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\name{contour}
\docType{methods}
\alias{contour}
\alias{contour,RasterLayer-method}
\title{Contour plot}
\description{
Contour plot of a RasterLayer.
}
\usage{
\S4method{contour}{RasterLayer}(x, maxpixels=100000, ...)
}
\arguments{
\item{x}{Raster* object}
\item{maxpixels}{maximum number of pixels used to create the contours}
\item{...}{any argument that can be passed to \code{\link[graphics]{contour}} (graphics package)}
}
\seealso{
\code{\link{persp}}, \code{\link{filledContour}}, \code{\link{rasterToContour} }
}
\examples{
r <- raster(system.file("external/test.grd", package="raster"))
plot(r)
contour(r, add=TRUE)
}
\keyword{methods}
\keyword{spatial}
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