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Major breakthrough, just some artifacting to resolve

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This commit is contained in:
stirringhalo
2017-01-28 10:54:52 -05:00
parent e10e2b9b94
commit 199095a2ba
39 changed files with 1179 additions and 264 deletions
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57
layers/building/building.sql
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@@ -1,6 +1,50 @@
-- etldoc: layer_building[shape=record fillcolor=lightpink, style="rounded,filled",
-- etldoc: label="layer_building | <z13> z13 | <z14_> z14+ " ] ;
CREATE OR REPLACE FUNCTION as_numeric(text) RETURNS NUMERIC AS $$
-- Inspired by http://stackoverflow.com/questions/16195986/isnumeric-with-postgresql/16206123#16206123
DECLARE test NUMERIC;
BEGIN
test = $1::NUMERIC;
RETURN test;
EXCEPTION WHEN others THEN
RETURN -1;
END;
$$ STRICT
LANGUAGE plpgsql IMMUTABLE;
CREATE INDEX IF NOT EXISTS osm_building_relation_building_idx ON osm_building_relation(building);
CREATE OR REPLACE VIEW osm_all_buildings AS (
-- etldoc: osm_building_relation -> layer_building:z14_
SELECT member AS osm_id,geometry,
COALESCE(nullif(as_numeric(height),-1),nullif(as_numeric(buildingheight),-1)) as height,
COALESCE(nullif(as_numeric(min_height),-1),nullif(as_numeric(buildingmin_height),-1)) as min_height,
COALESCE(nullif(as_numeric(levels),-1),nullif(as_numeric(buildinglevels),-1)) as levels,
COALESCE(nullif(as_numeric(min_level),-1),nullif(as_numeric(buildingmin_level),-1)) as min_level
FROM
osm_building_relation WHERE building = ''
UNION ALL
-- etldoc: osm_building_polygon -> layer_building:z14_
SELECT osm_id,geometry,
COALESCE(nullif(as_numeric(height),-1),nullif(as_numeric(buildingheight),-1)) as height,
COALESCE(nullif(as_numeric(min_height),-1),nullif(as_numeric(buildingmin_height),-1)) as min_height,
COALESCE(nullif(as_numeric(levels),-1),nullif(as_numeric(buildinglevels),-1)) as levels,
COALESCE(nullif(as_numeric(min_level),-1),nullif(as_numeric(buildingmin_level),-1)) as min_level
FROM
osm_building_polygon obp WHERE EXISTS (SELECT 1 FROM osm_building_multipolygon obm WHERE obp.osm_id = obm.osm_id)
UNION ALL
-- etldoc: osm_building_polygon -> layer_building:z14_
SELECT osm_id,geometry,
COALESCE(nullif(as_numeric(height),-1),nullif(as_numeric(buildingheight),-1)) as height,
COALESCE(nullif(as_numeric(min_height),-1),nullif(as_numeric(buildingmin_height),-1)) as min_height,
COALESCE(nullif(as_numeric(levels),-1),nullif(as_numeric(buildinglevels),-1)) as levels,
COALESCE(nullif(as_numeric(min_level),-1),nullif(as_numeric(buildingmin_level),-1)) as min_level
FROM
osm_building_polygon WHERE osm_id >= 0
);
CREATE OR REPLACE FUNCTION layer_building(bbox geometry, zoom_level int)
RETURNS TABLE(geometry geometry, osm_id bigint, render_height int, render_min_height int) AS $$
SELECT geometry, osm_id, render_height, render_min_height
@@ -13,12 +57,15 @@ RETURNS TABLE(geometry geometry, osm_id bigint, render_height int, render_min_he
WHERE zoom_level = 13 AND geometry && bbox AND area > 1400
UNION ALL
-- etldoc: osm_building_polygon -> layer_building:z14_
SELECT
osm_id, geometry,
greatest(5, COALESCE(height, levels*3.66,5))::int AS render_height,
greatest(0, COALESCE(min_height, min_level*3.66,0))::int AS render_min_height
FROM osm_building_polygon
SELECT DISTINCT ON (osm_id)
osm_id, geometry,
ceil( COALESCE(height, levels*3.66,5))::int AS render_height,
floor(COALESCE(min_height, min_level*3.66,0))::int AS render_min_height FROM
osm_all_buildings
WHERE zoom_level >= 14 AND geometry && bbox
) AS zoom_levels
ORDER BY render_height ASC, ST_YMin(geometry) DESC;
$$ LANGUAGE SQL IMMUTABLE;
-- not handled: where a building outline covers building parts