arrows3D {compositions}R Documentation

arrows in 3D, based on package rgl

Description

adds 3-dimensional arrows to an rgl plot.

Usage

arrows3D(...)
## Default S3 method:
arrows3D(x0,x1,...,length=0.25,
                     angle=30,code=2,col="black",
                     lty=NULL,lwd=2,orth=c(1,0.0001,0.0000001),
                     labs=NULL,size=lwd)

Arguments

x0 a matrix or vector giving the starting points of the arrows
x1 a matrix or vector giving the end points of the arrows
... additional plotting parameters as described in rgl.material
length a number giving the length of the arrowhead
angle numeric giving the angle of the arrowhead
code 0=no arrowhead,1=arrowhead at x0,2=arrowhead at x1,3=double headed
col the color of the arrow
lty Not implemented, here for compatibility reasons with arrows
lwd line width in pixels
orth the flat side of the arrow is not unique by x0 and x1. This ambiguity is solved in a way that the arrow seams as wide as possible from the viewing direction orth.
labs labels to be plotted to the endpoints of the arrows
size size of the plotting symbol

Details

The function is called to plot arrows into an rgl plot. The size of the arrow head is given in a absolute way. Therefore it is important to give the right scale for the length, to see the arrow head and that it does not fill the whole window.

Value

Nothing

Author(s)

K.Gerald v.d. Boogaart http://www.stat.boogaart.de

See Also

points3D, plot, plot3D,

Examples

x <- cbind(rnorm(10),rnorm(10),rnorm(10))
plot3D(x)
x0 <- x*0
arrows3D(x0,x)

[Package compositions version 1.01-1 Index]