Class <<FeatureType>> MappedFeature

A MappedFeature provides a link between a notional feature (description package) and one spatial representation of it, or part of it. (Exposures, Surface Traces and Intercepts, etc)
* the specific bounded occurrence, such as an outcrop or map polygon
* the Mapped Feature carries a geometry or shape
o the association with a Geologic Feature (legend item) provides specification of all the other descriptors
o the association with a Sampling Feature provides the context and dimensionality

A Mapped Feature is always associated with some sampling feature - e.g. a mapping surface, a section, a Borehole (see BoreHolesAndObservation) etc. As noted on the diagram, if the associated sampling feature is a Borehole, then the shape associated with the MappedFeature will usually be either a point or an interval. This reconciles the 2-D ("map", section) and 1-D (borehole, traverse) viewpoints in a common abstraction.

Local Subclasses:

Attributes

Name Type Bounds From Class Notes
observationMethod CGI_TermValue 1..* MappedFeature Specifies the method that was used to identify the MappedFeature. Examples: digitised, Global Positioning System, published map, fieldObservation, downhole survey, aerial photography, field survey. This corresponds (loosely) to ISO19115 Lineage.Statement
Attribute tagged values
Tag Value
sequenceNumber 2
positionalAccuracy CGI_Value 1..1 MappedFeature Examples: accurate, approximate, diagramatic, indefinite, unknown, 5 m. Corresponds to ISO19115 DQ_ThematicAccuracy (either quantitative or non quantitative).result.value
Attribute tagged values
Tag Value
sequenceNumber 3
 

Outbound Associations

Name Type Multiplicity From Class Notes
metadata MD_Metadata 0..1 MappedFeature
Association tagged values
Tag Value
inlineOrByReference byReference
samplingFrame SpatiallyExtensiveSamplingFeature MappedFeature Specifies the sampling frame associated with the MappedFeature
specification GeologicFeature 1 MappedFeature Point to the single geologic feature which describes the mapped feature.
Association tagged values
Tag Value
inlineOrByReference byReference
sequenceNumber 5
shape GM_Object MappedFeature Points to the GML shape object that describes the geometry of the MappedFeature.
 

Constraints

Constraint Type Status Weight
self.metadata.hierarchyLevel=(feature or dataset or series) Invariant Approved 0.00
self.shape contained in samplingFrame.shape Invariant Approved 1.00
 

Tagged values

Tag Value Notes
byValuePropertyType false Values: true,false
Default: false
Description: enforce the 'by value' property pattern without xl
hasXmlLang false Values: true | false
Default: false
Description: axml attribute xml:lang shall be generated for the type representing the class
isCollection false Values: true,false
Default: false
Description: attribute group gml:AggregationAttributeGroup is a
noPropertyType false Values: true,false
Default: false
Description: suppress automatic creation of *PropertyType compl
 

GML-conformant XML Implementation Details

<xs:element xmlns:xs="http://www.w3.org/2001/XMLSchema" name="MappedFeature" substitutionGroup="gml:_Feature" type="gsml:MappedFeatureType">
    <xs:annotation>
        <xs:documentation>A MappedFeature provides a link between a notional feature (description package) and one spatial representation of it, or part of it. (Exposures, Surface Traces and Intercepts, etc)
    * the specific bounded occurrence, such as an outcrop or map polygon
    * the Mapped Feature carries a geometry or shape
          o the association with a Geologic Feature (legend item) provides specification of all the other descriptors
          o the association with a Sampling Feature provides the context and dimensionality 

A Mapped Feature is always associated with some sampling feature - e.g. a mapping surface, a section, a Borehole (see BoreHolesAndObservation) etc.  As noted on the diagram, if the associated sampling feature is a Borehole, then the shape associated with the MappedFeature will usually be either a point or an interval. This reconciles the 2-D ("map", section) and 1-D (borehole, traverse) viewpoints in a common abstraction.</xs:documentation>
    </xs:annotation>
</xs:element>
<xs:complexType xmlns:xs="http://www.w3.org/2001/XMLSchema" name="MappedFeatureType">
    <xs:complexContent>
        <xs:extension base="gml:AbstractFeatureType">
            <xs:sequence>
                <xs:element maxOccurs="unbounded" minOccurs="1" name="observationMethod" type="gsml:CGI_TermValuePropertyType">
                    <xs:annotation>
                        <xs:documentation>Specifies the method that was used to identify the MappedFeature. Examples: digitised,  Global Positioning System, published map, fieldObservation, downhole survey, aerial photography, field survey. This corresponds (loosely) to ISO19115 Lineage.Statement</xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element name="positionalAccuracy" type="gsml:CGI_ValuePropertyType">
                    <xs:annotation>
                        <xs:documentation>Examples: accurate, approximate, diagramatic, indefinite, unknown, 5 m. Corresponds to ISO19115 DQ_ThematicAccuracy (either quantitative or non quantitative).result.value</xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element maxOccurs="1" minOccurs="0" name="metadata" type="gml:ReferenceType"/>
                <xs:element name="samplingFrame" type="sa:SpatiallyExtensiveSamplingFeaturePropertyType"/>
                <xs:element name="specification" type="gsml:GeologicFeaturePropertyType"/>
                <xs:element name="shape" type="gml:GeometryPropertyType"/>
            </xs:sequence>
        </xs:extension>
    </xs:complexContent>
</xs:complexType>
<xs:complexType xmlns:xs="http://www.w3.org/2001/XMLSchema" name="MappedFeaturePropertyType">
    <xs:sequence minOccurs="0">
        <xs:element ref="gsml:MappedFeature"/>
    </xs:sequence>
    <xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>