https://github.com/cran/fields
Tip revision: 6c8b30169bba182a68765ee3cb9b4e2ef7d38332 authored by Doug Nychka on 16 November 2011, 00:00:00 UTC
version 6.6.3
version 6.6.3
Tip revision: 6c8b301
plot.surface.Rd
% fields, Tools for spatial data
% Copyright 2004-2011, Institute for Mathematics Applied Geosciences
% University Corporation for Atmospheric Research
% Licensed under the GPL -- www.gpl.org/licenses/gpl.html
\name{plot.surface}
\alias{plot.surface}
\title{
Plots a surface
}
\description{
Plots a surface object in several different ways to give 3-d
information e.g. a contour plots, perspective plots.
}
\usage{
\method{plot}{surface}(x, main = NULL, type = "C", zlab = NULL, xlab = NULL,
ylab = NULL, levels = NULL, zlim = NULL, graphics.reset = NULL,
labcex = 0.6, add.legend=TRUE, ...)
}
\arguments{
\item{x}{
A surface object. At the minimum a list with components x,y and z
in the same form as the input list for the standard contour, persp
or image functions. This can also be an object from predict.surface.
}
\item{main}{
Title for plot.
}
\item{type}{
type="p" for a perspective/drape plot (see drape.plot),
type="I" for an image plot with a legend
strip (see image.plot), type="c" draws a contour plot, type="C" is the "I" option but with contours lines
added. type="b" gives both "p" and "C" as a 2X1 panel }
\item{zlab}{
z-axes label
}
\item{xlab}{
x-axes label
}
\item{ylab}{
y-axes labels
}
\item{levels}{
Vector of levels to be passed to contour function.
}
\item{graphics.reset}{
Reset to original graphics parameters after function plotting.
Default is to reset if type ="b" but not for the single plot options.
}
\item{zlim}{
Sets z limits on perspective plot. }
\item{labcex}{
Label sizes for axis labeling etc.
}
\item{add.legend}{ If TRUE adds a legend to the draped perspective plot}
\item{\dots}{
Other graphical parameters that are passed along to either drape.persp
or image.plot
}
}
\seealso{
surface, predict.surface, as.surface, drape.plot, image.plot
}
\examples{
x<- seq( -2,2,,80)
y<- seq( -2,2,,80)
# a lazy way to create some test image
z<- outer( x,y, "+")
# create basic image/surface object
obj<- list(x=x, y=y,z=z)
# basic contour plot
# note how graphical parameters appropriate to contour are passed
plot.surface( obj, type="c", col="red")
# using a fields function to fit a surface and evaluate as surface object.
fit<- Tps( BD[,1:4], BD$lnya) # fit surface to data
# surface of variables 2 and 3 holding 1 and 4 fixed at their median levels
out.p<-predict.surface(fit, xy=c(2,3))
plot.surface(out.p) # surface plot
}
\keyword{hplot}
% docclass is function
% Converted by Sd2Rd version 1.21.