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ColorBrewer: Attractive and Distinctive Colormaps

version 3.2.3 (19.1 KB) by Stephen
The complete palette of ColorBrewer colormaps. Simple selection by scheme name and map length.
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Updated02 Mar 2022

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BREWERMAP provides all ColorBrewer colorschemes for MATLAB, with simple selection by colormap length and colorscheme name. Alternatively the colorscheme name can be preselected, after which only the colormap length is required to define an output colormap.
BREWERMAP兼容所有MATLAB函数that require a colormap. The function consists of just one M-file that provides all of the ColorBrewer colorschemes (no mat file, no third party files, no file-clutter!). Downsampling or interpolation or repetition of the nodes occurs automatically, if required. Interpolation uses the Lab colorspace.
Examples
% New colors for the COLORMAP example:
S = load('spine.mat');
image(S.X)
colormap(brewermap([],"YlGnBu"))
% New colors for the SURF example:
[X,Y,Z] = peaks(30);
surfc(X,Y,Z)
colormap(brewermap([],'RdYlGn'))
axis([-3,3,-3,3,-10,5])
% New colors for the CONTOURCMAP example:
brewermap('PuOr');% preselect the colorscheme.
loadtopo
loadcoast
figure
worldmap(topo, topolegend)
contourfm(topo, topolegend);
contourcmap('brewermap','Colorbar','on','Location','horizontal',...
'TitleString','Contour Intervals in Meters');
plotm(lat, long,'k')
% Plot a scheme's RGB values:
rgbplot(brewermap(NaN,'Blues'))% standard
rgbplot(brewermap(NaN,'-Blues'))% reversed
% View information about a colorscheme:
[~,num,typ] = brewermap(NaN,'Paired')
num = 12
typ ='Qualitative'
% Multiline plot using matrices:
N = 6;
axes('ColorOrder'brewermap (N,'Pastel2'),'NextPlot','replacechildren')
X = linspace(0,pi*3,1000);
Y = bsxfun(@(x,n)n*sin(x+2*n*pi/N), X.', 1:N);
plot(X,Y,'linewidth',4)
% Multiline plot in a loop:
set(0,'DefaultAxesColorOrder',brewermap(NaN,'Accent'))
N = 6;
X = linspace(0,pi*3,1000);
Y = bsxfun(@(x,n)n*sin(x+2*n*pi/N), X.', 1:N);
forn = 1:N
plot(X(:),Y(:,n),'linewidth',4);
holdall
end
Bonus Functions
BREWERMAP_PLOT creates a figure which shows the nodes of all ColorBrewer colorschemes.
BREWERMAP_VIEW creates an interactive figure that allows selection of the colorscheme, and that contains two colorbars showing colors of the colormap and the grayscale equivalent.
R2014b or later: BREWERMAP_VIEW can also update other axes' or figures' colormaps in real time, for example:
S = load('spine');
image(S.X)
brewermap_view(gca)
Notes
The function BREWERMAP:
  • Consists of just one convenient M-file (no .mat files or file clutter).
  • Has no third-party file dependencies.
  • Has no special toolbox dependencies.
  • Interpolates in the Lab colorspace.
  • Requires just the standard ColorBrewer colorscheme name to select the colorscheme.
  • Accepts the colorscheme name as a string scalar or a character vector.
  • Supports all ColorBrewer colorschemes.
  • Outputs a MATLAB standard N-by-3 numeric RGB array.
  • Uses a default length the same as MATLAB's colormap functions.
  • Is compatible with all MATLAB functions that use colormaps (eg: CONTOURCMAP).
  • Includes the option to reverse the colormap color sequence.
  • Does not break ColorBrewer's Apache license conditions (unlike many on MATLAB File Exchange).
This product includes color specifications and designs developed by Cynthia Brewer (http://colorbrewer.org/). See the ColorBrewer website for further information about each colorscheme, colorblind suitability, licensing, and citations.

Cite As

Stephen (2022).ColorBrewer: Attractive and Distinctive Colormaps(https://github.com/DrosteEffect/BrewerMap/releases/tag/3.2.3), GitHub. Retrieved.

MATLAB Release Compatibility
Created with R2010b
Compatible with R2009a and later releases
Platform Compatibility
Windows macOS Linux

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To view or report issues in this GitHub add-on, visit theGitHub Repository.
To view or report issues in this GitHub add-on, visit theGitHub Repository.