vrml.plot3d {mining}R Documentation

View points in 3D

Description

Creates a VRML scene with the given points.

Usage

vrml.plot3d.default(x,y,z,data=parent.frame(),xlab,ylab,zlab,
                    pch=0,col=3,scale=c(1,1,1),file.name=NULL,
                    cex=1,cex.axis=12,light=T,axes=T,...)
vrml.plot3d.data.frame(frame,...)
vrml.plot3d.formula(formula,data,...)

Arguments

x,y,z numeric vectors giving the coordinates of the points.
frame a data frame with three columns.
data an environment in which to lookup x,y,z.
xlab,ylab,zlab axis labels.
pch a numeric code for the graphic object to place at each location. See details.
col a single color or vector of colors, used to color the points.
scale a vector of 3 numbers, defining the size of the box into which the points are placed. You can control the aspect ratio this way.
file.name a filename (with or without the .wrl extension) to receive the VRML. If NULL, a temporary name is chosen.
cex a scale factor for the objects.
cex.axis a scale factor for the axis labels.
light If TRUE, the scene will contain a light at each corner of the cube, with no headlight. Otherwise, the scene will contain no lights and rely on the headlight only.
axes If TRUE, a box with axis labels is drawn around the points.
... additional arguments to pass to the internal drawing routines, or to pass through to vrml.plot3d.default (for the data.frame and formula methods).

Details

A VRML scene description file is created, and opened with a browser if one is available.

VRML is a standard language for describing 3D scenes, and the file produced by this function should be portable across all machines with a VRML browser.

If pch=0, a cube is placed at each location. If pch=1, a sphere is placed at each location. If pch=".", a dot is placed at each location. The latter option is the fastest, and will be chosen automatically if the scale is small or the dataset is large.

Author(s)

Tom Minka

References

http://web3d.vapourtech.com/tutorials/vrml97/

www.wed3d.org/resources/vrml_ref_manual/Book.html

Examples

data(Housing)
w = pca(HousingT,k=3)
x = project(HousingT,w)
plot.new()
vrml.plot3d(x)
[Package Contents]