diff --git a/layers/highway_name/highway_name.yaml b/layers/highway_name/highway_name.yaml index 928a2bc..da2bef9 100644 --- a/layers/highway_name/highway_name.yaml +++ b/layers/highway_name/highway_name.yaml @@ -10,7 +10,7 @@ layer: datasource: geometry_field: geometry srid: 900913 - query: (SELECT osm_id, geometry, name, class::text, subclass FROM layer_highway_name(!bbox!, z(!scale_denominator!))) AS t + query: (SELECT osm_id, geometry, name, ref, class::text, subclass FROM layer_highway_name(!bbox!, z(!scale_denominator!))) AS t schema: - ./merge_highways.sql - ./layer.sql diff --git a/layers/highway_name/layer.sql b/layers/highway_name/layer.sql index 978377a..00610c1 100644 --- a/layers/highway_name/layer.sql +++ b/layers/highway_name/layer.sql @@ -1,15 +1,27 @@ CREATE OR REPLACE FUNCTION layer_highway_name(bbox geometry, zoom_level integer) -RETURNS TABLE(osm_id bigint, geometry geometry, name text, class highway_class, subclass text) AS $$ - SELECT osm_id, geometry, name, to_highway_class(highway) AS class, highway AS subclass FROM ( - SELECT * FROM osm_highway_name_linestring - WHERE zoom_level = 12 AND to_highway_class(highway) < 'minor_road'::highway_class AND NOT highway_is_link(highway) +RETURNS TABLE(osm_id bigint, geometry geometry, name text, ref text, class highway_class, subclass text) AS $$ + SELECT osm_id, geometry, name, ref, to_highway_class(highway) AS class, highway AS subclass FROM ( + SELECT * FROM osm_highway_name_linestring_gen3 + WHERE zoom_level = 8 + UNION ALL + SELECT * FROM osm_highway_name_linestring_gen2 + WHERE zoom_level = 9 + UNION ALL + SELECT * FROM osm_highway_name_linestring_gen1 + WHERE zoom_level BETWEEN 10 AND 11 UNION ALL SELECT * FROM osm_highway_name_linestring - WHERE zoom_level = 13 AND to_highway_class(highway) < 'path'::highway_class + WHERE zoom_level = 12 + AND to_highway_class(highway) < 'minor_road'::highway_class + AND NOT highway_is_link(highway) + UNION ALL + SELECT * FROM osm_highway_name_linestring + WHERE zoom_level = 13 + AND to_highway_class(highway) < 'path'::highway_class UNION ALL SELECT * FROM osm_highway_name_linestring WHERE zoom_level >= 14 ) AS zoom_levels - WHERE geometry && bbox + WHERE geometry && bbox AND LineLabel(zoom_level, COALESCE(NULLIF(name, ''), ref), geometry) ORDER BY z_order ASC; $$ LANGUAGE SQL IMMUTABLE; diff --git a/layers/highway_name/merge_highways.sql b/layers/highway_name/merge_highways.sql index ed64722..0f03c29 100644 --- a/layers/highway_name/merge_highways.sql +++ b/layers/highway_name/merge_highways.sql @@ -10,20 +10,43 @@ CREATE TABLE IF NOT EXISTS osm_highway_name_linestring AS ( member_osm_ids[0] AS osm_id, member_osm_ids, name, + ref, highway, z_order FROM ( SELECT ST_LineMerge(ST_Union(geometry)) AS geometry, name, + ref, highway, min(z_order) AS z_order, array_agg(DISTINCT osm_id) AS member_osm_ids FROM osm_highway_linestring -- We only care about roads for labelling - WHERE name <> '' - GROUP BY name, highway + WHERE name <> '' OR ref <> '' + GROUP BY name, highway, ref ) AS highway_union ); -CREATE INDEX IF NOT EXISTS osm_highway_name_linestring_geometry_idx ON osm_important_place_point USING gist(geometry); +CREATE INDEX IF NOT EXISTS osm_highway_name_linestring_geometry_idx ON osm_highway_name_linestring USING gist(geometry); + +CREATE TABLE IF NOT EXISTS osm_highway_name_linestring_gen1 AS ( + SELECT ST_Simplify(geometry, 50) AS geometry, osm_id, member_osm_ids, name, ref, highway, z_order + FROM osm_highway_name_linestring + WHERE highway IN ('motorway','trunk') AND ST_Length(geometry) > 8000 +); +CREATE INDEX IF NOT EXISTS osm_highway_name_linestring_gen1_geometry_idx ON osm_highway_name_linestring_gen1 USING gist(geometry); + +CREATE TABLE IF NOT EXISTS osm_highway_name_linestring_gen2 AS ( + SELECT ST_Simplify(geometry, 120) AS geometry, osm_id, member_osm_ids, name, ref, highway, z_order + FROM osm_highway_name_linestring_gen1 + WHERE highway IN ('motorway','trunk') AND ST_Length(geometry) > 14000 +); +CREATE INDEX IF NOT EXISTS osm_highway_name_linestring_gen2_geometry_idx ON osm_highway_name_linestring_gen2 USING gist(geometry); + +CREATE TABLE IF NOT EXISTS osm_highway_name_linestring_gen3 AS ( + SELECT ST_Simplify(geometry, 120) AS geometry, osm_id, member_osm_ids, name, ref, highway, z_order + FROM osm_highway_name_linestring_gen2 + WHERE highway = 'motorway' AND ST_Length(geometry) > 20000 +); +CREATE INDEX IF NOT EXISTS osm_highway_name_linestring_gen3_geometry_idx ON osm_highway_name_linestring_gen3 USING gist(geometry);