NEWgeometry geometry;
BEGIN
-- RAISE WARNING '%',place;
- NEWgeometry := place;
- IF ST_IsEmpty(NEWgeometry) OR NOT ST_IsValid(NEWgeometry) OR ST_X(ST_Centroid(NEWgeometry))::text in ('NaN','Infinity','-Infinity') OR ST_Y(ST_Centroid(NEWgeometry))::text in ('NaN','Infinity','-Infinity') THEN
- NEWgeometry := ST_buffer(NEWgeometry,0);
- IF ST_IsEmpty(NEWgeometry) OR NOT ST_IsValid(NEWgeometry) OR ST_X(ST_Centroid(NEWgeometry))::text in ('NaN','Infinity','-Infinity') OR ST_Y(ST_Centroid(NEWgeometry))::text in ('NaN','Infinity','-Infinity') THEN
- RETURN 0;
- END IF;
- END IF;
- RETURN (partition*1000000) + (500-ST_X(ST_Centroid(NEWgeometry))::integer)*1000 + (500-ST_Y(ST_Centroid(NEWgeometry))::integer);
-END;
-$$
-LANGUAGE plpgsql IMMUTABLE;
-
-CREATE OR REPLACE FUNCTION debug_geometry_sector(osmid integer, place geometry) RETURNS INTEGER
- AS $$
-DECLARE
- NEWgeometry geometry;
-BEGIN
--- RAISE WARNING '%',osmid;
- IF osmid = 61315 THEN
- return null;
- END IF;
- NEWgeometry := place;
- IF ST_IsEmpty(NEWgeometry) OR NOT ST_IsValid(NEWgeometry) OR ST_X(ST_Centroid(NEWgeometry))::text in ('NaN','Infinity','-Infinity') OR ST_Y(ST_Centroid(NEWgeometry))::text in ('NaN','Infinity','-Infinity') THEN
- NEWgeometry := ST_buffer(NEWgeometry,0);
- IF ST_IsEmpty(NEWgeometry) OR NOT ST_IsValid(NEWgeometry) OR ST_X(ST_Centroid(NEWgeometry))::text in ('NaN','Infinity','-Infinity') OR ST_Y(ST_Centroid(NEWgeometry))::text in ('NaN','Infinity','-Infinity') THEN
- RETURN NULL;
- END IF;
- END IF;
- RETURN (500-ST_X(ST_Centroid(NEWgeometry))::integer)*1000 + (500-ST_Y(ST_Centroid(NEWgeometry))::integer);
+ NEWgeometry := ST_PointOnSurface(place);
+-- IF ST_IsEmpty(NEWgeometry) OR NOT ST_IsValid(NEWgeometry) OR ST_X(ST_Centroid(NEWgeometry))::text in ('NaN','Infinity','-Infinity') OR ST_Y(ST_Centroid(NEWgeometry))::text in ('NaN','Infinity','-Infinity') THEN
+-- NEWgeometry := ST_buffer(NEWgeometry,0);
+-- IF ST_IsEmpty(NEWgeometry) OR NOT ST_IsValid(NEWgeometry) OR ST_X(ST_Centroid(NEWgeometry))::text in ('NaN','Infinity','-Infinity') OR ST_Y(ST_Centroid(NEWgeometry))::text in ('NaN','Infinity','-Infinity') THEN
+-- RETURN 0;
+-- END IF;
+-- END IF;
+ RETURN (partition*1000000) + (500-ST_X(NEWgeometry)::integer)*1000 + (500-ST_Y(NEWgeometry)::integer);
END;
$$
LANGUAGE plpgsql IMMUTABLE;
result := '{}'::INTEGER[];
s := make_standard_name(src);
- w := getorcreate_name_id(s);
+ w := getorcreate_name_id(s, src);
IF NOT (ARRAY[w] <@ result) THEN
result := result || w;
END LOOP;
END IF;
+ words := regexp_split_to_array(src, E'[,;()]');
+ IF array_upper(words, 1) != 1 THEN
+ FOR j IN 1..array_upper(words, 1) LOOP
+ s := make_standard_name(words[j]);
+ IF s != '' THEN
+ w := getorcreate_word_id(s);
+ IF NOT (ARRAY[w] <@ result) THEN
+ result := result || w;
+ END IF;
+ END IF;
+ END LOOP;
+ END IF;
+
+ s := regexp_replace(src, '市$', '');
+ IF s != src THEN
+ s := make_standard_name(s);
+ IF s != '' THEN
+ w := getorcreate_name_id(s, src);
+ IF NOT (ARRAY[w] <@ result) THEN
+ result := result || w;
+ END IF;
+ END IF;
+ END IF;
+
RETURN result;
END;
$$
place_centre GEOMETRY;
nearcountry RECORD;
BEGIN
- place_centre := ST_Centroid(place);
+ place_centre := ST_PointOnSurface(place);
---RAISE WARNING 'start: %', ST_AsText(place_centre);
+--DEBUG: RAISE WARNING 'get_country_code, start: %', ST_AsText(place_centre);
- -- Try for a OSM polygon first
- FOR nearcountry IN select country_code from location_area_country where country_code is not null and not isguess and st_contains(geometry, place_centre) limit 1
+--DEBUG: RAISE WARNING 'osm fallback: %', ST_AsText(place_centre);
+
+ -- Try for OSM fallback data
+ -- The order is to deal with places like HongKong that are 'states' within another polygon
+ FOR nearcountry IN select country_code from country_osm_grid where st_covers(geometry, place_centre) order by area asc limit 1
LOOP
RETURN nearcountry.country_code;
END LOOP;
---RAISE WARNING 'osm fallback: %', ST_AsText(place_centre);
-
- -- Try for OSM fallback data
- FOR nearcountry IN select country_code from country_osm_grid where st_contains(geometry, place_centre) limit 1
+ -- Try for a OSM polygon
+ FOR nearcountry IN select country_code from location_area_country where country_code is not null and not isguess and st_covers(geometry, place_centre) limit 1
LOOP
RETURN nearcountry.country_code;
END LOOP;
---RAISE WARNING 'natural earth: %', ST_AsText(place_centre);
