Shearing
It is transformation which changes the shape of object. The sliding of layers of object occur. The shear can be in one direction or in two directions.
Shearing in the X-direction: In this horizontal shearing sliding of layers occur. The homogeneous matrix for shearing in the x-direction is shown below:
Shearing in the Y-direction: Here shearing is done by sliding along vertical or y-axis.
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Shearing in X-Y directions: Here layers will be slided in both x as well as y direction. The sliding will be in horizontal as well as vertical direction. The shape of the object will be distorted. The matrix of shear in both directions is given by:
