kopia lustrzana https://github.com/openmaptiles/openmaptiles
170 wiersze
6.4 KiB
PL/PgSQL
170 wiersze
6.4 KiB
PL/PgSQL
CREATE OR REPLACE FUNCTION water_class(waterway TEXT) RETURNS TEXT AS $$
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SELECT CASE WHEN waterway='' THEN 'lake' ELSE 'river' END;
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$$ LANGUAGE SQL IMMUTABLE;
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CREATE OR REPLACE VIEW water_z0 AS (
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-- etldoc: ne_110m_ocean -> water_z0
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SELECT geometry, 'ocean'::text AS class FROM ne_110m_ocean
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UNION ALL
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-- etldoc: ne_110m_lakes -> water_z0
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SELECT geometry, 'lake'::text 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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-- etldoc: ne_110m_ocean -> water_z1
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SELECT geometry, 'ocean'::text AS class FROM ne_110m_ocean
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UNION ALL
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-- etldoc: ne_110m_lakes -> water_z1
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SELECT geometry, 'lake'::text 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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-- etldoc: ne_50m_ocean -> water_z2
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SELECT geometry, 'ocean'::text AS class FROM ne_50m_ocean
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UNION ALL
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-- etldoc: ne_50m_lakes -> water_z2
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SELECT geometry, 'lake'::text AS class FROM ne_50m_lakes
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);
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CREATE OR REPLACE VIEW water_z4 AS (
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-- etldoc: ne_50m_ocean -> water_z4
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SELECT geometry, 'ocean'::text AS class FROM ne_50m_ocean
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UNION ALL
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-- etldoc: ne_50m_lakes -> water_z4
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SELECT geometry, 'lake'::text AS class FROM ne_50m_lakes
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);
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CREATE OR REPLACE VIEW water_z5 AS (
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-- etldoc: ne_10m_ocean -> water_z5
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SELECT geometry, 'ocean'::text AS class FROM ne_10m_ocean
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UNION ALL
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-- etldoc: ne_10m_lakes -> water_z5
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SELECT geometry, 'lake'::text AS class FROM ne_10m_lakes
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);
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CREATE OR REPLACE VIEW water_z6 AS (
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-- etldoc: ne_10m_ocean -> water_z6
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SELECT geometry, 'ocean'::text AS class FROM ne_10m_ocean
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UNION ALL
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-- etldoc: ne_10m_lakes -> water_z6
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SELECT geometry, 'lake'::text AS class FROM ne_10m_lakes
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);
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CREATE OR REPLACE VIEW water_z7 AS (
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-- etldoc: ne_10m_ocean -> water_z7
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SELECT geometry, 'ocean'::text AS class FROM ne_10m_ocean
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UNION ALL
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-- etldoc: osm_water_polygon_gen3 -> water_z7
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SELECT geometry, 'lake' AS class FROM osm_water_polygon_gen5
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);
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CREATE OR REPLACE VIEW water_z8 AS (
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-- etldoc: ne_10m_ocean -> water_z8
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SELECT geometry, 'ocean'::text AS class FROM ne_10m_ocean
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UNION ALL
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-- etldoc: osm_water_polygon_gen2 -> water_z8
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SELECT geometry, 'lake' AS class FROM osm_water_polygon_gen4
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);
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CREATE OR REPLACE VIEW water_z9 AS (
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-- etldoc: osm_ocean_polygon_gen3 -> water_z9
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SELECT geometry, 'ocean'::text AS class FROM osm_ocean_polygon_gen3
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UNION ALL
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-- etldoc: osm_water_polygon_gen1 -> water_z9
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SELECT geometry, 'lake'::text AS class FROM osm_water_polygon_gen3
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);
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CREATE OR REPLACE VIEW water_z10 AS (
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-- etldoc: osm_ocean_polygon_gen2 -> water_z10
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SELECT geometry, 'ocean'::text AS class FROM osm_ocean_polygon_gen2
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UNION ALL
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-- etldoc: osm_water_polygon_gen2 -> water_z10
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SELECT geometry, 'lake'::text AS class FROM osm_water_polygon_gen2
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);
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CREATE OR REPLACE VIEW water_z11 AS (
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-- etldoc: osm_ocean_polygon_gen1 -> water_z11
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SELECT geometry, 'ocean'::text AS class FROM osm_ocean_polygon_gen1
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UNION ALL
