These functions take as arguments a
BLOB containing a Well-Known Binary
(WKB) representation and, optionally, a spatial reference system
identifier (SRID). They return the corresponding geometry.
These functions also accept geometry objects for compatibility with the return value of the functions in Section 12.15.5, “MySQL-Specific Functions That Create Geometry Values”. Thus, those functions may be used to provide the first argument to the functions in this section.
GeomFromWKB() accepts a WKB value
of any geometry type as its first argument. Other functions
provide type-specific construction functions for construction of
geometry values of each geometry type.
For a description of WKB format, see Section 11.5.3.1.2, “Well-Known Binary (WKB) Format”.
GeomCollFromWKB(,
wkb[,srid])GeometryCollectionFromWKB(
wkb[,srid])
Constructs a GeometryCollection value using
its WKB representation and SRID.
GeomFromWKB(,
wkb[,srid])GeometryFromWKB(
wkb[,srid])
Constructs a geometry value of any type using its WKB representation and SRID.
LineFromWKB(,
wkb[,srid])LineStringFromWKB(
wkb[,srid])
Constructs a LineString value using its WKB
representation and SRID.
MLineFromWKB(,
wkb[,srid])MultiLineStringFromWKB(
wkb[,srid])
Constructs a MultiLineString value using
its WKB representation and SRID.
MPointFromWKB(,
wkb[,srid])MultiPointFromWKB(
wkb[,srid])
Constructs a MultiPoint value using its WKB
representation and SRID.
MPolyFromWKB(,
wkb[,srid])MultiPolygonFromWKB(
wkb[,srid])
Constructs a MultiPolygon value using its
WKB representation and SRID.
Constructs a Point value using its WKB
representation and SRID.
PolyFromWKB(,
wkb[,srid])PolygonFromWKB(
wkb[,srid])
Constructs a Polygon value using its WKB
representation and SRID.