Copyright © 2013 Open Geospatial Consortium.
17 2.0 abstract filter query in the SLD; it currently seems however that work on this
has stalled.
6.1.3 WFS query with a temporal extent
Given that it is hard to filter out specific time slices with the limitations of WMS 1.3.0, we can also redefine the problem a bit: instead of specifying the desired NOTAMs, the
user can also specify a relevant time instant. This time instant can be encoded next to the ogc:Filter for the features as an sld:Extent.
Advantages: The filter becomes less complex, as the time slice selection part is reduced to the
time instant. The reduced complexity of the filter might mean that even lightweight clients can
talk directly to the FPS. The same or better caching options on FPS side as with using WFS queries.
Disadvantages: This does not solve the problem if the user has a very specific list of NOTAMs to
visualize. The FPS needs knowledge of the WFS AIXM5 profile.
6.2 Example requests responses
This section describes a few example requests and responses to illustrate the communication between the various components in the architecture.
6.2.1 Example Digital NOTAM
As an example, we define a Digital NOTAM event that temporarily adds a crane at Chicago O’ Hare airport:
?xml version=1.0 encoding=UTF-8? message:AIXMBasicMessage
xmlns:message=http:www.aixm.aeroschema5.1message xmlns:gts=http:www.isotc211.org2005gts
xmlns:gco=http:www.isotc211.org2005gco
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xmlns:xsd=http:www.w3.org2001XMLSchema xmlns:gml=http:www.opengis.netgml3.2
xmlns:gss=http:www.isotc211.org2005gss xmlns:aixm=http:www.aixm.aeroschema5.1
xmlns:gsr=http:www.isotc211.org2005gsr xmlns:gmd=http:www.isotc211.org2005gmd
xmlns:event=http:www.aixm.aeroschema5.1event xmlns:xlink=http:www.w3.org1999xlink
xmlns:xsi=http:www.w3.org2001XMLSchema-instance xsi:schemaLocation=http:www.w3.org2001XMLSchema
http:www.w3.org2001XMLSchema.xsd http:www.opengis.netgml3.2 http:www.aixm.aerogallerycontentpublicschema5.1ISO_19136_Sch
emasgml.xsd http:www.aixm.aeroschema5.1message http:www.aixm.aerogallerycontentpublicschema5.1messageAIXM_
BasicMessage.xsd http:www.isotc211.org2005gmd http:www.aixm.aerogallerycontentpublicschema5.1ISO_19139_Sch
emasgmdgmd.xsd http:www.aixm.aeroschema5.1event http:www.aixm.aerogallerycontentpublicschema5.1eventEvent_F
eatures.xsd http:www.w3.org1999xlink http:www.aixm.aerogallerycontentpublicschema5.1xlinkxlinks.
xsd gml:id=FNS-Message message:hasMember
event:Event gml:id=uuid.75d06775-ce9b-4524-92e1-c06999fb7660 gml:identifier codeSpace=urn:uuid:75d06775-ce9b-4524-92e1-
c06999fb7660gml:identifier event:timeSlice
event:EventTimeSlice gml:id=ID_964 gml:validTime
gml:TimeInstant gml:id=ID_965 gml:timePosition2012-08-
01T06:00:00Zgml:timePosition gml:TimeInstant
gml:validTime aixm:interpretationPERMDELTAaixm:interpretation
aixm:sequenceNumber1aixm:sequenceNumber aixm:featureLifetime
gml:TimePeriod gml:id=ID_966 gml:beginPosition2012-08-
01T06:00:00Zgml:beginPosition gml:endPosition2012-08-
31T18:00:00Zgml:endPosition gml:TimePeriod
aixm:featureLifetime event:encodingDIGITALevent:encoding
event:scenarioOBS.NEWevent:scenario event:revision2012-07-30T14:00:00Zevent:revision
event:EventTimeSlice
Copyright © 2013 Open Geospatial Consortium.
19
event:timeSlice event:Event
message:hasMember message:hasMember
aixm:VerticalStructure gml:id=uuid.6a934ad9-79fe-47c2-bf59- 5c5c70efe9a6
gml:identifier codeSpace=urn:uuid:6a934ad9-79fe-47c2-bf59- 5c5c70efe9a6gml:identifier
aixm:timeSlice aixm:VerticalStructureTimeSlice gml:id=ID_972
gml:validTime gml:TimeInstant gml:id=ID_973
gml:timePosition2012-08- 01T06:00:00Zgml:timePosition
gml:TimeInstant gml:validTime
aixm:interpretationPERMDELTAaixm:interpretation aixm:sequenceNumber1aixm:sequenceNumber
aixm:nameKORD_CRANEaixm:name aixm:typeCRANEaixm:type
aixm:lightedYESaixm:lighted aixm:part
aixm:VerticalStructurePart gml:id=ID_974 aixm:verticalExtent
uom=FT85.0aixm:verticalExtent aixm:typeCRANEaixm:type
aixm:mobileNOaixm:mobile aixm:horizontalProjection_location
aixm:ElevatedPoint srsName=urn:ogc:def:crs:EPSG::4326 gml:id=ID_975
gml:pos41.96548973 -087.89822257gml:pos aixm:elevation uom=FT743aixm:elevation
aixm:ElevatedPoint aixm:horizontalProjection_location
aixm:VerticalStructurePart aixm:part
aixm:annotation aixm:Note gml:id=ID_976
aixm:purposeWARNINGaixm:purpose aixm:translatedNote
aixm:LinguisticNote gml:id=ID_977 aixm:notelocated at airport KORDaixm:note
aixm:LinguisticNote aixm:translatedNote
aixm:Note aixm:annotation
aixm:extension event:VerticalStructureExtension gml:id=ID_982
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event:theEvent xlink:href=uuid.75d06775-ce9b-4524- 92e1-c06999fb7660 xsi:nil=true
event:VerticalStructureExtension aixm:extension
aixm:VerticalStructureTimeSlice aixm:timeSlice
aixm:VerticalStructure message:hasMember
message:AIXMBasicMessage
6.2.2 The request from the ePIB application to the WPS