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-- etldoc: osm_water_polygon -> water_z11
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SELECT geometry, water_class(waterway) AS class FROM osm_water_polygon_gen1 WHERE area > 40000
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);
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CREATE OR REPLACE VIEW water_z12 AS (
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-- etldoc: osm_ocean_polygon_gen1 -> water_z12
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SELECT geometry, 'ocean'::text AS class FROM osm_ocean_polygon
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UNION ALL
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-- etldoc: osm_water_polygon -> water_z12
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SELECT geometry, water_class(waterway) AS class FROM osm_water_polygon WHERE area > 10000
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);
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CREATE OR REPLACE VIEW water_z13 AS (
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-- etldoc: osm_ocean_polygon -> water_z13
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SELECT geometry, 'ocean'::text AS class FROM osm_ocean_polygon
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UNION ALL
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-- etldoc: osm_water_polygon -> water_z13
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SELECT geometry, water_class(waterway) AS class FROM osm_water_polygon WHERE area > 5000
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);
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CREATE OR REPLACE VIEW water_z14 AS (
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-- etldoc: osm_ocean_polygon -> water_z14
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SELECT geometry, 'ocean'::text AS class FROM osm_ocean_polygon
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UNION ALL
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-- etldoc: osm_water_polygon -> water_z14
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SELECT geometry, water_class(waterway) AS class FROM osm_water_polygon
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);
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-- etldoc: layer_water [shape=record fillcolor=lightpink, style="rounded,filled",
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-- etldoc: label="layer_water |<z0> z0|<z1>z1|<z2>z2|<z3>z3 |<z4> z4|<z5>z5|<z6>z6|<z7>z7| <z8> z8 |<z9> z9 |<z10> z10 |<z11> z11 |<z12> z12|<z13> z13|<z14_> z14+" ] ;
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CREATE OR REPLACE FUNCTION layer_water (bbox geometry, zoom_level int)
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RETURNS TABLE(geometry geometry, class text) AS $$
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SELECT geometry, class::text FROM (
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-- etldoc: water_z0 -> layer_water:z0
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SELECT * FROM water_z0 WHERE zoom_level = 0
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UNION ALL
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-- etldoc: water_z1 -> layer_water:z1
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SELECT * FROM water_z1 WHERE zoom_level = 1
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UNION ALL
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-- etldoc: water_z2 -> layer_water:z2
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-- etldoc: water_z2 -> layer_water:z3
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SELECT * FROM water_z2 WHERE zoom_level BETWEEN 2 AND 3
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UNION ALL
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-- etldoc: water_z4 -> layer_water:z4
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SELECT * FROM water_z4 WHERE zoom_level = 4
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UNION ALL
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-- etldoc: water_z5 -> layer_water:z5
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SELECT * FROM water_z5 WHERE zoom_level = 5
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UNION ALL
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-- etldoc: water_z6 -> layer_water:z6
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SELECT * FROM water_z6 WHERE zoom_level = 6
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UNION ALL
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-- etldoc: water_z7 -> layer_water:z7
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SELECT * FROM water_z7 WHERE zoom_level = 7
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UNION ALL
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-- etldoc: water_z8 -> layer_water:z8
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SELECT * FROM water_z8 WHERE zoom_level = 8
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UNION ALL
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-- etldoc: water_z9 -> layer_water:z9
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SELECT * FROM water_z9 WHERE zoom_level = 9
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UNION ALL
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-- etldoc: water_z10 -> layer_water:z10
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SELECT * FROM water_z10 WHERE zoom_level = 10
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UNION ALL
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-- etldoc: water_z11 -> layer_water:z11
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SELECT * FROM water_z11 WHERE zoom_level = 11
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UNION ALL
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-- etldoc: water_z12 -> layer_water:z2
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SELECT * FROM water_z12 WHERE zoom_level = 12
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UNION ALL
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-- etldoc: water_z13 -> layer_water:z13
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SELECT * FROM water_z13 WHERE zoom_level = 13
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UNION ALL
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-- etldoc: water_z14 -> layer_water:z14_
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SELECT * FROM water_z14 WHERE zoom_level >= 14
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) AS zoom_levels
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WHERE geometry && bbox;
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$$ LANGUAGE SQL IMMUTABLE;
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