rotate.im

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Rotate a Pixel Image

Rotates a pixel image

Keywords
spatial, math
Usage
## S3 method for class 'im':
rotate(X, angle=pi/2, \dots, centre=NULL)
Arguments
X
A pixel image (object of class "im").
angle
Angle of rotation, in radians.
...
Ignored.
centre
Centre of rotation. Either a vector of length 2, or a character string (partially matched to "centroid", "midpoint" or "bottomleft"). The default is the coordinate origin c(0,0).
Details

The image is rotated by the angle specified. Angles are measured in radians, anticlockwise. The default is to rotate the image 90 degrees anticlockwise.

Value

  • Another object of class "im" representing the rotated pixel image.

See Also

affine.im, shift.im, rotate

Aliases
  • rotate.im
Examples
Z <- distmap(letterR)
  X <- rotate(Z)
  plot(X)
  Y <- rotate(X, centre="midpoint")
Documentation reproduced from package spatstat, version 1.37-0, License: GPL (>= 2)

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