+--DEBUG: RAISE WARNING 'natural earth: %', ST_AsText(place_centre);
- -- Natural earth data (first fallback)
- FOR nearcountry IN select country_code from country_naturalearthdata where st_contains(geometry, place_centre) limit 1
+ -- Natural earth data
+ FOR nearcountry IN select country_code from country_naturalearthdata where st_covers(geometry, place_centre) limit 1
LOOP
RETURN nearcountry.country_code;
END LOOP;
- -- Natural earth data (first fallback)
- FOR nearcountry IN select country_code from country_naturalearthdata where st_distance(geometry, place_centre) < 0.5 limit 1
+--DEBUG: RAISE WARNING 'near osm fallback: %', ST_AsText(place_centre);
+
+ --
+ FOR nearcountry IN select country_code from country_osm_grid where st_dwithin(geometry, place_centre, 0.5) order by st_distance(geometry, place_centre) asc, area asc limit 1
LOOP
RETURN nearcountry.country_code;
END LOOP;
---RAISE WARNING 'in country: %', ST_AsText(place_centre);
+--DEBUG: RAISE WARNING 'near natural earth: %', ST_AsText(place_centre);
- -- WorldBoundaries data (second fallback - think there might be something broken in this data)
- FOR nearcountry IN select country_code from country where st_contains(geometry, place_centre) limit 1
+ -- Natural earth data
+ FOR nearcountry IN select country_code from country_naturalearthdata where st_dwithin(geometry, place_centre, 0.5) limit 1
LOOP
RETURN nearcountry.country_code;
END LOOP;
+ -- WorldBoundaries data (second fallback - think there might be something broken in this data)
+-- FOR nearcountry IN select country_code from country where st_covers(geometry, place_centre) limit 1
+-- LOOP
+-- RETURN nearcountry.country_code;
+-- END LOOP;
+
--RAISE WARNING 'near country: %', ST_AsText(place_centre);
-- Still not in a country - try nearest within ~12 miles of a country
- FOR nearcountry IN select country_code from country where st_distance(geometry, place_centre) < 0.5
- order by st_distance(geometry, place) limit 1
- LOOP
- RETURN nearcountry.country_code;
- END LOOP;
+-- FOR nearcountry IN select country_code from country where st_distance(geometry, place_centre) < 0.5
+-- order by st_distance(geometry, place) limit 1
+-- LOOP
+-- RETURN nearcountry.country_code;
+-- END LOOP;
RETURN NULL;
END;
DECLARE
locationid INTEGER;
isarea BOOLEAN;
- xmin INTEGER;
- ymin INTEGER;
- xmax INTEGER;
- ymax INTEGER;
- lon INTEGER;
- lat INTEGER;
centroid GEOMETRY;
- secgeo GEOMETRY;
- secbox GEOMETRY;
diameter FLOAT;
x BOOLEAN;
+ splitGeom RECORD;
+ secgeo GEOMETRY;
BEGIN
IF rank_search > 25 THEN
isArea := true;
centroid := ST_Centroid(geometry);
- xmin := floor(st_xmin(geometry));
- xmax := ceil(st_xmax(geometry));
- ymin := floor(st_ymin(geometry));
- ymax := ceil(st_ymax(geometry));
-
- IF xmin = xmax OR ymin = ymax OR (xmax-xmin < 2 AND ymax-ymin < 2) THEN
- x := insertLocationAreaLarge(partition, place_id, country_code, keywords, rank_search, rank_address, false, centroid, geometry);
- ELSE
--- RAISE WARNING 'Spliting geometry: % to %, % to %', xmin, xmax, ymin, ymax;
- FOR lon IN xmin..(xmax-1) LOOP
- FOR lat IN ymin..(ymax-1) LOOP
- secbox := ST_SetSRID(ST_MakeBox2D(ST_Point(lon,lat),ST_Point(lon+1,lat+1)),4326);
- IF st_intersects(geometry, secbox) THEN
- secgeo := st_intersection(geometry, secbox);
- IF NOT ST_IsEmpty(secgeo) AND ST_GeometryType(secgeo) in ('ST_Polygon','ST_MultiPolygon') THEN
- x := insertLocationAreaLarge(partition, place_id, country_code, keywords, rank_search, rank_address, false, centroid, secgeo);
- END IF;
- END IF;
- END LOOP;
- END LOOP;
- END IF;
+ FOR secgeo IN select split_geometry(geometry) AS geom LOOP
+ x := insertLocationAreaLarge(partition, place_id, country_code, keywords, rank_search, rank_address, false, centroid, secgeo);
+ END LOOP;
ELSEIF rank_search < 26 THEN
diameter FLOAT;
classtable TEXT;
BEGIN
--- RAISE WARNING '%',NEW.osm_id;
+ --DEBUG: RAISE WARNING '% %',NEW.osm_type,NEW.osm_id;
-- just block these
IF NEW.class = 'highway' and NEW.type in ('turning_circle','traffic_signals','mini_roundabout','noexit','crossing') THEN
IF ST_IsEmpty(NEW.geometry) OR NOT ST_IsValid(NEW.geometry) OR ST_X(ST_Centroid(NEW.geometry))::text in ('NaN','Infinity','-Infinity') OR ST_Y(ST_Centroid(NEW.geometry))::text in ('NaN','Infinity','-Infinity') THEN
-- block all invalid geometary - just not worth the risk. seg faults are causing serious problems.
