豆粑粑 matlab colormap cold
Normally,i perfer the "hot" colormap to illustrate the "heavy" -> "light" color.But with diff propeties ofthe total opposite value, Such as ,the pops and popc denisty.I need a color map as the opposite of "hot". Ha, I use the name "cold".
Great minds think alike.
I got the "cold " colormap on File Exchange.
https://cn.mathworks.com/matlabcentral/fileexchange/23865-cold-colormap
The same thought as I got.
function cmap = cold(m)
%COLD Black-Blue-Cyan-White Color Map
% COLD(M) returns an M-by-3 matrix containing a "cold" colormap
% COLD, by itself, is the same length as the current figure's
% colormap. If no figure exists, MATLAB creates one.
%
% Example:
% imagesc(peaks(500))
% colormap(cold); colorbar
%
% Example:
% load topo
% imagesc(0:360,-90:90,topo), axis xy
% colormap(cold); colorbar
%
% See also: hot, cool, jet, hsv, gray, copper, bone, vivid
%
% Author: Joseph Kirk
% Email: jdkirk630@gmail.com
% Release: 1.0
% Date: 04/21/09
if nargin < 1
m = size(get(gcf,'colormap'),1);
end
n = fix(3/8*m);
r = ;
g = ;
b = [(1:n)'/n; ones(m-n,1)];
cmap = ;
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