gml:valueComponent

valueObjects.xsd

Element which refers to, or contains, a Value.  This version is used in CompositeValues.

Element information

Content

from group gml:Value
Choice [1..1]
from group gml:ValueObject
from group gml:ScalarValue
gml:Boolean [0..1]    A value from two-valued logic, using the XML Schema boolean type. An instance may take the values {true, false, 1, 0}.
gml:Category [0..1]    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 [0..1]    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 [0..1]    An integer representing a frequency of occurrence.
from group gml:ScalarValueList
gml:BooleanList [0..1]    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 [0..1]    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 [0..1]    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 [0..1]    A space-separated list of integers or nulls.
from group gml:ValueExtent
gml:CategoryExtent [0..1]    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 [0..1]    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 [0..1]    Utility element to store a 2-point range of frequency values. If one member is a null, then this is a single ended interval.
from subst. group gml:CompositeValue
gml:CompositeValue [0..1]    Aggregate value built using the Composite pattern.
gml:ValueArray [0..1]    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
from subst. group gml:_GML
gml:Definition [0..1]    
from subst. group gml:Definition
gmx:CodeDefinition [0..1]    
from subst. group gmx:CodeDefinition
gmx:ML_CodeDefinition [0..1]    
gml:Dictionary [0..1]    
from subst. group gml:Dictionary
gmx:CodeListDictionary [0..1]    
from subst. group gmx:CodeListDictionary
gmx:ML_CodeListDictionary [0..1]    
gml:DefinitionCollection [0..1]    
gml:CoordinateSystemAxis [0..1]    
from subst. group gml:CoordinateSystemAxis
gmx:ML_CoordinateSystemAxis [0..1]    
from subst. group gml:_CoordinateSystem
gml:EllipsoidalCS [0..1]    
from subst. group gml:EllipsoidalCS
gmx:ML_EllipsoidalCS [0..1]    
gml:CartesianCS [0..1]    
from subst. group gml:CartesianCS
gmx:ML_CartesianCS [0..1]    
gml:VerticalCS [0..1]    
from subst. group gml:VerticalCS
gmx:ML_VerticalCS [0..1]    
gml:TemporalCS [0..1]    
from subst. group gml:TemporalCS
gmx:ML_TimeCS [0..1]    
gml:LinearCS [0..1]    
from subst. group gml:LinearCS
gmx:ML_LinearCS [0..1]    
gml:UserDefinedCS [0..1]    
from subst. group gml:UserDefinedCS
gmx:ML_UserDefinedCS [0..1]    
gml:SphericalCS [0..1]    
from subst. group gml:SphericalCS
gmx:ML_SphericalCS [0..1]    
gml:PolarCS [0..1]    
from subst. group gml:PolarCS
gmx:ML_PolarCS [0..1]    
gml:CylindricalCS [0..1]    
from subst. group gml:CylindricalCS
gmx:ML_CylindricalCS [0..1]    
gml:ObliqueCartesianCS [0..1]    
from subst. group gml:_CoordinateOperation
gml:ConcatenatedOperation [0..1]    
from subst. group gml:ConcatenatedOperation
gmx:ML_ConcatenatedOperation [0..1]    
from subst. group gml:_SingleOperation
gml:PassThroughOperation [0..1]    
from subst. group gml:PassThroughOperation
gmx:ML_PassThroughOperation [0..1]    
from subst. group gml:_GeneralConversion
gml:Conversion [0..1]    
from subst. group gml:Conversion
gmx:ML_Conversion [0..1]    
from subst. group gml:_GeneralTransformation
gml:Transformation [0..1]    
from subst. group gml:Transformation
gmx:ML_Transformation [0..1]    
gml:OperationMethod [0..1]    
from subst. group gml:OperationMethod
gmx:ML_OperationMethod [0..1]    
from subst. group gml:_GeneralOperationParameter
gml:OperationParameter [0..1]    
from subst. group gml:OperationParameter
