pgsql gemo 空间数据转经纬度
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篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了pgsql gemo 空间数据转经纬度相关的知识，希望对你有一定的参考价值。
st_asgeojson(geoc_wgs84togcj02 (location)) as location,// 空间数据转经纬度
update t_cd_vistor_heat_details set boundary =ST_SetSRID(ST_MakePoint(104.043759, 30.602281),4326) 单个坐标转空间数据
update t_cd_vistor_heat_details set boundary
=ST_GeomFromText('MultiLineString((113.39607238769531 34.19425964355469,113.85887145996094 34.12559509277344))', 4326); 多线坐标转经纬度
select st_asgeojson ( geoc_wgs84togcj02 ( ST_Centroid(t.center_point)) ) AS location
查中心点
多面转空间数据
select ST_GeomFromText('SRID=4326;MultiPolygon(((104.1225802065123 30.53558813958188,104.1222649275854 30.53557624245053,104.1230204066675 30.53561193384456,104.1225802065123 30.53558813958188)))');CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02_polygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
source_npoints integer;
single_line geometry;
single_line_trans geometry;
single_polygon geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_Polygon' THEN
RETURN null;
END IF;
FOR single_polygon IN SELECT ST_ExteriorRing ((st_dumprings($1)).geom) as geom LOOP
source_npoints := ST_NPoints(single_polygon);
single_line := ST_RemovePoint(single_polygon, source_npoints - 1);
single_line_trans := geoc_wgs84togcj02_line(single_line);
target_parts := array_append(target_parts, ST_AddPoint(single_line_trans, ST_PointN(single_line_trans, 1)));
END LOOP;
SELECT ST_MakePolygon(target_parts[1], target_parts[2:array_upper(target_parts, 1)]) INTO final_geom;
-- raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02_point"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
lon numeric;
lat numeric;
d jsonb;
dlon numeric;
dlat numeric;
BEGIN
if st_geometrytype(geom) != 'ST_Point' then
return null;
end if;
lon := st_x(geom);
lat := st_y(geom);
if (geoc_is_in_china_bbox(lon, lat) = false) then
return geom;
end if;
d := geoc_delta(lon, lat);
dlon := d->0;
dlat := d->1;
return st_makepoint(lon + dlon,lat + dlat);
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02"("coord" _numeric)
RETURNS "pg_catalog"."_numeric" AS $BODY$
DECLARE
ret numeric[];
dLon numeric;
dlat numeric;
lon numeric;
lat numeric;
d jsonb;
-- coord ARRAY;
BEGIN
lon := coord[1];
lat := coord[2];
if (geoc_is_in_china_bbox(lon, lat) = false) then
return coord;
end if;
d := geoc_delta(lon, lat);
dlon := d->0;
dlat := d->1;
ret := ARRAY[lon + dlon , lat + dlat];
return ret;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02_multipolygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
single_polygon geometry;
single_polygon_trans geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_MultiPolygon' THEN
RETURN null;
END IF;
FOR single_polygon IN SELECT (ST_Dump($1)).geom LOOP
single_polygon_trans := geoc_wgs84togcj02_polygon(single_polygon);
target_parts := array_append(target_parts,single_polygon_trans);
END LOOP;
SELECT st_multi(ST_Union(target_parts)) INTO final_geom;
raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02_multipoint"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_wgs84togcj02_point(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02_multiline"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_wgs84togcj02_line(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02_line"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
p_p geometry;
p_t geometry;
z_t geometry;
i int;
BEGIN
i:=1;
while i <= st_npoints(geom) LOOP
p_p := st_pointn(geom,i);
p_t := geoc_wgs84togcj02_point(p_p);
geom:=st_setpoint(geom,i-1,p_t);
i:=i+1;
end LOOP;
return geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
IF st_srid(geom) != 4490 and st_srid(geom) != 4326 THEN
RETURN null;
end if;
CASE ST_GeometryType(geom)
when 'ST_LineString' then
return geoc_wgs84togcj02_line(geom);
when 'ST_MultiLineString' then
return geoc_wgs84togcj02_multiline(geom);
when 'ST_Point' then
return geoc_wgs84togcj02_point(geom);
when 'ST_MultiPoint' then
return geoc_wgs84togcj02_multipoint(geom);
