Contour Line - Spatial object type

Definition: Linear spatial object composed of a set of adjoining locations characterized by having the same elevation property value. It describes, together with other contour lines present in the area, the local morphology of the Earth's surface.

Description: NOTE 1 The attribute propertyType is equal to ''height'' in the case of contour lines and it is equal to ''depth'' in the case of depth contours.

INSPIRE Data Theme: Elevation - [INSPIRE Data Theme Elevation]

INSPIRE Application schema: Elevation - Vector Elements - [INSPIRE Application schema Elevation - Vector Elements]

Subtype of: Elevation Vector Object


Attributes

Definition: The type of contour line with regard to the normal contour vertical interval (if any).

Description: NOTE This attribute is often applicable to contour lines describing the relief of a land-based area. For depth contours describing the floor of a water body is not always applicable.

Multiplicity: 1

Stereotypes: voidable

Valuetype: ContourLineTypeValue

Definition: Property indicating that the contour line spatial object is digitized in a way that the height of the elevation surface is lower at the right side of the line.

Description: NOTE 1 In the case of contour lines, when the downRight attribute is 'true' this indicates that the height of the surface is lower at the right side of the line.NOTE 2 In the case of depth contours, when the downRight attribute is 'true' this indicates that the depth of the surface is higher at the right side of the line.

Multiplicity: 1

Stereotypes: voidable

Valuetype: Boolean

Definition: Represents the geometric properties of the spatial object.

Multiplicity: 1

Valuetype: GM_Curve

Definition: Value of the elevation property of the spatial object referred to a specific vertical coordinate reference system.

Multiplicity: 1

Valuetype: DirectPosition

Definition: Date and time at which this version of the spatial object was inserted or changed in the spatial data set.

Multiplicity: 1

Stereotypes: voidable

Valuetype: DateTime

Definition: Date and time at which this version of the spatial object was superseded or retired in the spatial data set.

Multiplicity: 1

Stereotypes: voidable

Valuetype: DateTime

Definition: Identification of a local vertical coordinate reference system not included in a registry, which is used to refer depth measurements.

Description: NOTE This data type is applicable only to bathymetric vector objects.EXAMPLE Local datums for referring depths in lakes and navigable rivers.

Multiplicity: 0...1

Valuetype: ChartDatum

Definition: Attribute categorizing the elevation vector object as a land-elevation or a bathymetry spatial object. It determines the elevation property represented by the object.

Description: EXAMPLE Height, depth.

Multiplicity: 1

Valuetype: ElevationPropertyTypeValue


Constraints

Type OCL

Status Approved

Note /*The dimension of the property value coordinate shall be 1*/inv: propertyValue.dimension=1

Type OCL

Status Approved

Note /*The property value shall be expressed referring to a vertical coordinate reference system*/inv: propertyValue.coordinateReferenceSystem.oclIsKindOf(SC_VerticalCRS)



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