| Excerpt |
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This section provides ‘RunwayCenterlinePoint’ feature data encoding guidance. |
Table of Contents
Vocabulary
ED-99
AIXM 5.1
AIRM
Name
RunwayCenterlinePoint
RunwayCenterlinePoint
Information concept:
RunwayCenterline Point: http://www.airm.aero/viewer/1.0.0/conceptual-model.html#RunwayCentrelinePoint
Data concept:
RunwayDirection: http://www.airm.aero/viewer/1.0.0/logical-model.html#RunwayDirection
Information concepts indicate the reference vocabulary and relations of an RunwayCenterlinePoint with other concepts. Data concepts indicate the reference features and properties for service architects, information/data architects and system implementers.
General
AMD data encoding can start when the necessary geographic information, aeronautical information and basic knowledge regarding the structure of created feature is available.
From the geographical point of view, the RunwayCenterlinePoint represents an operationally significant position on the centre line of a runway direction. This position is represented by one point and only this point shall be measured. The key attributes are the longitude, latitude and the elevation in reference with WGS-84. In the next part the process of converting the geographical information into the GML form thus into geometry information is described.
Based on Aeronatical Data Catalogue the required type of geometry for feature RunwayCenterlinePoint is 'Point'. The definition of geometry type Point can be found in the Table A1-9 Data types of the Aeronautical Data Catalogue.
AMD encoding
AIXM 5.1
ED-99 feature RunwayCenterlinePoint is mapped to the AIXM 5.1 as feature RunwayCentrelinePoint.
Geometry
In the AIXM 5.1 the geometry of the RunwayCentrelinePoint is point encoded as object ElevatedPoint.
For more information regarding AIXM 5.1 Geometry encoding follow 'AIXM data coding'.
GML considerations:
AIXM 5.1 is based on GML. Hence, obtained geographical location shall be transferred into a GML geometry object Point.
Figure 1 : RunwayCentrelinePoint
Time
Feature RunwayCentrelinePoint shall be established in accordance with coding rules and requirements listed in AIXM 5.1 Temporality Model.
AIXM 5.1 features
RunwayCenterlinePoint is encoded to the AIXM 5.1 as single feature RunwayCentrelinePoint.
All associations are shown in the UML Diagram (see below).
RunwayCentrelinePoint
http://aixm.aero/sites/aixm.aero/files/imce/AIXM51HTML/AIXM/Class_RunwayCentrelinePoint.html
UML Diagram (RunwayDirection)
http://aixm.aero/sites/aixm.aero/files/imce/AIXM51HTML/AIXM/Diagram_RunwayDirection.html
| Info | ||
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The following AMD properties are not covered in the AIXM 5.1. coding example: vres, hres, integr. These are covered by an AIXM 5.1. extension. |
Coding example - Structure of message
| Code Block | ||
|---|---|---|
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<AIXMBasicMessage ...>
<aixm:messageMetadata>
</aixm:messageMetadata>
<hasMember>
<aixm:AirportHeliport gml:id="uuid.0b7a2688-ab95-47e6-82c2-23fe321c4a48">
</hasMember>
<hasMember>
<aixm:Runway gml:id="uuid.de77ab7f-6bb1-43b4-817e-ce4465deb3a3">
</hasMember>
<hasMember>
<aixm:RunwayCentrelinePoint gml:id="uuid.71228bfe-4b2a-4c04-94ef-b76aba948cc9">
</hasMember>
<hasMember>
<aixm:RunwayDirection gml:id="uuid.62dd41c8-fa4e-4017-9d58-6c8432c35a03">
</hasMember>
</AIXMBasicMessage> |
Coding example - RunwayCenterlinePoint
| Code Block | ||
|---|---|---|
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<hasMember>
<aixm:RunwayCentrelinePoint gml:id="uuid.71228bfe-4b2a-4c04-94ef-b76aba948cc9">
<gml:identifier codeSpace="urn:uuid:">71228bfe-4b2a-4c04-94ef-b76aba948cc9</gml:identifier>
<aixm:timeSlice>
<aixm:RunwayCentrelinePointTimeSlice gml:id="uuid.0bf931af-77d4-4d30-9a0e-99b3265960cd">
<gml:validTime>
<gml:TimePeriod gml:id="uuid.7db20d96-21ed-4472-80b5-02560d344ea0">
<gml:beginPosition>2020-09-01T00:00:00Z</gml:beginPosition>
<gml:endPosition indeterminatePosition="unknown" />
</gml:TimePeriod>
</gml:validTime>
<aixm:interpretation>BASELINE</aixm:interpretation>
<aixm:sequenceNumber>1</aixm:sequenceNumber>
<aixm:correctionNumber>0</aixm:correctionNumber>
<aixm:featureLifetime>
<gml:TimePeriod gml:id="uuid.1387bc19-ed6c-42fd-909f-1a2e0527fa24">
<gml:beginPosition>2020-09-01T00:00:00Z</gml:beginPosition>
<gml:endPosition indeterminatePosition="unknown" />
</gml:TimePeriod>
</aixm:featureLifetime>
<aixm:location>
<aixm:ElevatedPoint gml:id="uuid.10c1fb09-4837-4755-9bb5-06a1208bb464" srsName="urn:ogc:def:crs:EPSG::4326">
<gml:pos>50.1036375 14.2544378</gml:pos>
<aixm:horizontalAccuracy uom="M">0.5</aixm:horizontalAccuracy>
<aixm:elevation uom="M">352</aixm:elevation>
<aixm:geoidUndulation uom="M">45.7</aixm:geoidUndulation>
<aixm:verticalAccuracy uom="M">0.25</aixm:verticalAccuracy>
</aixm:ElevatedPoint>
</aixm:location>
<aixm:onRunway xlink:href="#62dd41c8-fa4e-4017-9d58-6c8432c35a03" xlink:title="30" />
</aixm:RunwayCentrelinePointTimeSlice>
</aixm:timeSlice>
</aixm:RunwayCentrelinePoint>
</hasMember> |
Download feature RunwayCenterlinePoint:
AMXM
https://ext.eurocontrol.int/aixm_confluence/display/AMX/RunwayCentrelinePoint
TBD