view release on metacpan or  search on metacpan

lib/Geo/GML/xsd/gml-3.1.0/base/units.xsd  view on Meta::CPAN

			<documentation>Reference to a unit of measure definition that applies to all the numerical values described by the element containing this element. Notice that a complexType which needs to include the uom attribute can do so by extending this comp...
		</annotation>
		<sequence/>
		<attribute name="uom" type="anyURI" use="required">
			<annotation>
				<documentation>Reference to a unit of measure definition, usually within the same XML document but possibly outside the XML document which contains this reference. For a reference within the same XML document, the "#" symbol should be used, follo...
			</annotation>
		</attribute>
	</complexType>
	<!-- =========================================================== -->
	<element name="UnitDefinition" type="gml:UnitDefinitionType" substitutionGroup="gml:Definition"/>
	<!-- =========================================================== -->
	<complexType name="UnitDefinitionType">
		<annotation>
			<documentation>Definition of a unit of measure (or uom). The definition includes a quantityType property, which indicates the phenomenon to which the units apply, and a catalogSymbol, which gives the short symbol used for this unit. This element i...
		</annotation>
		<complexContent>
			<extension base="gml:DefinitionType">
				<sequence>
					<element ref="gml:quantityType"/>
					<element ref="gml:catalogSymbol" minOccurs="0"/>
				</sequence>
			</extension>
		</complexContent>
	</complexType>
	<!-- =========================================================== -->
	<element name="BaseUnit" type="gml:BaseUnitType" substitutionGroup="gml:UnitDefinition"/>
	<!-- =========================================================== -->
	<complexType name="BaseUnitType">
		<annotation>
			<documentation>Definition of a unit of measure which is a base unit from the system of units.  A base unit cannot be derived by combination of other base units within this system.  Sometimes known as "fundamental unit".  </documentation>
		</annotation>
		<complexContent>
			<extension base="gml:UnitDefinitionType">
				<sequence>
					<element name="unitsSystem" type="gml:ReferenceType"/>
				</sequence>
			</extension>
		</complexContent>
	</complexType>
	<!-- =========================================================== -->
	<element name="DerivedUnit" type="gml:DerivedUnitType" substitutionGroup="gml:UnitDefinition"/>
	<!-- ============================================================ -->
	<complexType name="DerivedUnitType">
		<annotation>
			<documentation>Definition of a unit of measure which is defined through algebraic combination of more primitive units, which are usually base units from a particular system of units. Derived units based directly on base units are usually preferred...
		</annotation>
		<complexContent>
			<extension base="gml:UnitDefinitionType">
				<sequence>
					<element ref="gml:derivationUnitTerm" maxOccurs="unbounded"/>
				</sequence>
			</extension>
		</complexContent>
	</complexType>
	<!-- =========================================================== -->
	<element name="ConventionalUnit" type="gml:ConventionalUnitType" substitutionGroup="gml:UnitDefinition"/>
	<!-- =========================================================== -->
	<complexType name="ConventionalUnitType">
		<annotation>
			<documentation>Definition of a unit of measure which is related to a preferred unit for this quantity type through a conversion formula.  A method for deriving this unit by algebraic combination of more primitive units, may also be provided.  </do...
		</annotation>
		<complexContent>
			<extension base="gml:UnitDefinitionType">
				<sequence>
					<choice>
						<element ref="gml:conversionToPreferredUnit"/>
						<element ref="gml:roughConversionToPreferredUnit"/>
					</choice>
					<element ref="gml:derivationUnitTerm" minOccurs="0" maxOccurs="unbounded"/>
				</sequence>
			</extension>
		</complexContent>
	</complexType>
	<!-- =========================================================== -->
	<element name="quantityType" type="gml:StringOrRefType">
		<annotation>
			<documentation>Informal description of the phenomenon or type of quantity that is measured or observed. For example, "length", "angle", "time", "pressure", or "temperature". When the quantity is the result of an observation or measurement, this te...
		</annotation>
	</element>
	<!-- =========================================================== -->
	<element name="catalogSymbol" type="gml:CodeType">
		<annotation>
			<documentation>For global understanding of a unit of measure, it is often possible to reference an item in a catalog of units, using a symbol in that catalog. The "codeSpace" attribute in "CodeType" identifies a namespace for the catalog symbol va...
		</annotation>
	</element>
	<!-- =========================================================== -->
	<element name="derivationUnitTerm" type="gml:DerivationUnitTermType"/>
	<!-- =========================================================== -->
	<complexType name="DerivationUnitTermType">
		<annotation>
			<documentation>Definition of one unit term for a derived unit of measure. This unit term references another unit of measure (uom) and provides an integer exponent applied to that unit in defining the compound unit. The exponent can be positive or ...
		</annotation>
		<complexContent>
			<extension base="gml:UnitOfMeasureType">
				<attribute name="exponent" type="integer"/>
			</extension>
		</complexContent>
	</complexType>
	<!-- =========================================================== -->
	<element name="conversionToPreferredUnit" type="gml:ConversionToPreferredUnitType">
		<annotation>
			<documentation>This element is included when this unit has an accurate conversion to the preferred unit for this quantity type. </documentation>
		</annotation>
	</element>
	<!-- =========================================================== -->
	<element name="roughConversionToPreferredUnit" type="gml:ConversionToPreferredUnitType">
		<annotation>
			<documentation>This element is included when the correct definition of this unit is unknown, but this unit has a rough or inaccurate conversion to the preferred unit for this quantity type. </documentation>
		</annotation>
	</element>
	<!-- =========================================================== -->
	<complexType name="ConversionToPreferredUnitType">
		<annotation>
			<documentation>Relation of a unit to the preferred unit for this quantity type, specified by an arithmetic conversion (scaling and/or offset). A preferred unit is either a base unit or a derived unit selected for all units of one quantity type. Th...
		</annotation>
		<complexContent>
			<extension base="gml:UnitOfMeasureType">
				<choice>
					<element name="factor" type="double">
						<annotation>
							<documentation>Specification of the scale factor by which a value using this unit of measure can be multiplied to obtain the corresponding value using the preferred unit of measure. </documentation>
						</annotation>
					</element>
					<element name="formula" type="gml:FormulaType">
						<annotation>
							<documentation>Specification of the formula by which a value using this unit of measure can be converted to obtain the corresponding value using the preferred unit of measure. </documentation>
						</annotation>
					</element>
				</choice>
			</extension>
		</complexContent>
	</complexType>
	<!-- =========================================================== -->
	<complexType name="FormulaType">
		<annotation>
			<documentation>Paremeters of a simple formula by which a value using this unit of measure can be converted to the corresponding value using the preferred unit of measure. The formula element contains elements a, b, c and d, whose values use the XM...
		</annotation>
		<sequence>
			<element name="a" type="double" minOccurs="0"/>
			<element name="b" type="double"/>
			<element name="c" type="double"/>
			<element name="d" type="double" minOccurs="0"/>
		</sequence>
	</complexType>
	<!-- =========================================================== -->
</schema>