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POLARMAP: Polarized colormap

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POLARMAP: Polarized colormap

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11 Jun 2012 (Updated )

Colormap with zero-center white shading.

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Description

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.

Required Products MATLAB
MATLAB release MATLAB 7.14 (R2012a)
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Comments and Ratings (3)
28 Feb 2014 Michael Ranftelhuber  
12 Feb 2014 Sergei Luzina  
26 Sep 2013 Josh  
Updates
13 Jun 2012

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

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