when 'ST_Polygon' then
return geoc_wgs84togcj02_polygon(geom);
when 'ST_MultiPolygon' then
return geoc_wgs84togcj02_multipolygon(geom);
ELSE
RETURN null;
END CASE;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84tobd09_polygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
source_npoints integer;
single_line geometry;
single_line_trans geometry;
single_polygon geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_Polygon' THEN
RETURN null;
END IF;
FOR single_polygon IN SELECT ST_ExteriorRing ((st_dumprings($1)).geom) as geom LOOP
source_npoints := ST_NPoints(single_polygon);
single_line := ST_RemovePoint(single_polygon, source_npoints - 1);
single_line_trans := geoc_wgs84tobd09_line(single_line);
target_parts := array_append(target_parts, ST_AddPoint(single_line_trans, ST_PointN(single_line_trans, 1)));
END LOOP;
SELECT ST_MakePolygon(target_parts[1], target_parts[2:array_upper(target_parts, 1)]) INTO final_geom;
-- raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84tobd09_point"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
lon numeric;
lat numeric;
bd_point geometry;
gcj_point geometry;
BEGIN
if st_geometrytype(geom) != 'ST_Point' then
return null;
end if;
lon := st_x(geom);
lat := st_y(geom);
if geoc_is_in_china_bbox(lon, lat) = false THEN
return geom;
end if;
gcj_point = geoc_wgs84togcj02_point(geom);
bd_point = geoc_gcj02tobd09_point(gcj_point);
return bd_point;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84tobd09_multipolygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
single_polygon geometry;
single_polygon_trans geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_MultiPolygon' THEN
RETURN null;
END IF;
FOR single_polygon IN SELECT (ST_Dump($1)).geom LOOP
single_polygon_trans := geoc_wgs84tobd09_polygon(single_polygon);
target_parts := array_append(target_parts,single_polygon_trans);
END LOOP;
SELECT st_multi(ST_Union(target_parts)) INTO final_geom;
raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84tobd09_multipoint"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_wgs84tobd09_point(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84tobd09_multiline"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_wgs84tobd09_line(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84tobd09_line"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
p_p geometry;
p_t geometry;
z_t geometry;
i int;
BEGIN
i:=1;
while i <= st_npoints(geom) LOOP
p_p := st_pointn(geom,i);
p_t := geoc_wgs84tobd09_point(p_p);
geom:=st_setpoint(geom,i-1,p_t);
i:=i+1;
end LOOP;
return geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84tobd09"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
BEGIN
-- IF st_srid(geom) != '4490' THEN
-- RETURN null;
-- end if;
-- IF st_srid(geom) != '4326' THEN
-- RETURN null;
-- end if;
case ST_GeometryType(geom)
when 'ST_LineString' then
return geoc_wgs84tobd09_line(geom);
when 'ST_MultiLineString' then
return geoc_wgs84tobd09_multiline(geom);
when 'ST_Point' then
return geoc_wgs84tobd09_point(geom);
when 'ST_MultiPoint' then
return geoc_wgs84tobd09_multipoint(geom);
when 'ST_Polygon' then
return geoc_wgs84tobd09_polygon(geom);
when 'ST_MultiPolygon' then
return geoc_wgs84tobd09_multipolygon(geom);
ELSE
RETURN null;
END CASE;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_transform_lon"("x" numeric, "y" numeric)
RETURNS "pg_catalog"."numeric" AS $BODY$
DECLARE
ret numeric;
BEGIN
ret := 300 + x + 2 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * sqrt(abs(x));
ret :=ret + (20 * sin(6 * x * pi()) + 20 * sin(2 * x * pi())) * 2 / 3;
ret :=ret + (20 * sin(x * pi()) + 40 * sin(x / 3 * pi())) * 2 / 3;
ret :=ret + (150 * sin(x / 12 * pi()) + 300 * sin(x / 30 * pi())) * 2 / 3;
return ret;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_transform_lat"("x" numeric, "y" numeric)
RETURNS "pg_catalog"."numeric" AS $BODY$
DECLARE
ret numeric;
BEGIN
ret := -100 + 2 * x + 3 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * sqrt(abs(x));
ret := ret + (20 * sin(6 * x * PI()) + 20 * sin(2 * x * PI())) * 2 / 3;
