How to suplot 3 images (2D data) horizontally?

Question

Zihad Azad 2019-12-18

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/497162-how-to-suplot-3-images-2d-data-horizontally

回答： Zihad Azad 2019-12-18

I have 3 sets of 2D data that I would like to plot horizontally as part of one figure only. Here's the code:

clc; clear all;
load infinite;
load finite;
load gain;
% transpose matrix is not required
A1= log10(fs1);
A2= log10(fs2);
A3= log10(fs3);
 subplot(1,3,1);p1=pcolor(ky*1e-6,f/1e12,A1);
xlabel('k_{\ity}({\mu}m^{-1})') ;
subplot(1,3,2);p2=pcolor(ky*1e-6,f/1e12,A2);
xlabel('k_{\ity}({\mu}m^{-1})') ;
subplot(1,3,3);p3=pcolor(ky*1e-6,f/1e12,A3);
xlabel('k_{\ity}({\mu}m^{-1})') ;
ylabel('{\itf} (THz)'); 
%colormap setting
shading interp;
colormap jet;%colormap need to be set to jet for Blue-yellow-red map
%colorbar setting
c = colorbar; 
%labels the colorbar vertically as desired
set(get(c,'label'),'string','logscale');
c.TickLength=.056;
c.Units='pixel';
c.FontWeight='bold';
%font properties
FS='Fontsize';
fs=18;
FN='Fontname';
fn='Times New Roman';
set(findall(gcf,'type','axes'),FS,fs,FN,fn);
set(findall(gcf,'type','text'),FS,fs,FN,fn);

But for some reason the first two subplots are all blacked out:

What seems to be the issue here ? Also, the subfigures are really thin. I would like them to be the proper size for viewing ease. Also, I would like only one ylabel on the far left and one color bar on the far right. Can anyone help me please? I am new to Matlab.

TIA,

Zihad Azad

P.S.:The tables are attached herewith.

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Answer 1

KSSV 2019-12-18

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/497162-how-to-suplot-3-images-2d-data-horizontally#answer_406841

YOu should follow this:

https://in.mathworks.com/matlabcentral/answers/101346-how-do-i-use-multiple-colormaps-in-a-single-figure

https://in.mathworks.com/matlabcentral/answers/194554-how-can-i-use-and-display-two-different-colormaps-on-the-same-figure

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Zihad Azad 2019-12-18

Thanks for your reply. But these two issues that you noted are a little different from mine. Mine has to do with subplotting 3 2D data sets.And for some reason, I am unable to do it

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Answer 2

Zihad Azad 2019-12-18

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https://ww2.mathworks.cn/matlabcentral/answers/497162-how-to-suplot-3-images-2d-data-horizontally#answer_406861

在 MATLAB Online 中打开

No worries solved it already. Had to define the shading properties after each subplot. That's all:

clc; clear all;
load infinite;
load finite;
load gain;
% transpose matrix is not required
A1= log10(fs1);
A2= log10(fs2);
A3= log10(fs3);
h1=subplot(1,3,1);
p1=pcolor(ky*1e-6,f/1e12,A1);
xlabel('k_{\ity}(m^{-1})(\times 10^6)') ;ylabel('{\itf} (THz)');
title('(a)', 'FontSize', 30,'units','normalized','position',[.1 .9]); %gotta normalize the units to the figure window
set(h1, 'Units', 'normalized');
get(h1, 'Position')
set(h1,'Position',[  0.07    0.1100    0.27    0.8150]);
%colormap setting
shading interp;
colormap jet;%colormap need to be set to jet for Blue-yellow-red map
h2=subplot(1,3,2);
p2=pcolor(ky*1e-6,f/1e12,A2);
xlabel('k_{\ity}(m^{-1})(\times 10^6)');set(gca,'Yticklabel',[]);
title('(b)', 'FontSize', 30,'units','normalized','position',[.1 .9]);
set(h2, 'Units', 'normalized');
get(h2, 'Position')
set(h2,'Position',[  0.36    0.1100    0.27    0.8150]);
%colormap setting
shading interp;
colormap jet;
h3=subplot(1,3,3);
p3=pcolor(ky*1e-6,f/1e12,A3);
xlabel('k_{\ity}(m^{-1})(\times 10^6)');set(gca,'Yticklabel',[]);
title('(c)', 'FontSize', 30,'units','normalized','position',[.1 .9]);
set(h3, 'Units', 'normalized');
get(h3, 'Position')
set(h3,'Position',[  0.65    0.1100    0.29    0.8150]);
%colormap setting
shading interp;
colormap jet;%colormap need to be set to jet for Blue-yellow-red map
%colorbar setting
c = colorbar; 
%labels the colorbar vertically as desired
set(get(c,'label'),'string','logscale');
c.TickLength=.023;
c.Units='pixel';
c.FontWeight='bold';
%font properties
FS='Fontsize';
fs=22;
FN='Fontname';
fn='Times New Roman';
set(findall(gcf,'type','axes'),FS,fs,FN,fn);
set(findall(gcf,'type','text'),FS,fs,FN,fn);
% print -depsc dispersion.eps;