MATLAB: Save a single subplot from a .mat file that contains 2×1 subplots

gcagcfsubplots

I have a saved .mat figure with two subplots as a 2×1. I have no access to the code. What is the fastest way to get the 1×1 subplot and plot it on a new figure by it self.

My temp solution…

I ended up selecting the "pointer/mouse" icon and just deleted the second subplot. Resized the desired plot and then saved it.

Can someone provide a coded solution?

Best Answer

There's nothing wrong with your solution of deleting the unneccessary subplot and resizing the desired one. If you need to do this with many subplots, you can write a short function or script like this

% get handles to axes of current figure
axh = findobj(gcf,'Type','axes'); 
% Delete the 2nd axes
delete(axh(2))
% expand the size of 1st axes
axh(1).Units = 'Normalize';    % I prefer working in normal units
axh(1).Position = [.1,.1,.8,.8];

An alternative would be to merely copy the content of the desired subplot onto a new axis within a new figure using copyobj()

% Create new figure and new axes
figure(); 
newax = cla(); 
% Copy the content (children) of 1st axes into the new axes.
copyobj(axh(1).Children,newax)

Related Solutions

MATLAB: Tabbed plots removes the title and labels

The issue is because you are not setting the xlabel,ylabel,title to particular axis or figure. These values are automatically set for the figure that is declared recently.Instead of declaring all the figures before ,you could modify your code as below

figure_handles(1).mainfig = figure;
figure_handles(1).tabgroup = uitabgroup;
% Fig1, tab1
newtab = uitab(figure_handles(1).tabgroup, 'Title', "tab1");
ax1 = axes(newtab); 
plot(ax1,rand(1,100)*10,rand(1,100)*10);
title('FIG 1')
xlabel('X label')
ylabel('Y label')
% Fig1, tab2 with legend
newtab = uitab(figure_handles(1).tabgroup, 'Title', "tab2");
ax3 = axes(newtab);
plot(ax3,rand(1,100)*10,rand(1,100)*10);
hold on
plot(ax3,rand(1,100)*10,rand(1,100)*10);
legend('1', '2')
title('FIG 1')
xlabel('X label')
ylabel('Y label')
hold off
figure_handles(2).mainfig = figure;
figure_handles(2).tabgroup = uitabgroup;
% Fig2, tab1
newtab = uitab(figure_handles(2).tabgroup, 'Title', "tab1");
ax = axes(newtab); 
plot(ax,rand(1,100)*10,rand(1,100)*10);
title('FIG 2')
xlabel('X label')
ylabel('Y label')

MATLAB: Resize subplot

Hi, Pan

You can use 4 axes and replace command subplot with

imagesc(vid2(:,:,:,frame3),'parent',axeshandle);

This is just small example with images

vid1 = imread('cameraman.tif');
vid2 = imread('peppers.png');
vid3 = imread('pout.tif');
vid4 = imread('football.jpg');
hfig = figure('unit','pixel','position',[100 100 512 512],'menubar','none');
ax1 = axes('parent',hfig,'unit','pixel','position',[0 0 256 256]);
ax2 = axes('parent',hfig,'unit','pixel','position',[257 0 256 256]);
ax3 = axes('parent',hfig,'unit','pixel','position',[0 257 256 256]);
ax4 = axes('parent',hfig,'unit','pixel','position',[257 257 256 256]);
imagesc(vid1,'parent',ax1); colormap(gray); axis(ax1,'off');
imagesc(vid2,'parent',ax2); colormap(gray); axis(ax2,'off');
imagesc(vid3,'parent',ax3); colormap(gray); axis(ax3,'off');
imagesc(vid4,'parent',ax4); colormap(gray); axis(ax4,'off');

Best Answer

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MATLAB: Tabbed plots removes the title and labels

MATLAB: Resize subplot

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