ret := ret +(20 * sin(y * PI()) + 40 * sin(y / 3 * PI())) * 2 / 3;
ret := ret +(160 * sin(y / 12 * PI()) + 320 * sin(y * PI() / 30)) * 2 / 3;
return ret;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_is_in_china_bbox"("lon" numeric, "lat" numeric)
RETURNS "pg_catalog"."bool" AS $BODY$
DECLARE
BEGIN
return lon >= 72.004 and lon <= 137.8347 and lat >= 0.8293 and lat <= 55.8271;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_delta"("lon" numeric, "lat" numeric)
RETURNS "pg_catalog"."jsonb" AS $BODY$
DECLARE
ret varchar;
dLon numeric;
dlat numeric;
radLat numeric;
magic numeric;
sqrtMagic numeric;
ee numeric;
a numeric;
BEGIN
ee := 0.006693421622965823;
a := 6378245;
dLon := geoc_transform_lon(lon - 105, lat - 35);
dLat := geoc_transform_lat(lon - 105, lat - 35);
--raise NOTICE 'dLon的值为： %',dLon;
--raise NOTICE 'dLat的值为： %',dLat;
radLat := lat / 180 * pi();
magic = sin(radLat);
magic = 1 - ee * magic * magic;
sqrtMagic := sqrt(magic);
dLon = (dLon * 180) / (a / sqrtMagic * cos(radLat) * pi());
dLat = (dLat * 180) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi());
ret :='['||dLon||','||dLat||']';
return ret::jsonb;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02towgs84_line"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
p_p geometry;
p_t geometry;
z_t geometry;
i int;
BEGIN
i:=1;
while i <= st_npoints(geom) LOOP
p_p := st_pointn(geom,i);
p_t := geoc_gcj02towgs84_point(p_p);
geom:=st_setpoint(geom,i-1,p_t);
i:=i+1;
end LOOP;
return geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02towgs84_multiline"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_gcj02towgs84_line(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02towgs84_multipoint"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_gcj02towgs84_point(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02towgs84_multipolygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
single_polygon geometry;
single_polygon_trans geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_MultiPolygon' THEN
RETURN source_geom;
END IF;
FOR single_polygon IN SELECT (ST_Dump($1)).geom LOOP
single_polygon_trans := geoc_gcj02towgs84_polygon(single_polygon);
target_parts := array_append(target_parts,single_polygon_trans);
END LOOP;
SELECT st_multi(ST_Union(target_parts)) INTO final_geom;
raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02towgs84_point"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
tempPoint numeric[];
wgsLon numeric;
wgsLat numeric;
lon numeric;
lat numeric;
BEGIN
if st_geometrytype(geom) != 'ST_Point' then
return geom;
end if;
lon := st_x(geom);
lat := st_y(geom);
if geoc_is_in_china_bbox(lon, lat) = false THEN
return geom;
end if;
tempPoint := geoc_wgs84togcj02(ARRAY[lon, lat]);
wgsLon := lon*2 - tempPoint[1];
wgsLat := lat*2 - tempPoint[2];
return st_makepoint(wgsLon,wgsLat);
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02towgs84_polygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
source_npoints integer;
single_line geometry;
single_line_trans geometry;
single_polygon geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_Polygon' THEN
RETURN source_geom;
END IF;
FOR single_polygon IN SELECT ST_ExteriorRing ((st_dumprings($1)).geom) as geom LOOP
source_npoints := ST_NPoints(single_polygon);
single_line := ST_RemovePoint(single_polygon, source_npoints - 1);
single_line_trans := geoc_gcj02towgs84_line(single_line);
target_parts := array_append(target_parts, ST_AddPoint(single_line_trans, ST_PointN(single_line_trans, 1)));
END LOOP;
SELECT ST_MakePolygon(target_parts[1], target_parts[2:array_upper(target_parts, 1)]) INTO final_geom;
-- raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02towgs84"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
BEGIN
IF st_srid(geom) != 4490 and st_srid(geom) != 4326 THEN
RETURN null;
end if;
case ST_GeometryType(geom)
when 'ST_LineString' then
return geoc_gcj02towgs84_line(geom);
when 'ST_MultiLineString' then
return geoc_gcj02towgs84_multiline(geom);
