https://github.com/cran/spatstat
Tip revision: 1e2e5effce4a1c1c194bb7012cc09bfe730b3599 authored by Adrian Baddeley on 17 December 2009, 17:17:51 UTC
version 1.17-4
version 1.17-4
Tip revision: 1e2e5ef
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}