pals (version 1.9)

pal.zcurve: 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 = "")

Value

None

Arguments

pal

A continuous color palette function

n

Number of squares for the z-curve

main

Main title

Author

Kevin Wright.

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.

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)