when 'ST_Point' then
return geoc_gcj02towgs84_point(geom);
when 'ST_MultiPoint' then
return geoc_gcj02towgs84_multipoint(geom);
when 'ST_Polygon' then
return geoc_gcj02towgs84_polygon(geom);
when 'ST_MultiPolygon' then
return geoc_gcj02towgs84_multipolygon(geom);
ELSE
RETURN null;
END CASE;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_is_in_china_bbox"("lon" numeric, "lat" numeric)
RETURNS "pg_catalog"."bool" AS $BODY$
DECLARE
BEGIN
return lon >= 72.004 and lon <= 137.8347 and lat >= 0.8293 and lat <= 55.8271;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_transform_lat"("x" numeric, "y" numeric)
RETURNS "pg_catalog"."numeric" AS $BODY$
DECLARE
ret numeric;
BEGIN
ret := -100 + 2 * x + 3 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * sqrt(abs(x));
ret := ret + (20 * sin(6 * x * PI()) + 20 * sin(2 * x * PI())) * 2 / 3;
ret := ret +(20 * sin(y * PI()) + 40 * sin(y / 3 * PI())) * 2 / 3;
ret := ret +(160 * sin(y / 12 * PI()) + 320 * sin(y * PI() / 30)) * 2 / 3;
return ret;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_transform_lon"("x" numeric, "y" numeric)
RETURNS "pg_catalog"."numeric" AS $BODY$
DECLARE
ret numeric;
BEGIN
ret := 300 + x + 2 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * sqrt(abs(x));
ret :=ret + (20 * sin(6 * x * pi()) + 20 * sin(2 * x * pi())) * 2 / 3;
ret :=ret + (20 * sin(x * pi()) + 40 * sin(x / 3 * pi())) * 2 / 3;
ret :=ret + (150 * sin(x / 12 * pi()) + 300 * sin(x / 30 * pi())) * 2 / 3;
return ret;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02_line"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
p_p geometry;
p_t geometry;
z_t geometry;
i int;
BEGIN
i:=1;
while i <= st_npoints(geom) LOOP
p_p := st_pointn(geom,i);
p_t := geoc_wgs84togcj02_point(p_p);
geom:=st_setpoint(geom,i-1,p_t);
i:=i+1;
end LOOP;
return geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02_multiline"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_wgs84togcj02_line(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02_multipoint"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_wgs84togcj02_point(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02_multipolygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
single_polygon geometry;
single_polygon_trans geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_MultiPolygon' THEN
RETURN source_geom;
END IF;
FOR single_polygon IN SELECT (ST_Dump($1)).geom LOOP
single_polygon_trans := geoc_wgs84togcj02_polygon(single_polygon);
target_parts := array_append(target_parts,single_polygon_trans);
END LOOP;
SELECT st_multi(ST_Union(target_parts)) INTO final_geom;
raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02_polygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
source_npoints integer;
single_line geometry;
single_line_trans geometry;
single_polygon geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_Polygon' THEN
RETURN source_geom;
END IF;
FOR single_polygon IN SELECT ST_ExteriorRing ((st_dumprings($1)).geom) as geom LOOP
source_npoints := ST_NPoints(single_polygon);
single_line := ST_RemovePoint(single_polygon, source_npoints - 1);
single_line_trans := geoc_wgs84togcj02_line(single_line);
target_parts := array_append(target_parts, ST_AddPoint(single_line_trans, ST_PointN(single_line_trans, 1)));
END LOOP;
SELECT ST_MakePolygon(target_parts[1], target_parts[2:array_upper(target_parts, 1)]) INTO final_geom;
-- raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02"("coord" _numeric)
RETURNS "pg_catalog"."_numeric" AS $BODY$
DECLARE
ret numeric[];
dLon numeric;
dlat numeric;
lon numeric;
lat numeric;
d jsonb;
-- coord ARRAY;
BEGIN
lon := coord[1];
lat := coord[2];
if (geoc_is_in_china_bbox(lon, lat) = false) then
return coord;
end if;
d := geoc_delta(lon, lat);
dlon := d->0;
dlat := d->1;
ret := ARRAY[lon + dlon , lat + dlat];
return ret;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02_point"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
lon numeric;
lat numeric;
d jsonb;
dlon numeric;
dlat numeric;
BEGIN
