Applies any affine transformation of the plane (linear transformation plus vector shift) to a plane geometrical object, such as a point pattern or a window.
affine(X, …)Any suitable dataset representing a two-dimensional
object, such as a point pattern (object of class "ppp"),
a line segment pattern (object of class "psp"),
a window (object of class "owin") or a pixel image
(object of class "im").
Arguments determining the affine transformation.
Another object of the same type, representing the result of applying the affine transformation.
This is generic. Methods are provided for
point patterns (affine.ppp)
and windows (affine.owin).
affine.ppp,
affine.psp,
affine.owin,
affine.im,
flipxy,
reflect,
rotate,
shift