How to shape the subplot to square and change colorbar label to top of the bar?

I need a square subplots and the colorbar label needs to move to top of the bar. Could some one help me?

set(0,'DefaultAxesFontName','TimesNewRoman');
set(0,'DefaultAxesFontSize',16);
set(0,'DefaultAxesFontWeight','bold')
figure
fig = gcf;
% fig.Position = [0, 0, 10000, 4000];
subplot(2,3,1)
imagesc(randn(10,10))
subplot(2,3,2)
imagesc(randn(10,10))
subplot(2,3,3)
imagesc(randn(10,10))
subplot(2,3,4)
imagesc(randn(10,10))
subplot(2,3,5)
imagesc(randn(10,10))
subplot(2,3,6)
imagesc(randn(10,10))

cbar = colorbar;
cbar_title = 'amp';
cbar.Label.String = cbar_title;

% Adjust the layout to make room for the color bar
set(gcf, 'Position', [100, 100, 1100, 800]);
cbar.Position = [0.92, 0.1, 0.02, 0.8];

[Dyuman Joshi]

The subplots are already square. Why do you think they are not?

And for the colorbar label, the solution I suggested to you in your previous question works here as well, you just need to add the colorbar to the figure.

[the cyclist]

@Dyuman Joshi, the plots have equal axes, but they are not ("physically") the same dimension. (See my solution.)

[Kalasagarreddi Kottakota]

@Dyuman Joshi, I cheked that too, to align my colorbar label. But the code you have given depends on clims. And not working on all the cases.

Answer 1

[the cyclist]

One way is to add axis square after each imagesc call:

set(0,'DefaultAxesFontName','TimesNewRoman');
set(0,'DefaultAxesFontSize',16);
set(0,'DefaultAxesFontWeight','bold')
figure
fig = gcf;
% fig.Position = [0, 0, 10000, 4000];
subplot(2,3,1)
imagesc(randn(10,10))
axis square
subplot(2,3,2)
imagesc(randn(10,10))
axis square
subplot(2,3,3)
imagesc(randn(10,10))
axis square
subplot(2,3,4)
imagesc(randn(10,10))
axis square
subplot(2,3,5)
imagesc(randn(10,10))
axis square
subplot(2,3,6)
imagesc(randn(10,10))
axis square

cbar = colorbar;
cbar_title = 'amp';
cbar.Label.String = cbar_title;

% Adjust the layout to make room for the color bar
set(gcf, 'Position', [100, 100, 1100, 800]);
cbar.Position = [0.92, 0.1, 0.02, 0.8];

You might not want to bother with this, because you presumably have a working solution using subplot, but in the future you might also consider using the tiledlayout function to create plots of this type.

[Kalasagarreddi Kottakota]

@the cyclist, thanks for the response. Can I aslo get help to move the colorbar label to the top of the bar?

[Dyuman Joshi]

@the cyclist You commented above that the axis are equal, but yet you used axis square in your code (which is redundant, as the xlimits and ylimits are the same)

subplot(2,3,1)
imagesc(randn(10,10))
a=axis

a = 1×4

0.5000 10.5000 0.5000 10.5000

subplot(2,3,2)
imagesc(randn(10,10))
a=axis

a = 1×4

0.5000 10.5000 0.5000 10.5000

subplot(2,3,3)
imagesc(randn(10,10))
a=axis

a = 1×4

0.5000 10.5000 0.5000 10.5000

subplot(2,3,4)
imagesc(randn(10,10))
a=axis

a = 1×4

0.5000 10.5000 0.5000 10.5000

subplot(2,3,5)
imagesc(randn(10,10))
a=axis

a = 1×4

0.5000 10.5000 0.5000 10.5000

subplot(2,3,6)
imagesc(randn(10,10))

a=axis

a = 1×4

0.5000 10.5000 0.5000 10.5000

Also, could you explain what did you mean by plots not being of same dimensions?

[the cyclist]

@Dyuman Joshi, I'm not sure about your perception, but your subplots are rectangular in shape; mine are square.

Take a look at the documentation for the axis command (which governs both axis limits and axis scaling), specifically the two different styles called equal and square.

The default axes are equal, with DataAspectRatio = [1 1]. But they are not square, because their PlotBoxAspectRatio is not [1 1]. The axis square command does that. See the difference side-by-side:

N=7;

tiledlayout(1,2)

nexttile
rng default
scatter(rand(N,1),rand(N,1))

nexttile
rng default
scatter(rand(N,1),rand(N,1))
axis square

[the cyclist]

@Kalasagarreddi Kottakota, you can adjust the position of the colorbar label using the Label.Position property. For example in your case

cbar.Label.Position = [2.7 2.0 0]

moves it up near the top.