if st_geometrytype(geom) != 'ST_Point' then
return geom;
end if;
lon := st_x(geom);
lat := st_y(geom);
if (geoc_is_in_china_bbox(lon, lat) = false) then
return geom;
end if;
d := geoc_delta(lon, lat);
dlon := d->0;
dlat := d->1;
return st_makepoint(lon + dlon,lat + dlat);
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_wgs84togcj02"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
IF st_srid(geom) != 4490 and st_srid(geom) != 4326 THEN
RETURN null;
end if;
CASE ST_GeometryType(geom)
when 'ST_LineString' then
return geoc_wgs84togcj02_line(geom);
when 'ST_MultiLineString' then
return geoc_wgs84togcj02_multiline(geom);
when 'ST_Point' then
return geoc_wgs84togcj02_point(geom);
when 'ST_MultiPoint' then
return geoc_wgs84togcj02_multipoint(geom);
when 'ST_Polygon' then
return geoc_wgs84togcj02_polygon(geom);
when 'ST_MultiPolygon' then
return geoc_wgs84togcj02_multipolygon(geom);
ELSE
RETURN null;
END CASE;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02towgs84_polygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
source_npoints integer;
single_line geometry;
single_line_trans geometry;
single_polygon geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_Polygon' THEN
RETURN null;
END IF;
FOR single_polygon IN SELECT ST_ExteriorRing ((st_dumprings($1)).geom) as geom LOOP
source_npoints := ST_NPoints(single_polygon);
single_line := ST_RemovePoint(single_polygon, source_npoints - 1);
single_line_trans := geoc_gcj02towgs84_line(single_line);
target_parts := array_append(target_parts, ST_AddPoint(single_line_trans, ST_PointN(single_line_trans, 1)));
END LOOP;
SELECT ST_MakePolygon(target_parts[1], target_parts[2:array_upper(target_parts, 1)]) INTO final_geom;
-- raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02towgs84_point"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
tempPoint numeric[];
wgsLon numeric;
wgsLat numeric;
lon numeric;
lat numeric;
BEGIN
if st_geometrytype(geom) != 'ST_Point' then
return null;
end if;
lon := st_x(geom);
lat := st_y(geom);
if geoc_is_in_china_bbox(lon, lat) = false THEN
return geom;
end if;
tempPoint := geoc_wgs84togcj02(ARRAY[lon, lat]);
wgsLon := lon*2 - tempPoint[1];
wgsLat := lat*2 - tempPoint[2];
return st_makepoint(wgsLon,wgsLat);
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02towgs84_multipolygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
single_polygon geometry;
single_polygon_trans geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_MultiPolygon' THEN
RETURN null;
END IF;
FOR single_polygon IN SELECT (ST_Dump($1)).geom LOOP
single_polygon_trans := geoc_gcj02towgs84_polygon(single_polygon);
target_parts := array_append(target_parts,single_polygon_trans);
END LOOP;
SELECT st_multi(ST_Union(target_parts)) INTO final_geom;
raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02towgs84_multipoint"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_gcj02towgs84_point(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02towgs84_multiline"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_gcj02towgs84_line(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02towgs84_line"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
p_p geometry;
p_t geometry;
z_t geometry;
i int;
BEGIN
i:=1;
while i <= st_npoints(geom) LOOP
p_p := st_pointn(geom,i);
p_t := geoc_gcj02towgs84_point(p_p);
geom:=st_setpoint(geom,i-1,p_t);
i:=i+1;
end LOOP;
return geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02towgs84"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
BEGIN
IF st_srid(geom) != 4490 and st_srid(geom) != 4326 THEN
RETURN null;
end if;
case ST_GeometryType(geom)
when 'ST_LineString' then
return geoc_gcj02towgs84_line(geom);
when 'ST_MultiLineString' then
return geoc_gcj02towgs84_multiline(geom);
when 'ST_Point' then
return geoc_gcj02towgs84_point(geom);
when 'ST_MultiPoint' then
return geoc_gcj02towgs84_multipoint(geom);
when 'ST_Polygon' then
return geoc_gcj02towgs84_polygon(geom);
when 'ST_MultiPolygon' then
return geoc_gcj02towgs84_multipolygon(geom);
ELSE
RETURN null;
