139 lines
3.5 KiB
SQL
139 lines
3.5 KiB
SQL
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-- vue simple pour les longueurs directe en 3948
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SELECT
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ogc_fid, name, '' AS secteur,
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TRUNC( ST_Length(the_geom)::numeric , 0) AS longueur_m,
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TRUNC( (ST_Length(the_geom)/1000)::numeric , 3) AS longueur_km,
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the_geom
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FROM phase_1_trace_3948 ;
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-- vue simple sur la couche en 3857
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SELECT
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ogc_fid, name, '' AS secteur,
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TRUNC( ST_Length(ST_Transform(the_geom,3857))::numeric , 0) AS longueur_m,
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TRUNC( (ST_Length(ST_Transform(the_geom,3857))/1000)::numeric , 3) AS longueur_km,
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the_geom
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FROM phase_1_trace ;
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-- crée une polyligne qui part de l'origine et qui fait 50 % de la longueur d'origine
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DROP VIEW test_line ;
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CREATE VIEW test_line AS
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SELECT
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ogc_fid,
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ST_LineSubstring(the_geom, 0.0, 0.5)::geometry(Linestring,4326) AS the_geom,
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TRUNC( ST_Length(ST_Transform(ST_LineSubstring(the_geom, 0.0, 0.5),3948))::numeric , 0) AS longueur_m
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FROM phase_1_trace_3948
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WHERE ogc_fid = 9 ;
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-- et le point terminal
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DROP VIEW test_point ;
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CREATE VIEW test_point AS
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SELECT
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ogc_fid,
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ST_Line_Interpolate_Point(the_geom, 0.5)::geometry(Point, 3948) AS the_geom
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FROM phase_1_trace_3948
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WHERE ogc_fid = 9 ;
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-- sélection simple avec id, géométrie, longueur, nb de sections et coeff pour les fonctions
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SELECT
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ogc_fid,
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TRUNC(ST_Length(the_geom)::numeric,0) AS longueur,
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TRUNC((ST_Length(the_geom)/1000)::numeric,2) AS nb_sections,
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1 / TRUNC((ST_Length(the_geom)/1000)::numeric,2)::numeric AS part,
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ST_LineMerge(the_geom) AS the_geom
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FROM phase_1_trace_3948
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-- remplit une table avec l'extraction de
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TRUNCATE phase_1_pk_auto ;
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INSERT INTO phase_1_pk_auto
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SELECT ogc_fid AS id, ((dp).geom)::geometry(Point,3948) AS the_geom
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FROM
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(
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SELECT ogc_fid, ST_DumpPoints(ST_Segmentize(the_geom, 1000)) AS dp
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FROM phase_1_trace_3948
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) AS foo
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-- cette vue crée des tronçons de 940 m à partir des longs tracés
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DROP VIEW phase_1_trace_troncons_3948 ;
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CREATE VIEW phase_1_trace_troncons_3948 AS
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SELECT
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row_number() over() as uid,
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ogc_fid,
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ST_LineSubstring(the_geom, 940.00*n/length,
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CASE
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WHEN 940.00*(n+1) < length THEN 940.00*(n+1)/length
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ELSE 1
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END) AS the_geom
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FROM
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(SELECT
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ogc_fid,
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ST_LineMerge(the_geom)::geometry(LineString,3948) AS the_geom,
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ST_Length(the_geom) As length
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FROM phase_1_trace_3948
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) AS t
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CROSS JOIN generate_series(0,10000) AS n
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WHERE n*940.00/length < 1 ;
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-- et le point terminal
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DROP VIEW phase_1_pk_auto_3948 ;
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CREATE VIEW phase_1_pk_auto_3948 AS
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SELECT
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uid,
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ST_Line_Interpolate_Point(the_geom, 1)::geometry(Point, 3948) AS the_geom
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FROM phase_1_trace_troncons_3948 ;
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-- tableau de synthèse nb km par secteur
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SELECT
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secteur_id, secteur_nom_br, secteur_nom_fr,
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SUM(longueur) AS longueur_m,
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TRUNC( SUM(longueur)/1000::numeric , 3) AS longueur_km,
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ROUND( SUM(longueur)/1000::numeric ) AS longueur_km_arrondi
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FROM v_phase_1_trace_troncons_3948
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GROUP BY secteur_id, secteur_nom_br, secteur_nom_fr
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ORDER BY secteur_id ;
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SELECT
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st_length(ST_Collect(the_geom)) AS longueur_m,
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ROUND( st_length(ST_Collect(the_geom))::numeric/1000::numeric ) AS longueur_km,
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ST_Collect(the_geom) AS the_geom
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FROM phase_2_trace_pgr
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TRUNC( a.cost::numeric , 0) AS longueur_m,
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TRUNC( a.agg_cost::numeric , 0) AS longueur_cumul_m,
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--TRUNC( a.cost::numeric/1000::numeric , 3) AS longueur_km,
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TRUNC( a.agg_cost::numeric/1000::numeric , 3) AS longueur_cumul_km,
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--ROUND( a.cost::numeric/1000::numeric ) AS longueur_km_arrondi,
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ROUND( a.agg_cost::numeric/1000::numeric ) AS longueur_cumul_km_arrondi,
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