kopia lustrzana https://github.com/openmaptiles/openmaptiles
31 wiersze
1.4 KiB
PL/PgSQL
31 wiersze
1.4 KiB
PL/PgSQL
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-- etldoc: layer_mountain_peak[shape=record fillcolor=lightpink,
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-- etldoc: style="rounded,filled", label="layer_mountain_peak | <z7_> z7+" ] ;
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CREATE OR REPLACE FUNCTION layer_mountain_peak(bbox geometry, zoom_level integer, pixel_width numeric)
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RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, name_de text, tags hstore, ele int, ele_ft int, "rank" int) AS $$
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-- etldoc: osm_peak_point -> layer_mountain_peak:z7_
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SELECT osm_id, geometry, name, name_en, name_de, tags, ele::int, ele_ft::int, rank::int
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FROM (
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SELECT osm_id, geometry, name,
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COALESCE(NULLIF(name_en, ''), name) AS name_en,
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COALESCE(NULLIF(name_de, ''), name, name_en) AS name_de,
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tags,
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substring(ele from E'^(-?\\d+)(\\D|$)')::int AS ele,
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round(substring(ele from E'^(-?\\d+)(\\D|$)')::int*3.2808399)::int AS ele_ft,
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row_number() OVER (
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PARTITION BY LabelGrid(geometry, 100 * pixel_width)
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ORDER BY (
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substring(ele from E'^(-?\\d+)(\\D|$)')::int +
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(CASE WHEN NULLIF(wikipedia, '') is not null THEN 10000 ELSE 0 END) +
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(CASE WHEN NULLIF(name, '') is not null THEN 10000 ELSE 0 END)
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) DESC
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)::int AS "rank"
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FROM osm_peak_point
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WHERE geometry && bbox AND ele is not null AND ele ~ E'^-?\\d+'
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) AS ranked_peaks
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WHERE zoom_level >= 7 AND (rank <= 5 OR zoom_level >= 14)
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ORDER BY "rank" ASC;
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$$ LANGUAGE SQL IMMUTABLE;
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