Gestion des zones de boucles
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@ -257,12 +257,43 @@ CREATE TABLE phase_2_point_nettoyage
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ALTER TABLE phase_2_point_nettoyage OWNER to redadeg;
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-- dans la base redadeg on chargera la couche osm_roads qui a été calculée
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-- à partir de données OSM
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-- couche de polygones pour supprimer le contenu de osm_roads_pgr pour la gestion des boucles
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DROP TABLE IF EXISTS osm_roads_pgr_patch_mask ;
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CREATE TABLE osm_roads_mask
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(
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id serial,
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name text,
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the_geom geometry,
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CONSTRAINT osm_roads_pgr_patch_mask_pkid PRIMARY KEY (id),
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CONSTRAINT enforce_geotype_the_geom CHECK (geometrytype(the_geom) = 'POLYGON'::text),
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CONSTRAINT enforce_srid_the_geom CHECK (st_srid(the_geom) = 2154)
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);
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ALTER TABLE osm_roads_pgr_patch_mask OWNER to redadeg;
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-- 1. création d'un schéma qui va accueillir le réseau topologique de la couche osm_roads
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SELECT topology.CreateTopology('osm_roads_topo', 2154);
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-- couche jumelle de osm_roads mais avec des lignes gérées à la main pour les boucles
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DROP TABLE IF EXISTS osm_roads_pgr_patch ;
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CREATE TABLE osm_roads_pgr_patch
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(
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id serial,
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osm_id bigint,
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highway text,
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type text,
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oneway text,
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ref text,
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name_fr text,
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name_br text,
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source bigint,
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target bigint,
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cost double precision,
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reverse_cost double precision,
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the_geom geometry,
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CONSTRAINT osm_roads_pgr_patch_pkey PRIMARY KEY (id),
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CONSTRAINT enforce_geotype_the_geom CHECK (geometrytype(the_geom) = 'LINESTRING'::text OR geometrytype(the_geom) = 'MULTILINESTRING'::text),
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CONSTRAINT enforce_srid_the_geom CHECK (st_srid(the_geom) = 2154)
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);
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ALTER TABLE osm_roads_pgr_patch OWNER to redadeg;
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-- la table qui va recevoir le résultat du calcul d'itinéraire
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33
scripts/patch_osm_roads_pgr.sql
Normal file
33
scripts/patch_osm_roads_pgr.sql
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@ -0,0 +1,33 @@
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-- suppression des objets couche osm_roads_pgr qui intersectent avec les zones de boucles
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DELETE FROM osm_roads_pgr WHERE id IN
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(
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SELECT a.id
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FROM osm_roads_pgr a, osm_roads_pgr_patch_mask m
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WHERE ST_INTERSECTS(a.the_geom, m.the_geom)
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);
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-- collage des objets de la couche osm_roads_pgr_patch à la place des objets supprimés
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INSERT INTO osm_roads_pgr
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SELECT
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0-a.id AS id,
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a.osm_id, a.highway, a.type, a.oneway, a.ref, a.name_fr, a.name_br,
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NULL, NULL, NULL, NULL,
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a.the_geom
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FROM osm_roads_pgr_patch a, osm_roads_pgr_patch_mask m
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WHERE ST_INTERSECTS(a.the_geom, m.the_geom);
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-- calcul des 2 attributs de coût (= longueur)
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UPDATE osm_roads_pgr
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SET cost = st_length(the_geom), reverse_cost = st_length(the_geom)
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WHERE id < 0 ;
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-- calcul de la topologie pgRouting sur les zones de masque
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SELECT pgr_createTopology('osm_roads_pgr', 0.001, 'the_geom', 'id', 'source', 'target', rows_where := 'id < 0', clean := false);
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@ -84,6 +84,14 @@ echo " fait"
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echo "nettoyage de la couche de routage par les points ciblés"
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$PSQL -h $DB_HOST -U $DB_USER -d $DB_NAME -c "UPDATE osm_roads_pgr SET cost = 1000000, reverse_cost = 1000000 WHERE id IN (SELECT r.id FROM osm_roads_pgr r JOIN phase_2_point_nettoyage p ON r.id = p.edge_id);"
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echo " fait"
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echo ""
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# patch de la couche de routage sur les zones de boucles
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echo "patch de la couche de routage sur les zones de boucles"
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$PSQL -h $DB_HOST -U $DB_USER -d $DB_NAME < patch_osm_roads_pgr.sql
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echo " fait"
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echo ""
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# on fait la requête qui va donner une liste de PK de secteurs
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