R: Chittka (1992) colour space for tetrachromatic animals.

CTTKhexagon3D {colourvision}

R Documentation

Chittka (1992) colour space for tetrachromatic animals.

Description

Plots a hexagonal trapezohedron representing Chittka (1992) colour space for tetrachromatic animals (Thery and Casas, 2002).

Usage

CTTKhexagon3D(x, y, z, s.col = "red", f.col = "black",
              vnames = c("E1","E2","E3","E4"), type = "p",
              radius = 0.01, add = F, xlab = "", ylab = "", zlab = "",
              box = F, axes = F, ylim = c(-1, 1), xlim = c(-1, 1),
              zlim = c(-1,1), aspect = T, vectors=F, ...)

Arguments

`x`	x coordinate of points to be plotted
`y`	y coordinate of points to be plotted
`z`	z coordinate of points to be plotted
`s.col`	Colour to be used for plotted items. See plot3d in the rgl package.
`f.col`	Colour of tetrahedron lines. See plot3d in rgl package.
`vnames`	Vector names.
`type`	see plot3d function in the rgl package.
`radius`	see plot3d function in the rgl package.
`add`	see plot3d function in the rgl package.
`xlab`	see plot3d function in the rgl package.
`ylab`	see plot3d function in the rgl package.
`zlab`	see plot3d function in the rgl package.
`box`	see plot3d function in the rgl package.
`axes`	see plot3d function in the rgl package.
`ylim`	see plot3d function in the rgl package.
`xlim`	see plot3d function in the rgl package.
`zlim`	see plot3d function in the rgl package.
`aspect`	see plot3d function in the rgl package.
`vectors`	Whether vectors representing direction of photoreceptor outputs should be plotted.
`...`	Other arguments passed to function plot3d in the rgl package.

Author(s)

Felipe M. Gawryszewski f.gawry@gmail.com

References

Chittka, L. 1992. The colour hexagon: a chromaticity diagram based on photoreceptor excitations as a generalized representation of colour opponency. J Comp Physiol A 170, 533-543.