kopia lustrzana https://github.com/openmaptiles/openmaptiles
Fix z7-z4 roads (#1656)
Some US roads were not included in tiles, because the `ST_AsMVTGeom` did not transform geometry (result was NULL). This PR is trying to fix the geometry for `ST_AsMVTGeom`, even if the geometry is marked as valid (`ST_IsValid`). The odd geometry was caused by simplification when it could create `LINESTRING(1 1, 2 2, 1 1)` linestring, which in some cases was not converted into MVT. Also, for the US (on zoom 4) keeps just the network `us-interstate` and the `highway=motorway` or `osm_national_network(network)` for the rest of the world.pull/1438/merge
rodzic
eae7d7e1ed
commit
e6faa69a70
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@ -465,7 +465,7 @@ CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen_z9_geometry_i
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-- etldoc: osm_transportation_merge_linestring_gen_z9 -> osm_transportation_merge_linestring_gen_z8
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CREATE TABLE IF NOT EXISTS osm_transportation_merge_linestring_gen_z8(
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geometry geometry('LineString'),
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geometry geometry,
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id SERIAL,
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osm_id bigint,
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source_ids int[],
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@ -684,25 +684,68 @@ BEGIN
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-- etldoc: osm_transportation_merge_linestring_gen_z8 -> osm_transportation_merge_linestring_gen_z7
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INSERT INTO osm_transportation_merge_linestring_gen_z7
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SELECT ST_Simplify(geometry, ZRes(9)) AS geometry,
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id,
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osm_id,
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highway,
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network,
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construction,
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-- Remove bridge/tunnel/ford attributes from short sections of road so they can be merged
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visible_brunnel(geometry, is_bridge, 8) AS is_bridge,
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visible_brunnel(geometry, is_tunnel, 8) AS is_tunnel,
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visible_brunnel(geometry, is_ford, 8) AS is_ford,
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expressway,
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z_order
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FROM osm_transportation_merge_linestring_gen_z8
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WITH roads_z8 AS (
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SELECT id,
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osm_id,
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ST_SnapToGrid(
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ST_Node(
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ST_Collect(
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ST_Simplify(geometry, ZRes(9))
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)
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), ZRes(9)
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) AS geometry,
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highway,
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NULLIF(network, '') as network,
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construction,
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is_bridge,
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is_tunnel,
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is_ford,
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expressway,
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z_order
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FROM osm_transportation_merge_linestring_gen_z8
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GROUP BY id, osm_id, highway, construction, network, is_bridge, is_tunnel, is_ford, expressway, z_order
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),
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roads_z8_merge AS (
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SELECT id,
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osm_id,
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ST_LineMerge(
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ST_Union(geometry)
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) AS geometry,
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highway,
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network,
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construction,
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is_bridge,
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is_tunnel,
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is_ford,
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expressway,
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z_order
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FROM roads_z8
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GROUP BY id, osm_id, highway, network, construction, is_bridge, is_tunnel, is_ford, expressway, z_order
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)
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SELECT CASE
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WHEN ST_StartPoint(geometry) = ST_EndPoint(geometry)
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THEN ST_RemovePoint(geometry, ST_NPoints(geometry) - 1)
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ELSE geometry
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END AS geometry,
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id,
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osm_id,
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highway,
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network,
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construction,
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-- Remove bridge/tunnel/ford attributes from short sections of road so they can be merged
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visible_brunnel(geometry, is_bridge, 8) AS is_bridge,
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visible_brunnel(geometry, is_tunnel, 8) AS is_tunnel,
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visible_brunnel(geometry, is_ford, 8) AS is_ford,
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expressway,
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z_order
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FROM roads_z8_merge
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-- Current view: motorway/trunk/primary
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WHERE
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(full_update IS TRUE OR EXISTS(
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SELECT NULL FROM transportation.changes_z4_z5_z6_z7
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WHERE transportation.changes_z4_z5_z6_z7.is_old IS FALSE AND
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transportation.changes_z4_z5_z6_z7.id = osm_transportation_merge_linestring_gen_z8.id
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transportation.changes_z4_z5_z6_z7.id = roads_z8_merge.id
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)) AND
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(ST_Length(geometry) > 50)
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ON CONFLICT (id) DO UPDATE SET osm_id = excluded.osm_id, highway = excluded.highway, network = excluded.network,
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@ -825,10 +868,12 @@ BEGIN
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WHERE transportation.changes_z4_z5_z6_z7.is_old IS FALSE AND
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transportation.changes_z4_z5_z6_z7.id = osm_transportation_merge_linestring_gen_z5.id
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)) AND
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(highway = 'motorway' OR construction = 'motorway'
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-- All motorways without network (e.g. EU, Asia, South America)
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((highway = 'motorway' OR construction = 'motorway') AND (network is NULL or network = '')
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) OR
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(osm_national_network(network) AND network != 'gb-trunk'
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) AND
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-- All roads in network included in osm_national_network except gb-trunk and us-highway
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( (osm_national_network(network) AND network NOT IN ('gb-trunk', 'us-highway')
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)) AND
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-- Current view: national-importance motorways and trunks
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ST_Length(geometry) > 1000
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ON CONFLICT (id) DO UPDATE SET osm_id = excluded.osm_id, highway = excluded.highway, network = excluded.network,
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