R: Show one palette/colormap in three dimensional RGB or LUV...

pal.cube {pals} | R Documentation

## Show one palette/colormap in three dimensional RGB or LUV space

### Description

The palette is converted to RGB or LUV coordinates and plotted in a three-dimensional scatterplot. The LUV space is probably better, but it is easier to tweak colors by hand in RGB space.

### Usage

    pal.cube(pal, n = 100, label = FALSE, type = "RGB")

### Arguments

`pal` | A palette/colormap function or a vector of colors.
`n` | The number of colors to display for palette functions.
`label` | If TRUE, show color name/value on plot
`type` | Either "RGB" (default) or "LUV".

### Details

What to look for:

A good palette has colors that are spread somewhat uniformly in 3D.

### Value

None

### References

None

### Examples

    ## Not run:
    pal.cube(cubehelix)
    pal.cube(glasbey, n=32) # RGB, blues are too close to each other
    pal.cube(glasbey, n=32, type="LUV")
    pal.cube(cols25(25), type="LUV", label=TRUE)
    # To open a second cube
    rgl.open() # Open a new RGL device
    rgl.bg(color = "white") # Setup the background color
    pal.cube(colors()[c(1:152, 254:260, 362:657)]) # All R non-grey colors

    ## End(Not run)

[Package pals version 1.5 Index]