6ef138635d
This PR removes the possibility of negative feature IDs for the `aerodrome_label` layer by defining the feature as the absolute value of the OSM id (imposm maps relations with negative numbers). There is a very unlikely scenario in which a relation and a way have the same ID (and are also in the same tile), however, unique IDs are not a strict requirement of MVT. Noted in: https://github.com/openmaptiles/openmaptiles/pull/1176#issuecomment-902503655 Positive feature ID for Quonset State Airport, which is mapped as a relation: 
51 lines
1.9 KiB
YAML
51 lines
1.9 KiB
YAML
layer:
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id: aerodrome_label
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description: |
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[Aerodrome labels](http://wiki.openstreetmap.org/wiki/Tag:aeroway%3Daerodrome)
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buffer_size: 64
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srs: +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0.0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs +over
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fields:
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name: The OSM [`name`](http://wiki.openstreetmap.org/wiki/Key:name) value of the aerodrome.
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name_en: English name `name:en` if available, otherwise `name`.
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name_de: German name `name:de` if available, otherwise `name` or `name:en`.
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class:
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description: |
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Distinguish between more and less important aerodromes.
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Class is derived from the value of
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[`aerodrome`](http://wiki.openstreetmap.org/wiki/Proposed_features/Aerodrome)
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and `aerodrome:type` tags.
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values:
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international:
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aerodrome: 'international'
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aerodrome_type: 'international'
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public:
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aerodrome: 'public'
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aerodrome_type: ['%public%', 'civil']
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regional:
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aerodrome: 'regional'
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aerodrome_type: 'regional'
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military:
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aerodrome: 'military'
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aerodrome_type: '%military%'
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military: 'airfield'
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private:
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aerodrome: 'private'
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aerodrome_type: 'private'
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other:
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iata: 3-character code issued by the IATA.
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icao: 4-letter code issued by the ICAO.
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ele: Elevation (`ele`) in meters.
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ele_ft: Elevation (`ele`) in feets.
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datasource:
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geometry_field: geometry
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key_field: id
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key_field_as_attribute: no
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srid: 900913
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query: (SELECT id, geometry, name, name_en, name_de, {name_languages}, class, iata, icao, ele, ele_ft FROM layer_aerodrome_label(!bbox!, z(!scale_denominator!))) AS t
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schema:
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- ./update_aerodrome_label_point.sql
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- ./aerodrome_label.sql
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datasources:
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- type: imposm3
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mapping_file: ./mapping.yaml
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