This function creates colors of class XYZ; a subclass of the virtual
XYZ(X, Y, Z, names)
these arguments give the X, Y and Z coordinates of the colors.
The values can be provided in separate
vectors or in a three-column matrix passed as
A vector of names for the colors (by default the row names of
X are used).
An object of class
XYZ which inherits from class
The X, Y and Z values are the levels of the CIE primaries. These are scaled so that the luminance of the display white-point is 100. The white-point is taken to be D65, which means that its coordinates are 95.047, 100.000, 108.883.
## Generate white in XYZ space XYZ(95.047, 100.000, 108.883) #> X Y Z #> [1,] 95.047 100 108.883