--- RAISE WARNING 'invalid geometry %',NEW.osm_id;
+ RAISE WARNING 'invalid geometry %',NEW.osm_id;
RETURN NULL;
-- Dead code
END IF;
NEW.geometry := ST_buffer(NEW.geometry,0);
IF ST_IsEmpty(NEW.geometry) OR NOT ST_IsValid(NEW.geometry) OR ST_X(ST_Centroid(NEW.geometry))::text in ('NaN','Infinity','-Infinity') OR ST_Y(ST_Centroid(NEW.geometry))::text in ('NaN','Infinity','-Infinity') THEN
--- RAISE WARNING 'Invalid geometary, rejecting: % %', NEW.osm_type, NEW.osm_id;
+ RAISE WARNING 'Invalid geometary, rejecting: % %', NEW.osm_type, NEW.osm_id;
RETURN NULL;
END IF;
END IF;
+ --DEBUG: RAISE WARNING '% % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type;
+
NEW.place_id := nextval('seq_place');
NEW.indexed_status := 1; --STATUS_NEW
- IF NEW.rank_search >= 4 THEN
- NEW.country_code := lower(get_country_code(NEW.geometry, NEW.country_code));
- ELSE
- NEW.country_code := NULL;
- END IF;
+ NEW.calculated_country_code := lower(get_country_code(NEW.geometry, NEW.country_code));
- NEW.partition := get_partition(NEW.geometry, NEW.country_code);
+ NEW.partition := get_partition(NEW.geometry, NEW.calculated_country_code);
NEW.geometry_sector := geometry_sector(NEW.partition, NEW.geometry);
-- copy 'name' to or from the default language (if there is a default language)
IF NEW.name is not null AND array_upper(akeys(NEW.name),1) > 1 THEN
- default_language := get_country_language_code(NEW.country_code);
+ default_language := get_country_language_code(NEW.calculated_country_code);
IF default_language IS NOT NULL THEN
IF NEW.name ? 'name' AND NOT NEW.name ? ('name:'||default_language) THEN
NEW.name := NEW.name || (('name:'||default_language) => (NEW.name -> 'name'));
NEW.name := 'ref'=>NEW.postcode;
- IF NEW.country_code = 'gb' THEN
+ IF NEW.calculated_country_code = 'gb' THEN
IF NEW.postcode ~ '^([A-Z][A-Z]?[0-9][0-9A-Z]? [0-9][A-Z][A-Z])$' THEN
NEW.rank_search := 25;
NEW.rank_address := 5;
END IF;
- ELSEIF NEW.country_code = 'de' THEN
+ ELSEIF NEW.calculated_country_code = 'de' THEN
IF NEW.postcode ~ '^([0-9]{5})$' THEN
NEW.rank_search := 21;
IF NEW.type in ('continent') THEN
NEW.rank_search := 2;
NEW.rank_address := NEW.rank_search;
+ NEW.calculated_country_code := NULL;
ELSEIF NEW.type in ('sea') THEN
NEW.rank_search := 2;
NEW.rank_address := 0;
+ NEW.calculated_country_code := NULL;
ELSEIF NEW.type in ('country') THEN
NEW.rank_search := 4;
NEW.rank_address := NEW.rank_search;
END IF;
IF (NEW.extratags -> 'capital') = 'yes' THEN
- NEW.rank_search := NEW.rank_search -1;
+ NEW.rank_search := NEW.rank_search - 1;
+ END IF;
+
+ -- a country code make no sense below rank 4 (country)
+ IF NEW.rank_address < 4 THEN
+ NEW.calculated_country_code := NULL;
END IF;
-- Block import below rank 22
-- RETURN NULL;
-- END IF;
- RETURN NEW; -- The following is not needed until doing diff updates, and slows the main index process down
+ --DEBUG: RAISE WARNING 'placex_insert:END: % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type;
+
+ RETURN NEW; -- @DIFFUPDATES@ The following is not needed until doing diff updates, and slows the main index process down
IF (ST_GeometryType(NEW.geometry) in ('ST_Polygon','ST_MultiPolygon') AND ST_IsValid(NEW.geometry)) THEN
-- Performance: We just can't handle re-indexing for country level changes
-- RAISE WARNING 'placex poly insert: % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type;
-- work around bug in postgis, this may have been fixed in 2.0.0 (see http://trac.osgeo.org/postgis/ticket/547)
- update placex set indexed_status = 2 where (ST_Contains(NEW.geometry, placex.geometry) OR ST_Intersects(NEW.geometry, placex.geometry))
+ update placex set indexed_status = 2 where (st_covers(NEW.geometry, placex.geometry) OR ST_Intersects(NEW.geometry, placex.geometry))
AND rank_search > NEW.rank_search and indexed_status = 0 and ST_geometrytype(placex.geometry) = 'ST_Point' and (rank_search < 28 or name is not null);
- update placex set indexed_status = 2 where (ST_Contains(NEW.geometry, placex.geometry) OR ST_Intersects(NEW.geometry, placex.geometry))
+ update placex set indexed_status = 2 where (st_covers(NEW.geometry, placex.geometry) OR ST_Intersects(NEW.geometry, placex.geometry))
AND rank_search > NEW.rank_search and indexed_status = 0 and ST_geometrytype(placex.geometry) != 'ST_Point' and (rank_search < 28 or name is not null);
END IF;
ELSE
name_vector INTEGER[];
nameaddress_vector INTEGER[];
- wiki_article TEXT;
- wiki_article_title TEXT;
- wiki_article_language TEXT;
+ linked_node_id BIGINT;
result BOOLEAN;
BEGIN
+ IF NEW.indexed_status != 0 OR OLD.indexed_status = 0 OR NEW.linked_place_id is not null THEN
+ RETURN NEW;
+ END IF;
+
+ --DEBUG: RAISE WARNING 'placex_update % %',NEW.osm_type,NEW.osm_id;
+
--RAISE WARNING '%',NEW.place_id;
--RAISE WARNING '%', NEW;
-- deferred delete
IF OLD.indexed_status = 100 THEN
+ --DEBUG: RAISE WARNING 'placex_update_delete % %',NEW.osm_type,NEW.osm_id;
delete from placex where place_id = OLD.place_id;
RETURN NULL;
END IF;
- IF NEW.indexed_status = 0 and OLD.indexed_status != 0 THEN
+ IF OLD.indexed_status != 0 THEN
+ --DEBUG: RAISE WARNING 'placex_update_0 % %',NEW.osm_type,NEW.osm_id;
NEW.indexed_date = now();
RETURN NEW;
END IF;
- IF OLD.indexed_status > 1 THEN
+ IF OLD.indexed_status > 0 THEN
result := deleteSearchName(NEW.partition, NEW.place_id);
DELETE FROM place_addressline WHERE place_id = NEW.place_id;
DELETE FROM place_boundingbox where place_id = NEW.place_id;
UPDATE placex set linked_place_id = null where linked_place_id = NEW.place_id;
END IF;
- -- reclaculate country and partition (should probably have a country_code and calculated_country_code as seperate fields)
+ -- Speed up searches - just use the centroid of the feature
+ -- cheaper but less acurate
+ place_centroid := ST_PointOnSurface(NEW.geometry);
+ NEW.centroid := null;
+
+ -- reclaculate country and partition
IF NEW.rank_search >= 4 THEN
- SELECT country_code from place where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type INTO NEW.country_code;
- NEW.country_code := lower(get_country_code(NEW.geometry, NEW.country_code));
+ --NEW.calculated_country_code := lower(get_country_code(NEW.geometry, NEW.country_code));
+ NEW.calculated_country_code := lower(get_country_code(place_centroid));
ELSE
- NEW.country_code := NULL;
+ NEW.calculated_country_code := NULL;
END IF;
- NEW.partition := get_partition(NEW.geometry, NEW.country_code);
- NEW.geometry_sector := geometry_sector(NEW.partition, NEW.geometry);
+ NEW.partition := get_partition(place_centroid, NEW.calculated_country_code);
+ NEW.geometry_sector := geometry_sector(NEW.partition, place_centroid);
-- Adding ourselves to the list simplifies address calculations later
INSERT INTO place_addressline VALUES (NEW.place_id, NEW.place_id, true, true, 0, NEW.rank_address);
-- What level are we searching from
search_maxrank := NEW.rank_search;
- -- Speed up searches - just use the centroid of the feature
- -- cheaper but less acurate
- place_centroid := ST_Centroid(NEW.geometry);
- NEW.centroid := null;
-
-- Thought this wasn't needed but when we add new languages to the country_name table
-- we need to update the existing names
IF NEW.name is not null AND array_upper(akeys(NEW.name),1) > 1 THEN
- default_language := get_country_language_code(NEW.country_code);
+ default_language := get_country_language_code(NEW.calculated_country_code);
IF default_language IS NOT NULL THEN
IF NEW.name ? 'name' AND NOT NEW.name ? ('name:'||default_language) THEN
NEW.name := NEW.name || (('name:'||default_language) => (NEW.name -> 'name'));
END LOOP;
NEW.importance := null;
- -- WARNING: see duplicate of code below (yuk!)
