Ternary projection of x, y coordinates

Description

Projects x, y coordinates on the unit square to a, b, c ternary ordinates

Usage

xy2abc(xy)

Arguments

Value

A matrix of a, b, c triples

Author(s)

Tim Keitt <tkeitt@gmail.com>

References

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

See Also

abc2xy

Examples

# 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)

Results