Switch water layer to imposm3
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lukasmartinelli
parent
908e6dc68c
commit
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67
layers/water/mapping.yaml
Normal file
67
layers/water/mapping.yaml
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@ -0,0 +1,67 @@
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generalized_tables:
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water_polygon_gen3:
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source: water_polygon
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sql_filter: area>9000000.0
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tolerance: 350.0
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water_polygon_gen2:
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source: water_polygon
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sql_filter: area>1000000
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tolerance: 200.0
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water_polygon_gen1:
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source: water_polygon
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sql_filter: area>500000
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tolerance: 100.0
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tables:
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water_polygon:
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fields:
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- name: osm_id
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type: id
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- name: geometry
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type: validated_geometry
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- name: area
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type: pseudoarea
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- key: name
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name: name
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type: string
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- name: name_en
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key: name:en
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type: string
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filters:
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exclude_tags:
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- [ "covered", "yes" ]
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mapping:
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landuse:
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- reservoir
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natural:
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- water
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- bay
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waterway:
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- river
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- riverbank
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- stream
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- canal
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- drain
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- ditch
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type: polygon
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water_linestring:
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fields:
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- name: osm_id
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type: id
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- name: geometry
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type: geometry
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- name: waterway
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type: mapping_value
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- key: name
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name: name
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type: string
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- name: name_en
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key: name:en
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type: string
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mapping:
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waterway:
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- stream
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- river
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- canal
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- drain
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- ditch
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type: linestring
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@ -1,121 +1,115 @@
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CREATE OR REPLACE VIEW water_z0 AS (
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SELECT geom FROM ne_110m_ocean
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SELECT geom, 'ocean' AS class FROM ne_110m_ocean
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UNION ALL
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SELECT geom FROM ne_110m_lakes
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SELECT geom, 'lake' AS class FROM ne_110m_lakes
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);
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CREATE OR REPLACE VIEW water_z1 AS (
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SELECT geom FROM ne_110m_ocean
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SELECT geom, 'ocean' AS class FROM ne_110m_ocean
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UNION ALL
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SELECT geom FROM ne_110m_lakes
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SELECT geom, 'lake' AS class FROM ne_110m_lakes
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);
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CREATE OR REPLACE VIEW water_z2 AS (
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SELECT geom FROM ne_50m_ocean
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SELECT geom, 'ocean' AS class FROM ne_50m_ocean
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UNION ALL
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SELECT geom FROM ne_110m_lakes
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SELECT geom, 'lake' AS class FROM ne_110m_lakes
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);
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CREATE OR REPLACE VIEW water_z3 AS (
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SELECT geom FROM ne_50m_ocean
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SELECT geom, 'ocean' AS class FROM ne_50m_ocean
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UNION ALL
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SELECT geom FROM ne_110m_lakes
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SELECT geom, 'lake' AS class FROM ne_110m_lakes
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UNION ALL
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SELECT geom FROM ne_110m_rivers_lake_centerlines
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SELECT geom, 'river' AS class FROM ne_110m_rivers_lake_centerlines
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WHERE featurecla = 'River'
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);
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CREATE OR REPLACE VIEW water_z4 AS (
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SELECT geom FROM ne_50m_ocean
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SELECT geom, 'ocean' AS class FROM ne_50m_ocean
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UNION ALL
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SELECT geom FROM ne_50m_lakes
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SELECT geom, 'lake' AS class FROM ne_50m_lakes
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UNION ALL
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SELECT geom FROM ne_50m_rivers_lake_centerlines
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SELECT geom, 'river' AS class FROM ne_50m_rivers_lake_centerlines
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WHERE featurecla = 'River'
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);
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CREATE OR REPLACE VIEW water_z5 AS (
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SELECT geom FROM ne_10m_ocean
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SELECT geom, 'ocean' AS class FROM ne_10m_ocean
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UNION ALL
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SELECT geom FROM ne_10m_lakes
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SELECT geom, 'lake' AS class FROM ne_10m_lakes
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UNION ALL
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SELECT geom FROM ne_50m_rivers_lake_centerlines
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SELECT geom, 'river' AS class FROM ne_50m_rivers_lake_centerlines
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WHERE featurecla = 'River'
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);
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CREATE OR REPLACE VIEW water_z6 AS (
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SELECT geom FROM ne_10m_ocean
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SELECT geom, 'ocean' AS class FROM ne_10m_ocean
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UNION ALL
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SELECT geom FROM ne_10m_lakes
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SELECT geom, 'lake' AS class FROM ne_10m_lakes
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UNION ALL
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SELECT geom FROM ne_10m_rivers_lake_centerlines
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SELECT geom, 'river' AS class FROM ne_10m_rivers_lake_centerlines
