osm_br.yml

name: OpenStreetMap e Brezhoneg
description: 'A general-purpose OpenStreetMap mapnik style, focused on minored langages, in CartoCSS'
attribution: 'CC-BY-SA OSM-BZH'
scale: 1
metatile: 2
bounds: &world
  - -180
  - -85
  - 180
  - 85
center:
  - -2.96
  - 48.03
  - 8
format: 'png'
interactivity: false
minzoom: 4
maxzoom: 18
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"


_parts:
  # default values used by layers
  extents: &extents
    extent: *world
    srs-name: "3857"
    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"
    class: ''
    status: 'on'

  extents84: &extents84
    extent: *world
    srs-name: "WGS84"
    srs: "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"

  osm2pgsql: &osm2pgsql
    type: "postgis"
    dbname: "osm"
    key_field: ""
    geometry_field: "way"
    extent: "-20037508,-20037508,20037508,20037508"
    host: db.openstreetmap.world
    user: osmbr
    password: m4d31nbr31zh
    asynchronous_request: true
    max_async_connection: 4
    max_size: 50
    cursor_size: 5000


# stylesheets
Stylesheet:
  - styles/palette.mss
  - styles/base.mss
  - styles/landcover.mss
  - styles/admin.mss
  - styles/roads.mss
  - styles/placenames.mss
  - styles/labels.mss


# the layers
Layer:

  - id: land_low
    geometry: polygon
    <<: *extents
    Datasource:
      file: /data/project/styles/data/simplified-land-polygons-complete-3857/simplified_land_polygons.shp
      type: shape
    properties:
      maxzoom: 10


  - id: land_high
    geometry: polygon
    <<: *extents
    Datasource:
      file: /data/project/styles/data/land-polygons-split-3857/land_polygons.shp
      type: shape


  - id: landcover_low
    geometry: polygon
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id, way, way_area AS area, COALESCE(landuse, leisure, "natural", highway, amenity, tourism) AS type
        FROM
          planet_osm_polygon
        WHERE
          landuse IN ('forest')
          AND way && !bbox!
          AND way_area > 0.01*!pixel_width!::real*!pixel_height!::real
        ) AS landcover_low
    simplify_geometries: 'true'
    properties:
      minzoom: 6
      maxzoom: 9


  - id: landcover
    geometry: polygon
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id, way, way_area AS area, COALESCE(landuse, leisure, "natural", highway, amenity, tourism) AS type
        FROM
          planet_osm_polygon
        WHERE
          way && !bbox!
          AND way_area > 1*!pixel_width!::real*!pixel_height!::real
        ORDER BY z_order, way_area DESC
        ) AS landcover
    simplify_geometries: 'true'
    properties:
      minzoom: 10


  - id: aeroway
    geometry: polygon
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id, way, aeroway AS type
        FROM
          planet_osm_line
        WHERE
          aeroway IN ('apron', 'runway', 'taxiway')
        ) AS aeroway
    properties:
      minzoom: 10


  - id: waterarea_low
    geometry: polygon
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id, way, "natural" AS type, way_area AS area
        FROM
          planet_osm_polygon 
        WHERE
          ("natural" IN ('water', 'pond')
          OR waterway IN ('basin', 'canal', 'mill_pond', 'pond', 'riverbank', 'stream'))
          AND way_area > 75000
        ) AS waterarea_low
    simplify_geometries: 'true'
    properties:
      minzoom: 7
      maxzoom: 10

  - id: waterarea_med
    geometry: polygon
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id, way, "natural" AS type, way_area AS area
        FROM
          planet_osm_polygon 
        WHERE
          ("natural" IN ('water', 'pond')
          OR waterway IN ('basin', 'canal', 'mill_pond', 'pond', 'riverbank', 'stream'))
          AND way_area > 50000
        ) AS waterarea_med
    simplify_geometries: 'true'
    properties:
      minzoom: 10
      maxzoom: 12

