gml:Value
valueObjects.xsd
Utility choice group which unifies generic Values defined in this schema document with Geometry and Temporal objects and the Measures described above, so that any of these may be used within aggregate Values.
Group information
Namespace: http://niem.gov/niem/external/ogc-gml/3.1.1/dhs-gmo/1.0.0
Schema document: external/ogc-gml/3.1.1/dhs-gmo/1.0.0/gml.xsd
Content
- Choice [1..1]
- gml:Boolean A value from two-valued logic, using the XML Schema boolean type. An instance may take the values {true, false, 1, 0}.
- gml:Category A term representing a classification. It has an optional XML attribute codeSpace, whose value is a URI which identifies a dictionary, codelist or authority for the term.
- gml:Quantity A numeric value with a scale. The content of the element is an amount using the XML Schema type double which permits decimal or scientific notation. An XML attribute uom (unit of measure) is required, whose value is a URI which identifies the definition of the scale or units by which the numeric value must be multiplied.
- gml:Count An integer representing a frequency of occurrence.
- gml:BooleanList 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}
- gml:CategoryList A space-separated list of terms or nulls. A single XML attribute codeSpace may be provided, which authorises all the terms in the list.
- gml:QuantityList A space separated list of amounts or nulls. The amounts use the XML Schema type double. A single XML attribute uom (unit of measure) is required, whose value is a URI which identifies the definition of the scale or units by which all the amounts in the list must be multiplied.
- gml:CountList A space-separated list of integers or nulls.
- gml:CategoryExtent Utility element to store a 2-point range of ordinal values. If one member is a null, then this is a single ended interval.
- gml:QuantityExtent Utility element to store a 2-point range of numeric values. If one member is a null, then this is a single ended interval.
- gml:CountExtent Utility element to store a 2-point range of frequency values. If one member is a null, then this is a single ended interval.
- gml:CompositeValue Aggregate value built using the Composite pattern.
- gml:ValueArray A Value Array is used for homogeneous arrays of primitive and aggregate values. _ScalarValueList is preferred for arrays of Scalar Values since this is more efficient. Since "choice" is not available for attribute groups, an external constraint (e.g. Schematron) would be required to enforce the selection of only one of these through schema validation
- gml:Definition
- gmx:CodeDefinition
- gml:Dictionary
- gmx:CodeListDictionary
- gml:DefinitionCollection
- gml:CoordinateSystemAxis
- gml:EllipsoidalCS
- gml:CartesianCS
- gml:VerticalCS
- gml:TemporalCS
- gml:LinearCS
- gml:UserDefinedCS
- gml:SphericalCS
- gml:PolarCS
- gml:CylindricalCS
- gml:ObliqueCartesianCS
- gml:ConcatenatedOperation
- gml:PassThroughOperation
- gml:Conversion
- gml:Transformation
- gml:OperationMethod
- gml:OperationParameter
- gml:OperationParameterGroup
- gml:EngineeringDatum
- gml:ImageDatum
- gml:VerticalDatum
- gml:TemporalDatum
- gml:GeodeticDatum
- gml:PrimeMeridian
- gml:Ellipsoid
- gml:GeographicCRS
- gml:VerticalCRS
- gml:GeocentricCRS
- gml:EngineeringCRS
- gml:ImageCRS
- gml:TemporalCRS
- gml:CompoundCRS
- gml:UnitDefinition
- gmx:ML_UnitDefinition
- gml:BaseUnit
- gml:DerivedUnit
- gml:ConventionalUnit
- om:ProcedureSequence
- om:ProcedurePackage
- om:ObservationProcedure Procedures may be listed in a Dictionary (i.e. lightweight registry)
- om:CalculationProcedure
- swe:Phenomenon Use the generic gml:DefinitionType for basic Phenomenon definitions, gml:description may be used for a more extensive description of the semantics, with a link to a definitive version (if available). gml:name should be used for the "short name" or label.
- swe:ConstrainedPhenomenon Description of a scalar Phenomenon defined by adding constraints to a property previously defined elsewhere.
- swe:CompositePhenomenon A Composite Phenomenon Definition is composed from arbitrary base Phenomena.
- swe:PhenomenonSeries A Series is derived from a common basePhenomenon (e.g. Chemical Concentration) with one or more constraint lists (e.g. Chemical Species).
- swe:ItemDefinition Description of a scalar property with its representation and scale and (optional) quality indicators
- swe:ItemSeriesDefinition Description of a series of scalar properties with a common representation and scale and (optional) quality indicators.
- swe:RecordDefinition A Record Definition is composed from arbitrary base axes, which may be records.
- gml:Grid
- gml:RectifiedGrid Should be substitutionGroup="gml:Grid" but changed in order to accomplish Xerces-J schema validation
- mo:MovingObject
- mo:MovingObjectCollection
- wfs:FeatureCollection This element is a container for the response to a GetFeature or GetFeatureWithLock (WFS-transaction.xsd) request.
