociationAttributeGroup.</documentation>
</annotation>
</attributeGroup>
</complexType>
<!-- =========================================================== -->
<element name="MultiSurface" type="gml:MultiSurfaceType" substitutionGroup="gml:_GeometricAggregate"/>
<!-- ======================================================= -->
<complexType name="MultiSurfaceType">
<annotation>
<documentation>A MultiSurface is defined by one or more Surfaces, referenced through surfaceMember elements.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGeometricAggregateType">
<sequence>
<annotation>
<documentation>The members of the geometric aggregate can be specified either using the "standard" property or the array property style. It is also valid to use both the "standard" and the array property style in the same collection.
NOTE: Array properties cannot reference remote geometry elements.</documentation>
</annotation>
<element ref="gml:surfaceMember" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:surfaceMembers" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="multiSurfaceProperty" type="gml:MultiSurfacePropertyType">
<annotation>
<appinfo>
<sch:pattern name="Check either href or content not both">
<sch:rule context="gml:multiSurfaceProperty">
<sch:extends rule="hrefOrContent"/>
</sch:rule>
</sch:pattern>
</appinfo>
<documentation>This property element either references a surface aggregate via the XLink-attributes or contains the "multi surface" element. multiSurfaceProperty is the predefined property which can be used by GML Application Schemas whenever a GML Feature has a property with a value that is substitutable for MultiSurface.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="MultiSurfacePropertyType">
<annotation>
<documentation>A property that has a collection of surfaces as its value domain can either be an appropriate geometry element encapsulated in an element of this type or an XLink reference to a remote geometry element (where remote includes geometry elements located elsewhere in the same document). Either the reference or the contained element must be given, but neither both nor none.</documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:MultiSurface"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup">
<annotation>
<documentation>This attribute group includes the XLink attributes (see xlinks.xsd). XLink is used in GML to reference remote resources (including those elsewhere in the same document). A simple link element can be constructed by including a specific set of XLink attributes. The XML Linking Language (XLink) is currently a Proposed Recommendation of the World Wide Web Consortium. XLink allows elements to be inserted into XML documents so as to create sophisticated links between resources; such links can be used to reference remote properties.
A simple link element can be used to implement pointer functionality, and this functionality has been built into various GML 3 elements by including the gml:AssociationAttributeGroup.</documentation>
</annotation>
</attributeGroup>
</complexType>
<!-- ============================================================ -->
<element name="MultiSolid" type="gml:MultiSolidType" substitutionGroup="gml:_GeometricAggregate"/>
<!-- ======================================================= -->
<complexType name="MultiSolidType">
<annotation>
<documentation>A MultiSolid is defined by one or more Solids, referenced through solidMember elements.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGeometricAggregateType">
<sequence>
<annotation>
<documentation>The members of the geometric aggregate can be specified either using the "standard" property or the array property style. It is also valid to use both the "standard" and the array property style in the same collection.
NOTE: Array properties cannot reference remote geometry elements.</documentation>
</annotation>
<element ref="gml:solidMember" minOccurs="0" maxOccurs="unbounded"/>
<element ref="gml:solidMembers" minOccurs="0"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =========================================================== -->
<element name="multiSolidProperty" type="gml:MultiSolidPropertyType">
<annotation>
<appinfo>
<sch:pattern name="Check either href or content not both">
<sch:rule context="gml:multiSolidProperty">
<sch:extends rule="hrefOrContent"/>
</sch:rule>
</sch:pattern>
</appinfo>
<documentation>This property element either references a solid aggregate via the XLink-attributes or contains the "multi solid" element. multiSolidProperty is the predefined property which can be used by GML Application Schemas whenever a GML Feature has a property with a value that is substitutable for MultiSolid.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="MultiSolidPropertyType">
<annotation>
<documentation>A property that has a collection of solids as its value domain can either be an appropriate geometry element encapsulated in an element of this type or an XLink reference to a remote geometry element (where remote includes geometry elements located elsewhere in the same document). Either the reference or the contained element must be given, but neither both nor none.</documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:MultiSolid"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup">
<annotation>
<documentation>This attribute group includes the XLink attributes (see xlinks.xsd). XLink is used in GML to reference remote resources (including those elsewhere in the same document). A simple link element can be constructed by including a specific set of XLink attributes. The XML Linking Language (XLink) is currently a Proposed Recommendation of the World Wide Web Consortium. XLink allows elements to be inserted into XML documents so as to create sophisticated links between resources; such links can be used to reference remote properties.
