kopia lustrzana https://github.com/openmaptiles/openmaptiles
68 wiersze
3.0 KiB
PL/PgSQL
68 wiersze
3.0 KiB
PL/PgSQL
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-- etldoc: layer_transportation_name[shape=record fillcolor=lightpink, style="rounded,filled",
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-- etldoc: label="layer_transportation_name | <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_transportation_name(bbox geometry, zoom_level integer)
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RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, name_de text, tags hstore, ref text, ref_length int, network text, class text) AS $$
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SELECT osm_id, geometry,
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NULLIF(name, '') AS name,
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COALESCE(NULLIF(name_en, ''), name) AS name_en,
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COALESCE(NULLIF(name_de, ''), name, name_en) AS name_de,
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tags,
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NULLIF(ref, ''), NULLIF(LENGTH(ref), 0) AS ref_length,
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--TODO: The road network of the road is not yet implemented
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case
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when network is not null
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then network::text
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when length(coalesce(ref, ''))>0
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then 'road'
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end as network,
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highway_class(highway) AS class
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FROM (
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-- etldoc: osm_transportation_name_linestring_gen4 -> layer_transportation_name:z6
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SELECT * FROM osm_transportation_name_linestring_gen4
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WHERE zoom_level = 6
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UNION ALL
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-- etldoc: osm_transportation_name_linestring_gen3 -> layer_transportation_name:z7
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SELECT * FROM osm_transportation_name_linestring_gen3
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WHERE zoom_level = 7
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UNION ALL
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-- etldoc: osm_transportation_name_linestring_gen2 -> layer_transportation_name:z8
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SELECT * FROM osm_transportation_name_linestring_gen2
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WHERE zoom_level = 8
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UNION ALL
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-- etldoc: osm_transportation_name_linestring_gen1 -> layer_transportation_name:z9
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-- etldoc: osm_transportation_name_linestring_gen1 -> layer_transportation_name:z10
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-- etldoc: osm_transportation_name_linestring_gen1 -> layer_transportation_name:z11
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SELECT * FROM osm_transportation_name_linestring_gen1
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WHERE zoom_level BETWEEN 9 AND 11
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UNION ALL
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-- etldoc: osm_transportation_name_linestring -> layer_transportation_name:z12
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SELECT * FROM osm_transportation_name_linestring
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WHERE zoom_level = 12
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AND LineLabel(zoom_level, COALESCE(NULLIF(name, ''), ref), geometry)
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AND highway_class(highway) NOT IN ('minor', 'track', 'path')
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AND NOT highway_is_link(highway)
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UNION ALL
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-- etldoc: osm_transportation_name_linestring -> layer_transportation_name:z13
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SELECT * FROM osm_transportation_name_linestring
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WHERE zoom_level = 13
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AND LineLabel(zoom_level, COALESCE(NULLIF(name, ''), ref), geometry)
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AND highway_class(highway) NOT IN ('track', 'path')
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UNION ALL
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-- etldoc: osm_transportation_name_linestring -> layer_transportation_name:z14_
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SELECT * FROM osm_transportation_name_linestring
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WHERE zoom_level >= 14
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) AS zoom_levels
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WHERE geometry && bbox
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ORDER BY z_order ASC;
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$$ LANGUAGE SQL IMMUTABLE;
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