From fd7ccedce447ad8eb3c5abe696356b3e00ba8f57 Mon Sep 17 00:00:00 2001 From: Regina Obe Date: Tue, 15 Feb 2011 06:36:33 +0000 Subject: [PATCH] Change to transform the point if not in nad83 long lat already git-svn-id: http://svn.osgeo.org/postgis/trunk@6820 b70326c6-7e19-0410-871a-916f4a2858ee --- .../tiger_2010/geocode/reverse_geocode.sql | 21 ++++++++++++------- 1 file changed, 14 insertions(+), 7 deletions(-) diff --git a/extras/tiger_geocoder/tiger_2010/geocode/reverse_geocode.sql b/extras/tiger_geocoder/tiger_2010/geocode/reverse_geocode.sql index ad6dd79b7..e8479be53 100644 --- a/extras/tiger_geocoder/tiger_2010/geocode/reverse_geocode.sql +++ b/extras/tiger_geocoder/tiger_2010/geocode/reverse_geocode.sql @@ -6,7 +6,7 @@ -- This function given a point try to determine the approximate street address (norm_addy form) -- and array of cross streets, as well as interpolated points along the streets -- Use case example an address at the intersection of 3 streets: SELECT pprint_addy(r.addy[1]) As st1, pprint_addy(r.addy[2]) As st2, pprint_addy(r.addy[3]) As st3, array_to_string(r.street, ',') FROM reverse_geocode(ST_GeomFromText('POINT(-71.057811 42.358274)',4269)) As r; ---set search_path=tiger,public; +set search_path=tiger,public; CREATE OR REPLACE FUNCTION reverse_geocode( IN pt geometry, IN include_strnum_range boolean, @@ -22,13 +22,20 @@ DECLARE var_strnum varchar; var_primary_line geometry := NULL; var_primary_dist numeric(10,2) ; + var_pt geometry; BEGIN IF pt IS NULL THEN RETURN; + ELSE + IF ST_SRID(pt) = 4269 THEN + var_pt := pt; + ELSE + var_pt := ST_Transform(pt, 4269); + END IF; END IF; -- Determine state tables to check -- this is needed to take advantage of constraint exclusion - var_states := ARRAY(SELECT statefp FROM state WHERE ST_Intersects(the_geom, pt) ); + var_states := ARRAY(SELECT statefp FROM state WHERE ST_Intersects(the_geom, var_pt) ); IF array_upper(var_states, 1) IS NULL THEN -- We don't have any data for this state RETURN; @@ -42,15 +49,15 @@ BEGIN (SELECT z.place FROM zip_state_loc AS z WHERE z.zip = foo.zip and z.statefp = foo.statefp LIMIT 1) As place, foo.intpt, side, to_number(fromhn, '999999') As fromhn, to_number(tohn, '999999') As tohn, ST_GeometryN(ST_Multi(line),1) As line, foo.dist FROM - (SELECT e.the_geom As line, e.fullname, a.zip, s.stusps, ST_ClosestPoint(e.the_geom, pt) As intpt, e.statefp, a.side, a.fromhn, a.tohn, ST_Distance_Sphere(e.the_geom, pt) As dist + (SELECT e.the_geom As line, e.fullname, a.zip, s.stusps, ST_ClosestPoint(e.the_geom, var_pt) As intpt, e.statefp, a.side, a.fromhn, a.tohn, ST_Distance_Sphere(e.the_geom, var_pt) As dist FROM edges AS e INNER JOIN state As s ON (e.statefp = s.statefp AND s.statefp = ANY(var_states) ) INNER JOIN faces As fl ON (e.tfidl = fl.tfid AND e.statefp = fl.statefp) INNER JOIN faces As fr ON (e.tfidr = fr.tfid AND e.statefp = fr.statefp) INNER JOIN addr As a ON ( e.tlid = a.tlid AND e.statefp = a.statefp AND - ( ( ST_Contains(fl.the_geom, pt) AND a.side = 'L') OR ( ST_Contains(fr.the_geom, pt) AND a.side = 'R' ) ) ) + ( ( ST_Contains(fl.the_geom, var_pt) AND a.side = 'L') OR ( ST_Contains(fr.the_geom, var_pt) AND a.side = 'R' ) ) ) -- INNER JOIN zip_state_loc As z ON (a.statefp = z.statefp AND a.zip = z.zip) /** really slow with this join **/ - WHERE e.statefp = ANY(var_states) AND a.statefp = ANY(var_states) AND ST_DWithin(e.the_geom, pt, 0.005) - ORDER BY ST_Distance_Sphere(e.the_geom, pt) LIMIT 4) As foo + WHERE e.statefp = ANY(var_states) AND a.statefp = ANY(var_states) AND ST_DWithin(e.the_geom, var_pt, 0.005) + ORDER BY ST_Distance_Sphere(e.the_geom, var_pt) LIMIT 4) As foo WHERE dist < 150 --less than 150 m ORDER BY foo.fullname, foo.dist) As f ORDER BY f.dist LOOP IF var_primary_line IS NULL THEN --this is the first time in the loop and our primary guess @@ -65,7 +72,7 @@ BEGIN --interploate the number -- note that if fromhn > tohn we will be subtracting which is what we want -- We only consider differential distances are reeally close from our primary pt IF var_redge.dist < var_primary_dist*1.1 THEN - var_strnum := (var_redge.fromhn + ST_Line_Locate_Point(var_redge.line, pt)*(var_redge.tohn - var_redge.fromhn))::numeric(10)::varchar; + var_strnum := (var_redge.fromhn + ST_Line_Locate_Point(var_redge.line, var_pt)*(var_redge.tohn - var_redge.fromhn))::numeric(10)::varchar; var_addy := normalize_address( COALESCE(var_strnum::varchar || ' ', '') || var_redge.fullname || ', ' || var_redge.place || ', ' || var_redge.stusps || ' ' || var_redge.zip); addy := array_append(addy, var_addy); END IF;