Discrete Surface Plots (Data visualization)

I am working on visualizing discrete random surfaces (e.g. Ising model). What I would like to be able to do is take the random data (which is an N x N array of 0s and 1s) and plot it in a 2D grid of squares. The squares corresponding to 0s would be blue, the squares corresponding to 1s would be red, let's say. (The end product should look like a "random patchwork quilt," effectively.) Is there a function in matlab ready made for this?

Answer 1

[Star Strider]

I am not certain what you want.

Hereare two options, the first simply a ‘patchwork’ plane, and the second a 3D bar3 plot:

M = randi([0 1], 7);                                % Create Matrix

cmap = [1 0 0; 0 0 1];                              % Define Red-Blue ‘colormap’

figure
imagesc(M)
colormap(flipud(cmap))

figure
h = bar3(M);
colormap(cmap)
for k1 = 1:numel(h)
    q = h(k1).ZData;
    h(k1).CData = ones(size(q)).*(q==0);
    h(k1).EdgeColor = [1 1 1]*0.8;
    h(k1).CData(:,1) = 0;
end
axis equal

You will likely need to experiment to get the result you want with your data.