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Generalize roads more at zoom levels 4 -- 6

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jirik
2017-03-27 22:14:38 +02:00
committed by Jiri Kozel
parent 74d8a2da1f
commit cfc65c6884
3 changed files with 94 additions and 4 deletions
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8
layers/transportation/layer.sql
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@@ -20,25 +20,25 @@ RETURNS TABLE(osm_id bigint, geometry geometry, class text, ramp int, oneway int
brunnel(is_bridge, is_tunnel, is_ford) AS brunnel,
NULLIF(service, '') AS service
FROM (
-- etldoc: osm_highway_linestring_gen6 -> layer_transportation:z4
-- etldoc: osm_transportation_merge_linestring_gen6 -> layer_transportation:z4
SELECT
osm_id, geometry, highway, NULL AS railway, NULL AS service,
NULL::boolean AS is_bridge, NULL::boolean AS is_tunnel,
NULL::boolean AS is_ford,
NULL::boolean AS is_ramp, NULL::boolean AS is_oneway,
z_order
FROM osm_highway_linestring_gen6
FROM osm_transportation_merge_linestring_gen6
WHERE zoom_level = 4
UNION ALL
-- etldoc: osm_highway_linestring_gen5 -> layer_transportation:z5z6
-- etldoc: osm_transportation_merge_linestring_gen5 -> layer_transportation:z5z6
SELECT
osm_id, geometry, highway, NULL AS railway, NULL AS service,
NULL::boolean AS is_bridge, NULL::boolean AS is_tunnel,
NULL::boolean AS is_ford,
NULL::boolean AS is_ramp, NULL::boolean AS is_oneway,
z_order
FROM osm_highway_linestring_gen5
FROM osm_transportation_merge_linestring_gen5
WHERE zoom_level BETWEEN 5 AND 6
UNION ALL