- gml:FeatureCollection
- om:Event
- om:CommonObservation Observation event
- om:Observation Generic Observation event
- om:Measurement Measurement event
- om:CategoryObservation Observation, in which the result is a textual value from a controlled vocabulary
- om:CountObservation Observation, in which the result is an integer representing the count of the observed property
- om:TruthObservation Observation, in which the result is a boolean value representing the truth value (usually existence) of the observed property
- om:ComplexObservation Observation, in which the result is a record representing a multi-component phenomenon
- om:DiscreteCoverageObservation Observation, in which the result is a generalized discrete coverage
- om:PointCoverageObservation Observation, in which the result is a point coverage which samples a property at points in the feature of interest
- om:TimeSeriesObservation Observation, in which the result is a time-instant coverage which samples a property of the feature of interest at different times
- om:ElementCoverageObservation Observation, in which the result is a coverage whose domain elements contain references to objects encoded elsewhere, sampling the feature of interest in some way
- om:DiscreteCoverageObs Observation event
- om:PointCoverageObs Observation event
- om:TimeSeriesObs Observation event
- om:ObservationCollection Observation collection, using the "Composite" pattern
- om:ProcedureEvent Description of an event involving a procedure.
- swe:TimeGeometricComplex a self-consistent set of TimeInstants and TimePeriods
- swe:TimeInstantGrid A set of uniformly spaced time instants described using an implicit notation
- swe:TimeIntervalGrid A set of uniformly spaced time intervals described using an implicit notation
- swe:TimeAggregate a set of TimeObjects, often TimeInstants and TimePeriods
- gml:Null
from group gml:ValueObjectfrom group gml:ScalarValuefrom group gml:ScalarValueListfrom group gml:ValueExtentfrom subst. group gml:CompositeValuefrom subst. group gml:_GMLfrom subst. group gml:Definitionfrom subst. group gmx:CodeDefinitionfrom subst. group gml:Dictionaryfrom subst. group gmx:CodeListDictionaryfrom subst. group gml:CoordinateSystemAxisfrom subst. group gml:_CoordinateSystemfrom subst. group gml:EllipsoidalCSfrom subst. group gml:CartesianCSfrom subst. group gml:VerticalCSfrom subst. group gml:TemporalCSfrom subst. group gml:LinearCSfrom subst. group gml:UserDefinedCSfrom subst. group gml:SphericalCSfrom subst. group gml:PolarCSfrom subst. group gml:CylindricalCSfrom subst. group gml:_CoordinateOperationfrom subst. group gml:ConcatenatedOperationfrom subst. group gml:_SingleOperationfrom subst. group gml:PassThroughOperationfrom subst. group gml:_GeneralConversionfrom subst. group gml:Conversionfrom subst. group gml:_GeneralTransformationfrom subst. group gml:Transformationfrom subst. group gml:OperationMethodfrom subst. group gml:_GeneralOperationParameterfrom subst. group gml:OperationParameterfrom subst. group gml:OperationParameterGroupfrom subst. group gml:_Datumfrom subst. group gml:EngineeringDatumfrom subst. group gml:ImageDatumfrom subst. group gml:VerticalDatumfrom subst. group gml:TemporalDatumfrom subst. group gml:GeodeticDatumfrom subst. group gml:PrimeMeridianfrom subst. group gml:Ellipsoidfrom subst. group gml:_CRSfrom subst. group gml:_CoordinateReferenceSystemfrom subst. group gml:GeographicCRSfrom subst. group gml:VerticalCRSfrom subst. group gml:GeocentricCRSfrom subst. group gml:_GeneralDerivedCRSfrom subst. group gml:EngineeringCRSfrom subst. group gml:ImageCRSfrom subst. group gml:TemporalCRSfrom subst. group gml:CompoundCRSfrom subst. group gml:UnitDefinitionfrom subst. group gml:BaseUnitfrom subst. group gml:DerivedUnitfrom subst. group gml:ConventionalUnitfrom subst. group om:ProcedureSystemfrom subst. group om:ObservationProcedurefrom subst. group swe:Phenomenonfrom subst. group swe:CompoundPhenomenonfrom subst. group swe:RecordTypefrom subst. group swe:ItemDefinitionfrom subst. group gml:_GeometricPrimitivefrom subst. group gml:_Ringfrom subst. group gml:_GeometricAggregatefrom subst. group gml:_ImplicitGeometryfrom subst. group gml:_Featurefrom subst. group gml:_FeatureCollectionfrom subst. group gml:_DiscreteCoveragefrom subst. group om:Eventfrom subst. group om:AbstractObservationfrom subst. group om:ProcedureEventfrom subst. group gml:_TimeObjectfrom subst. group gml:_TimeComplexfrom subst. group swe:TimeGridfrom subst. group gml:_TimeGeometricPrimitivefrom subst. group gml:_TimeSlice
Used in
- Type gml:ValueArrayPropertyType (Element gml:valueComponents)
- Type gml:ValuePropertyType (Elements gml:valueProperty, gml:valueComponent)