File Exchange

image thumbnail

POLARMAP: Polarized colormap

version (2.67 KB) by François Beauducel
Colormap with zero-center white shading.


Updated 13 Jun 2012

View License

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.

Cite As

François Beauducel (2020). POLARMAP: Polarized colormap (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (7)


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

MATLAB Release Compatibility
Created with R2012a
Compatible with any release
Platform Compatibility
Windows macOS Linux