END CASE;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02tobd09_polygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
source_npoints integer;
single_line geometry;
single_line_trans geometry;
single_polygon geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_Polygon' THEN
RETURN null;
END IF;
FOR single_polygon IN SELECT ST_ExteriorRing ((st_dumprings($1)).geom) as geom LOOP
source_npoints := ST_NPoints(single_polygon);
single_line := ST_RemovePoint(single_polygon, source_npoints - 1);
single_line_trans := geoc_gcj02tobd09_line(single_line);
target_parts := array_append(target_parts, ST_AddPoint(single_line_trans, ST_PointN(single_line_trans, 1)));
END LOOP;
SELECT ST_MakePolygon(target_parts[1], target_parts[2:array_upper(target_parts, 1)]) INTO final_geom;
-- raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02tobd09_point"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
z double precision;
theta double precision;
x_pi double precision:=3.14159265358979324 * 3000.0 / 180.0;
lon numeric;
lat numeric;
bd_point geometry;
BEGIN
if st_geometrytype(geom) != 'ST_Point' then
return null;
end if;
lon := st_x(geom);
lat := st_y(geom);
if geoc_is_in_china_bbox(lon, lat) = false THEN
return geom;
end if;
z:= sqrt(power(lon,2) + power(lat,2)) + 0.00002 * sin(lat * x_pi);
theta:= atan2(lat, lon) + 0.000003 * cos(lon * x_pi);
bd_point:=ST_SetSRID(ST_MakePoint(z * cos(theta) + 0.0065,z * sin(theta) + 0.006),4326);
return bd_point;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02tobd09_multipolygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
single_polygon geometry;
single_polygon_trans geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_MultiPolygon' THEN
RETURN null;
END IF;
FOR single_polygon IN SELECT (ST_Dump($1)).geom LOOP
single_polygon_trans := geoc_gcj02tobd09_polygon(single_polygon);
target_parts := array_append(target_parts,single_polygon_trans);
END LOOP;
SELECT st_multi(ST_Union(target_parts)) INTO final_geom;
raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02tobd09_multipoint"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_gcj02tobd09_point(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02tobd09_multiline"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_gcj02tobd09_line(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02tobd09_line"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
p_p geometry;
p_t geometry;
z_t geometry;
i int;
BEGIN
i:=1;
while i <= st_npoints(geom) LOOP
p_p := st_pointn(geom,i);
p_t := geoc_gcj02tobd09_point(p_p);
geom:=st_setpoint(geom,i-1,p_t);
i:=i+1;
end LOOP;
return geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02tobd09"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
BEGIN
-- IF st_srid(geom) != '4490' THEN
-- RETURN null;
-- end if;
-- IF st_srid(geom) != '4326' THEN
-- RETURN null;
-- end if;
case ST_GeometryType(geom)
when 'ST_LineString' then
return geoc_gcj02tobd09_line(geom);
when 'ST_MultiLineString' then
return geoc_gcj02tobd09_multiline(geom);
when 'ST_Point' then
return geoc_gcj02tobd09_point(geom);
when 'ST_MultiPoint' then
return geoc_gcj02tobd09_multipoint(geom);
when 'ST_Polygon' then
return geoc_gcj02tobd09_polygon(geom);
when 'ST_MultiPolygon' then
return geoc_gcj02tobd09_multipolygon(geom);
ELSE
RETURN null;
END CASE;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_delta"("lon" numeric, "lat" numeric)
RETURNS "pg_catalog"."jsonb" AS $BODY$
DECLARE
ret varchar;
dLon numeric;
dlat numeric;
radLat numeric;
magic numeric;
sqrtMagic numeric;
ee numeric;
a numeric;
BEGIN
ee := 0.006693421622965823;
a := 6378245;
dLon := geoc_transform_lon(lon - 105, lat - 35);
dLat := geoc_transform_lat(lon - 105, lat - 35);
--raise NOTICE 'dLon的值为： %',dLon;
--raise NOTICE 'dLat的值为： %',dLat;
radLat := lat / 180 * pi();
magic = sin(radLat);
magic = 1 - ee * magic * magic;
sqrtMagic := sqrt(magic);
dLon = (dLon * 180) / (a / sqrtMagic * cos(radLat) * pi());
dLat = (dLat * 180) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi());
ret :='['||dLon||','||dLat||']';