gmx:ML_OperationParameter [0..1]    
gml:OperationParameterGroup [0..1]    
from subst. group gml:OperationParameterGroup
gmx:ML_OperationParameterGroup [0..1]    
from subst. group gml:_Datum
gml:EngineeringDatum [0..1]    
from subst. group gml:EngineeringDatum
gmx:ML_EngineeringDatum [0..1]    
gml:ImageDatum [0..1]    
from subst. group gml:ImageDatum
gmx:ML_ImageDatum [0..1]    
gml:VerticalDatum [0..1]    
from subst. group gml:VerticalDatum
gmx:ML_VerticalDatum [0..1]    
gml:TemporalDatum [0..1]    
from subst. group gml:TemporalDatum
gmx:ML_TemporalDatum [0..1]    
gml:GeodeticDatum [0..1]    
from subst. group gml:GeodeticDatum
gmx:ML_GeodeticDatum [0..1]    
gml:PrimeMeridian [0..1]    
from subst. group gml:PrimeMeridian
gmx:ML_PrimeMeridian [0..1]    
gml:Ellipsoid [0..1]    
from subst. group gml:Ellipsoid
gmx:ML_Ellipsoid [0..1]    
from subst. group gml:_CRS
from subst. group gml:_CoordinateReferenceSystem
gml:GeographicCRS [0..1]    
from subst. group gml:GeographicCRS
gmx:ML_GeographicCRS [0..1]    
gml:VerticalCRS [0..1]    
from subst. group gml:VerticalCRS
gmx:ML_VerticalCRS [0..1]    
gml:GeocentricCRS [0..1]    
from subst. group gml:GeocentricCRS
gmx:ML_GeocentricCRS [0..1]    
from subst. group gml:_GeneralDerivedCRS
gml:ProjectedCRS [0..1]    
from subst. group gml:ProjectedCRS
gmx:ML_ProjectedCRS [0..1]    
gml:DerivedCRS [0..1]    
from subst. group gml:DerivedCRS
gmx:ML_DerivedCRS [0..1]    
gml:EngineeringCRS [0..1]    
from subst. group gml:EngineeringCRS
gmx:ML_EngineeringCRS [0..1]    
gml:ImageCRS [0..1]    
from subst. group gml:ImageCRS
gmx:ML_ImageCRS [0..1]    
gml:TemporalCRS [0..1]    
from subst. group gml:TemporalCRS
gmx:ML_TemporalCRS [0..1]    
gml:CompoundCRS [0..1]    
from subst. group gml:CompoundCRS
gmx:ML_CompoundCRS [0..1]    
gml:UnitDefinition [0..1]    
from subst. group gml:UnitDefinition
gmx:ML_UnitDefinition [0..1]    
gml:BaseUnit [0..1]    
from subst. group gml:BaseUnit
gmx:ML_BaseUnit [0..1]    
gml:DerivedUnit [0..1]    
from subst. group gml:DerivedUnit
gmx:ML_DerivedUnit [0..1]    
gml:ConventionalUnit [0..1]    
from subst. group gml:ConventionalUnit
gmx:ML_ConventionalUnit [0..1]    
from subst. group om:ProcedureSystem
om:ProcedureSequence [0..1]    
om:ProcedurePackage [0..1]    
om:ObservationProcedure [0..1]    Procedures may be listed in a Dictionary (i.e. lightweight registry)
from subst. group om:ObservationProcedure
om:Instrument [0..1]    
om:CalculationProcedure [0..1]    
swe:Phenomenon [0..1]    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.
from subst. group swe:Phenomenon
swe:ConstrainedPhenomenon [0..1]    Description of a scalar Phenomenon defined by adding constraints to a property previously defined elsewhere.
from subst. group swe:CompoundPhenomenon
swe:CompositePhenomenon [0..1]    A Composite Phenomenon Definition is composed from arbitrary base Phenomena.
swe:PhenomenonSeries [0..1]    A Series is derived from a common basePhenomenon (e.g. Chemical Concentration) with one or more constraint lists (e.g. Chemical Species).
from subst. group swe:RecordType
swe:ItemDefinition [0..1]    Description of a scalar property with its representation and scale and (optional) quality indicators
from subst. group swe:ItemDefinition
swe:ItemSeriesDefinition [0..1]    Description of a series of scalar properties with a common representation and scale and (optional) quality indicators.
swe:RecordDefinition [0..1]    A Record Definition is composed from arbitrary base axes, which may be records.
from subst. group gml:_GeometricPrimitive
gml:Point [0..1]    