  - id: waterarea
    geometry: polygon
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT 
          osm_id,
          way,
          way_area AS area,
          COALESCE(tags -> 'name:br'::text) as name,
          COALESCE(waterway, '') || COALESCE(landuse, '') || COALESCE("natural", '') as type
        FROM
          planet_osm_polygon
        WHERE 
          waterway IN ('riverbank')
          OR (landuse = ANY (ARRAY['reservoir'::text, 'water'::text, 'basin'::text, 'salt_pond'::text]))
          OR ("natural" = ANY (ARRAY['lake'::text, 'water'::text])) OR amenity = 'swimming_pool'::text
          OR leisure = 'swimming_pool'::text
        ) AS waterarea
    properties:
      minzoom: 12


  - id: waterway_low
    geometry: linestring
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id, COALESCE(tags -> 'name:br'::text) as name, COALESCE(waterway, '') as type, way
        FROM
          planet_osm_line
        WHERE
          waterway in ('river','canal')
        ORDER BY z_order
        ) AS waterway_low
    simplify_geometries: 'true'
    properties:
      minzoom: 8
      maxzoom: 12


  - id: waterway_med
    geometry: linestring
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id, COALESCE(tags -> 'name:br'::text) as name, COALESCE(waterway, '') as type, way
        FROM
          planet_osm_line
        WHERE
          waterway in ('stream','river','canal')
        ORDER BY z_order
        ) AS waterway_med
    simplify_geometries: 'true'
    properties:
      minzoom: 13
      maxzoom: 14

  - id: waterway_high
    geometry: linestring
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id, COALESCE(tags -> 'name:br'::text) as name, COALESCE(waterway, '') as type, way
        FROM
          planet_osm_line
        WHERE
          waterway in ('weir','river','canal','derelict_canal','stream','drain','ditch','wadi')
        ORDER BY z_order
        ) AS waterway_high
    properties:
      minzoom: 15


  - id: buildings
    geometry: polygon
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id, way, 'building' AS type
        FROM
          planet_osm_polygon
        WHERE
          building NOT IN ('', '0','false', 'no')
        ORDER BY z_order, way_area DESC
        ) AS buildings
    properties:
      minzoom: 13


  - id: rail_low
    geometry: linestring
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id,
          way,
          COALESCE(railway) AS type,
          tags->'usage'::text AS usage,
          tunnel,
          bridge
        FROM
          planet_osm_line 
        WHERE
          railway IN ('rail') AND tags->'usage'::text IN ('main', 'branch')
        ) AS rail_low
    simplify_geometries: 'true'
    properties:
      minzoom: 6
      maxzoom: 8


  - id: tunnel
    geometry: linestring
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id,
          way,
          COALESCE(highway, railway) AS type,
          0 AS bridge,
          access,
          render,
          layer,
          1 as tunnel,
          CASE
            WHEN highway IN ('motorway', 'trunk') THEN 'motorway'
            WHEN highway IN ('primary', 'secondary') THEN 'mainroad'
            WHEN highway IN ('motorway_link', 'trunk_link', 'primary_link', 'secondary_link', 'tertiary', 'tertiary_link', 'residential', 'unclassified', 'road', 'living_street') THEN 'minorroad'
            WHEN highway IN ('service', 'track') THEN 'service'
            WHEN highway IN ('path', 'cycleway', 'footway', 'pedestrian', 'steps', 'bridleway') THEN 'noauto'
            WHEN railway IN ('light_rail', 'subway', 'narrow_gauge', 'rail', 'tram') THEN 'railway'
          ELSE
            'other'
          END AS stylegroup
        FROM
          (
              SELECT *, '1_outline' AS render
              FROM planet_osm_line 
              WHERE tunnel NOT IN ('', '0', 'no')
            UNION ALL
              SELECT *, '2_line' AS render
              FROM planet_osm_line
              WHERE tunnel NOT IN ('', '0', 'no')
            UNION ALL
              SELECT *, '3_inline' AS render
              FROM planet_osm_line
              WHERE tunnel NOT IN ('', '0', 'no')
          ) AS tunnels
        ORDER BY layer ASC, render ASC ) AS tunnel
    simplify_geometries: 'true'
    properties:
      minzoom: 11


