axistetra: Plot reference axes in a static tetrahedral colourspace

In pavo: Perceptual Analysis, Visualization and Organization of Spectral Colour Data

Plot reference axes in a static tetrahedral colourspace

Description

Plots reference x, y and z arrows showing the direction of the axes in a static tetrahedral colourspace plot.

Usage

axistetra(
  x = 0,
  y = 1.3,
  size = 0.1,
  arrowhead = 0.05,
  col = par("fg"),
  lty = par("lty"),
  lwd = par("lwd"),
  label = TRUE,
  adj.label = list(x = c(0.003, 0), y = c(0.003, 0.003), z = c(0, 0.003)),
  label.cex = 1,
  label.col = NULL
)

Arguments

x, y	position of the legend relative to plot limits (usually a value between 0 and 1, but because of the perspective distortion, values greater than 1 are possible)
size	length of the arrows. Can be either a single value (applied for x, y and z) or a vector of 3 separate values for each axis.
arrowhead	size of the arrowhead.
col, lty, lwd	graphical parameters for the arrows.
label	logical, include x, y and z labels (defaults to TRUE).
adj.label	position adjustment for the labels. a list of 3 named objects for x, y and z arrows, each with 2 values for x and y adjustment.
label.cex, label.col	graphical parameters for the labels.

Value

axistetra adds reference arrows showing the direction of the 3-dimensional axes in a static tetrahedral colourspace plot.

Author(s)

Rafael Maia [e-mail]

Examples

data(sicalis)
vis.sicalis <- vismodel(sicalis, visual = "avg.uv")
tcs.sicalis <- colspace(vis.sicalis, space = "tcs")
plot(tcs.sicalis)
axistetra()

pavo documentation built on Sept. 24, 2023, 5:06 p.m.