R: Show a colormap with a space-filling z-curve

pal.zcurve {pals} | R Documentation

## Show a colormap with a space-filling z-curve

### Description

Construct a Z-order curve, coloring cells with a colormap. The difference in color between squares side-by-side is 1/48 of the full range. The difference in color between one square atop another is 1/96 the full range.

### Usage

    pal.zcurve(pal, n = 64, main = "")

### Arguments

`pal` | A continuous color palette function
`n` | Number of squares for the z-curve
`main` | Main title

### Details

What to look for:

1. A good color palette of 64 colors should be able to resolve 4 sub-squares within each of the 16 squares.

### Value

None

### Author(s)

Kevin Wright.

### References

Peter Karpov. 2016. In Search Of A Perfect Colormap. https://twitter.com/inversed_ru

Z-order curve. https://en.wikipedia.org/wiki/Z-order_curve

### Examples

    pal.zcurve(parula,n=4,main="parula")
    pal.zcurve(parula,n=16)
    pal.zcurve(parula,n=64)
    pal.zcurve(parula,n=256)

[Package pals version 1.5 Index]