- IF NEW.extratags?'wikipedia' THEN
- wiki_article := replace(regexp_replace(NEW.extratags->'wikipedia',E'(.*?)([a-z]+).wikipedia.org/wiki/',E'\\2:'),' ','_');
- wiki_article_title := split_part(wiki_article, ':', 2);
- IF wiki_article_title IS NULL OR wiki_article_title = '' THEN
- wiki_article_title := wiki_article;
- wiki_article_language := 'en';
- ELSE
- wiki_article_language := lower(split_part(wiki_article, ':', 1));
- END IF;
---RAISE WARNING '% %', wiki_article_language, wiki_article_title;
-
- select wikipedia_article.importance,wikipedia_article.language||':'||wikipedia_article.title
- from wikipedia_article
- where language = wiki_article_language and
- (title = wiki_article_title OR title = catch_decode_url_part(wiki_article_title) OR title = replace(catch_decode_url_part(wiki_article_title),E'\\',''))
- UNION ALL
- select wikipedia_article.importance,wikipedia_article.language||':'||wikipedia_article.title
- from wikipedia_redirect join wikipedia_article on (wikipedia_redirect.language = wikipedia_article.language and wikipedia_redirect.to_title = wikipedia_article.title)
- where wikipedia_redirect.language = wiki_article_language and
- (from_title = wiki_article_title OR from_title = catch_decode_url_part(wiki_article_title) OR from_title = replace(catch_decode_url_part(wiki_article_title),E'\\',''))
- order by importance asc limit 1 INTO NEW.importance,NEW.wikipedia;
-
- ELSE
- select importance,language||':'||title from wikipedia_article where osm_type = NEW.osm_type and osm_id = NEW.osm_id order by importance asc limit 1 INTO NEW.importance,NEW.wikipedia;
+ select language||':'||title,importance from get_wikipedia_match(NEW.extratags, NEW.calculated_country_code) INTO NEW.wikipedia,NEW.importance;
+ IF NEW.importance IS NULL THEN
+ select language||':'||title,importance from wikipedia_article where osm_type = NEW.osm_type and osm_id = NEW.osm_id order by importance desc limit 1 INTO NEW.wikipedia,NEW.importance;
END IF;
---RAISE WARNING '% %', NEW.place_id, NEW.rank_search;
+--RAISE WARNING 'before low level% %', NEW.place_id, NEW.rank_search;
-- For low level elements we inherit from our parent road
IF (NEW.rank_search > 27 OR (NEW.type = 'postcode' AND NEW.rank_search = 25)) THEN
-- Get the details of the parent road
select * from search_name where place_id = NEW.parent_place_id INTO location;
- NEW.country_code := location.country_code;
+ NEW.calculated_country_code := location.country_code;
--RAISE WARNING '%', NEW.name;
-- If there is no name it isn't searchable, don't bother to create a search record
-- Just be happy with inheriting from parent road only
IF NEW.rank_search <= 25 THEN
- result := add_location(NEW.place_id, NEW.country_code, NEW.partition, name_vector, NEW.rank_search, NEW.rank_address, NEW.geometry);
+ result := add_location(NEW.place_id, NEW.calculated_country_code, NEW.partition, name_vector, NEW.rank_search, NEW.rank_address, NEW.geometry);
END IF;
- result := insertSearchName(NEW.partition, NEW.place_id, NEW.country_code, name_vector, nameaddress_vector, NEW.rank_search, NEW.rank_address, NEW.importance, place_centroid);
+ result := insertSearchName(NEW.partition, NEW.place_id, NEW.calculated_country_code, name_vector, nameaddress_vector, NEW.rank_search, NEW.rank_address, NEW.importance, place_centroid);
return NEW;
END IF;
END IF;
+-- RAISE WARNING ' INDEXING Started:';
-- RAISE WARNING ' INDEXING: %',NEW;
IF NEW.osm_type = 'R' AND NEW.rank_search < 26 THEN
-- see if we have any special relation members
select members from planet_osm_rels where id = NEW.osm_id INTO relation_members;
+-- RAISE WARNING 'get_osm_rel_members, label';
FOR relMember IN select get_osm_rel_members(relation_members,ARRAY['label']) as member LOOP
- select * from placex where osm_type = upper(substring(relMember.member,1,1))
- and osm_id = substring(relMember.member,2,10000)::integer order by rank_search desc limit 1 into linkedPlacex;
+ select * from placex where osm_type = upper(substring(relMember.member,1,1))::char(1)
+ and osm_id = substring(relMember.member,2,10000)::bigint order by rank_search desc limit 1 into linkedPlacex;
-- If we don't already have one use this as the centre point of the geometry
IF NEW.centroid IS NULL THEN
FOR relMember IN select get_osm_rel_members(relation_members,ARRAY['admin_center','admin_centre']) as member LOOP
- select * from placex where osm_type = upper(substring(relMember.member,1,1))
- and osm_id = substring(relMember.member,2,10000)::integer order by rank_search desc limit 1 into linkedPlacex;
+ select * from placex where osm_type = upper(substring(relMember.member,1,1))::char(1)
+ and osm_id = substring(relMember.member,2,10000)::bigint order by rank_search desc limit 1 into linkedPlacex;
-- For an admin centre we also want a name match - still not perfect, for example 'new york, new york'
-- But that can be fixed by explicitly setting the label in the data
IF make_standard_name(NEW.name->'name') = make_standard_name(linkedPlacex.name->'name')
AND NEW.rank_search = linkedPlacex.rank_search THEN
+
-- If we don't already have one use this as the centre point of the geometry
IF NEW.centroid IS NULL THEN
NEW.centroid := coalesce(linkedPlacex.centroid,st_centroid(linkedPlacex.geometry));
-- mark the linked place (excludes from search results)
UPDATE placex set linked_place_id = NEW.place_id where place_id = linkedPlacex.place_id;
+
+ -- keep a note of the node id in case we need it for wikipedia in a bit
+ linked_node_id := linkedPlacex.osm_id;
END IF;
END LOOP;
make_standard_name(name->'name') = make_standard_name(NEW.name->'name')
AND placex.rank_search = NEW.rank_search
AND placex.place_id != NEW.place_id
- AND osm_type = 'N'
- AND st_contains(NEW.geometry, placex.geometry)
+ AND placex.osm_type = 'N'::char(1) AND placex.rank_search < 26
+ AND st_covers(NEW.geometry, placex.geometry)
LOOP
-- If we don't already have one use this as the centre point of the geometry
-- mark the linked place (excludes from search results)
UPDATE placex set linked_place_id = NEW.place_id where place_id = linkedPlacex.place_id;
+ -- keep a note of the node id in case we need it for wikipedia in a bit
+ linked_node_id := linkedPlacex.osm_id;
END LOOP;
END IF;
END IF;
-- Did we gain a wikipedia tag in the process? then we need to recalculate our importance
- -- WARNING: duplicate of code above (yuk!)
