[R] [R-pkgs] colorspace: interactive HCL palette chooser
Achim.Zeileis at r-project.org
Fri Oct 26 11:33:10 CEST 2012
we have just released a new version (1.2-0) of the "colorspace" package:
In addition to the infrastructure for transforming colors between
different color spaces (RGB, HSV, HCL, and various others) and support for
different types of color palettes (qualitative, sequential, diverging),
there is now a new graphical user interface (GUI) for choosing suitable
HCL-based color palettes: choose_palette().
The Tcl/Tk-based GUI features a broad range of different palettes from and
lets the user interactively modify the underlying parameters (hue, chroma,
luminance, ...) to produce new palettes. It allows for easy exploration of
the effects of color blindness (through Thomas Lumley's "dichromat"
package) and of desaturation (emulating a grayscale printout for example).
The GUI contains various types of graphics (maps, heatmaps, barplots, line
and scatterplots, ...) that can be checked to see how a chosen palette
looks in practice.
Most of the coding for the new GUI was done by new package co-author Jason
C. Fisher. To check it out, simply run
after installing and loading the latest version of "colorspace" from CRAN.
Background information on the implemented palettes is provided in:
Achim Zeileis, Kurt Hornik, Paul Murrell (2009).
Escaping RGBland: Selecting Colors for Statistical Graphics.
Computational Statistics & Data Analysis, 53, 3259-3270.
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