An N by N by N matrix code

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dunphy
dunphy 2021-11-11
编辑： MathWorks Support Team 2025-10-7，12:39
How do I code for N x N x N matrix using a letter.

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KSSV
KSSV 2025-10-7，0:00
编辑：MathWorks Support Team 2025-10-7，12:39
Ran in:
text(0.5,0.5,'D','FontSize',90,'Color','k')
axis off
I=frame2im(getframe(gcf));
iwant = imresize(I,[50 50]) ;
imshow(iwant)
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Spaceman
Spaceman 2024-3-6
text adds text to one point, specifying x and y as scalars. i.e. (0.5,0.5)
'D' is what appears in the image.
'Fontsize',90 specifies how large the D will be.
'Color','k' dictates the D will be black.
Walter Roberson
Walter Roberson 2025-10-2，16:54
@KSSV I do not understand how this solution is intended to produce an N x N x N matrix. At most it produces a 50 x 50 x 3 matrix, but 50 x 50 x 3 is very different than 50 x 50 x 50.

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更多回答（3 个）

Walter Roberson
Walter Roberson 2025-9-23
N = 20; %for example
Letter = 'D'; %for example
Array3d = repmat(Letter, N, N, N);
DGM
DGM 2025-9-23
Ran in:
For sake of ridiculousness:
N = double('d'); % using a letter
myarray = zeros(N,N,N); % a NxNxN array
size(myarray)
ans = 1×3
100 100 100
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Yes, I did think about creating a volumetric image of a letter, but I'm lazy today.
Magisha
Magisha 2025-10-2，11:58

imshow(iwant)

  1 个评论
Walter Roberson
Walter Roberson 2025-10-2，16:52
This is the final line from @KSSV answer, and does not make any sense without the previous code posted by KSSV.

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