Question about axes using GUI in MATLAB

I have a GUI with one object: axes and a pushbutton. When pressing the pushbutton, I would like to display on the axes several images. I tried to use subplots but it doesn’t seem to cope: the images go all over the GUI window and not just where the axes are.

Here is the code for my pushbutton:

axes(handles.ManyImage);
subplot(2,2,1);
RGB1 = imread('Image1.TIF');
imagesc(RGB1);
axis off
subplot(2,2,2);
RGB2 = imread('Image2.TIF');
imagesc(RGB2);
axis off
subplot(2,2,3);
RGB3 = imread('Image3.TIF');
imagesc(RGB3);
axis off

I attached the illustrations of my problem.

Thank you for the help!

[Salaheddin Hosseinzadeh]

Try not turning off the axis

axis off

I don't think if that's the correct way of disappearing the axis.

[Angelina]

Well, it adds the axis on each images. I would like my three images to stay within the axes I defined using the guide.

[Ben11]

Are all of your images the same size?

[Angelina]

Nope, they aren't. But still, they are partitinned equaly in the window.

[Michael Haderlein]

Subplots are individual axes. You just created subplots (axes) on top of the first axes. They overlap, but they are not connected to each other. If you want axes inside a container, you can create a uipanel object and set the parent property of the axes (subplots) to the uipanel handle. As the positions are normalized by default, you can then just set the panel's position and the axis will follow.

[Angelina]

Thanks Michael for your answer.

i used the uipanel object and created two axes (children of my uipanel object) and then displayed my images on each axes (only two images for now on, so one image per axes). Is it what you meant? As in, if I want x images in my uipanel object, I should create x different axes?

Cheers.

[Michael Haderlein]

Yes, as far as I got your request, you want to have multiple images displayed but the axes should not be distributed all over the figure. Then create the uipanel, put it where you want, and put one axes per image into this panel.

[Angelina]

Thanks!

Answer 1

[Joseph Cheng]

Well... depending on what you're attempting to do here is a sample pushbutton that you'll have to play around with the spacing.

to test this out create a blank gui and put only a push button and axes with their default tags. Size the axes1 appropriately and then paste this callback in. So for this method I use the the GUIDE's axes1 to figure out the position and the area for the subplots (which for a first pass couldn't think of a way to scale them properly for a generic function such that any MxN subplot layout would work).

Along with this method i believe the GUIDE axes1 is still preserved such that if you do need to do just 1 image and not the subplots then you can delete the handles.SubPlot axes and re-enable axes1.

function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
Sampimg{1} = rand(100);
Sampimg{2} = repmat(1:100,100,1);
Sampimg{3} = repmat([1:50 50:-1:1],100,1);
Sampimg{4} = repmat([1:50 50:-1:1]',100,1);
Sampimg{5} = rand(100);
Sampimg{6} = repmat(1:100,100,1);
Sampimg{7} = repmat([1:50 50:-1:1],100,1);
Sampimg{8} = repmat([1:50 50:-1:1]',100,1);
subplotMxN = [2 4];

Units = 'pixels';
set(handles.axes1,'units',Units );
Position = get(handles.axes1,'position');
ULPosition = [Position(1) Position(2)+Position(4) Position(3:4)];
set(handles.axes1,'Visible','off');
plotind = 1;
Vspacing = .1*Position(4);
Hspacing = .1*Position(3);
height = .6*Position(4)/subplotMxN(1);
width = .6*Position(3)/subplotMxN(2);
for Mind = 1:subplotMxN(1)
    subVspacing = (Mind-1)*Vspacing;
    subposRow = [ULPosition(1:2) 0 0] + [0 -subVspacing-Mind*height width height];
    for Nind = 0:subplotMxN(2)-1
        subHspacing = (Nind)*Hspacing;
        if ~isfield(handles,'SubPlot')
            handles.SubPlot(plotind) = axes;       
        elseif isfield(handles,'SubPlot') & length(handles.SubPlot)<prod(subplotMxN)
            handles.SubPlot(plotind) = axes;
        end
        subpos = subposRow + [subHspacing+Nind*width 0 0 0];
        set(handles.SubPlot(plotind),'units',Units)
        set(handles.SubPlot(plotind),'Position',subpos)
        imagesc(Sampimg{plotind});

          plotind = plotind+1;
      end
  end
  disp('debug')
  guidata(hObject, handles);