kopia lustrzana https://github.com/hholzgra/ocitysmap
44 wiersze
1.6 KiB
SQL
44 wiersze
1.6 KiB
SQL
-- ocitysmap, city map and street index generator from OpenStreetMap data
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-- Copyright (C) 2009 David Decotigny
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-- Copyright (C) 2009 Frédéric Lehobey
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-- Copyright (C) 2009 David Mentré
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-- Copyright (C) 2009 Maxime Petazzoni
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-- Copyright (C) 2009 Thomas Petazzoni
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-- Copyright (C) 2009 Gaël Utard
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-- This program is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU Affero General Public License as
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-- published by the Free Software Foundation, either version 3 of the
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-- License, or any later version.
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU Affero General Public License for more details.
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-- You should have received a copy of the GNU Affero General Public License
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-- along with this program. If not, see <http://www.gnu.org/licenses/>.
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-- Create a view that associates each city with an area representing
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-- its territory, based on the administrative boundaries available in
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-- OSM database. For french cities, these boundaries are admin_level 8,
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-- and are for the moment only available for part of the country.
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create or replace view cities_area
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as select name as city, st_buildarea(way) as area
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from planet_osm_line where boundary='administrative' and admin_level='8';
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-- Create an aggregate used to build the list of squares that each
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-- street intersects
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CREATE AGGREGATE textcat_all(
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basetype = text,
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sfunc = textcat,
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stype = text,
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initcond = ''
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);
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