kopia lustrzana https://github.com/openmaptiles/openmaptiles
Add class attribute to waterway
rodzic
a22e02c6ee
commit
0a8847d6ae
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@ -1,50 +1,50 @@
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CREATE OR REPLACE VIEW waterway_z3 AS (
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SELECT geom, 'river' AS class FROM ne_110m_rivers_lake_centerlines
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SELECT geom AS geometry, '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 waterway_z4 AS (
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SELECT geom, 'river' AS class FROM ne_50m_rivers_lake_centerlines
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SELECT geom AS geometry, '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 waterway_z6 AS (
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SELECT geom, 'river' AS class FROM ne_10m_rivers_lake_centerlines
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SELECT geom AS geometry, '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 OR REPLACE VIEW waterway_z8 AS (
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SELECT geometry AS geom, waterway AS class FROM osm_waterway_linestring
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SELECT geometry, waterway AS class FROM osm_waterway_linestring
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WHERE waterway IN ('river') AND ST_Length(geometry) > 10000
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);
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CREATE OR REPLACE VIEW waterway_z9 AS (
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SELECT geometry AS geom, waterway AS class FROM osm_waterway_linestring
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SELECT geometry, waterway AS class FROM osm_waterway_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 waterway_z11 AS (
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SELECT geometry AS geom, waterway AS class FROM osm_waterway_linestring
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SELECT geometry, waterway AS class FROM osm_waterway_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 waterway_z12 AS (
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SELECT geometry AS geom, waterway AS class FROM osm_waterway_linestring
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SELECT geometry, waterway AS class FROM osm_waterway_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 waterway_z13 AS (
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SELECT geometry AS geom, waterway AS class FROM osm_waterway_linestring
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SELECT geometry, waterway AS class FROM osm_waterway_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 waterway_z14 AS (
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SELECT geometry AS geom, waterway AS class FROM osm_waterway_linestring
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SELECT geometry, waterway AS class FROM osm_waterway_linestring
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);
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CREATE OR REPLACE FUNCTION layer_waterway(bbox geometry, zoom_level int)
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RETURNS TABLE(geom geometry, waterway text) AS $$
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SELECT geom, class FROM (
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RETURNS TABLE(geometry geometry, class text) AS $$
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SELECT geometry, class FROM (
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SELECT * FROM waterway_z3 WHERE zoom_level = 3
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UNION ALL
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SELECT * FROM waterway_z4 WHERE zoom_level BETWEEN 4 AND 5
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@ -63,5 +63,5 @@ RETURNS TABLE(geom geometry, waterway text) AS $$
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UNION ALL
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SELECT * FROM waterway_z14 WHERE zoom_level >= 14
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) AS zoom_levels
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WHERE geom && bbox;
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WHERE geometry && bbox;
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$$ LANGUAGE SQL IMMUTABLE;
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@ -4,6 +4,7 @@ layer:
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OpenStreetMap waterways.
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buffer_size: 4
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datasource:
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geometry_field: geometry
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query: (SELECT * FROM layer_waterway(!bbox!, z(!scale_denominator!))) AS t
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schema:
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- ./waterway.sql
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