  - id: roads_low
    geometry: linestring
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id,
          way,
          COALESCE(highway, railway) AS type, 
          0 AS tunnel,
          0 AS bridge,
          access,
          'fill' AS render, 
          CASE 
              WHEN highway IN ('motorway', 'trunk') THEN 'motorway' 
              WHEN highway IN ('primary') THEN 'mainroad'  
              WHEN railway IN ('rail') THEN 'railway'
          ELSE 'other'
          END AS stylegroup 
        FROM planet_osm_line 
        WHERE
          highway IN ('motorway', 'trunk', 'primary')
          OR railway IN ('rail')
          AND (tunnel IS NULL OR tunnel = 'no') 
          AND (bridge IS NULL OR bridge = 'no') 
        ORDER BY z_order  ) AS roads_low
    simplify_geometries: 'true'
    properties:
      minzoom: 6
      maxzoom: 8


  - id: roads_med
    geometry: linestring
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id,
          way,
          COALESCE(highway, railway) AS type, 
          0 AS tunnel, 0 AS bridge, access, 'fill' AS render, 
          CASE 
          WHEN highway IN ('motorway', 'trunk') THEN 'motorway' 
          WHEN highway IN ('primary', 'secondary') THEN 'mainroad' 
          WHEN highway IN ('motorway_link', 'trunk_link', 'primary_link', 'secondary_link', 'tertiary', 'tertiary_link') THEN 'minorroad'  
          WHEN railway IN ('light_rail', 'subway', 'narrow_gauge', 'rail', 'tram') THEN 'railway'
          ELSE 'other'
          END AS stylegroup 
        FROM planet_osm_line 
        WHERE
          highway IN ('motorway', 'trunk', 'primary', 'secondary', 'motorway_link', 'trunk_link', 'primary_link', 'secondary_link', 'tertiary', 'tertiary_link')
          OR railway IN ('light_rail', 'subway', 'narrow_gauge', 'rail', 'tram')
          AND (tunnel IS NULL OR tunnel = 'no') AND (bridge IS NULL OR bridge = 'no')
        ORDER BY z_order  ) AS roads_med
    simplify_geometries: 'true'
    properties:
      minzoom: 9
      maxzoom: 10


  - id: roads_high
    geometry: linestring
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id,
          way,
          COALESCE(highway, railway) AS type, 
          0 AS tunnel,
          0 AS bridge,
          access,
          'fill' AS render, 
          CASE 
              WHEN highway IN ('motorway', 'trunk') THEN 'motorway' 
              WHEN highway IN ('primary', 'secondary') THEN 'mainroad' 
              WHEN highway IN ('motorway_link', 'trunk_link', 'primary_link', 'secondary_link', 'tertiary', 'tertiary_link', 'residential', 'unclassified', 'road', 'living_street') THEN 'minorroad' 
              WHEN highway IN ('service', 'track') THEN 'service' 
              WHEN highway IN ('path', 'cycleway', 'footway', 'pedestrian', 'steps', 'bridleway') THEN 'noauto' 
              WHEN railway IN ('light_rail', 'subway', 'narrow_gauge', 'rail', 'tram') THEN 'railway' 
              ELSE 'other' 
          END AS stylegroup 
        FROM planet_osm_line 
        WHERE
          (highway IS NOT NULL OR railway IS NOT NULL)
          AND (tunnel IS NULL OR tunnel = 'no')
          AND (bridge IS NULL OR bridge = 'no')
        ORDER BY z_order   ) AS roads_high
    simplify_geometries: 'true'
    properties:
      minzoom: 11


