Reflect In Origin
Reflects a geometrical object through the origin.
reflect(X) ## S3 method for class 'im' reflect(X) ## Default S3 method: reflect(X)
X |
Any suitable dataset representing a two-dimensional
object, such as a point pattern (object of class |
The object X is reflected through the origin.
That is, each point in X with coordinates
(x,y) is mapped to the position (-x, -y).
This is equivalent to applying the affine transformation with matrix
diag(c(-1,-1)). It is also equivalent to rotation about the origin
by 180 degrees.
The command reflect is generic, with a method for
pixel images and a default method.
Another object of the same type, representing the result of reflection.
Adrian Baddeley Adrian.Baddeley@curtin.edu.au
and Rolf Turner r.turner@auckland.ac.nz
plot(reflect(as.im(letterR))) plot(reflect(letterR), add=TRUE)
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