OutsidePlot: Is a point in the plotting area?

In Ternary: Create Ternary and Holdridge Plots

Is a point in the plotting area?

Description

Evaluate whether a given set of coordinates lie outwith the boundaries of a plotted ternary diagram.

Usage

OutsidePlot(x, y, tolerance = 0)

Arguments

x, y	Vectors of x and y coordinates of points.
tolerance	Consider points this close to the edge of the plot to be inside. Set to negative values to count points that are just outside the plot as inside, and to positive values to count points that are just inside the margins as outside. Maximum positive value: 1/3.

Value

OutsidePlot() returns a logical vector specifying whether each pair of x and y coordinates corresponds to a point outside the plotted ternary diagram.

Author(s)

Martin R. Smith ([e-mail])

See Also

Other plot limits: TernaryXRange()

Examples

TernaryPlot()
points(0.5, 0.5, col = "darkgreen")
OutsidePlot(0.5, 0.5)

points(0.1, 0.5, col = "red")
OutsidePlot(0.1, 0.5)

OutsidePlot(c(0.5, 0.1), 0.5)

Ternary documentation built on Sept. 11, 2024, 6:39 p.m.