ShearingTransform
WMA link
ShearingTransform[phi, {1, 0}, {0, 1}]
- gives a horizontal shear by the angle phi.
ShearingTransform[phi, {0, 1}, {1, 0}]
- gives a vertical shear by the angle phi.
ShearingTransform[phi, u, u, p]
- gives a shear centered at the point p.