- IF NEW.importance is null AND NEW.extratags?'wikipedia' THEN
- wiki_article := replace(regexp_replace(NEW.extratags->'wikipedia',E'(.*?)([a-z]+).wikipedia.org/wiki/',E'\\2:'),' ','_');
- wiki_article_title := split_part(wiki_article, ':', 2);
- IF wiki_article_title IS NULL OR wiki_article_title = '' THEN
- wiki_article_title := wiki_article;
- wiki_article_language := 'en';
- ELSE
- wiki_article_language := lower(split_part(wiki_article, ':', 1));
- END IF;
-
- select wikipedia_article.importance,wikipedia_article.language||':'||wikipedia_article.title
- from wikipedia_article
- where language = wiki_article_language and
- (title = wiki_article_title OR title = catch_decode_url_part(wiki_article_title) OR title = replace(catch_decode_url_part(wiki_article_title),E'\\',''))
- UNION ALL
- select wikipedia_article.importance,wikipedia_article.language||':'||wikipedia_article.title
- from wikipedia_redirect join wikipedia_article on (wikipedia_redirect.language = wikipedia_article.language and wikipedia_redirect.to_title = wikipedia_article.title)
- where wikipedia_redirect.language = wiki_article_language and
- (from_title = wiki_article_title OR from_title = catch_decode_url_part(wiki_article_title) OR from_title = replace(catch_decode_url_part(wiki_article_title),E'\\',''))
- order by importance asc limit 1 INTO NEW.importance,NEW.wikipedia;
-
+ IF NEW.importance is null THEN
+ select language||':'||title,importance from get_wikipedia_match(NEW.extratags, NEW.calculated_country_code) INTO NEW.wikipedia,NEW.importance;
+ END IF;
+ -- Still null? how about looking it up by the node id
+ IF NEW.importance IS NULL THEN
+ select language||':'||title,importance from wikipedia_article where osm_type = 'N'::char(1) and osm_id = linked_node_id order by importance desc limit 1 INTO NEW.wikipedia,NEW.importance;
END IF;
END IF;
END LOOP;
END IF;
END IF;
---RAISE WARNING 'ISIN: %', isin_tokens;
+-- RAISE WARNING 'ISIN: %', isin_tokens;
-- Process area matches
location_rank_search := 100;
location_distance := 0;
---RAISE WARNING ' getNearFeatures(%,''%'',%,''%'')',NEW.partition, place_centroid, search_maxrank, isin_tokens;
+-- RAISE WARNING ' getNearFeatures(%,''%'',%,''%'')',NEW.partition, place_centroid, search_maxrank, isin_tokens;
FOR location IN SELECT * from getNearFeatures(NEW.partition, place_centroid, search_maxrank, isin_tokens) LOOP
--RAISE WARNING ' AREA: %',location;
IF NEW.name IS NOT NULL THEN
IF NEW.rank_search <= 25 THEN
- result := add_location(NEW.place_id, NEW.country_code, NEW.partition, name_vector, NEW.rank_search, NEW.rank_address, NEW.geometry);
+ result := add_location(NEW.place_id, NEW.calculated_country_code, NEW.partition, name_vector, NEW.rank_search, NEW.rank_address, NEW.geometry);
END IF;
IF NEW.rank_search between 26 and 27 and NEW.class = 'highway' THEN
- result := insertLocationRoad(NEW.partition, NEW.place_id, NEW.country_code, NEW.geometry);
+ result := insertLocationRoad(NEW.partition, NEW.place_id, NEW.calculated_country_code, NEW.geometry);
END IF;
- result := insertSearchName(NEW.partition, NEW.place_id, NEW.country_code, name_vector, nameaddress_vector, NEW.rank_search, NEW.rank_address, NEW.importance, place_centroid);
+ result := insertSearchName(NEW.partition, NEW.place_id, NEW.calculated_country_code, name_vector, nameaddress_vector, NEW.rank_search, NEW.rank_address, NEW.importance, place_centroid);
--- INSERT INTO search_name values (NEW.place_id, NEW.rank_search, NEW.rank_search, 0, NEW.country_code, name_vector, nameaddress_vector, place_centroid);
+-- INSERT INTO search_name values (NEW.place_id, NEW.rank_search, NEW.rank_search, 0, NEW.calculated_country_code, name_vector, nameaddress_vector, place_centroid);
END IF;
-- If we've not managed to pick up a better one - default centroid
b BOOLEAN;
classtable TEXT;
BEGIN
+ -- RAISE WARNING 'placex_delete % %',OLD.osm_type,OLD.osm_id;
update placex set linked_place_id = null where linked_place_id = OLD.place_id;
+ --DEBUG: RAISE WARNING 'placex_delete:01 % %',OLD.osm_type,OLD.osm_id;
update placex set indexed_status = 2 where linked_place_id = OLD.place_id and indexed_status = 0;
+ --DEBUG: RAISE WARNING 'placex_delete:02 % %',OLD.osm_type,OLD.osm_id;
IF OLD.rank_address < 30 THEN
-- mark everything linked to this place for re-indexing
+ --DEBUG: RAISE WARNING 'placex_delete:03 % %',OLD.osm_type,OLD.osm_id;
UPDATE placex set indexed_status = 2 from place_addressline where address_place_id = OLD.place_id
and placex.place_id = place_addressline.place_id and indexed_status = 0;
+ --DEBUG: RAISE WARNING 'placex_delete:04 % %',OLD.osm_type,OLD.osm_id;
DELETE FROM place_addressline where address_place_id = OLD.place_id;
+ --DEBUG: RAISE WARNING 'placex_delete:05 % %',OLD.osm_type,OLD.osm_id;
b := deleteRoad(OLD.partition, OLD.place_id);
+ --DEBUG: RAISE WARNING 'placex_delete:06 % %',OLD.osm_type,OLD.osm_id;
update placex set indexed_status = 2 where parent_place_id = OLD.place_id and indexed_status = 0;
+ --DEBUG: RAISE WARNING 'placex_delete:07 % %',OLD.osm_type,OLD.osm_id;
END IF;
+ --DEBUG: RAISE WARNING 'placex_delete:08 % %',OLD.osm_type,OLD.osm_id;
+
IF OLD.rank_address < 26 THEN