return ret::jsonb;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;;
CREATE OR REPLACE FUNCTION "public"."geoc_bd09towgs84_polygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
source_npoints integer;
single_line geometry;
single_line_trans geometry;
single_polygon geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_Polygon' THEN
RETURN null;
END IF;
FOR single_polygon IN SELECT ST_ExteriorRing ((st_dumprings($1)).geom) as geom LOOP
source_npoints := ST_NPoints(single_polygon);
single_line := ST_RemovePoint(single_polygon, source_npoints - 1);
single_line_trans := geoc_bd09towgs84_line(single_line);
target_parts := array_append(target_parts, ST_AddPoint(single_line_trans, ST_PointN(single_line_trans, 1)));
END LOOP;
SELECT ST_MakePolygon(target_parts[1], target_parts[2:array_upper(target_parts, 1)]) INTO final_geom;
-- raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_bd09towgs84_point"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
x numeric;
y numeric;
gcj_point geometry;
wgs_point geometry;
BEGIN
if st_geometrytype(geom) != 'ST_Point' then
return null;
end if;
x := st_x(geom);
y := st_y(geom);
if (geoc_is_in_china_bbox(x, y) = false) then
return geom;
end if;
gcj_point = geoc_bd09togcj02_point(geom);
wgs_point = geoc_gcj02towgs84_point(gcj_point);
return wgs_point;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_bd09towgs84_multipolygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
single_polygon geometry;
single_polygon_trans geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_MultiPolygon' THEN
RETURN null;
END IF;
FOR single_polygon IN SELECT (ST_Dump($1)).geom LOOP
single_polygon_trans := geoc_bd09towgs84_polygon(single_polygon);
target_parts := array_append(target_parts,single_polygon_trans);
END LOOP;
SELECT st_multi(ST_Union(target_parts)) INTO final_geom;
raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_bd09towgs84_multipoint"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_bd09towgs84_point(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_bd09towgs84_multiline"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_bd09towgs84_line(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_bd09towgs84_line"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
p_p geometry;
p_t geometry;
z_t geometry;
i int;
BEGIN
i:=1;
while i <= st_npoints(geom) LOOP
p_p := st_pointn(geom,i);
p_t := geoc_bd09towgs84_point(p_p);
geom:=st_setpoint(geom,i-1,p_t);
i:=i+1;
end LOOP;
return geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_bd09towgs84"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
-- IF st_srid(geom) != '4490' THEN
-- RETURN geom;
-- end if;
-- IF st_srid(geom) != '4326' THEN
-- RETURN geom;
-- end if;
CASE ST_GeometryType(geom)
when 'ST_LineString' then
return geoc_bd09towgs84_line(geom);
when 'ST_MultiLineString' then
return geoc_bd09towgs84_multiline(geom);
when 'ST_Point' then
return geoc_bd09towgs84_point(geom);
when 'ST_MultiPoint' then
return geoc_bd09towgs84_multipoint(geom);
when 'ST_Polygon' then
return geoc_bd09towgs84_polygon(geom);
when 'ST_MultiPolygon' then
return geoc_bd09towgs84_multipolygon(geom);
ELSE
RETURN null;
END CASE;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_bd09togcj02_polygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
source_npoints integer;
single_line geometry;
single_line_trans geometry;
single_polygon geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_Polygon' THEN
RETURN null;
END IF;
FOR single_polygon IN SELECT ST_ExteriorRing ((st_dumprings($1)).geom) as geom LOOP
source_npoints := ST_NPoints(single_polygon);
single_line := ST_RemovePoint(single_polygon, source_npoints - 1);
single_line_trans := geoc_bd09togcj02_line(single_line);
target_parts := array_append(target_parts, ST_AddPoint(single_line_trans, ST_PointN(single_line_trans, 1)));
END LOOP;
SELECT ST_MakePolygon(target_parts[1], target_parts[2:array_upper(target_parts, 1)]) INTO final_geom;
-- raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_bd09togcj02_point"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
