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change tiger housenumber format to save as lines instead of points and thus new interpolation

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This commit is contained in:
Markus Gail
2016-03-07 11:07:33 +01:00
parent a50bf1c944
commit bc449e10be
5 changed files with 70 additions and 46 deletions
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21
sql/tiger_import_start.sql
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@@ -1,17 +1,14 @@
DROP TABLE IF EXISTS location_property_tiger_import;
CREATE TABLE location_property_tiger_import () INHERITS (location_property) {ts:aux-data};
CREATE TABLE location_property_tiger_import (linegeo GEOMETRY, place_id BIGINT, partition INTEGER, parent_place_id BIGINT, startnumber INTEGER, endnumber INTEGER, interpolationtype TEXT, street TEXT, isin TEXT, postcode TEXT);
CREATE OR REPLACE FUNCTION tigger_create_interpolation(linegeo GEOMETRY, in_startnumber INTEGER,
CREATE OR REPLACE FUNCTION tiger_line_import(linegeo GEOMETRY, in_startnumber INTEGER,
in_endnumber INTEGER, interpolationtype TEXT,
in_street TEXT, in_isin TEXT, in_postcode TEXT) RETURNS INTEGER
AS $$
DECLARE
startnumber INTEGER;
endnumber INTEGER;
stepsize INTEGER;
housenum INTEGER;
newpoints INTEGER;
numberrange INTEGER;
rangestartnumber INTEGER;
place_centroid GEOMETRY;
@@ -32,7 +29,7 @@ BEGIN
numberrange := endnumber - startnumber;
rangestartnumber := startnumber;
IF (interpolationtype = 'odd' AND startnumber%2 = 0) OR (interpolationtype = 'even' AND startnumber%2 = 1) THEN
startnumber := startnumber + 1;
stepsize := 2;
@@ -75,15 +72,11 @@ BEGIN
END LOOP;
END IF;
newpoints := 0;
FOR housenum IN startnumber..endnumber BY stepsize LOOP
insert into location_property_tiger_import (place_id, partition, parent_place_id, housenumber, postcode, centroid)
values (nextval('seq_place'), out_partition, out_parent_place_id, housenum, in_postcode,
ST_LineInterpolatePoint(linegeo, (housenum::float-rangestartnumber::float)/numberrange::float));
newpoints := newpoints + 1;
END LOOP;
--insert street(line) into import table
insert into location_property_tiger_import (linegeo, place_id, partition, parent_place_id, startnumber, endnumber, interpolationtype, street, isin, postcode)
values (linegeo, nextval('seq_place'), out_partition, out_parent_place_id, startnumber, endnumber, interpolationtype, in_street, in_isin, in_postcode);
RETURN newpoints;
RETURN 1;
END;
$$
LANGUAGE plpgsql;