How to plot binary matrix as dots?

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Dileep Vunnam
Dileep Vunnam el 15 de Sept. de 2021
Respondida: Star Strider el 15 de Sept. de 2021
I have a Matrix with ones and zeroes. How to plots the matrix with zeroes as black spot and ones as whote dots as shown in figure below.

Respuesta aceptada

Star Strider
Star Strider el 15 de Sept. de 2021
Try this —
M = randi([0 1],25)>0; % Logical Matrix
[r,c] = find(M);
figure
scatter(c, r, 75, 'sw', 'filled')
set(gca, 'Color','k', 'YDir','reverse')
axis([0 size(M,1)+1 0 size(M,2)+1])
% axis('equal')
The spy function works for this, however it does not have the ability to fill the markers, so I went with scatter instead.
figure
spy(M,'sw');
set(gca, 'Color','k')
hs.MarkerFaceColor = 'w';
Experiment to get the result you want.
.

Más respuestas (3)

millercommamatt
millercommamatt el 15 de Sept. de 2021
FH = figure;
imagesc(yourMatrix);
colormap(FH,[0,0,0;1,1,1]);

the cyclist
the cyclist el 15 de Sept. de 2021
M = magic(7);
B = M > mean(M);
colormap('gray')
imagesc(B)
axis square

Matt J
Matt J el 15 de Sept. de 2021
Editada: Matt J el 15 de Sept. de 2021
imshow(yourMatrix)

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