b := deleteLocationArea(OLD.partition, OLD.place_id);
END IF;
+ --DEBUG: RAISE WARNING 'placex_delete:09 % %',OLD.osm_type,OLD.osm_id;
+
IF OLD.name is not null THEN
b := deleteSearchName(OLD.partition, OLD.place_id);
END IF;
+ --DEBUG: RAISE WARNING 'placex_delete:10 % %',OLD.osm_type,OLD.osm_id;
+
DELETE FROM place_addressline where place_id = OLD.place_id;
+ --DEBUG: RAISE WARNING 'placex_delete:11 % %',OLD.osm_type,OLD.osm_id;
+
-- remove from tables for special search
classtable := 'place_classtype_' || OLD.class || '_' || OLD.type;
SELECT count(*)>0 FROM pg_tables WHERE tablename = classtable INTO b;
EXECUTE 'DELETE FROM ' || classtable::regclass || ' WHERE place_id = $1' USING OLD.place_id;
END IF;
+ --DEBUG: RAISE WARNING 'placex_delete:12 % %',OLD.osm_type,OLD.osm_id;
+
RETURN OLD;
END;
placeid BIGINT;
BEGIN
--- RAISE WARNING 'delete: % % % %',OLD.osm_type,OLD.osm_id,OLD.class,OLD.type;
+ --DEBUG: RAISE WARNING 'delete: % % % %',OLD.osm_type,OLD.osm_id,OLD.class,OLD.type;
- -- deleting large polygons can have a massive effect ont he system - require manual intervention to let them through
- IF st_area(OLD.geometry) > 2 THEN
+ -- deleting large polygons can have a massive effect on the system - require manual intervention to let them through
+ IF st_area(OLD.geometry) > 2 and st_isvalid(OLD.geometry) THEN
insert into import_polygon_delete values (OLD.osm_type,OLD.osm_id,OLD.class,OLD.type);
RETURN NULL;
END IF;
-- mark for delete
UPDATE placex set indexed_status = 100 where osm_type = OLD.osm_type and osm_id = OLD.osm_id and class = OLD.class and type = OLD.type;
--- delete from placex where osm_type = OLD.osm_type and osm_id = OLD.osm_id and class = OLD.class and type = OLD.type;
RETURN OLD;
END;
partition INTEGER;
BEGIN
+ --DEBUG: RAISE WARNING '-----------------------------------------------------------------------------------';
+ --DEBUG: RAISE WARNING 'place_insert: % % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type,st_area(NEW.geometry);
+
IF FALSE and NEW.osm_type = 'R' THEN
- RAISE WARNING '-----------------------------------------------------------------------------------';
- RAISE WARNING 'place_insert: % % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type,st_area(NEW.geometry);
select * from placex where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type INTO existingplacex;
- RAISE WARNING '%', existingplacex;
+ --DEBUG: RAISE WARNING '%', existingplacex;
END IF;
-- Just block these - lots and pointless
-- Patch in additional country names
IF NEW.admin_level = 2 AND NEW.type = 'administrative' AND NEW.country_code is not null THEN
- select country_name.name || NEW.name from country_name where country_name.country_code = lower(NEW.country_code) INTO NEW.name;
+ select coalesce(country_name.name || NEW.name,NEW.name) from country_name where country_name.country_code = lower(NEW.country_code) INTO NEW.name;
END IF;
-- Have we already done this place?
DELETE FROM place where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type not in ('postcode','house','houses');
END IF;
--- RAISE WARNING 'Existing: %',existing.place_id;
+ --DEBUG: RAISE WARNING 'Existing: %',existing.osm_id;
+ --DEBUG: RAISE WARNING 'Existing PlaceX: %',existingplacex.place_id;
-- Log and discard
IF existing.geometry is not null AND st_isvalid(existing.geometry)
DELETE from import_polygon_delete where osm_type = NEW.osm_type and osm_id = NEW.osm_id;
-- To paraphrase, if there isn't an existing item, OR if the admin level has changed, OR if it is a major change in geometry
- IF existing.osm_type IS NULL
- OR existingplacex.osm_type IS NULL
- OR coalesce(existing.admin_level, 100) != coalesce(NEW.admin_level, 100)
- OR coalesce(existing.country_code, '') != coalesce(NEW.country_code, '')
- OR (existing.geometry::text != NEW.geometry::text AND ST_Distance(ST_Centroid(existing.geometry),ST_Centroid(NEW.geometry)) > 0.01 AND NOT
- (ST_GeometryType(existing.geometry) in ('ST_Polygon','ST_MultiPolygon') AND ST_GeometryType(NEW.geometry) in ('ST_Polygon','ST_MultiPolygon')))
- THEN
-
--- IF existing.osm_type IS NULL THEN
--- RAISE WARNING 'no existing place';
--- END IF;
--- IF existingplacex.osm_type IS NULL THEN
--- RAISE WARNING 'no existing placex %', existingplacex;
--- END IF;
-
--- RAISE WARNING 'delete and replace';
+ IF existingplacex.osm_type IS NULL THEN
IF existing.osm_type IS NOT NULL THEN
--- RAISE WARNING 'insert delete % % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type,ST_Distance(ST_Centroid(existing.geometry),ST_Centroid(NEW.geometry)),existing;
- DELETE FROM place where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type;
- END IF;
-
--- RAISE WARNING 'delete and replace2';
+ DELETE from place where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type;
+ END IF;
-- No - process it as a new insertion (hopefully of low rank or it will be slow)
insert into placex (osm_type, osm_id, class, type, name, admin_level, housenumber,
,NEW.geometry
);
--- RAISE WARNING 'insert done % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type;
+ --DEBUG: RAISE WARNING 'insert done % % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type,NEW.name;
