https://github.com/cran/spatstat
Tip revision: 66bc933451f6acbe2f5972792b5d74c00f8c88d6 authored by Adrian Baddeley on 24 August 2010, 10:48:17 UTC
version 1.20-3
version 1.20-3
Tip revision: 66bc933
rotate.ppp.Rd
\name{rotate.ppp}
\alias{rotate.ppp}
\title{Rotate a Point Pattern}
\description{
Rotates a point pattern
}
\usage{
\method{rotate}{ppp}(X, angle=pi/2, \dots)
}
\arguments{
\item{X}{A point pattern (object of class \code{"ppp"}).}
\item{angle}{Angle of rotation.}
\item{\dots}{Ignored.}
}
\value{
Another object of class \code{"ppp"} representing the
rotated point pattern.
}
\details{
The points of the pattern, and the window of observation,
are rotated about the origin by the angle specified.
Angles are measured in
radians, anticlockwise. The default is to rotate the pattern 90 degrees
anticlockwise. If the points carry marks, these are preserved.
Rotation of binary image masks is not yet implemented.
}
\seealso{
\code{\link{ppp.object}},
\code{\link{rotate.owin}}
}
\examples{
data(cells)
X <- rotate(cells, pi/3)
\dontrun{
plot(X)
}
}
\author{Adrian Baddeley
\email{adrian@maths.uwa.edu.au}
\url{http://www.maths.uwa.edu.au/~adrian/}
and Rolf Turner
\email{r.turner@auckland.ac.nz}
}
\keyword{spatial}
\keyword{math}