From bbe4e67c14efe2e3f20e0e9abac2e9e3e9eaea3a Mon Sep 17 00:00:00 2001 From: jirik Date: Wed, 29 Mar 2017 16:55:16 +0200 Subject: [PATCH] Decrease length limit of roads at zoom level 4 -- 6 --- layers/transportation/merge_highways.sql | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/layers/transportation/merge_highways.sql b/layers/transportation/merge_highways.sql index 52dde40..ce119f4 100644 --- a/layers/transportation/merge_highways.sql +++ b/layers/transportation/merge_highways.sql @@ -49,7 +49,7 @@ CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_highway_partial_i CREATE MATERIALIZED VIEW osm_transportation_merge_linestring_gen5 AS ( SELECT ST_Simplify(geometry, 500) AS geometry, osm_id, highway, z_order FROM osm_transportation_merge_linestring - WHERE highway IN ('motorway','trunk') AND ST_Length(geometry) > 20000 + WHERE highway IN ('motorway','trunk') AND ST_Length(geometry) > 100 ); CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen5_geometry_idx ON osm_transportation_merge_linestring_gen5 USING gist(geometry); -- Improve performance of the sql below @@ -61,7 +61,7 @@ CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen5_highway_part CREATE MATERIALIZED VIEW osm_transportation_merge_linestring_gen6 AS ( SELECT ST_Simplify(geometry, 2000) AS geometry, osm_id, highway, z_order FROM osm_transportation_merge_linestring_gen5 - WHERE highway IN ('motorway') AND ST_Length(geometry) > 20000 + WHERE highway IN ('motorway') AND ST_Length(geometry) > 1000 ); CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen6_geometry_idx ON osm_transportation_merge_linestring_gen6 USING gist(geometry);