x numeric;
y numeric;
z double precision;
theta double precision;
x_pi double precision:=3.14159265358979324 * 3000.0 / 180.0;
gcj_point geometry;
BEGIN
if st_geometrytype(geom) != 'ST_Point' then
return null;
end if;
x := st_x(geom);
y := st_y(geom);
if (geoc_is_in_china_bbox(x, y) = false) then
return geom;
end if;
x:= ST_X(geom) - 0.0065;
y:= ST_Y(geom) - 0.006;
z:=sqrt(power(x,2) + power(y,2)) - 0.00002 *sin(y * x_pi);
theta:= atan2(y, x) - 0.000003 * cos(x * x_pi);
gcj_point:=ST_SetSRID(ST_MakePoint(z *cos(theta),z *sin(theta)),4326);
return gcj_point;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_bd09togcj02_multipolygon"("source_geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
target_parts geometry[];
single_polygon geometry;
single_polygon_trans geometry;
final_geom geometry;
BEGIN
IF ST_GeometryType(source_geom) != 'ST_MultiPolygon' THEN
RETURN null;
END IF;
FOR single_polygon IN SELECT (ST_Dump($1)).geom LOOP
single_polygon_trans := geoc_bd09togcj02_polygon(single_polygon);
target_parts := array_append(target_parts,single_polygon_trans);
END LOOP;
SELECT st_multi(ST_Union(target_parts)) INTO final_geom;
raise NOTICE 'final_geom: %',final_geom;
RETURN final_geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_bd09togcj02_multipoint"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_bd09togcj02_point(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_bd09togcj02_multiline"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
multiArr:=''::geometry[];
for i in EXECUTE $Q$ select (st_dump($1)).geom $Q$ using geom LOOP
transform_i :=geoc_bd09togcj02_line(i);
multiArr := array_append(multiArr, transform_i);
end LOOP;
return st_multi(ST_Union(multiArr));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_bd09togcj02_line"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
p_p geometry;
p_t geometry;
z_t geometry;
i int;
BEGIN
i:=1;
while i <= st_npoints(geom) LOOP
p_p := st_pointn(geom,i);
p_t := geoc_bd09togcj02_point(p_p);
geom:=st_setpoint(geom,i-1,p_t);
i:=i+1;
end LOOP;
return geom;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_bd09togcj02"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
i geometry;
transform_i geometry;
multiArr geometry[];
BEGIN
-- IF st_srid(geom) != '4490' THEN
-- RETURN geom;
-- end if;
-- IF st_srid(geom) != '4326' THEN
-- RETURN geom;
-- end if;
CASE ST_GeometryType(geom)
when 'ST_LineString' then
return geoc_bd09togcj02_line(geom);
when 'ST_MultiLineString' then
return geoc_bd09togcj02_multiline(geom);
when 'ST_Point' then
return geoc_bd09togcj02_point(geom);
when 'ST_MultiPoint' then
return geoc_bd09togcj02_multipoint(geom);
when 'ST_Polygon' then
return geoc_bd09togcj02_polygon(geom);
when 'ST_MultiPolygon' then
return geoc_bd09togcj02_multipolygon(geom);
ELSE
RETURN null;
END CASE;
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_cgcs2000togcj02"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
BEGIN
IF st_srid(geom) != '4490' THEN
RETURN null;
end if;
return geoc_wgs84togcj02(st_transform(st_setsrid(geom,4490),4326));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_cgcs2000tobd09"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
BEGIN
IF st_srid(geom) != '4490' THEN
RETURN null;
end if;
return geoc_wgs84tobd09(st_transform(st_setsrid(geom,4490),4326));
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_bd09tocgcs2000"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
BEGIN
IF st_srid(geom) != '4490' THEN
RETURN null;
end if;
return st_transform(st_setsrid(geoc_bd09towgs84(geom),4326),4490);
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100;
CREATE OR REPLACE FUNCTION "public"."geoc_gcj02tocgcs2000"("geom" "public"."geometry")
RETURNS "public"."geometry" AS $BODY$
DECLARE
BEGIN
IF st_srid(geom) != '4490' THEN
RETURN null;
end if;
return st_transform(st_setsrid(geoc_gcj02towgs84(geom),4326),4490);
END;
$BODY$
LANGUAGE plpgsql VOLATILE
COST 100
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