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POLARMAP: Polarized colormap

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POLARMAP: Polarized colormap


François Beauducel


11 Jun 2012 (Updated )

Colormap with zero-center white shading.

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When representing "polarized" data for which zero and sign are meaningful (like for instance, a gravity anomalies map), it is useful to have a colormap where white stands for zero value, and greater magnitudes are plotted as colors with increasing saturation.

This little function POLARMAP has two different usages:

- proposes a new red-white-blue colormap that is standard for this purpose (same usage as other Matlab colormaps);

- applies a zero-center white shading to any existing colormap, like JET or HSV, or user defined.

Type "doc polarmap" for complete help, syntax and examples.


This file inspired Color Brewer: Attractive And Distinctive Colormaps and Cubehelix Colormaps: Beautiful, Distinct, Versatile!.

Required Products MATLAB
MATLAB release MATLAB 7.14 (R2012a)
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Comments and Ratings (4)
09 Dec 2014 Denis Anikiev

Denis Anikiev

28 Feb 2014 Michael Ranftelhuber

Michael Ranftelhuber

12 Feb 2014 Sergei Luzina

Sergei Luzina

26 Sep 2013 Josh


13 Jun 2012

Reverse default colors (blue-white-red) which is more logical...

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