O ST_GeometryFromText pega a representação de um texto conhecido e a identidade de um sistema de referência espacial e apresenta um objeto da geometria.
Sintaxe
db2gse.ST_GeometryFromText(geometryTaggedText Varchar(4000), cr db2gse.coordref)
Tipo de retorno
db2gse.ST_Geometry
Exemplos
A tabela GEOMETRY_TEST contém a coluna GID, que identifica exclusivamente cada linha e a coluna G1, que armazena a geometria.
CREATE TABLE GEOMETRY_TEST (gid smallint, g1 db2gse.ST_Geometry)
As instruções INSERT inserem os dados nas colunas GID e G1 da tabela GEOMETRY_TEST. A função ST_GeometryFromText converte a representação do texto de cada geometria na subclasse de instâncias do DB2 Spatial Extender correspondente.
INSERT INTO GEOMETRY_TEST VALUES(1, db2gse.ST_GeometryFromText('point (10.02 20.01)', db2gse.coordref()..srid(0))) INSERT INTO GEOMETRY_TEST VALUES (2, db2gse.ST_GeometryFromText('linestring (10.01 20.01, 10.01 30.01, 10.01 40.01)', db2gse.coordref()..srid(0))) INSERT INTO GEOMETRY_TEST VALUES(3, db2gse.ST_GeometryFromText('polygon ((10.02 20.01,11.92 35.64, 25.02 34.15,19.15 33.94,10.02 20.01))', db2gse.coordref()..srid(0))) INSERT INTO GEOMETRY_TEST VALUES(4, db2gse.ST_GeometryFromText('multipoint (10.02 20.01,10.32 23.98, 11.92 25.64)', db2gse.coordref()..srid(0))) INSERT INTO GEOMETRY_TEST VALUES(5, db2gse.ST_GeometryFromText('multilinestring ((10.02 20.01,10.32 23.98, 11.92 25.64), ( 9.55 23.75,15.36 30.11))', db2gse.coordref()..srid(0))) INSERT INTO GEOMETRY_TEST VALUES(6, db2gse.ST_GeometryFromText('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)))', db2gse.coordref()..srid(0)))