custom colormap

sets the colormap according to monotonically increasing user defined ranges

Description

This function is useful if you don't want to use the linear scaled colormap that are the default in Matlab.
   
USAGE:
         CUSTOMCMAP(cbar_labels,user_cmap,minMaxValues)
                    
% INPUT:
% cbar_labels - Vector (n x 1) of monotonically increasing ranges of data
% user_cmap - Matrix ((n-1) x 3) of colormap you want to see
% minMaxValues - Vector (2 x 1) of minimum and maximum value of data
% that is plotted
%
%
% EXAMPLES:
data = rand(10,10);
minVal = min(min(data));
maxVal = max(max(data));
image(data,'CDataMapping','scaled');
cbar_labels = [0 0.12 0.2 0.3 0.5 0.6 0.75 0.8 1]; % user defined ranges
user_cmap = jet(8); % user defined colormap
customcmap(cbar_labels,user_cmap,[minVal maxVal])

Bug and comments are welcome.

Acknowledgements

This file inspired Valcolor.

• MATLAB release: MATLAB 7.10 (R2010a)

[mohammed]

It does not seems to compatible to subplot.

[Alexandr Troshchanovskii]

.

[Zhi Liu]

 

[Zhi Liu]

How should I adjust it so that I can show gradients between labels?

[Lukas Chvatal]