A simple link element can be used to implement pointer functionality, and this functionality has been built into various GML 3 elements by including the gml:AssociationAttributeGroup.</documentation>
</annotation>
</attributeGroup>
</complexType>
<!-- =========================================================== -->
<!--
The following types and elements are deprecated and should not be used !
For backward compatibility with GML2 only
-->
<!-- =========================================================== -->
<element name="MultiPolygon" type="gml:MultiPolygonType" substitutionGroup="gml:_GeometricAggregate">
<annotation>
<documentation>Deprecated with GML 3.0 and included for backwards compatibility with GML 2. Use the "MultiSurface" element instead.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<element name="MultiLineString" type="gml:MultiLineStringType" substitutionGroup="gml:_GeometricAggregate">
<annotation>
<documentation>Deprecated with GML 3.0 and included for backwards compatibility with GML 2. Use the "MultiCurve" element instead.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
<complexType name="MultiLineStringType">
<annotation>
<documentation>A MultiLineString is defined by one or more LineStrings, referenced through lineStringMember elements. Deprecated with GML version 3.0. Use MultiCurveType instead.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGeometricAggregateType">
<sequence>
<element ref="gml:lineStringMember" minOccurs="0" maxOccurs="unbounded"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =========================================================== -->
<complexType name="MultiLineStringPropertyType">
<annotation>
<documentation>This type is deprecated with GML 3 and shall not be used. It is included for backwards compatibility with GML 2. Use MultiCurvePropertyType instead.
A property that has a collection of line strings as its value domain can either be an appropriate geometry element encapsulated in an element of this type or an XLink reference to a remote geometry element (where remote includes geometry elements located elsewhere in the same document). Either the reference or the contained element must be given, but neither both nor none.</documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:MultiLineString"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup">
<annotation>
<documentation>This attribute group includes the XLink attributes (see xlinks.xsd). XLink is used in GML to reference remote resources (including those elsewhere in the same document). A simple link element can be constructed by including a specific set of XLink attributes. The XML Linking Language (XLink) is currently a Proposed Recommendation of the World Wide Web Consortium. XLink allows elements to be inserted into XML documents so as to create sophisticated links between resources; such links can be used to reference remote properties.
A simple link element can be used to implement pointer functionality, and this functionality has been built into various GML 3 elements by including the gml:AssociationAttributeGroup.</documentation>
</annotation>
</attributeGroup>
</complexType>
<!-- =========================================================== -->
<complexType name="MultiPolygonType">
<annotation>
<documentation>A MultiPolygon is defined by one or more Polygons, referenced through polygonMember elements. Deprecated with GML version 3.0. Use MultiSurfaceType instead.</documentation>
</annotation>
<complexContent>
<extension base="gml:AbstractGeometricAggregateType">
<sequence>
<element ref="gml:polygonMember" minOccurs="0" maxOccurs="unbounded"/>
</sequence>
</extension>
</complexContent>
</complexType>
<!-- =========================================================== -->
<complexType name="MultiPolygonPropertyType">
<annotation>
<documentation>This type is deprecated with GML 3 and shall not be used. It is included for backwards compatibility with GML 2. Use MultiSurfacePropertyType instead.
A property that has a collection of polygons as its value domain can either be an appropriate geometry element encapsulated in an element of this type or an XLink reference to a remote geometry element (where remote includes geometry elements located elsewhere in the same document). Either the reference or the contained element must be given, but neither both nor none.</documentation>
</annotation>
<sequence minOccurs="0">
<element ref="gml:MultiPolygon"/>
</sequence>
<attributeGroup ref="gml:AssociationAttributeGroup">
<annotation>
<documentation>This attribute group includes the XLink attributes (see xlinks.xsd). XLink is used in GML to reference remote resources (including those elsewhere in the same document). A simple link element can be constructed by including a specific set of XLink attributes. The XML Linking Language (XLink) is currently a Proposed Recommendation of the World Wide Web Consortium. XLink allows elements to be inserted into XML documents so as to create sophisticated links between resources; such links can be used to reference remote properties.
