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Try to use OSM source data for countries and states

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This commit is contained in:
lukasmartinelli
2016-10-28 15:05:49 +02:00
parent ab80b2212e
commit dccdbdfbcc
7 changed files with 131 additions and 53 deletions
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18
layers/place/city.sql
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@@ -1,25 +1,25 @@
CREATE OR REPLACE FUNCTION layer_city(bbox geometry, zoom_level int, pixel_width numeric)
RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, place text, scalerank int) AS $$
SELECT osm_id, geometry, name, name_en, place::text, scalerank
FROM osm_place_point
RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, class city_class, scalerank int) AS $$
SELECT osm_id, geometry, name, name_en, place, scalerank
FROM osm_city_point
WHERE geometry && bbox
AND ((zoom_level = 2 AND scalerank = 0)
OR (zoom_level BETWEEN 3 AND 7 AND scalerank < zoom_level)
)
UNION ALL
SELECT osm_id, geometry, name, name_en, place::text, scalerank FROM (
SELECT osm_id, geometry, name, name_en, place, scalerank FROM (
SELECT osm_id, geometry, name, name_en, place, scalerank,
row_number() OVER (
PARTITION BY LabelGrid(geometry, 150 * pixel_width)
ORDER BY place::place_subclass ASC NULLS LAST,
ORDER BY place ASC NULLS LAST,
population DESC NULLS LAST,
length(name) DESC
) AS gridrank
FROM osm_place_point
FROM osm_city_point
WHERE geometry && bbox
AND ((zoom_level BETWEEN 8 AND 9 AND place::place_subclass <= 'town'::place_subclass)
OR (zoom_level = 10 AND place::place_subclass <= 'village'::place_subclass)
OR (zoom_level BETWEEN 11 AND 13 AND place::place_subclass <= 'suburb'::place_subclass)
AND ((zoom_level BETWEEN 8 AND 9 AND place <= 'town'::city_class)
OR (zoom_level = 10 AND place <= 'village'::city_class)
OR (zoom_level BETWEEN 11 AND 13 AND place <= 'suburb'::city_class)
OR (zoom_level >= 14)
)
) AS ranked_places