How to set common colorbar for multiplots?

Question

UTKARSH VERMA 2021-9-1

1
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1444554-how-to-set-common-colorbar-for-multiplots

评论： Diana Grisolia 2024-4-11

Hi all,

I am using subplots to plot multiple contour plots in a single figure using for loop and using colorbar with 'Position' but it doesn't give the common values for all the plots. I have tried different solution which was given to other Matlab users but none worked.

fig=figure(1)
clf
for i=1:24
subplot(6,4,i)
contourf(x,y,z)
end
h=axes(fig,'visible','off'); 
h.Title.Visible='on';
h.XLabel.Visible='on';
h.YLabel.Visible='on';
ylabel(h,'yaxis','FontWeight','bold');
xlabel(h,'xaxis','FontWeight','bold');
title(h,'title');
colormap(jet)
c=colorbar;
c.Position = [0.93 0.168 0.022 0.7];

Can you help me with this problem?

Thanks in advance!

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Answer 1

Robert U 2021-9-1

8
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https://ww2.mathworks.cn/matlabcentral/answers/1444554-how-to-set-common-colorbar-for-multiplots#answer_778664

在 MATLAB Online 中打开

Hi UTKARSH VERMA,

have a look at caxis():

[x, y] = meshgrid(0:0.1:1,0:0.1:1);

z = rand(11,11,24);

minColorLimit = min(min(min(z))); % determine colorbar limits from data

maxColorLimit = 24*max(max(max(z)));

fig=figure(1);

for i=1:24

sph{i} = subplot(6,4,i,'Parent',fig);

contourf(sph{i},x,y,i.*z(:,:,i)) % changes due to illustration purposes

caxis(sph{i},[minColorLimit,maxColorLimit]); % set colorbar limits

end

h = axes(fig,'visible','off');

h.Title.Visible = 'on';

h.XLabel.Visible = 'on';

h.YLabel.Visible = 'on';

ylabel(h,'yaxis','FontWeight','bold');

xlabel(h,'xaxis','FontWeight','bold');

title(h,'title');

c = colorbar(h,'Position',[0.93 0.168 0.022 0.7]); % attach colorbar to h

colormap(c,'jet')

caxis(h,[minColorLimit,maxColorLimit]); % set colorbar limits

Kind regards,

Robert

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Robert U 2023-5-16

在 MATLAB Online 中打开

Hi @Ashfaq Ahmed,

Try this:

NBayTEMPdetmnth = rand([256,256,12]);

clf;

fig=figure(1);

t = tiledlayout(4,3); t.TileSpacing = 'compact';

for i = 1:12

ah = nexttile;

[~, hContour]=contourf(ah,flip(NBayTEMPdetmnth(:,:,i)),25,'Linestyle','none','linewidth',0.5);

ah.XTick = [];

ah.YTick = [];

end

h = axes(fig,'visible','off');

h.Title.Visible = 'off';

h.XLabel.Visible = 'off';

h.YLabel.Visible = 'off';

c = colorbar(h,'Position',[0.93 0.168 0.022 0.7]); % attach colorbar to h

colormap(c,'jet')

caxis(h,[-5 20]); % set colorbar limits

Kind regards,

Robert

Shuchi 2023-6-13

Thanks for the code.

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Answer 2

Adam Danz 2023-6-20

3
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1444554-how-to-set-common-colorbar-for-multiplots#answer_1259339

编辑：Adam Danz 2023-6-20

在 MATLAB Online 中打开

This is easy with tiledlayout (MATLAB R2020b or later)

tcl = tiledlayout(3,4);

for i = 1:prod(tcl.GridSize)

nexttile()

[X,Y,Z] = peaks(2+i);

contourf(X,Y,Z)

clim([-7,6]) % Important! Set the same color limits

end

cb = colorbar();

cb.Layout.Tile = 'east'; % Assign colorbar location

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Diana Grisolia 2024-4-11

Thnks! It worked perfectly!!

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How to set common colorbar for multiplots?

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