ElevatedCurve


             ElevatedCurve

A one-dimensional geometric primitive, representing the continuous image of a line which is extended with properties that represent the vertical position (elevation, datum, accuracy).

Properties	Definition	Type
elevation	The vertical distance at the curve level, measured from Mean Sea Level (MSL).	(string) ValDistanceVerticalType
geoidUndulation	The distance of the geoid above (positive) or below (negative) the mathematical reference ellipsoid at the location of the curve.	(decimal) ValDistanceSignedType
verticalAccuracy	The difference between the recorded elevation of a curve and its true elevation referenced to the same vertical datum expressed as a linear error at 95 percent probability.	(decimal) ValDistanceType
verticalDatum	The set of reference points or a mathematical model of the Earth's surface (a datum) against which vertical position measurements of a curve, are made as basis for measuring elevations.	(string) CodeVerticalDatumType

Details

ElevatedCurve


              ElevatedCurve

A one-dimensional geometric primitive, representing the continuous image of a line which is extended with properties that represent the vertical position (elevation, datum, accuracy).

Semantic Correspondence

AIRM Concept	Definition
ThreeDimensionalCurveType	Derived from GM_Curve and extended to include properties that represent the vertical position (elevation, datum, accuracy).

elevation


              ElevatedCurve.elevation

The vertical distance at the curve level, measured from Mean Sea Level (MSL).

Semantic Correspondence

AIRM Concept	Definition
ThreeDimensionalCurveType.elevation	The vertical distance of a point or a level, on or affixed to the surface of the earth, measured from mean sea level.

geoidUndulation


              ElevatedCurve.geoidUndulation

The distance of the geoid above (positive) or below (negative) the mathematical reference ellipsoid at the location of the curve.

Semantic Correspondence

AIRM Concept	Definition
ThreeDimensionalCurveType.geoidUndulation	The distance of the geoid above (positive) or below (negative) the mathematical reference ellipsoid at the location of the curve.

verticalAccuracy


              ElevatedCurve.verticalAccuracy

The difference between the recorded elevation of a curve and its true elevation referenced to the same vertical datum expressed as a linear error at 95 percent probability.

Semantic Correspondence

AIRM Concept	Definition
ThreeDimensionalCurveType.verticalAccuracy	The difference between the recorded elevation of an entity and its true elevation referenced to the same vertical datum expressed as a linear error at 95 percent probability.

verticalDatum


              ElevatedCurve.verticalDatum

The set of reference points or a mathematical model of the Earth's surface (a datum) against which vertical position measurements of a curve, are made as basis for measuring elevations.

Semantic Correspondence

AIRM Concept	Definition
ThreeDimensionalCurveType.verticalDatum	The set of reference points or a mathematical model of the Earth's surface (a datum) against which vertical position measurements are made as basis for measuring elevations.