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WHERE featurecla = 'River'
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);
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CREATE TABLE IF NOT EXISTS water_z7 AS (
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SELECT geom FROM ne_10m_ocean
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SELECT geom, 'ocean' AS class FROM ne_10m_ocean
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UNION ALL
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SELECT ST_SimplifyPreserveTopology(way, 350) AS geom FROM water_areas
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WHERE way_area > 9000000
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SELECT geometry AS geom, 'lake' AS class FROM osm_water_polygon_gen3
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UNION ALL
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SELECT geom FROM ne_10m_rivers_lake_centerlines
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SELECT geom, 'river' AS class FROM ne_10m_rivers_lake_centerlines
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WHERE featurecla = 'River'
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);
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CREATE INDEX IF NOT EXISTS water_z7_geom_idx ON water_z7 USING gist(geom);
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CREATE TABLE IF NOT EXISTS water_z8 AS (
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SELECT geom FROM ne_10m_ocean
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SELECT geom, 'ocean' AS class FROM ne_10m_ocean
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UNION ALL
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SELECT ST_SimplifyPreserveTopology(way, 200) AS geom FROM water_areas
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WHERE way_area > 1000000
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SELECT geometry AS geom, 'lake' AS class FROM osm_water_polygon_gen2
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UNION ALL
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SELECT ST_Simplify(way, 200) AS geom FROM waterways
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WHERE waterway IN ('river') AND ST_Length(way) > 10000
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SELECT ST_Simplify(geometry, 200) AS geom, waterway AS class FROM osm_water_linestring
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WHERE waterway IN ('river') AND ST_Length(geometry) > 10000
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);
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CREATE INDEX IF NOT EXISTS water_z8_geom_idx ON water_z8 USING gist(geom);
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CREATE TABLE IF NOT EXISTS water_z9 AS (
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SELECT ST_SimplifyPreserveTopology(way, 100) AS geom FROM water_areas
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WHERE way_area > 500000
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SELECT geometry AS geom, 'lake' AS class FROM osm_water_polygon_gen1
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UNION ALL
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SELECT ST_Simplify(way,100) AS geom FROM waterways
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WHERE waterway IN ('river') AND ST_Length(way) > 5000
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SELECT ST_Simplify(geometry, 100) AS geom, waterway AS class FROM osm_water_linestring
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WHERE waterway IN ('river') AND ST_Length(geometry) > 5000
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);
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CREATE INDEX IF NOT EXISTS water_z9_geom_idx ON water_z9 USING gist(geom);
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CREATE OR REPLACE VIEW water_z11 AS (
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SELECT way AS geom FROM water_areas
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WHERE way_area > 50000
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SELECT geometry AS geom, 'lake' AS class FROM osm_water_polygon WHERE area > 40000
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UNION ALL
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SELECT way AS geom FROM waterways
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WHERE waterway IN ('river')
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SELECT geometry AS geom, waterway AS class FROM osm_water_linestring
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WHERE waterway IN ('river') AND ST_Length(geometry) > 5000
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);
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CREATE OR REPLACE VIEW water_z12 AS (
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SELECT way AS geom FROM water_areas
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WHERE way_area > 40000
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SELECT geometry AS geom, 'lake' AS class FROM osm_water_polygon WHERE area > 10000
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UNION ALL
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SELECT way AS geom FROM waterways
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WHERE waterway IN ('river', 'canal', 'stream')
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SELECT geometry AS geom, waterway AS class FROM osm_water_linestring
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WHERE waterway IN ('river', 'canal') OR (waterway = 'stream' AND ST_Length(geometry) > 1000)
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);
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CREATE OR REPLACE VIEW water_z13 AS (
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SELECT way AS geom FROM water_areas
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WHERE way_area > 2000
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SELECT geometry AS geom, 'lake' AS class FROM osm_water_polygon WHERE area > 5000
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UNION ALL
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SELECT way AS geom FROM waterways
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WHERE waterway IN ('river', 'canal', 'stream', 'drain', 'ditch')
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SELECT geometry AS geom, waterway AS class FROM osm_water_linestring
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WHERE waterway IN ('river', 'canal', 'stream', 'drain', 'ditch') AND ST_Length(geometry) > 300
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);
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CREATE OR REPLACE VIEW water_z14 AS (
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SELECT way AS geom FROM water_areas
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SELECT geometry AS geom, 'lake' AS class FROM osm_water_polygon
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UNION ALL
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SELECT way AS geom FROM waterways
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SELECT geometry AS geom, waterway AS class FROM osm_water_linestring
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);
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CREATE OR REPLACE FUNCTION layer_water (bbox geometry, zoom_level int)
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RETURNS TABLE(geom geometry) AS $$
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SELECT geom FROM (
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RETURNS TABLE(geom geometry, class text) AS $$
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SELECT geom, class FROM (
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SELECT * FROM water_z0 WHERE zoom_level = 0
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UNION ALL
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SELECT * FROM water_z1 WHERE zoom_level = 1
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@ -132,9 +126,9 @@ RETURNS TABLE(geom geometry) AS $$
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UNION ALL
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SELECT * FROM water_z7 WHERE zoom_level = 7
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UNION ALL
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SELECT geom FROM water_z8 WHERE zoom_level = 8
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SELECT * FROM water_z8 WHERE zoom_level = 8
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UNION ALL
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SELECT geom FROM water_z9 WHERE zoom_level BETWEEN 9 AND 10
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SELECT * FROM water_z9 WHERE zoom_level BETWEEN 9 AND 10
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UNION ALL
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SELECT * FROM water_z11 WHERE zoom_level = 11
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UNION ALL
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@ -1,8 +1,12 @@
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layer:
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id: "water"
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description: water
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description: |
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Water polygons and linestrings representing oceans, lakes and waterways.
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buffer_size: 4
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datasource:
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query: (SELECT * FROM layer_water(!bbox!, z(!scale_denominator!))) AS t
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schema:
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- ./water.sql
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datasources:
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- type: imposm3
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mapping_file: ./mapping.yaml
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