rotate.im
From spatstat v1.41-1
by Adrian Baddeley
Rotate a Pixel Image
Rotates a pixel image
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 originc(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
Examples
Z <- distmap(letterR)
X <- rotate(Z)
plot(X)
Y <- rotate(X, centre="midpoint")
Community examples
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