how to change axes in loops

i want to change axes so i can show images in different axes. here is my code

n = 13;
for m = 1:n
    for idfile = 1:indSim(m)
        if idfile < 10
               name_file = strcat('000',num2str(idfile));
        elseif idfile < 100
               name_file = strcat('00',num2str(idfile));
        elseif idfile < 1000
               name_file = strcat('0',num2str(idfile));
        else
               name_file = strcat(num2str(idfile));
        end
    end

      str_img_name = strcat(folder, name_file, '.jpg');
      returned_img = imread(str_img_name);
      axes(handles.axes(m));
      imshow(returned_img);
  end

but i've got an error like this 'Reference to non-existent field 'axes'.' how can i change axes depends on `m` in the loops?

Answer 1

[Adam]

Your axes will each have a 'Tag'. If you used Guide to create your GUI which I am guessing you did from the 'handles' usage then you will need to gather the axes handles together into an array by accessing them as e.g.

handles.hAxes = [ handles.axes1, handles.axes2, handles.axes3 ];

Then use

axes( handles.hAxes(m) )

to change axes.

Personally I favour:

imshow( returned_img, 'Parent', handles.hAxes(m) );

rather than explicitly changing the current axes with:

axes( handles.hAxes(m) )

but that should work too.