from subst. group gml:_Curve
gml:LineString [0..1]    
from subst. group gml:_Surface
gml:Polygon [0..1]    
from subst. group gml:_Ring
gml:LinearRing [0..1]    
from subst. group gml:_GeometricAggregate
gml:MultiGeometry [0..1]    
gml:MultiPoint [0..1]    
gml:MultiCurve [0..1]    
gml:MultiSurface [0..1]    
xls:MultiPolygon [0..1]    
from subst. group gml:_ImplicitGeometry
gml:Grid [0..1]    
gml:RectifiedGrid [0..1]    Should be substitutionGroup="gml:Grid" but changed in order to accomplish Xerces-J schema validation
from subst. group gml:_Feature
mo:MovingObject [0..1]    
from subst. group gml:_FeatureCollection
mo:MovingObjectCollection [0..1]    
wfs:FeatureCollection [0..1]     This element is a container for the response to a GetFeature or GetFeatureWithLock (WFS-transaction.xsd) request.
gml:FeatureCollection [0..1]    
from subst. group gml:_DiscreteCoverage
gml:MultiPointCoverage [0..1]    
gml:MultiCurveCoverage [0..1]    
gml:MultiSurfaceCoverage [0..1]    
gml:GridCoverage [0..1]    
gml:RectifiedGridCoverage [0..1]    
om:Event [0..1]    
from subst. group om:Event
from subst. group om:AbstractObservation
om:CommonObservation [0..1]    Observation event
om:Observation [0..1]    Generic Observation event
om:Measurement [0..1]    Measurement event
om:CategoryObservation [0..1]    Observation, in which the result is a textual value from a controlled vocabulary
om:CountObservation [0..1]    Observation, in which the result is an integer representing the count of the observed property
om:TruthObservation [0..1]    Observation, in which the result is a boolean value representing the truth value (usually existence) of the observed property
om:ComplexObservation [0..1]    Observation, in which the result is a record representing a multi-component phenomenon
om:DiscreteCoverageObservation [0..1]    Observation, in which the result is a generalized discrete coverage
om:PointCoverageObservation [0..1]    Observation, in which the result is a point coverage which samples a property at points in the feature of interest
om:TimeSeriesObservation [0..1]    Observation, in which the result is a time-instant coverage which samples a property of the feature of interest at different times
om:ElementCoverageObservation [0..1]    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 [0..1]    Observation event
om:PointCoverageObs [0..1]    Observation event
om:TimeSeriesObs [0..1]    Observation event
om:ObservationCollection [0..1]    Observation collection, using the "Composite" pattern
om:ProcedureEvent [0..1]    Description of an event involving a procedure.
from subst. group om:ProcedureEvent
om:ProcedureHistory [0..1]    
from subst. group gml:_TimeObject
from subst. group gml:_TimeComplex
swe:TimeGeometricComplex [0..1]    a self-consistent set of TimeInstants and TimePeriods
from subst. group swe:TimeGrid
swe:TimeInstantGrid [0..1]    A set of uniformly spaced time instants described using an implicit notation
swe:TimeIntervalGrid [0..1]    A set of uniformly spaced time intervals described using an implicit notation
from subst. group gml:_TimeGeometricPrimitive
gml:TimeInstant [0..1]    
gml:TimePeriod [0..1]    
swe:TimeAggregate [0..1]    a set of TimeObjects, often TimeInstants and TimePeriods
from subst. group gml:_TimeSlice
mo:MovingObjectStatus [0..1]    
• gml:Null [0..1]    

Attributes

Used in

• Type gml:CompositeValueType (Element gml:CompositeValue)
• Type gml:ValueArrayType via extension of gml:CompositeValueType (Element gml:ValueArray)

Sample instance

<gml:valueComponent>
   <gml:Boolean>true</gml:Boolean>
</gml:valueComponent>