From 09dddebac412eb3c24e3539078091432c37eb971 Mon Sep 17 00:00:00 2001 From: Lukas Martinelli Date: Mon, 28 Nov 2016 19:16:27 +0000 Subject: [PATCH] Add park layer --- layers/park/class.sql | 7 ++++ layers/park/layer.sql | 46 +++++++++++++++++++++++++++ layers/park/mapping.yaml | 69 ++++++++++++++++++++++++++++++++++++++++ layers/park/park.yaml | 22 +++++++++++++ openmaptiles.yaml | 1 + 5 files changed, 145 insertions(+) create mode 100644 layers/park/class.sql create mode 100644 layers/park/layer.sql create mode 100644 layers/park/mapping.yaml create mode 100644 layers/park/park.yaml diff --git a/layers/park/class.sql b/layers/park/class.sql new file mode 100644 index 00000000..2b2837f8 --- /dev/null +++ b/layers/park/class.sql @@ -0,0 +1,7 @@ +CREATE OR REPLACE FUNCTION park_class(landuse TEXT, leisure TEXT, boundary TEXT) RETURNS TEXT AS $$ + SELECT CASE + WHEN leisure = 'nature_reserve' OR boundary='national_park' THEN 'national_park' + WHEN landuse IN ('recreation_ground', 'village_green') or leisure = 'park' THEN 'public_park' + ELSE NULL + END; +$$ LANGUAGE SQL IMMUTABLE; diff --git a/layers/park/layer.sql b/layers/park/layer.sql new file mode 100644 index 00000000..cb8ac252 --- /dev/null +++ b/layers/park/layer.sql @@ -0,0 +1,46 @@ +-- etldoc: layer_park[shape=record fillcolor=lightpink, style="rounded,filled", +-- etldoc: label="layer_park | z8 | z9 | z10 | z11 | z12| z13| z14_" ] ; + +CREATE OR REPLACE FUNCTION layer_park(bbox geometry, zoom_level int) +RETURNS TABLE(osm_id bigint, geometry geometry, class text, subclass text) AS $$ + SELECT osm_id, geometry, + park_class(landuse, leisure, boundary) AS class, + COALESCE(NULLIF(landuse, ''), NULLIF(leisure, ''), NULLIF(boundary, '')) AS subclass + FROM ( + -- etldoc: osm_park_polygon_gen6 -> layer_park:z8 + SELECT osm_id, geometry, landuse, leisure, boundary, NULL::int as scalerank + FROM osm_park_polygon_gen6 + WHERE zoom_level = 8 + UNION ALL + -- etldoc: osm_park_polygon_gen5 -> layer_park:z9 + SELECT osm_id, geometry, landuse, leisure, boundary, NULL::int as scalerank + FROM osm_park_polygon_gen5 + WHERE zoom_level = 9 + UNION ALL + -- etldoc: osm_park_polygon_gen4 -> layer_park:z10 + SELECT osm_id, geometry, landuse, leisure, boundary, NULL::int as scalerank + FROM osm_park_polygon_gen4 + WHERE zoom_level = 10 + UNION ALL + -- etldoc: osm_park_polygon_gen3 -> layer_park:z11 + SELECT osm_id, geometry, landuse, leisure, boundary, NULL::int as scalerank + FROM osm_park_polygon_gen3 + WHERE zoom_level = 11 + UNION ALL + -- etldoc: osm_park_polygon_gen2 -> layer_park:z12 + SELECT osm_id, geometry, landuse, leisure, boundary, NULL::int as scalerank + FROM osm_park_polygon_gen2 + WHERE zoom_level = 12 + UNION ALL + -- etldoc: osm_park_polygon_gen1 -> layer_park:z13 + SELECT osm_id, geometry, landuse, leisure, boundary, NULL::int as scalerank + FROM osm_park_polygon_gen1 + WHERE zoom_level = 13 + UNION ALL + -- etldoc: osm_park_polygon -> layer_park:z14 + SELECT osm_id, geometry, landuse, leisure, boundary, NULL::int as scalerank + FROM osm_park_polygon + WHERE zoom_level >= 14 + ) AS zoom_levels + WHERE geometry && bbox; +$$ LANGUAGE SQL IMMUTABLE; diff --git a/layers/park/mapping.yaml b/layers/park/mapping.yaml new file mode 100644 index 00000000..167e98b4 --- /dev/null +++ b/layers/park/mapping.yaml @@ -0,0 +1,69 @@ +generalized_tables: + + # etldoc: imposm3 -> osm_park_polygon_gen6 + park_polygon_gen6: + source: park_polygon_gen5 + sql_filter: area>15000000 + tolerance: 300.0 + + # etldoc: imposm3 -> osm_park_polygon_gen5 + park_polygon_gen5: + source: park_polygon_gen4 + sql_filter: area>4200000 + tolerance: 200.0 + + # etldoc: imposm3 -> osm_park_polygon_gen4 + park_polygon_gen4: + source: park_polygon_gen3 + sql_filter: area>1200000 + tolerance: 120.0 + + # etldoc: imposm3 -> osm_park_polygon_gen3 + park_polygon_gen3: + source: park_polygon_gen2 + sql_filter: area>480000 + tolerance: 80.0 + + # etldoc: imposm3 -> osm_park_polygon_gen2 + park_polygon_gen2: + source: park_polygon_gen1 + sql_filter: area>240000 + tolerance: 50.0 + + # etldoc: imposm3 -> osm_park_polygon_gen1 + park_polygon_gen1: + source: park_polygon + sql_filter: area>60000 + tolerance: 20.0 + +tables: + + # etldoc: imposm3 -> osm_park_polygon + park_polygon: + type: polygon + fields: + - name: osm_id + type: id + - name: geometry + type: validated_geometry + - name: landuse + key: landuse + type: string + - name: leisure + key: leisure + type: string + - name: boundary + key: boundary + type: string + - name: area + type: pseudoarea + mapping: + landuse: + - park + - village_green + - recreation_ground + leisure: + - nature_reserve + - park + boundary: + - national_park diff --git a/layers/park/park.yaml b/layers/park/park.yaml new file mode 100644 index 00000000..575f83a7 --- /dev/null +++ b/layers/park/park.yaml @@ -0,0 +1,22 @@ +layer: + id: "park" + description: | + Landuse is used to describe use of land by humans.At lower zoom levels this is + from Natural Earth data for residential (urban) areas and at higher zoom levels mostly OSM `landuse` tags. + buffer_size: 4 + fields: + class: | + More generalized groups of either `park`, `school`, `hospital`, `railway`, + `cemetery`, `military`, `residential`. Use this to assign general for landuse. + subclass: | + Original value of either the `amenity`, `landuse`, `leisure` or `boundary` tag. + Use this to do more precise styling. + datasource: + geometry_field: geometry + query: (SELECT geometry, class, subclass FROM layer_park(!bbox!, z(!scale_denominator!))) AS t +schema: + - ./class.sql + - ./layer.sql +datasources: + - type: imposm3 + mapping_file: ./mapping.yaml diff --git a/openmaptiles.yaml b/openmaptiles.yaml index 0ab01265..5944289a 100644 --- a/openmaptiles.yaml +++ b/openmaptiles.yaml @@ -12,6 +12,7 @@ tileset: - layers/water/water.yaml - layers/waterway/waterway.yaml - layers/landcover/landcover.yaml + - layers/park/park.yaml - layers/landuse/landuse.yaml name: OpenMapTiles v1.0 description: "A tileset showcasing all layers in OpenMapTiles. http://openmaptiles.org"