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
pushpin.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{pushpin}
\alias{pushpin}
\title{ Adds a "push pin" to an existing 3-d plot}
\description{Adds to an existing 3-d perspective plot
a push pin to locate a specific point.}
\usage{
pushpin( x,y,z,p.out, height=.05,col="black",text=NULL,adj=-.1,cex=1.0,...)
}
\arguments{
\item{x}{x location}
\item{y}{y location}
\item{z}{z location}
\item{p.out}{Projection information returned by persp}
\item{height}{Height of pin in device coordinates (default is about
5\% of the vertical distance ). }
\item{col}{Color of pin head.}
\item{text}{Optional text to go next to pin head.}
\item{adj}{Position of text relative to pin head.}
\item{cex}{Character size for pin head and/or text}
\item{\dots}{Additional graphics arguments that are passed to the text
function.}
}
\details{
See the help(text) for the conventions on
the \code{adj} argument and other options for placing text.
}
\author{Doug Nychka}
\seealso{drape.plot,persp}
\examples{
# Dr. R's favorite New Zealand Volcano!
data( volcano)
M<- nrow( volcano)
N<- ncol( volcano)
x<- seq( 0,1,,M)
y<- seq( 0,1,,N)
drape.plot( x,y,volcano, col=terrain.colors(128))-> pm
max( volcano)-> zsummit
xsummit<- x[ row( volcano)[volcano==zsummit]]
ysummit<- y[ col( volcano)[volcano==zsummit]]
pushpin( xsummit,ysummit,zsummit,pm, text="Summit")
}
\keyword{hplot}