POLARMAP: Polarized colormap

Colormap with zero-center white shading.
3K Downloads
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 (2024). POLARMAP: Polarized colormap (https://www.mathworks.com/matlabcentral/fileexchange/37099-polarmap-polarized-colormap), MATLAB Central File Exchange. Retrieved .

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

Inspired: MatPlotLib Perceptually Uniform Colormaps

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!
Version Published Release Notes
1.1.0.0

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

1.0.0.0