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Show islands #68

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This commit is contained in:
Lukas Martinelli
2016-12-02 14:37:48 +00:00
parent e7665db266
commit 01db9a4e63
5 changed files with 63 additions and 1 deletions
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20
layers/place/layer.sql
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@@ -5,6 +5,8 @@
-- etldoc: osm_continent_point -> layer_place
-- etldoc: osm_country_point -> layer_place
-- etldoc: osm_state_point -> layer_place
-- etldoc: osm_island_point -> layer_place
-- etldoc: osm_island_polygon -> layer_place
-- etldoc: layer_city -> layer_place
CREATE OR REPLACE FUNCTION layer_place(bbox geometry, zoom_level int, pixel_width numeric)
@@ -17,7 +19,7 @@ RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, class t
UNION ALL
SELECT
osm_id, geometry, name, COALESCE(NULLIF(name_en, ''), name) AS name_en,
'country' AS class,"rank", NULL::int AS capital
'country' AS class, "rank", NULL::int AS capital
FROM osm_country_point
WHERE geometry && bbox AND "rank" <= zoom_level AND name <> ''
UNION ALL
@@ -32,6 +34,22 @@ RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, class t
is_in_country IN ('United Kingdom', 'USA', 'Россия', 'Brasil', 'China', 'India') OR
is_in_country_code IN ('AU', 'CN', 'IN', 'BR', 'US'))
UNION ALL
SELECT
osm_id, geometry, name, COALESCE(NULLIF(name_en, ''), name) AS name_en,
'island' AS class, 7 AS "rank", NULL::int AS capital
FROM osm_island_point
WHERE zoom_level BETWEEN 12 AND 14
AND geometry && bbox
UNION ALL
SELECT
osm_id, geometry, name, COALESCE(NULLIF(name_en, ''), name) AS name_en,
'island' AS class, island_rank(area) AS "rank", NULL::int AS capital
FROM osm_island_polygon
WHERE geometry && bbox AND
((zoom_level = 8 AND island_rank(area) <= 3)
OR (zoom_level = 9 AND island_rank(area) <= 4)
OR (zoom_level >= 10))
UNION ALL
SELECT
osm_id, geometry, name, name_en,
place::text AS class, "rank", capital