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Show water names without centerlines

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Lukas Martinelli
2016-11-29 19:13:38 +00:00
parent a433e77818
commit 6bc06a683a
4 changed files with 26 additions and 7 deletions
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14
layers/water_name/layer.sql
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@@ -1,16 +1,22 @@
-- etldoc: layer_water_name[shape=record fillcolor=lightpink, style="rounded,filled",
-- etldoc: layer_water_name[shape=record fillcolor=lightpink, style="rounded,filled",
-- etldoc: label="layer_water_name | <z9_13> z9_13 | <z14_> z14_" ] ;
CREATE OR REPLACE FUNCTION layer_water_name(bbox geometry, zoom_level integer)
RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, class text) AS $$
-- etldoc: osm_water_lakeline -> layer_water_name:z9_13
-- etldoc: osm_water_lakeline -> layer_water_name:z14_
-- etldoc: osm_water_lakeline -> layer_water_name:z14
SELECT osm_id, geometry, name, name_en, 'lake'::text AS class
FROM osm_water_lakeline
WHERE geometry && bbox
AND name <> ''
AND ((zoom_level BETWEEN 9 AND 13 AND LineLabel(zoom_level, NULLIF(name, ''), geometry))
OR (zoom_level >= 14))
ORDER BY ST_Length(geometry) DESC;
-- etldoc: osm_water_point -> layer_water_name:z9_13
UNION ALL
SELECT osm_id, geometry, name, name_en, 'lake'::text AS class
FROM osm_water_point
WHERE geometry && bbox AND (
(zoom_level BETWEEN 9 AND 13 AND area > 70000*2^(20-zoom_level))
OR (zoom_level >= 14)
);
$$ LANGUAGE SQL IMMUTABLE;