Option "TransformationMatrix" "a b c d e f g h i"

Specifies the 3x3 transformation matrix for absolute input devices. The input device will be bound to the area given in the matrix. In most

configurations, "a" and "e" specify the width and height of the area the device is bound to, and "c" and "f" specify the x and y offset of

the area. The value range is 0 to 1, where 1 represents the width or height of all root windows together, 0.5 represents half the area,

etc. The values represent a 3x3 matrix, with the first, second and third group of three values representing the first, second and third row

of the matrix, respectively. The identity matrix is "1 0 0 0 1 0 0 0 1".

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