Mesh colour spectrum change

Hello all,

for users of new Matlab 2015a, i dont know if you noticed but the colour spectrum of "mesh" function changed, before it would go from blue to red, and now only from blue to yellow.

How can i see a mesh graph with a full colour spectrum like before, and not this partial one.

Thank you

Answer 1

[Image Analyst]

It would have helped if you would have attached screenshots. But with R2014b the default colormap changed from jet to parula, which does have a lot of blue and yellow in it. Perhaps that's what you're seeing. Please download and run the attached demo that displays all the colormaps. You can always change the colormap with the colormap() function, or you can change what numbers it applies to with the caxis() function.

[Pedro Vilas-Boas]

Thank you, it was exactly that, it seems i have to change back to Jet colourmap

[Image Analyst]

For further info: http://www.mathworks.com/company/newsletters/articles/rainbow-color-map-critiques-an-overview-and-annotated-bibliography.html

Rainbow Color Map Critiques: An Overview and Annotated Bibliography

By Steve Eddins, MathWorks

A rainbow color map is based on the order of colors in the spectrum of visible light—the same colors that appear in a rainbow. Rainbow color maps commonly appear in data visualizations in many different scientific and engineering communities, and technical computing software often provides a rainbow color map as the default choice. Although rainbow color maps remain popular, they have a number of weaknesses when used for scientific visualization, and have been widely criticized.

This paper summarizes the criticisms of the rainbow color map and presents an annotated bibliography of sources. It provides background for understanding why the MATLAB® default color map was changed in R2014b.