methods.box3.Rd
\name{methods.box3}
\Rdversion{1.1}
\alias{methods.box3} %DoNotExport
\alias{print.box3}
\alias{unitname.box3}
\alias{unitname<-.box3}
\title{
Methods for Three-Dimensional Box
}
\description{
Methods for class \code{"box3"}.
}
\usage{
\method{print}{box3}(x, ...)
\method{unitname}{box3}(x)
\method{unitname}{box3}(x) <- value
}
\arguments{
\item{x}{
Object of class \code{"box3"} representing a three-dimensional box.
}
\item{\dots}{
Other arguments passed to \code{print.default}.
}
\item{value}{
Name of the unit of length. See \code{\link{unitname}}.
}
}
\details{
These are methods for the generic functions
\code{\link{print}} and \code{\link{unitname}}
for the class \code{"box3"} of three-dimensional boxes.
The \code{print} method prints a description of the box,
while the \code{unitname} method extracts the name of the unit of
length in which the box coordinates are expressed.
}
\value{
For \code{print.box3} the value is \code{NULL}.
For \code{unitname.box3} an object of class \code{"units"}.
}
\author{\adrian
and \rolf
}
\seealso{
\code{\link{box3}},
\code{\link{print}},
\code{\link{unitname}}
}
\examples{
X <- box3(c(0,10),c(0,10),c(0,5), unitname=c("metre", "metres"))
X
unitname(X)
# Northern European usage
unitname(X) <- "meter"
}
\keyword{spatial}
\keyword{methods}