How to plot a matrix in a checkerboard style

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Jimmy Neutron
Jimmy Neutron on 28 Nov 2021
Answered: DGM on 28 Nov 2021
I am trying to make my matrix Im look like the image below. I have tried playing around with the grid size, but to no avail...
Im = [0 0 0 0 0 0 0 0 0 0 0 0 0 0 0;
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0;
0 0 1 0 0 0 1 1 0 0 0 0 0 0 0;
0 1 0 0 0 0 1 0 0 0 0 1 0 0 0;
0 1 0 1 1 0 1 0 0 0 0 1 1 1 0;
0 0 0 1 1 0 1 0 0 0 0 1 0 0 0;
0 0 1 0 1 0 1 1 0 0 0 0 0 0 0;
0 0 0 1 1 0 1 1 0 0 0 0 0 0 0;
0 0 0 0 0 0 0 1 0 0 0 0 0 1 0;
0 0 0 0 0 0 0 0 0 0 0 0 1 0 0;
0 0 0 1 0 0 0 1 0 0 0 1 1 0 0;
0 0 1 1 0 0 1 1 0 0 0 1 0 0 0;
0 0 0 1 0 0 1 1 0 0 0 1 1 0 0;
0 0 0 0 0 0 0 0 0 0 1 0 0 0 0;
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0;
];
figure
imagesc(Im)
grid on
set(gca,'xtick',[0:1:length(Im)])
set(gca,'ytick',[0:1:length(Im)])

Accepted Answer

DGM
DGM on 28 Nov 2021
Something like this should be a start:
Im = [0 0 0 0 0 0 0 0 0 0 0 0 0 0 0;
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0;
0 0 1 0 0 0 1 1 0 0 0 0 0 0 0;
0 1 0 0 0 0 1 0 0 0 0 1 0 0 0;
0 1 0 1 1 0 1 0 0 0 0 1 1 1 0;
0 0 0 1 1 0 1 0 0 0 0 1 0 0 0;
0 0 1 0 1 0 1 1 0 0 0 0 0 0 0;
0 0 0 1 1 0 1 1 0 0 0 0 0 0 0;
0 0 0 0 0 0 0 1 0 0 0 0 0 1 0;
0 0 0 0 0 0 0 0 0 0 0 0 1 0 0;
0 0 0 1 0 0 0 1 0 0 0 1 1 0 0;
0 0 1 1 0 0 1 1 0 0 0 1 0 0 0;
0 0 0 1 0 0 1 1 0 0 0 1 1 0 0;
0 0 0 0 0 0 0 0 0 0 1 0 0 0 0;
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0;
];
hp = pcolor(padarray(Im,[1 1],'replicate','post'));
hp.EdgeColor = [1 0 0];
hp.LineWidth = 2;
colormap(gray(2))
set(gca,'ydir','reverse')
axis equal

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