| Excerpt |
|---|
| This section provides ‘Blastpad’ feature data encoding guidance. |
Table of Contents
Vocabulary
ED-99 | ED-119/AMXM | AIXM 5.1 | AIRM | |
Name | Blastpad | AM_Blastpad | RunwayBlastPad | RunwayBlastPad |
Information concept:
RunwayBlastPad: http://www.airm.aero/viewer/1.0.0/conceptual-model.html#RunwayBlastPad
Data concept:
RunwayBlastPad: http://www.airm.aero/viewer/1.0.0/logical-model.html#RunwayBlastPad
Information concepts indicate the reference vocabulary and relations of a Blastpad 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 Blastpad represents the surface placed adjacent to the end of the runway. Several point from the outer border of this surface 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 Blastpad is 'Polygon'. The definition of Point can be found in the Table A1-9 Data types of the Aeronautical Data Catalogue.
AMD encoding
AIXM 5.1
ED-99 feature Blastpad is mapped in the AIXM 5.1 as feature RunwayBlastPad.
Geometry
In the AIXM 5.1 the geometry of the feature RunwayBlastPad is polygon encoded as object ElevatedSurface.
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 locations shall be transferred into a GML geometry object PolygonPatch.
Figure 1 : Blastpad
Time
Feature RunwayBlastPad shall be established in accordance with coding rules and requirements listed in AIXM 5.1 Temporality Model.
AIXM 5.1 features
Blastpad is encoded to the AIXM 5.1 as feature RunwayBlastPad.
All associations are shown in the UML Diagram (see below).
RunwayBlastPad feature
http://aixm.aero/sites/aixm.aero/files/imce/AIXM51HTML/AIXM/Class_RunwayBlastPad.html
UML Diagram (Runway / RunwayBlastPad)
http://aixm.aero/sites/aixm.aero/files/imce/AIXM51HTML/AIXM/Diagram_RunwayBlastPad.html
| Info | ||
|---|---|---|
| ||
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 | ||
|---|---|---|
| ||
<AIXMBasicMessage ...>
<aixm:messageMetadata>
</aixm:messageMetadata>
<hasMember>
<aixm:AirportHeliport gml:id="uuid.0b7a2688-ab95-47e6-82c2-23fe321c4a48">
</hasMember>
<hasMember>
<aixm:Runway gml:id="uuid.3f4952ee-a237-47d9-ab33-23f46a6332b1">
</hasMember>
<hasMember>
<aixm:RunwayBlastPad gml:id="uuid.a53ea72b-f14b-4236-96a3-4f31f6996006">
</hasMember>
<hasMember>
<aixm:RunwayDirection gml:id="uuid.f3b6aa50-7cce-455e-b33b-9706289f7d14">
</hasMember>
</AIXMBasicMessage> |
Coding example - RunwayBlastPad
| Code Block | ||
|---|---|---|
| ||
<hasMember>
<aixm:RunwayBlastPad gml:id="uuid.a53ea72b-f14b-4236-96a3-4f31f6996006">
<gml:identifier codeSpace="urn:uuid:">a53ea72b-f14b-4236-96a3-4f31f6996006</gml:identifier>
<aixm:timeSlice>
<aixm:RunwayBlastPadTimeSlice gml:id="uuid.27fbb768-7553-412e-a66b-d7e78765afee">
<gml:validTime>
<gml:TimePeriod gml:id="uuid.ad22fb6d-d6da-4ce5-b6a2-f38ee1e7d404">
<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.4712aefa-05de-404f-ae5f-ea70682aa4b9">
<gml:beginPosition>2020-09-01T00:00:00Z</gml:beginPosition>
<gml:endPosition indeterminatePosition="unknown" />
</gml:TimePeriod>
</aixm:featureLifetime>
<aixm:usedRunwayDirection xlink:href="#f3b6aa50-7cce-455e-b33b-9706289f7d14" xlink:title="24" />
<aixm:extent>
<aixm:ElevatedSurface gml:id="uuid.e9426a86-dfd7-411b-8657-aaa7c1e23af9" srsName="urn:ogc:def:crs:EPSG::4326">
<gml:patches>
<gml:PolygonPatch>
<gml:exterior>
<gml:Ring>
<gml:curveMember>
<gml:Curve gml:id="uuid.02283f80-c7a3-43fa-9fe5-2f98b4bca01e">
<gml:segments>
<gml:GeodesicString interpolation="geodesic">
<gml:posList>50.11569881 14.27359253 50.11600507 14.27460528 50.11650707 14.27423748 50.11619931 14.27322507 50.11569881 14.27359253</gml:posList>
</gml:GeodesicString>
</gml:segments>
</gml:Curve>
</gml:curveMember>
</gml:Ring>
</gml:exterior>
</gml:PolygonPatch>
</gml:patches>
<aixm:horizontalAccuracy uom="M">0.5</aixm:horizontalAccuracy>
<aixm:elevation uom="M">376</aixm:elevation>
<aixm:verticalAccuracy uom="M">0.5</aixm:verticalAccuracy>
</aixm:ElevatedSurface>
</aixm:extent>
</aixm:RunwayBlastPadTimeSlice>
</aixm:timeSlice>
</aixm:RunwayBlastPad>
</hasMember> |
Table of properties of Blastpad
Blastpad
-
yes
feattype
Note: Can be implied
idarpt
usedRunwayDirection.RunwayDirection.usedRunway.Runway.associatedAirportHeliport.AirportHeliport.locationIndicatorICAO
usedRunwayDirection.RunwayDirection.designator
vacc
extent.ElevatedSurface.verticalAccuracy
hacc
extent.ElevatedSurface.horizontalAccuracy
vres
extent.ElevatedSurface.verticalResolution
hres
extent.ElevatedSurface.horizontalResolution
source
source
OR
gmd:MD_Metadata.gmd:dataQualityInfo.gmd:lineage.gmd:LI_Lineage.gmd:processStep.gmd:LI_ProcessStep
Note: Needs processor with a role set to "publisher".
integr
integrity
revdate
revisionDate
OR
gmd:MD_Metadata.gmd:identificationInfo.gmd:MD_DataIdentification.gmd:citation.gmd:CI_Citation.gmd:date.gmd:CI_Date.gmd:date
Note: also needs gmd:CI_Date.gmd:dateType.gmd:CI_DateTypeCode to be set to "revision"
extent.ElevatedSurface
Download feature Blastpad:
AMXM
https://ext.eurocontrol.int/aixm_confluence/display/AMX/Blastpad
TBD