trifield-package: Assists in creating and plotting ternary fields
In trifield: Some basic facilities for ternary fields and plots

Description Details Author(s) References Examples

The package can project between unity-summed ternary vectors and binary vectors. An "apply" function is provided to apply a function over a ternary field, as is a function for constructing ternary grids. Some rudimentary plotting functions are also provided. This is quick and dirty research code I needed in the course of writing a manuscript. Take it as such.

Package:	trifield
Type:	Package
Version:	1.0
Date:	2011-07-24
License:	GPL 2
LazyLoad:	yes

Some simple routines, mainly aimed at making ternary fields and contour plots.

Tim Keitt <tkeitt@gmail.com>

Maintainer: Tim Keitt <tkeitt@gmail.com>

http://dx.doi.org/10.1016/j.ecolmodel.2012.05.020

# See demo(trifield)
## Not run: 
grid.size = 128
par(mar = rep(2, 4), oma = rep(0, 4))
tg = ternary.grid(grid.size)
f = function(x)
        sin(2 * pi * x[1]) +
        sin(3 * pi * x[2]) +
        sin(4 * pi * x[3])
z = ternary.apply(tg, f)
tf = ternary.field(tg, z)
plot(tf)
ternary.legend()

## End(Not run)