Add imposm3 mapping for boundary
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lukasmartinelli
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28fedcc021
@ -12,60 +12,60 @@ END;
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$$ LANGUAGE plpgsql IMMUTABLE;
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CREATE OR REPLACE VIEW boundary_z0 AS (
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SELECT geom, 0 AS admin_level, scalerank,
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SELECT geom, 2 AS admin_level, scalerank,
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boundary_class(featurecla) AS class
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FROM ne_110m_admin_0_boundary_lines_land
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);
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CREATE OR REPLACE VIEW boundary_z1 AS (
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SELECT geom, 0 AS admin_level, scalerank,
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SELECT geom, 2 AS admin_level, scalerank,
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boundary_class(featurecla) AS class
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FROM ne_50m_admin_0_boundary_lines_land
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UNION ALL
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SELECT geom, 1 AS admin_level, scalerank,
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SELECT geom, 4 AS admin_level, scalerank,
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boundary_class(featurecla) AS class
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FROM ne_50m_admin_1_states_provinces_lines
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WHERE scalerank <= 2
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);
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CREATE OR REPLACE VIEW boundary_z3 AS (
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SELECT geom, 0 AS admin_level, scalerank,
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SELECT geom, 2 AS admin_level, scalerank,
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boundary_class(featurecla) AS class
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FROM ne_50m_admin_0_boundary_lines_land
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UNION ALL
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SELECT geom, 1 AS admin_level, scalerank,
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SELECT geom, 4 AS admin_level, scalerank,
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boundary_class(featurecla) AS class
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FROM ne_50m_admin_1_states_provinces_lines
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);
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CREATE OR REPLACE VIEW boundary_z4 AS (
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SELECT geom, 0 AS admin_level, scalerank,
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SELECT geom, 2 AS admin_level, scalerank,
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boundary_class(featurecla) AS class
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FROM ne_10m_admin_0_boundary_lines_land
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UNION ALL
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SELECT geom, 1 AS admin_level, scalerank,
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SELECT geom, 4 AS admin_level, scalerank,
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boundary_class(featurecla) AS class
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FROM ne_10m_admin_1_states_provinces_lines_shp
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WHERE scalerank <= 3 AND featurecla = 'Adm-1 boundary'
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);
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CREATE OR REPLACE VIEW boundary_z5 AS (
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SELECT geom, 0 AS admin_level, scalerank,
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SELECT geom, 2 AS admin_level, scalerank,
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boundary_class(featurecla) AS class
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FROM ne_10m_admin_0_boundary_lines_land
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UNION ALL
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SELECT geom, 1 AS admin_level, scalerank,
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SELECT geom, 4 AS admin_level, scalerank,
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boundary_class(featurecla) AS class
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FROM ne_10m_admin_1_states_provinces_lines_shp
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WHERE scalerank <= 7 AND featurecla = 'Adm-1 boundary'
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);
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CREATE OR REPLACE VIEW boundary_z7 AS (
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SELECT geom, 0 AS admin_level, scalerank,
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SELECT geom, 2 AS admin_level, scalerank,
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boundary_class(featurecla) AS class
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FROM ne_10m_admin_0_boundary_lines_land
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UNION ALL
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SELECT geom, 1 AS admin_level, scalerank,
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SELECT geom, 4 AS admin_level, scalerank,
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boundary_class(featurecla) AS class
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FROM ne_10m_admin_1_states_provinces_lines_shp
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WHERE featurecla = 'Adm-1 boundary'
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@ -73,30 +73,37 @@ CREATE OR REPLACE VIEW boundary_z7 AS (
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);
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CREATE OR REPLACE VIEW boundary_z8 AS (
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SELECT way AS geom, level AS admin_level,
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SELECT geometry AS geom, admin_level,
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NULL AS scalerank, NULL AS class
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FROM admin_line
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WHERE level <= 4 AND ST_Length(way) > 10000
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FROM osm_boundary_linestring_gen5
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WHERE admin_level <= 4 AND ST_Length(geometry) > 1000
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);
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CREATE OR REPLACE VIEW boundary_z9 AS (
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SELECT geometry AS geom, admin_level,
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NULL AS scalerank, NULL AS class
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FROM osm_boundary_linestring_gen4
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WHERE admin_level <= 6
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);
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CREATE OR REPLACE VIEW boundary_z10 AS (
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SELECT way AS geom, level AS admin_level,
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SELECT geometry AS geom, admin_level,
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NULL AS scalerank, NULL AS class
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FROM admin_line
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WHERE level <= 6
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FROM osm_boundary_linestring_gen3
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WHERE admin_level <= 6
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);
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CREATE OR REPLACE VIEW boundary_z11 AS (
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SELECT way AS geom, level AS admin_level,
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SELECT geometry AS geom, admin_level,
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NULL AS scalerank, NULL AS class