  - id: bridge
    geometry: linestring
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          way,
          COALESCE(highway, railway) AS type,
          1 AS bridge, access, render, layer,
          0 as tunnel,
          CASE
            WHEN highway IN ('motorway', 'trunk') THEN 'motorway'  
            WHEN highway IN ('primary', 'secondary') THEN 'mainroad'  
            WHEN highway IN ('motorway_link', 'trunk_link', 'primary_link', 'secondary_link', 'tertiary', 'tertiary_link', 'residential', 'unclassified', 'road', 'living_street') THEN 'minorroad'  
            WHEN highway IN ('service', 'track') THEN 'service'  
            WHEN highway IN ('path', 'cycleway', 'footway', 'pedestrian', 'steps', 'bridleway') THEN 'noauto'  
            WHEN railway IN ('light_rail', 'subway', 'narrow_gauge', 'rail', 'tram') THEN 'railway'  
          ELSE 'other'
          END AS stylegroup
          FROM 
          (
              SELECT *, '1_outline' AS render
              FROM planet_osm_line 
              WHERE bridge NOT IN ('', '0', 'no')
            UNION ALL
              SELECT *, '2_line' AS render
              FROM planet_osm_line
              WHERE bridge NOT IN ('', '0', 'no')
            UNION ALL
              SELECT *, '3_inline' AS render
              FROM planet_osm_line
              WHERE bridge NOT IN ('', '0', 'no')
          ) AS bridges
        ORDER BY layer ASC, render ASC   ) AS bridge
    simplify_geometries: 'true'
    properties:
      minzoom: 11


  - id: admin_boundaries
    geometry: linestring
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          ST_Simplify(b.way,!pixel_width!/4) as way,
          admin_level::integer AS admin_level,
          coalesce(b.tags->'maritime','no') AS maritime,
          count(r.*)::integer AS nb,
          string_agg(id::text,',') AS rels
        FROM planet_osm_roads b
        LEFT JOIN planet_osm_rels r ON (r.parts @> ARRAY[osm_id]
          AND r.members @> ARRAY['w' || osm_id]
          AND regexp_replace(r.tags::text,'[{}]',',') ~ format('(,admin_level,%s.*,boundary,administrative|,boundary,administrative.*,admin_level,%s,)',admin_level,admin_level)) 
        WHERE
          way && !bbox!
          AND boundary='administrative'
          AND admin_level IS NOT NULL
        GROUP BY 1,2,3
        ORDER BY admin_level DESC   ) AS admin_boundaries
    simplify_geometries: 'true'
    properties:
      minzoom: 11


  - id: placenames_medium
    geometry: point
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT name, place, admin_level, way
        FROM
        (
          SELECT
            ROW_NUMBER() OVER(PARTITION BY p.osm_id 
              ORDER BY substring(substring(r.tags::text,'admin_level,[0-9]'),'[0-9]') ASC) AS rank
            , p.osm_id
            , p.place
            , COALESCE(p.tags -> 'name:br'::text,'') as name
            , substring(substring(r.tags::text,'admin_level,[0-9]'),'[0-9]')::integer AS admin_level
            , p.way
          FROM planet_osm_point p
            LEFT JOIN planet_osm_rels r ON (r.parts @> ARRAY[p.osm_id] AND r.members @> ARRAY['n' || p.osm_id])
          WHERE
            way && !bbox!
            AND p.place IN ('town','city')
            AND r.members::text ~ 'admin_centre'
            AND r.tags::text ~ 'admin_level,[0-9]' = TRUE
          GROUP BY osm_id, place, COALESCE(p.tags -> 'name:br'::text,''), way, substring(substring(r.tags::text,'admin_level,[0-9]'),'[0-9]')
        ) AS src
        WHERE rank = 1 AND name <> ''
        ORDER BY admin_level, name ) AS placenames_medium
    properties:
      cache-features: true
      minzoom: 4
      maxzoom: 15


