Returns a new geometry that is the result of applying the specified 3D affine transformation.
geometryexpression.ST_Affine(a00,a01,a02,a10,a11,a12,a20,a21,a22,xoff,yoff,zoff)
Name  Type  Description 

a00 
DOUBLE 
The affine matrix element in row 0, column 0 
a01 
DOUBLE 
The affine matrix element in row 0, column 1 
a02 
DOUBLE 
The affine matrix element in row 0, column 2 
a10 
DOUBLE 
The affine matrix element in row 1, column 0 
a11 
DOUBLE 
The affine matrix element in row 1, column 1 
a12 
DOUBLE 
The affine matrix element in row 1, column 2 
a20 
DOUBLE 
The affine matrix element in row 2, column 0 
a21 
DOUBLE 
The affine matrix element in row 2, column 1 
a22 
DOUBLE 
The affine matrix element in row 2, column 2 
xoff 
DOUBLE 
The x offset for translation 
yoff 
DOUBLE 
The y offset for translation 
zoff 
DOUBLE 
The z offset for translation 
ST_Geometry Returns a new geometry that is the result of the specified transformation.
The spatial reference system identifier of the result is the same as the spatial reference system of the geometryexpression.
An affine transformation combines rotation, translation and scaling into a single method call. The affine transform is defined using matrix multiplication.
For a point (x,y,z), the result (x',y',z') is computed as follows:
/ x' \ / a00 a01 a02 xoff \ / x \  y'  =  a10 a11 a12 yoff  *  y   z'   a20 a21 a22 yoff   z  \ w' / \ 0 0 0 1 / \ 1 / 
This method can not be used with geometries in roundEarth spatial reference system.
SQL/MM (ISO/IEC 132493: 2006) Vendor extension
The following returns the result LineString (5 6, 5 3, 9 3)
. The X values are translated by 5
and the Y values are translated by 1.
SELECT Shape.ST_Affine( 1,0,0, 0,1,0, 0,0,1, 5,1,0 ) FROM SpatialShapes WHERE ShapeID = 5 
The following returns the result LineString (.698833 6.965029, .399334 3.980017, 4.379351 3.580683)
. The Shape is rotated around the Z
axis by 0.1 radians (about 5.7 degrees).
SELECT Shape.ST_Affine( cos(0.1),sin(0.1),0, sin(0.1),cos(0.1),0, 0,0,1, 0,0,0 ) FROM SpatialShapes WHERE ShapeID = 5 
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