When you invert a transform a rotation clockwise becomes an
identical rotation anti-clockwise. A translation to the left
becomes a translation to the right. A zoom in becomes a zoom
Note that not every transform can be inverted. If you specify a
magnification of zero you have shrunk your world space to a point.
In this case it is not possible to invert the transform to get the
original back again. However this kind of transform is uncommon in
the real world and normally only occurs as a result of programming
If you apply the invert method to a non-invertible transform the
transform will remain unmodified.