Class - PointReference

<< object >> Logical View.AIXM.AIXM Features.Navaids Points.Point Reference

<<object>> Defines the location of a designated point using a combination of angles and distances based on the guidance service. The set of angles and distances must not under specify the location. The indications that are part of the PointReference must locate the same designated point.

List of attributes

Name	Data Type	Definition
role	CodeReferenceRoleType	Describes the role of the defined point reference. Example: DME, INT, recommended navaid, fix tolerance
priorFixTolerance	ValDistanceSignedType	Because the fix may be received early, protection against obstacles must be provided from a line perpendicular to the flight course. PriorFixTolerance indicates the error distance (from the fix to the earliest point where the fix may be received along the flight course.
postFixTolerance	ValDistanceSignedType	Indicates the error distance (from the fix to the latest point where the fix may be received along the flight course.

Navigable associations from PointReference

Association	Multiplicity	Role	To	Role description
locates	0..1	point	DesignatedPoint	A point defined by a latitude and longitude and/or a combination of angle and/or distance indications.
isBasedOnAngle	0..*	facilityAngle	AngleIndication	Angle from the facility to the Significant Point.
isBasedOnDistance	0..*	facilityDistance	DistanceIndication	Distance from the facility to the Significant Point.
hasFixError	0..1	fixToleranceArea	Surface	The dimensions of the fix tolerance area are determined by the system use accuracy of the navigation aid(s) on which the fix is based, and the distance from the facility.
hasAnnotations	0..*	annotation	Note

Navigable associations to PointReference

From	Association	Multiplicity	Role	To	Role description
SegmentPoint	isFoundUsing	0..*	facilityMakeup	Specific facility make up used by aircraft to locate the segment point.

Used By (diagrams)

1 - Segment Points , 2 - Designated Point , 2 - Point Reference , 2 - Unplanned Holding

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Class - PointReference

List of attributes

Navigable associations from PointReference

Navigable associations to PointReference

Used By (diagrams)