The envelope_test table's geotype column stores the name of the geometry subclass stored in the g1 ST_Geometry column.
Oracle
CREATE TABLE envelope_test (geotype varchar(20), g1 sde.st_geometry);
The INSERT statements insert each geometry subclass into the envelope_test table.
INSERT INTO envelope_test VALUES (
'Point',
sde.st_pointfromtext ('point (10.02 20.01)', 0)
);
INSERT INTO envelope_test VALUES (
'Linestring',
sde.st_linefromtext ('linestring (10.01 20.01, 10.01 30.01, 10.01 40.01)', 0)
);
INSERT INTO envelope_test VALUES (
'Linestring',
sde.st_linefromtext ('linestring (10.02 20.01, 10.32 23.98, 11.92 25.64)', 0)
);
INSERT INTO envelope_test VALUES (
'Polygon',
sde.st_polyfromtext ('polygon ((10.02 20.01, 11.92 35.64, 25.02 34.15, 19.15 33.94, 10.02 20.01))', 0)
);
INSERT INTO envelope_test VALUES (
'Multipoint',
sde.st_mpointfromtext ('multipoint (10.02 20.01, 10.32 23.98, 11.92 25.64)', 0)
);
INSERT INTO envelope_test VALUES (
'Multilinestring',
sde.st_mlinefromtext ('multilinestring ((10.01 20.01, 20.01 20.01, 30.01 20.01), (30.01 20.01, 40.01 20.01, 50.01 20.01))', 0)
);
INSERT INTO envelope_test VALUES (
'Multilinestring',
sde.st_mlinefromtext ('multilinestring ((10.02 20.01, 10.32 23.98, 11.92 25.64), (9.55 23.75, 15.36 30.11))', 0)
);
INSERT INTO envelope_test VALUES (
'Multipolygon',
sde.st_mpolyfromtext ('multipolygon (((10.02 20.01, 11.92 35.64, 25.02 34.15,
19.15 33.94, 10.02 20.01), (51.71 21.73, 73.36 27.04, 71.52 32.87,
52.43 31.90, 51.71 21.73)))', 0)
);
PostgreSQL
CREATE TABLE envelope_test (geotype varchar(20), g1 st_geometry);
The INSERT statements insert each geometry subclass into the envelope_test table.
INSERT INTO envelope_test VALUES (
'Point',
st_point ('point (10.02 20.01)', 0)
);
INSERT INTO envelope_test VALUES (
'Linestring',
st_linestring ('linestring (10.01 20.01, 10.01 30.01, 10.01 40.01)', 0)
);
INSERT INTO envelope_test VALUES (
'Linestring',
st_linestring ('linestring (10.02 20.01, 10.32 23.98, 11.92 25.64)', 0)
);
INSERT INTO envelope_test VALUES (
'Polygon',
st_polygon ('polygon ((10.02 20.01, 11.92 35.64, 25.02 34.15, 19.15 33.94, 10.02 20.01))', 0)
);
INSERT INTO envelope_test VALUES (
'Multipoint',
st_multipoint ('multipoint (10.02 20.01, 10.32 23.98, 11.92 25.64)', 0)
);
INSERT INTO envelope_test VALUES (
'Multilinestring',
st_multilinestring ('multilinestring ((10.01 20.01, 20.01 20.01, 30.01 20.01), (30.01 20.01, 40.01 20.01, 50.01 20.01))', 0)
);
INSERT INTO envelope_test VALUES (
'Multilinestring',
st_multilinestring ('multilinestring ((10.02 20.01, 10.32 23.98, 11.92 25.64), (9.55 23.75, 15.36 30.11))', 0)
);
INSERT INTO envelope_test VALUES (
'Multipolygon',
st_multipolygon ('multipolygon (((10.02 20.01, 11.92 35.64, 25.02 34.15,
19.15 33.94, 10.02 20.01), (51.71 21.73, 73.36 27.04, 71.52 32.87,
52.43 31.90, 51.71 21.73)))', 0)
);
The query lists the subclass name and its envelope. The ST_Envelope function returns the envelope around a point, line, or polygon.
Oracle
SELECT geotype, sde.st_astext (sde.st_envelope (g1)) Envelope
FROM envelope_test;
GEOTYPE Envelope
Point POLYGON (( 9.02000000 9.02000000, 21.01000000
9.02000000, 21.01000000 21.01000000, 9.02000000
21.01000000, 9.02000000 9.02000000))
Linestring POLYGON (( 9.01000000 19.01000000, 11.01000000
19.01000000, 11.01000000 41.01000000, 9.01000000
41.01000000, 9.01000000 19.01000000))
Linestring POLYGON (( 10.02000000 10.02000000,
11.92000000 20.01000000, 11.92000000 25.64000000,
10.02000000 25.64000000, 10.02000000 10.02000000))
Polygon POLYGON (( 10.02000000 20.01000000,
25.02000000 20.01000000, 25.02000000 35.64000000,
10.02000000 35.64000000, 10.02000000 20.01000000))
Multipoint POLYGON (( 10.02000000 20.01000000,
11.92000000 20.01000000, 11.92000000 25.64000000,
10.02000000 25.64000000, 10.02000000 20.01000000))
Multilinestring POLYGON (( 9.01000000 19.01000000,
51.01000000 19.01000000, 51.01000000 21.01000000,
9.01000000 21.01000000, 9.01000000 19.01000000))
Multilinestring POLYGON (( 9.55000000 20.01000000,
15.36000000 20.01000000, 15.36000000 30.11000000,
9.55000000 30.11000000, 9.55000000 20.01000000))
Multipolygon POLYGON (( 10.02000000 20.01000000,
73.36000000 20.01000000, 73.36000000 35.64000000,
10.02000000 35.64000000, 10.02000000 20.01000000))
PostgreSQL
SELECT geotype, st_astext (st_envelope (g1)) AS Envelope
FROM envelope_test;
geotype envelope
Point POLYGON (( 9.02000000 9.02000000, 21.01000000
9.02000000, 21.01000000 21.01000000, 9.02000000
21.01000000, 9.02000000 9.02000000))
Linestring POLYGON (( 9.01000000 19.01000000, 11.01000000
19.01000000, 11.01000000 41.01000000, 9.01000000
41.01000000, 9.01000000 19.01000000))
Linestring POLYGON (( 10.02000000 10.02000000,
11.92000000 20.01000000, 11.92000000 25.64000000,
10.02000000 25.64000000, 10.02000000 10.02000000))
Polygon POLYGON (( 10.02000000 20.01000000,
25.02000000 20.01000000, 25.02000000 35.64000000,
10.02000000 35.64000000, 10.02000000 20.01000000))
Multipoint POLYGON (( 10.02000000 20.01000000,
11.92000000 20.01000000, 11.92000000 25.64000000,
10.02000000 25.64000000, 10.02000000 20.01000000))
Multilinestring POLYGON (( 9.01000000 19.01000000,
51.01000000 19.01000000, 51.01000000 21.01000000,
9.01000000 21.01000000, 9.01000000 19.01000000))
Multilinestring POLYGON (( 9.55000000 20.01000000,
15.36000000 20.01000000, 15.36000000 30.11000000,
9.55000000 30.11000000, 9.55000000 20.01000000))
Multipolygon POLYGON (( 10.02000000 20.01000000,
73.36000000 20.01000000, 73.36000000 35.64000000,
10.02000000 35.64000000, 10.02000000 20.01000000))