https://github.com/cran/spatstat
Tip revision: 7b9a8f04abda6f2f394f2c163194057dbf559855 authored by Adrian Baddeley on 29 November 2010, 08:24:08 UTC
version 1.21-2
version 1.21-2
Tip revision: 7b9a8f0
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.Baddeley@csiro.au}
\url{http://www.maths.uwa.edu.au/~adrian/}
and Rolf Turner
\email{r.turner@auckland.ac.nz}
}
\keyword{spatial}
\keyword{math}