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reduce precision of computed centroids to 7 digits

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This commit is contained in:
Sarah Hoffmann
2025-07-29 21:25:14 +02:00
parent 866e6bade9
commit 1111597db5
2 changed files with 5 additions and 5 deletions
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2
lib-sql/functions/placex_triggers.sql
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@@ -780,7 +780,7 @@ BEGIN
SELECT count(*)>0 FROM pg_tables WHERE tablename = classtable and schemaname = current_schema() INTO result;
IF result THEN
EXECUTE 'INSERT INTO ' || classtable::regclass || ' (place_id, centroid) VALUES ($1,$2)'
USING NEW.place_id, ST_Centroid(NEW.geometry);
USING NEW.place_id, NEW.centroid;
END IF;
{% endif %} -- not disable_diff_updates

8
lib-sql/functions/utils.sql
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@@ -2,7 +2,7 @@
--
-- This file is part of Nominatim. (https://nominatim.org)
--
-- Copyright (C) 2022 by the Nominatim developer community.
-- Copyright (C) 2025 by the Nominatim developer community.
-- For a full list of authors see the git log.
-- Assorted helper functions for the triggers.
@@ -14,14 +14,14 @@ DECLARE
geom_type TEXT;
BEGIN
geom_type := ST_GeometryType(place);
IF geom_type = ' ST_Point' THEN
IF geom_type = 'ST_Point' THEN
RETURN place;
END IF;
IF geom_type = 'ST_LineString' THEN
RETURN ST_LineInterpolatePoint(place, 0.5);
RETURN ST_ReducePrecision(ST_LineInterpolatePoint(place, 0.5), 0.0000001);
END IF;
RETURN ST_PointOnSurface(place);
RETURN ST_ReducePrecision(ST_PointOnSurface(place), 0.0000001);
END;
$$
LANGUAGE plpgsql IMMUTABLE PARALLEL SAFE;