RETURN NEW;
END IF;
-- re-index points that have moved in / out of the polygon, could be done as a single query but postgres gets the index usage wrong
update placex set indexed_status = 2 where indexed_status = 0 and
- (ST_Contains(NEW.geometry, placex.geometry) OR ST_Intersects(NEW.geometry, placex.geometry))
- AND NOT (ST_Contains(existinggeometry, placex.geometry) OR ST_Intersects(existinggeometry, placex.geometry))
+ (st_covers(NEW.geometry, placex.geometry) OR ST_Intersects(NEW.geometry, placex.geometry))
+ AND NOT (st_covers(existinggeometry, placex.geometry) OR ST_Intersects(existinggeometry, placex.geometry))
AND rank_search > existingplacex.rank_search AND (rank_search < 28 or name is not null);
update placex set indexed_status = 2 where indexed_status = 0 and
- (ST_Contains(existinggeometry, placex.geometry) OR ST_Intersects(existinggeometry, placex.geometry))
- AND NOT (ST_Contains(NEW.geometry, placex.geometry) OR ST_Intersects(NEW.geometry, placex.geometry))
+ (st_covers(existinggeometry, placex.geometry) OR ST_Intersects(existinggeometry, placex.geometry))
+ AND NOT (st_covers(NEW.geometry, placex.geometry) OR ST_Intersects(NEW.geometry, placex.geometry))
AND rank_search > existingplacex.rank_search AND (rank_search < 28 or name is not null);
END IF;
OR coalesce(existing.isin, '') != coalesce(NEW.isin, '')
OR coalesce(existing.postcode, '') != coalesce(NEW.postcode, '')
OR coalesce(existing.country_code, '') != coalesce(NEW.country_code, '')
+ OR coalesce(existing.admin_level, 15) != coalesce(NEW.admin_level, 15)
OR existing.geometry::text != NEW.geometry::text
THEN
geometry = NEW.geometry
where place_id = existingplacex.place_id;
--- now done as part of insert
--- partition := get_partition(NEW.geometry, existingplacex.country_code);
--- result := update_location(partition, existingplacex.place_id, existingplacex.country_code, NEW.name, existingplacex.rank_search, existingplacex.rank_address, NEW.geometry);
-
END IF;
-- Abort the add (we modified the existing place instead)
END IF;
IF for_place_id IS NULL THEN
- select parent_place_id, country_code, housenumber, rank_address, postcode, name, class, type from placex
+ select parent_place_id, calculated_country_code, housenumber, rank_address, postcode, name, class, type from placex
WHERE place_id = in_place_id and rank_address = 30
INTO for_place_id, searchcountrycode, searchhousenumber, searchrankaddress, searchpostcode, searchhousename, searchclass, searchtype;
END IF;
IF for_place_id IS NULL THEN
for_place_id := in_place_id;
- select country_code, housenumber, rank_address, postcode, null from placex where place_id = for_place_id
+ select calculated_country_code, housenumber, rank_address, postcode, null from placex where place_id = for_place_id
INTO searchcountrycode, searchhousenumber, searchrankaddress, searchpostcode, searchhousename;
END IF;
CASE WHEN class = 'place' and type = 'postcode' THEN 'name' => postcode ELSE name END as name,
class, type, admin_level, true as fromarea, true as isaddress,
CASE WHEN rank_address = 0 THEN 100 WHEN rank_address = 11 THEN 5 ELSE rank_address END as rank_address,
- 0 as distance, country_code
+ 0 as distance, calculated_country_code
from placex
where place_id = for_place_id
LOOP
--RAISE WARNING '%',location;
- IF searchcountrycode IS NULL AND location.country_code IS NOT NULL THEN
- searchcountrycode := location.country_code;
+ IF searchcountrycode IS NULL AND location.calculated_country_code IS NOT NULL THEN
+ searchcountrycode := location.calculated_country_code;
END IF;
IF searchpostcode IS NOT NULL and location.type = 'postcode' THEN
location.isaddress := FALSE;
CASE WHEN class = 'place' and type = 'postcode' THEN 'name' => postcode ELSE name END as name,
class, type, admin_level, fromarea, isaddress,
CASE WHEN address_place_id = for_place_id AND rank_address = 0 THEN 100 WHEN rank_address = 11 THEN 5 ELSE rank_address END as rank_address,
- distance,country_code
+ distance,calculated_country_code
from place_addressline join placex on (address_place_id = placex.place_id)
where place_addressline.place_id = for_place_id
and (cached_rank_address > 0 AND cached_rank_address < searchrankaddress)
and address_place_id != for_place_id
- and (placex.country_code IS NULL OR searchcountrycode IS NULL OR placex.country_code = searchcountrycode OR rank_address < 4)
+ and (placex.calculated_country_code IS NULL OR searchcountrycode IS NULL OR placex.calculated_country_code = searchcountrycode)
order by rank_address desc,isaddress desc,fromarea desc,distance asc,rank_search desc
LOOP
--RAISE WARNING '%',location;
- IF searchcountrycode IS NULL AND location.country_code IS NOT NULL THEN
- searchcountrycode := location.country_code;
+ IF searchcountrycode IS NULL AND location.calculated_country_code IS NOT NULL THEN
+ searchcountrycode := location.calculated_country_code;
END IF;
IF searchpostcode IS NOT NULL and location.type = 'postcode' THEN
location.isaddress := FALSE;
WHEN others THEN return null;
END;
$$
+LANGUAGE plpgsql IMMUTABLE;
+
+DROP TYPE wikipedia_article_match CASCADE;
+create type wikipedia_article_match as (
