MATLAB: How to move a colorbar down in a subplot

colorcolor scalecolorbarcolormapMATLABposition;subplot

I've been having trouble fitting a colorbar to describe the scheme I'm using for these subplots. After finally getting a custom colorbar, I can't figure out how to move it downwards so it occupies the space to the right of plot N. Can anyone offer a suggestion?

Thank you.

Best Answer

After adding the colorbar, change its position property. You can use the positions of the other axes to align the colorbar as needed.

Here's a demo (works with subplot or tiledlayout).

Also see this answer.

figure()
ax = gobjects(1,4);
ax(1) = subplot(2,2,1); title('Axis 1')
ax(2) = subplot(2,2,2); title('Axis 2')
ax(3) = subplot(2,2,3); title('Axis 3')
% add colorbar to axis 2
cb = colorbar(ax(2),'orientation','horizontal','Location','SouthOutside');
% Reposition the colorbar using the y-position of axis 3. 
cb.Position(2) = ax(3).Position(2); % ax(3) is on the bottom row

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MATLAB: How to create a Contour plot such as below with three interdependent variables

time = readmatrix('Book1.xlsx', 'Range', 'A2:A202');
dp = readmatrix('Book1.xlsx', 'Range', 'C1:J1');
logDp = readmatrix('Book1.xlsx', 'Range', 'C2:J202');
ax = axes();
contourf(time, dp, logDp.')
colormap(jet)
xlabel('Time');
ylabel('Dp');
ax.ColorScale = 'log';
cb = colorbar(gca, 'Location', 'south');
ax.Position(2) = ax.Position(2) + 0.2; % move axis up
ax.Position(4) = ax.Position(4) - 0.2; % decrease the height
cb.Position(2) = cb.Position(2) - 0.18; % move the colorbar down

MATLAB: Resize the figure without colorbar in subplot

You can save the default position of each of your plots or subplots and then reset to those values after creating the color bar. However, if you reset to the default values, the color bar might get pushed outside of the figure frame, so consider using the axes function as shown below.

I hope this helps:

clear
figure(99),clf
ax(1) = axes('Position',[0.1300    0.60    0.65    0.35]) ; % or: ax(1) = subplot(2,1,1) ; 
pos{1} = ax(1).Position ; % save default values 
x = [-pi:0.1:pi] ;
y = cos(x) ;
plot(x,y)
ax(2) = axes('Position',[ax(1).Position(1)    0.11    ax(1).Position(3)    ax(1).Position(4)]) ; % or: ax(2) = subplot(2,1,2) ;
pos{2} = ax(2).Position ; % save default values
membrane % function that plots the MATLAB logo
cb_handle = colorbar ;
% reset axes positions to default values after creating colorbar:
ax(2).Position = pos{2} ; % or: ax(2).Position = ax(1).Position

Best Answer

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MATLAB: How to create a Contour plot such as below with three interdependent variables

MATLAB: Resize the figure without colorbar in subplot

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