A simple link element can be used to implement pointer functionality, and this functionality has been built into various GML 3 elements by including the gml:AssociationAttributeGroup.</documentation>
</annotation>
</attributeGroup>
</complexType>
<!-- =========================================================== -->
<!-- =========================================================== -->
<element name="geometryMember" type="gml:GeometryPropertyType">
<annotation>
<documentation>This property element either references a geometry element via the XLink-attributes or contains the geometry element.</documentation>
</annotation>
</element>
<element name="geometryMembers" type="gml:GeometryArrayPropertyType">
<annotation>
<documentation>This property element contains a list of geometry elements. The order of the elements is significant and shall be preserved when processing the array.</documentation>
</annotation>
</element>
<element name="pointMember" type="gml:PointPropertyType">
<annotation>
<documentation>This property element either references a Point via the XLink-attributes or contains the Point element.</documentation>
</annotation>
</element>
<element name="pointMembers" type="gml:PointArrayPropertyType">
<annotation>
<documentation>This property element contains a list of points. The order of the elements is significant and shall be preserved when processing the array.</documentation>
</annotation>
</element>
<element name="curveMembers" type="gml:CurveArrayPropertyType">
<annotation>
<documentation>This property element contains a list of curves. The order of the elements is significant and shall be preserved when processing the array.</documentation>
</annotation>
</element>
<element name="surfaceMember" type="gml:SurfacePropertyType">
<annotation>
<documentation>This property element either references a surface via the XLink-attributes or contains the surface element. A surface element is any element which is substitutable for "_Surface".</documentation>
</annotation>
</element>
<element name="surfaceMembers" type="gml:SurfaceArrayPropertyType">
<annotation>
<documentation>This property element contains a list of surfaces. The order of the elements is significant and shall be preserved when processing the array.</documentation>
</annotation>
</element>
<element name="solidMember" type="gml:SolidPropertyType">
<annotation>
<documentation>This property element either references a solid via the XLink-attributes or contains the solid element. A solid element is any element which is substitutable for "_Solid".</documentation>
</annotation>
</element>
<element name="solidMembers" type="gml:SolidArrayPropertyType">
<annotation>
<documentation>This property element contains a list of solids. The order of the elements is significant and shall be preserved when processing the array.</documentation>
</annotation>
</element>
<!-- some named geometry properties - for backward compatibility with GML2 -->
<element name="multiCenterOf" type="gml:MultiPointPropertyType"/>
<element name="multiPosition" type="gml:MultiPointPropertyType"/>
<element name="multiCenterLineOf" type="gml:MultiCurvePropertyType"/>
<element name="multiEdgeOf" type="gml:MultiCurvePropertyType"/>
<element name="multiCoverage" type="gml:MultiSurfacePropertyType"/>
<element name="multiExtentOf" type="gml:MultiSurfacePropertyType"/>
<!--
The following types and elements are deprecated and should not be used !
-->
<element name="multiLocation" type="gml:MultiPointPropertyType">
<annotation>
<appinfo>deprecated</appinfo>
<documentation>Deprecated with GML 3.0 and included only for backwards compatibility with GML 2.0. Use "curveMember" instead.
This property element either references a line string via the XLink-attributes or contains the line string element.</documentation>
</annotation>
</element>
<element name="lineStringMember" type="gml:LineStringPropertyType">
<annotation>
<appinfo>deprecated</appinfo>
<documentation>Deprecated with GML 3.0 and included only for backwards compatibility with GML 2.0. Use "curveMember" instead.
This property element either references a line string via the XLink-attributes or contains the line string element.</documentation>
</annotation>
</element>
<element name="polygonMember" type="gml:PolygonPropertyType">
<annotation>
<appinfo>deprecated</appinfo>
<documentation>Deprecated with GML 3.0 and included only for backwards compatibility with GML 2.0. Use "surfaceMember" instead.
This property element either references a polygon via the XLink-attributes or contains the polygon element.</documentation>
</annotation>
</element>
<!-- =========================================================== -->
</schema>
\ No newline at end of file
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