Create a Set of Tetrahetra Centered at Data Points
Description
Creates a scene consisting of small tetrahedra centered at specified data points in three dimensions.
Usage
1  pointsTetrahedra(x, y, z, size = 0.01, color = "black", ...)

Arguments
x, y, z 
numeric vectors representing point coordinates. 
size 
numeric; multiple of data range to use for the size of the tetrahedron in each dimension; recycled to length 3. 
color 
color to use for the tetrahedra. 
... 
additional arguments to be passed on to

Details
This function is useful, for example, for incorporating raw data along
with a density estimate surface in a scene rendered using standard or
grid graphics. For rgl rendering points3d
is
an alternative.
Value
Returns a triangle mesh scene representing the tetrahedra.
See Also
points3d
.
Examples
1 2 3 4 5 6 7 8 