How to insert a saved .png figure into a subplot which is being created in a for loop?

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hello_world
hello_world 2016-8-28
编辑： hello_world 2016-8-28
Hello Friends,
I have the following code
for k = 1:2
subplot(1,3,k)
plot(randi(10,k));
end
I want to insert a saved .png (I prefer .png, but if it is easier for .fig, it is also ok) into this subplot which is being created in for loop at position subplot(1,3,1). This way, the inserted figure will come at the first position moving other two subfigures to the next available positions.
I will appreciate any advise!

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采纳的回答

Walter Roberson
Walter Roberson 2016-8-28
subplot(1,3,1)
image( imread('ThePNGFile.png') );
for k = 1:2
subplot(1,3,k+1)
plot(randi(10,k));
end
See also the XData and YData properties of image() and imshow() if you want to draw an image at a particular location in an axes that has other graphics.
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hello_world
hello_world 2016-8-28
编辑：hello_world 2016-8-28
Thanks. Could you please show an example of extracting something from the .fig and put it into an axes?
Adding axis image shrinks the .png image to it's normal size while other two images are quite big in height which makes it look odd.
Walter Roberson
Walter Roberson 2016-8-28
ax = subplot(1, 3, 1);
fig = openfig('MyFile.fig', 'visible', 'off');
imh = findobj(fig, 'type', 'image');
copyobj(imh, ax);
delete(fig);

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更多回答（1 个）

Image Analyst
Image Analyst 2016-8-28
Try this:
for k = 1:3
subplot(1,3,k)
% Insert image into subplot.
filename = whatever......
thisImage = imread(filename);
imshow(thisImage);
hold on;
% Now draw the plot over it.
plot(x, y);
drawnow;
end
  1 个评论
hello_world
hello_world 2016-8-28
编辑：hello_world 2016-8-28
Thanks! What are x and y please?
Using your code as follows gives the same .png subfigure in all subplots:
for k = 1:3
subplot(1,3,k)
% Insert image into subplot.
filename = 'myFig.png';
thisImage = imread(filename);
imshow(thisImage);
hold on;
% Now draw the plot over it.
plot(randi(10,k));
%plot(x, y);
drawnow;
end
It does not insert anything from plot(randi(10,k)); for subplot position 2 and 3.

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