+ language TEXT,
+ title TEXT,
+ importance FLOAT
+);
+
+CREATE OR REPLACE FUNCTION get_wikipedia_match(extratags HSTORE, country_code varchar(2)) RETURNS wikipedia_article_match
+ AS $$
+DECLARE
+ langs TEXT[];
+ i INT;
+ wiki_article TEXT;
+ wiki_article_title TEXT;
+ wiki_article_language TEXT;
+ result wikipedia_article_match;
+BEGIN
+ langs := ARRAY['english','country','ar','bg','ca','cs','da','de','en','es','eo','eu','fa','fr','ko','hi','hr','id','it','he','lt','hu','ms','nl','ja','no','pl','pt','kk','ro','ru','sk','sl','sr','fi','sv','tr','uk','vi','vo','war','zh'];
+ i := 1;
+ WHILE langs[i] IS NOT NULL LOOP
+ wiki_article := extratags->(case when langs[i] in ('english','country') THEN 'wikipedia' ELSE 'wikipedia:'||langs[i] END);
+ IF wiki_article is not null THEN
+ wiki_article := regexp_replace(wiki_article,E'^(.*?)([a-z]{2,3}).wikipedia.org/wiki/',E'\\2:');
+ wiki_article := regexp_replace(wiki_article,E'^(.*?)([a-z]{2,3}).wikipedia.org/w/index.php\\?title=',E'\\2:');
+ wiki_article := regexp_replace(wiki_article,E'^(.*?)/([a-z]{2,3})/wiki/',E'\\2:');
+ wiki_article := regexp_replace(wiki_article,E'^(.*?)([a-z]{2,3})[=:]',E'\\2:');
+ wiki_article := replace(wiki_article,' ','_');
+ wiki_article_title := trim(split_part(wiki_article, ':', 2));
+ IF wiki_article_title IS NULL OR wiki_article_title = '' THEN
+ wiki_article_title := trim(wiki_article);
+ wiki_article_language := CASE WHEN langs[i] = 'english' THEN 'en' WHEN langs[i] = 'country' THEN get_country_language_code(country_code) ELSE langs[i] END;
+ ELSE
+ wiki_article_language := lower(trim(split_part(wiki_article, ':', 1)));
+ END IF;
+
+ select wikipedia_article.language,wikipedia_article.title,wikipedia_article.importance
+ from wikipedia_article
+ where language = wiki_article_language and
+ (title = wiki_article_title OR title = catch_decode_url_part(wiki_article_title) OR title = replace(catch_decode_url_part(wiki_article_title),E'\\',''))
+ UNION ALL
+ select wikipedia_article.language,wikipedia_article.title,wikipedia_article.importance
+ from wikipedia_redirect join wikipedia_article on (wikipedia_redirect.language = wikipedia_article.language and wikipedia_redirect.to_title = wikipedia_article.title)
+ where wikipedia_redirect.language = wiki_article_language and
+ (from_title = wiki_article_title OR from_title = catch_decode_url_part(wiki_article_title) OR from_title = replace(catch_decode_url_part(wiki_article_title),E'\\',''))
+ order by importance desc limit 1 INTO result;
+
+ IF result.language is not null THEN
+ return result;
+ END IF;
+ END IF;
+ i := i + 1;
+ END LOOP;
+ RETURN NULL;
+END;
+$$
+LANGUAGE plpgsql;
+
+CREATE OR REPLACE FUNCTION quad_split_geometry(geometry GEOMETRY, maxarea FLOAT, maxdepth INTEGER)
+ RETURNS SETOF GEOMETRY
+ AS $$
+DECLARE
+ xmin FLOAT;
+ ymin FLOAT;
+ xmax FLOAT;
+ ymax FLOAT;
+ xmid FLOAT;
+ ymid FLOAT;
+ secgeo GEOMETRY;
+ secbox GEOMETRY;
+ seg INTEGER;
+ geo RECORD;
+ area FLOAT;
+ remainingdepth INTEGER;
+ added INTEGER;
+
+BEGIN
+
+-- RAISE WARNING 'quad_split_geometry: maxarea=%, depth=%',maxarea,maxdepth;
+
+ IF (ST_GeometryType(geometry) not in ('ST_Polygon','ST_MultiPolygon') OR NOT ST_IsValid(geometry)) THEN
+ RETURN NEXT geometry;
+ RETURN;
+ END IF;
+
+ remainingdepth := maxdepth - 1;
+ area := ST_AREA(geometry);
+ IF remainingdepth < 1 OR area < maxarea THEN
+ RETURN NEXT geometry;
+ RETURN;
+ END IF;
+
+ xmin := st_xmin(geometry);
+ xmax := st_xmax(geometry);
+ ymin := st_ymin(geometry);
+ ymax := st_ymax(geometry);
+ secbox := ST_SetSRID(ST_MakeBox2D(ST_Point(ymin,xmin),ST_Point(ymax,xmax)),4326);
+
+ -- if the geometry completely covers the box don't bother to slice any more
+ IF ST_AREA(secbox) = area THEN
+ RETURN NEXT geometry;
+ RETURN;
+ END IF;
+
+ xmid := (xmin+xmax)/2;
+ ymid := (ymin+ymax)/2;
+
+ added := 0;
+ FOR seg IN 1..4 LOOP
+
+ IF seg = 1 THEN
+ secbox := ST_SetSRID(ST_MakeBox2D(ST_Point(xmin,ymin),ST_Point(xmid,ymid)),4326);
+ END IF;
+ IF seg = 2 THEN
+ secbox := ST_SetSRID(ST_MakeBox2D(ST_Point(xmin,ymid),ST_Point(xmid,ymax)),4326);
+ END IF;
+ IF seg = 3 THEN
+ secbox := ST_SetSRID(ST_MakeBox2D(ST_Point(xmid,ymin),ST_Point(xmax,ymid)),4326);
+ END IF;
+ IF seg = 4 THEN
+ secbox := ST_SetSRID(ST_MakeBox2D(ST_Point(xmid,ymid),ST_Point(xmax,ymax)),4326);
+ END IF;
+
+ IF st_intersects(geometry, secbox) THEN
+ secgeo := st_intersection(geometry, secbox);
+ IF NOT ST_IsEmpty(secgeo) AND ST_GeometryType(secgeo) in ('ST_Polygon','ST_MultiPolygon') THEN
+ FOR geo IN select quad_split_geometry(secgeo, maxarea, remainingdepth) as geom LOOP
+ IF NOT ST_IsEmpty(geo.geom) AND ST_GeometryType(geo.geom) in ('ST_Polygon','ST_MultiPolygon') THEN
+ added := added + 1;
+ RETURN NEXT geo.geom;
+ END IF;
+ END LOOP;
+ END IF;
+ END IF;
+ END LOOP;
+
+ RETURN;
+END;
+$$
+LANGUAGE plpgsql;
+
+CREATE OR REPLACE FUNCTION split_geometry(geometry GEOMETRY)
+ RETURNS SETOF GEOMETRY
+ AS $$
+DECLARE
+ geo RECORD;
+BEGIN
+ -- 10000000000 is ~~ 1x1 degree
+ FOR geo IN select quad_split_geometry(geometry, 0.25, 20) as geom LOOP
+ RETURN NEXT geo.geom;
+ END LOOP;
+ RETURN;
+END;
+$$
LANGUAGE plpgsql;
projects / nominatim.git / blobdiff