  - id: placenames_small
    geometry: point
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
            way,
            place,
            COALESCE(tags -> 'name:br'::text,'') as name
          FROM planet_osm_point
          WHERE
             place IN ('suburb','village','locality','hamlet','quarter','neighbourhood','isolated_dwelling','farm')
             AND COALESCE(tags -> 'name:br'::text) IS NOT NULL
             AND NOT tags @> 'capital=>yes'
          ORDER BY CASE
              WHEN place = 'suburb' THEN 7
              WHEN place = 'village' THEN 6
              WHEN place IN ('locality','hamlet') THEN 5
              WHEN place = 'quarter' THEN 4
              WHEN place = 'neighbourhood' THEN 3
              WHEN place = 'isolated_dwelling' THEN 2
              WHEN place = 'farm' THEN 1
            END DESC) AS placenames_small
    properties:
      cache-features: true
      minzoom: 10
      maxzoom: 17


  - id: motorway_label
    geometry: linestring
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id,
          COALESCE(highway, '') as type,
          COALESCE(tags -> 'name:br'::text,'') as name,
          ref,
          oneway,
          CHAR_LENGTH(ref) AS reflen,
          way
        FROM
          planet_osm_line
        WHERE
          highway IN ('motorway', 'trunk')
          AND (COALESCE(tags -> 'name:br'::text,'') IS NOT NULL OR ref IS NOT NULL)   ) AS motorway_label
    simplify_geometries: 'true'
    properties:
      minzoom: 9


  - id: mainroad_label
    geometry: linestring
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id,
          COALESCE(highway, '') as type,
          COALESCE(tags -> 'name:br'::text,'') as name,
          way
        FROM
          planet_osm_line
        WHERE
          highway IN ('primary', 'secondary', 'tertiary')   ) AS mainroad_label
    simplify_geometries: 'true'
    properties:
      minzoom: 12


  - id: minorroad_label
    geometry: linestring
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
          osm_id,
          COALESCE(highway, '') as type,
          COALESCE(tags -> 'name:br'::text,'') as name,
          way
        FROM
          planet_osm_line
        WHERE
          highway IN ('motorway','motorway_link','trunk','trunk_link','primary','primary_link','secondary','secondary_link','tertiary','tertiary_link','road','path','track','service','footway','bridleway','cycleway','steps','pedestrian','living_street','unclassified','residential','raceway')   ) AS minorroad_label
    simplify_geometries: 'true'
    properties:
      minzoom: 14


  - id: building_label
    geometry: polygon
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
            COALESCE(tags -> 'name:br'::text) as name,
            way,
            way_area/NULLIF(!pixel_width!::real*!pixel_height!::real,0) AS way_pixels
          FROM planet_osm_polygon
          WHERE building IS NOT NULL
            AND building NOT IN ('no')
            AND name IS NOT NULL
          ORDER BY way_area DESC
        ) AS building_text
    properties:
      minzoom: 14


  - id: leisure_label
    geometry: polygon
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
            COALESCE(tags -> 'name:br'::text) as name,
            way,
            way_area/NULLIF(!pixel_width!::real*!pixel_height!::real,0) AS way_pixels
          FROM planet_osm_polygon
          WHERE leisure IN ('park', 'sports_centre', 'stadium', 'pitch')
            AND name IS NOT NULL
          ORDER BY way_area DESC
        ) AS leisure_text
    properties:
      minzoom: 14

  - id: townhall_label
    geometry: polygon
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
            'Ti-Ker' as name,
            way,
            way_area/NULLIF(!pixel_width!::real*!pixel_height!::real,0) AS way_pixels
          FROM planet_osm_polygon
          WHERE amenity IN ('townhall')
            AND name IS NOT NULL
          ORDER BY way_area DESC
        ) AS townhall_text
    properties:
      minzoom: 14

  - id: train_station_label
    geometry: polygon
    <<: *extents
    Datasource:
      <<: *osm2pgsql
      table: |-
        (SELECT
            'Porzh-houarn' as name,
            way,
            way_area/NULLIF(!pixel_width!::real*!pixel_height!::real,0) AS way_pixels
          FROM planet_osm_polygon
          WHERE building IN ('train_station')
            AND name IS NOT NULL
          ORDER BY way_area DESC
        ) AS train_station_text
    properties:
      minzoom: 14