Global Positioning - 9 OPC UA DataTypes

This structure represents a geographic coordinate. The structure is defined in Table 21.

Table 21 – 3DGeographicCoordinateDataType Structure

Name	Type	Description	Optional
3DGeographicCoordinateDataType	structure
Longitude	0:Double	MUST be interpreted according to the CoordinateReferenceSystem	False
Latitude	0:Double	MUST be interpreted according to the CoordinateReferenceSystem	False
Elevation	0:Double	MUST be interpreted according to the ElevationReference. If floor, the height relative to specific floor in meter	True

Its representation in the AddressSpace is defined in Table 22.

Table 22 – 3DGeographicCoordinateDataType definition

Attribute		Value
BrowseName		3DGeographicCoordinateDataType
IsAbstract		False
Description		Represents a geographic coordinate
References	NodeClass		BrowseName	DataType	TypeDefinition	Other
Subtype of 0:Structure
Conformance Units
GPOS GlobalPosition

9.2 GlobalPositionDataType

This structure represents a global position. It is a subtype of the 3DGeographicCoordinateDataType inheriting the fields Longitude, Latitude , and the optional Elevation. The structure is defined in Table 23.

Table 23 – GlobalPositionDataType Structure

Name	Type	Description	Optional
GlobalPositionDataType	structure
Accuracy	0:Double	The horizontal accuracy of the position in meters.	True
Floor	0:Float	A logical and non-localized representation for a building floor. Floor 0 represents the floor designated as 'ground'. Negative numbers indicate floors below the ground floor and positive numbers indicate floors above the ground floor. When implemented, the floor value MUST match described logical numbering scheme, which can be different from any numbering used within a building. Values can be expressed as an integer value, or as a float as required for mezzanine floor levels.	True

Its representation in the AddressSpace is defined in Table 24.

Table 24 – GlobalPositionDataType definition

Attribute		Value
BrowseName		GlobalPositionDataType
IsAbstract		False
Description		Represents a global position
References	NodeClass		BrowseName	DataType	TypeDefinition	Other
Subtype of 3DGeographicCoordinateDataType
Conformance Units
GPOS GlobalPosition

9.3 GlobalLocationDataType

This structure represents a global location. The structure is defined in Table 25.

Table 25 – GlobalLocationDataType Structure

Name	Type	Description	Optional
GlobalLocationDataType	structure
Position	GlobalPositionDataType		False
Orientation	0:3DOrientation	Informs about an orientation typically with respect to a position. In mathematics, orientation defines a geometric notion.	True

Its representation in the AddressSpace is defined in Table 26.

Table 26 – GlobalLocationDataType definition

Attribute		Value
BrowseName		GlobalLocationDataType
IsAbstract		False
Description		Represents a global location
References	NodeClass		BrowseName	DataType	TypeDefinition	Other
Subtype of 0:Structure
Conformance Units
GPOS GlobalLocation

9.4 GroundControlPointDataType

This structure defines a pair of coordinates - local and global - to allow geo-references from local coordinate to a global coordinate system. The structure is defined in Table 27.

Table 27 – GroundControlPointDataType Structure

Name	Type	Description
GroundControlPointDataType	structure
GlobalPosition	3DGeographicCoordinateDataType	Position in a global coordinate reference system
LocalPosition	0:3DCartesianCoordinates	Local position in metric coordinates (in meter)

Its representation in the AddressSpace is defined in Table 28.

Table 28 – GroundControlPointDataType definition

Attribute		Value
BrowseName		GroundControlPointDataType
IsAbstract		False
Description		Defines a pair of coordinates - local and global - to allow geo-references from local coordinate to a global coordinate system
References	NodeClass		BrowseName	DataType	TypeDefinition	Other
Subtype of 0:Structure
Conformance Units
GPOS Zones