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Remove park_label layer, add labels to park layer

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jirik
2018-11-07 18:18:11 +01:00
committed by Jiri Kozel
parent 765d6fbc76
commit cd920755bf
9 changed files with 90 additions and 119 deletions
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98
layers/park/layer.sql
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@@ -1,55 +1,127 @@
-- etldoc: layer_park[shape=record fillcolor=lightpink, style="rounded,filled",
-- etldoc: label="layer_park |<z6> z6 |<z7> z7 |<z8> z8 |<z9> z9 |<z10> z10 |<z11> z11 |<z12> z12|<z13> z13|<z14> z14+" ] ;
CREATE OR REPLACE FUNCTION layer_park(bbox geometry, zoom_level int)
RETURNS TABLE(osm_id bigint, geometry geometry, class text) AS $$
CREATE OR REPLACE FUNCTION layer_park(bbox geometry, zoom_level int, pixel_width numeric)
RETURNS TABLE(osm_id bigint, geometry geometry, class text, name text, name_en text, name_de text, tags hstore, rank int) AS $$
SELECT osm_id, geometry, class, name, name_en, name_de, tags, rank
FROM (
SELECT osm_id, geometry,
COALESCE(NULLIF(boundary, ''), NULLIF(leisure, '')) AS class
COALESCE(NULLIF(boundary, ''), NULLIF(leisure, '')) AS class,
name, name_en, name_de, tags,
NULL::int as rank
FROM (
-- etldoc: osm_park_polygon_gen8 -> layer_park:z6
SELECT osm_id, geometry, leisure, boundary, NULL::int as scalerank
SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, NULL::int as scalerank
FROM osm_park_polygon_gen8
WHERE zoom_level = 6
UNION ALL
-- etldoc: osm_park_polygon_gen7 -> layer_park:z7
SELECT osm_id, geometry, leisure, boundary, NULL::int as scalerank
SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, NULL::int as scalerank
FROM osm_park_polygon_gen7
WHERE zoom_level = 7
UNION ALL
-- etldoc: osm_park_polygon_gen6 -> layer_park:z8
SELECT osm_id, geometry, leisure, boundary, NULL::int as scalerank
SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, NULL::int as scalerank
FROM osm_park_polygon_gen6
WHERE zoom_level = 8
UNION ALL
-- etldoc: osm_park_polygon_gen5 -> layer_park:z9
SELECT osm_id, geometry, leisure, boundary, NULL::int as scalerank
SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, NULL::int as scalerank
FROM osm_park_polygon_gen5
WHERE zoom_level = 9
UNION ALL
-- etldoc: osm_park_polygon_gen4 -> layer_park:z10
SELECT osm_id, geometry, leisure, boundary, NULL::int as scalerank
SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, NULL::int as scalerank
FROM osm_park_polygon_gen4
WHERE zoom_level = 10
UNION ALL
-- etldoc: osm_park_polygon_gen3 -> layer_park:z11
SELECT osm_id, geometry, leisure, boundary, NULL::int as scalerank
SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, NULL::int as scalerank
FROM osm_park_polygon_gen3
WHERE zoom_level = 11
UNION ALL
-- etldoc: osm_park_polygon_gen2 -> layer_park:z12
SELECT osm_id, geometry, leisure, boundary, NULL::int as scalerank
SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, NULL::int as scalerank
FROM osm_park_polygon_gen2
WHERE zoom_level = 12
UNION ALL
-- etldoc: osm_park_polygon_gen1 -> layer_park:z13
SELECT osm_id, geometry, leisure, boundary, NULL::int as scalerank
SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, NULL::int as scalerank
FROM osm_park_polygon_gen1
WHERE zoom_level = 13
UNION ALL
-- etldoc: osm_park_polygon -> layer_park:z14
SELECT osm_id, geometry, leisure, boundary, NULL::int as scalerank
SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, NULL::int as scalerank
FROM osm_park_polygon
WHERE zoom_level >= 14
) AS zoom_levels
) AS park_polygon
UNION ALL
SELECT osm_id, geometry_point AS geometry,
COALESCE(NULLIF(boundary, ''), NULLIF(leisure, '')) AS class,
name, name_en, name_de, tags,
row_number() OVER (
PARTITION BY LabelGrid(geometry_point, 100 * pixel_width)
ORDER BY
(CASE WHEN boundary = 'national_park' THEN true ELSE false END) DESC,
(COALESCE(NULLIF(tags->'wikipedia', ''), NULLIF(tags->'wikidata', '')) IS NOT NULL) DESC,
area DESC
)::int AS "rank"
FROM (
-- etldoc: osm_park_polygon_gen8 -> layer_park:z6
SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, area
FROM osm_park_polygon_gen8
WHERE zoom_level = 6
UNION ALL
-- etldoc: osm_park_polygon_gen7 -> layer_park:z7
SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, area
FROM osm_park_polygon_gen7
WHERE zoom_level = 7
UNION ALL
-- etldoc: osm_park_polygon_gen6 -> layer_park:z8
SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, area
FROM osm_park_polygon_gen6
WHERE zoom_level = 8
UNION ALL
-- etldoc: osm_park_polygon_gen5 -> layer_park:z9
SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, area
FROM osm_park_polygon_gen5
WHERE zoom_level = 9
UNION ALL
-- etldoc: osm_park_polygon_gen4 -> layer_park:z10
SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, area
FROM osm_park_polygon_gen4
WHERE zoom_level = 10
UNION ALL
-- etldoc: osm_park_polygon_gen3 -> layer_park:z11
SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, area
FROM osm_park_polygon_gen3
WHERE zoom_level = 11
UNION ALL
-- etldoc: osm_park_polygon_gen2 -> layer_park:z12
SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, area
FROM osm_park_polygon_gen2
WHERE zoom_level = 12
UNION ALL
-- etldoc: osm_park_polygon_gen1 -> layer_park:z13
SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, area
FROM osm_park_polygon_gen1
WHERE zoom_level = 13
UNION ALL
-- etldoc: osm_park_polygon -> layer_park:z14
SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, area
FROM osm_park_polygon
WHERE zoom_level >= 14
) AS park_point
) AS park_all
WHERE geometry && bbox;
$$ LANGUAGE SQL IMMUTABLE;