layer:
  id: "mountain_peak"
  description: |
      [Natural peaks](http://wiki.openstreetmap.org/wiki/Tag:natural%3Dpeak)
  buffer_size: 64
  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
  fields:
    name: The OSM [`name`](http://wiki.openstreetmap.org/wiki/Key:name) value of the peak.
    name_en: English name `name:en` if available, otherwise `name`.
    name_de: German name `name:de` if available, otherwise `name` or `name:en`.
    class:
      description: |
        Use the **class** to differentiate between mountain peak and volcano.
      values:
      - peak
      - volcano
      - ridge
      - cliff
      - arete
    ele: Elevation (`ele`) in meters.
    ele_ft: Elevation (`ele`) in feet.
    customary_ft:
      description: |
        Value 1 for peaks in location where feet is used as customary unit (USA).
      values:
      - 1
      - NULL
    rank: Rank of the peak within one tile (starting at 1 that is the most important peak).
  datasource:
    geometry_field: geometry
    key_field: osm_id
    key_field_as_attribute: no
    srid: 900913
    query: (SELECT osm_id, geometry, name, name_en, name_de, {name_languages}, class, ele, ele_ft, customary_ft, rank FROM layer_mountain_peak(!bbox!, z(!scale_denominator!), !pixel_width!)) AS t
schema:
  - ./update_peak_point.sql
  - ./update_mountain_linestring.sql
  - ./mountain_peak.sql
datasources:
  - type: imposm3
    mapping_file: ./mapping.yaml