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FROM admin_line
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WHERE level <= 8
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FROM osm_boundary_linestring_gen2
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WHERE admin_level <= 8
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);
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CREATE OR REPLACE VIEW boundary_z12 AS (
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SELECT way AS geom, level AS admin_level,
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SELECT geometry AS geom, admin_level,
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NULL AS scalerank, NULL AS class
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FROM admin_line
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FROM osm_boundary_linestring_gen1
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);
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CREATE OR REPLACE FUNCTION layer_boundary (bbox geometry, zoom_level int)
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@ -114,22 +121,16 @@ RETURNS TABLE(geom geometry, admin_level int, scalerank int, class text) AS $$
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UNION ALL
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SELECT * FROM boundary_z7 WHERE geom && bbox AND zoom_level = 7
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UNION ALL
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SELECT ST_Simplify(geom, 400) AS geom, admin_level, scalerank, class
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FROM boundary_z8 WHERE geom && bbox AND zoom_level = 8
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SELECT * FROM boundary_z8 WHERE geom && bbox AND zoom_level = 8
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UNION ALL
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SELECT ST_Simplify(geom, 320) AS geom, admin_level, scalerank, class
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FROM boundary_z8 WHERE geom && bbox AND zoom_level = 9
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SELECT * FROM boundary_z9 WHERE geom && bbox AND zoom_level = 9
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UNION ALL
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SELECT ST_Simplify(geom, 150) AS geom, admin_level, scalerank, class
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FROM boundary_z10 WHERE geom && bbox AND zoom_level = 10
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SELECT * FROM boundary_z10 WHERE geom && bbox AND zoom_level = 10
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UNION ALL
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SELECT ST_Simplify(geom, 100) AS geom, admin_level, scalerank, class
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FROM boundary_z11 WHERE geom && bbox AND zoom_level = 11
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SELECT * FROM boundary_z11 WHERE geom && bbox AND zoom_level = 11
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UNION ALL
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SELECT ST_Simplify(geom, 50) AS geom, admin_level, scalerank, class
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FROM boundary_z12 WHERE geom && bbox AND zoom_level = 12
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SELECT * FROM boundary_z12 WHERE geom && bbox AND zoom_level = 12
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UNION ALL
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SELECT geom, admin_level, scalerank, class
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FROM boundary_z12 WHERE geom && bbox AND zoom_level >= 13
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SELECT * FROM boundary_z12 WHERE geom && bbox AND zoom_level >= 13
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) AS zoom_levels;
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$$ LANGUAGE SQL IMMUTABLE;
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@ -1,12 +1,19 @@
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layer:
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id: "boundary"
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description: Buildings
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description: |
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Contains [administrative boundaries](http://wiki.openstreetmap.org/wiki/Tag:boundary%3Dadministrative)
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(no maritime boundaries yet).
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Until z7 Natural Earth data is used which switches to OSM boundaries after z8.
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buffer_size: 4
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fields:
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admin_level: Number
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class: String
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scalerank: Number
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admin_level: |
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OSM [admin_level](http://wiki.openstreetmap.org/wiki/Tag:boundary%3Dadministrative#admin_level)
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indicating the level of importance of this boundary.
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At low zoom levels the Natural Earth boundaries are mapped to the equivalent admin levels.
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datasource:
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query: (SELECT * FROM layer_boundary(!bbox!, z(!scale_denominator!))) AS t
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schema:
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- ./boundary.sql
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datasources:
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- type: imposm3
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mapping_file: ./mapping.yaml
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34
layers/boundary/mapping.yaml
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34
layers/boundary/mapping.yaml
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@ -0,0 +1,34 @@
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generalized_tables:
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boundary_linestring_gen5:
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source: boundary_linestring
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tolerance: 420.0
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boundary_linestring_gen4:
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source: boundary_linestring
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tolerance: 320.0
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boundary_linestring_gen3:
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source: boundary_linestring
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tolerance: 150.0
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boundary_linestring_gen2:
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source: boundary_linestring
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tolerance: 100.0
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boundary_linestring_gen1:
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source: boundary_linestring
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tolerance: 50.0
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tables:
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boundary_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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- key: admin_level
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name: admin_level
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type: integer
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filters:
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exclude_tags:
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- [ "admin_level", "__nil__" ]
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- [ "natural", "coastline" ]
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mapping:
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boundary:
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- administrative
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type: linestring
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