X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/cea93e7244cb5fb5ca260a83377d661ab99e8491..4e6d729529c94486a50cf135dfbbdcf841790200:/db/structure.sql diff --git a/db/structure.sql b/db/structure.sql index b5c4ec01d..89a62626e 100644 --- a/db/structure.sql +++ b/db/structure.sql @@ -128,31 +128,6 @@ CREATE TYPE public.user_status_enum AS ENUM ( ); --- --- Name: maptile_for_point(bigint, bigint, integer); Type: FUNCTION; Schema: public; Owner: - --- - -CREATE FUNCTION public.maptile_for_point(scaled_lat bigint, scaled_lon bigint, zoom integer) RETURNS integer - LANGUAGE plpgsql IMMUTABLE - AS $$ -DECLARE - lat CONSTANT DOUBLE PRECISION := scaled_lat / 10000000.0; - lon CONSTANT DOUBLE PRECISION := scaled_lon / 10000000.0; - zscale CONSTANT DOUBLE PRECISION := 2.0 ^ zoom; - pi CONSTANT DOUBLE PRECISION := 3.141592653589793; - r_per_d CONSTANT DOUBLE PRECISION := pi / 180.0; - x int4; - y int4; -BEGIN - -- straight port of the C code. see db/functions/maptile.c - x := floor((lon + 180.0) * zscale / 360.0); - y := floor((1.0 - ln(tan(lat * r_per_d) + 1.0 / cos(lat * r_per_d)) / pi) * zscale / 2.0); - - RETURN (x << zoom) | y; -END; -$$; - - -- -- Name: tile_for_point(integer, integer); Type: FUNCTION; Schema: public; Owner: - --