affine.owin: Apply Affine Transformation To Window
Applies any affine transformation of the plane (linear transformation
plus vector shift) to a window.
## S3 method for class 'owin':
affine(X, mat=diag(c(1,1)), vec=c(0,0), ...)
Window (object of class "owin").
Matrix representing a linear transformation.
Vector of length 2 representing a translation.
Another window (of class "owin") representing the
result of applying the affine transformation.
The window is subjected first to the linear transformation represented by
mat (multiplying on the left by mat),
and then the result is translated by the vector vec.
The argument mat must be a nonsingular $2 \times 2$