pushpin: Adds a "push pin" to an existing 3-d plot

In fields: Tools for Spatial Data

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

x	x location
y	y location
z	z location
p.out	Projection information returned by persp
height	Height of pin in device coordinates (default is about 5% of the vertical distance ).
col	Color of pin head.
text	Optional text to go next to pin head.
adj	Position of text relative to pin head.
cex	Character size for pin head and/or text
...	Additional graphics arguments that are passed to the text function.

Details

See the help(text) for the conventions on the adj argument and other options for placing text.

Author(s)

Doug Nychka

See Also

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")

fields documentation built on Aug. 18, 2023, 1:06 a.m.