This little script look for files from OpenAIP in the folder input, and transform those into GeoJSON files.
- parser for .aip files
- parser for .cup files
- parser for .dat files
- ask for input/output directories
- a better "check duplicates" method
- a better console output (ongoing)
- generate areas from runways, from their properties.
Clone the project, and install dependencies by running
npm installThen run it with
cd OpenAIP2GeoJSON/
node index.jsThe parser will then look into the input folder and parse all extensions readable by the script.
Your GeoJSON files will be exported into the output folder.
Following the RFC 7946, all files are following the GeoJSON structure defined by IETF.
All datas are divided into separate files :
- airports.geojson,
- airspaces.geojson,
- hotspots.geojson,
- navaids.geojson,
- runways.geojson
Each of those is a FeatureCollection, containing the datas. Actually, apart from airspaces, all datas are Points (airspaces are Polygons).
Even if not in used at the moment, a guid property is given for each geographical information.
- Coordinates (
[longitude, latitude]) in decimal degrees, - Elevation (
elev) in decimal meters, - Frequencies in MHz (MegaHertz).
// Example from France OpenAIP for Abbeville airport.
{
"type":"FeatureCollection",
"features":[
{
"type":"Feature",
"geometry":{
"type":"Point",
"coordinates":[1.831389,50.101667]
},
"properties":{
"guid":"",
"aeronautical":"airport",
"name":"ABBEVILLE",
"type":"HELI_CIVIL",
"country":"FR",
"icao":"",
"radios":[
{
"category":"COMMUNICATION",
"frequency":134.825,
"type":"FIS",
"spec":"",
"description":"LILLE Information"
}
],
"elev":24.9936
}
},
...
]
}// Example from France OpenAIP for Bourg-St-Maurice airspace.
{
"type":"FeatureCollection",
"features":[
{
"type":"Feature",
"geometry":{
"type":"Polygon",
"coordinates":[
[
[6.6333333333333,45.659166666667],
[6.7127777777778,45.697777777778],
[6.745,45.673888888889],
[6.7525,45.614444444444],
[6.75,45.613333333333],
[6.7205555555556,45.610833333333],
[6.6333333333333,45.659166666667]
]
]
},
"properties":{
"guid":"",
"aeronautical":"airspace",
"category":"DANGER",
"version":"d10ba4b78e487033c62696d9776893c21f17479f",
"id":"117703",
"country":"FR",
"name":"7 D 187 BourgStMaurice",
"alt_limits":{
"top":{"ref":"STD","value":"FL 55"},
"bottom":{"ref":"GND","value":"F 0"}
}
}
},
...
]
}// Example from France OpenAIP for Beynes hotspot.
{
"type":"FeatureCollection",
"features":[
{
"type":"Feature",
"geometry":{
"type":"Point",
"coordinates":[6.24768066413,43.968807501452]
},
"properties":{
"guid":"",
"aeronautical":"hotspot",
"type":"NATURAL",
"country":"FR",
"name":"Beynes",
"elev":1573,
"reliability":0.65,
"occurrence":"IRREGULAR_INTERVAL",
"conditions":[
{
"type":"FAVORABLE",
"timeofday":["NOON/AFTERNOON","AFTERNOON/LATE_AFTERNOON"],
"wind":[]
}
]
}
},
...
]
}// Example from France OpenAIP for Abbeville navaid.
{
"type":"FeatureCollection",
"features":[
{
"type":"Feature",
"geometry":{
"type":"Point",
"coordinates":[1.8547222222222,50.135277777778]
},
"properties":{
"guid":"",
"aeronautical":"navaid",
"type":"VOR-DME",
"country":"FR",
"id":"ABB",
"elev":68,
"radios":[
{"frequency":108.45,"channel":"21Y"}
],
"params":{
"range":60,
"declination":-0.31475,
"alignedtotruenorth":false
}
}
},
...
]
}// Example from France OpenAIP for one of Abbeville's airport runways.
{
"type":"FeatureCollection",
"features":[
{
"type":"Feature",
"geometry":{
"type":"Point",
"coordinates":[1.8325,50.143056]
},
"properties":{
"guid":"",
"aeronautical":"runway",
"operations":"ACTIVE",
"airport":"ABBEVILLE",
"name":"02/20",
"sfc":"ASPH",
"elev":67.056,
"length":1249.9848,
"width":22.86,
"directions":["024","204"]
}
},
...
]
}This parser uses :
Since this little parser is just a parser, and is not providing any datas - examples are just examples, don't trust those -, the datas are not qualified to be use instead of official sources (following aeronautical rules, you must have datas provided officially).