Comments on: MATLAB Basics: Setting a background image for a GUI

By: dhull

dhull — Fri, 28 May 2010 15:56:16 +0000

@Yonatan,

I think I would need to see the code. Please send via e-mail.

Doug

By: Yonatan

Yonatan — Thu, 27 May 2010 20:55:37 +0000

Hello Doug,

I was able to set a background image with the images which are
already in the \toolbox\images\imdemos\ but when I tried to create my own image and saved it there I got errors and X/Y plot displayed. Do you know what seems to be the problem?

thanks

By: dhull

dhull — Tue, 20 Apr 2010 17:52:44 +0000

@Mark,


h = imshow(magic(500))
set(h,'alphaData',round(rand(500)))
set(h,'alphaDataMapping','none')

Take a look at this example. Doug

By: mark

mark — Mon, 19 Apr 2010 11:16:12 +0000

Hello Doug,

I have displayed an image in my gui program using your tutorial above. “imshow” method. The image has a white background. Is there a way to make the image transparent? Many Thanks

By: dhull

dhull — Mon, 05 Apr 2010 20:16:55 +0000

@Mark,

I need more information to really diagnose this.

contact http://www.mathworks.com/support

Thanks
Doug

By: Mark

Mark — Mon, 05 Apr 2010 16:25:45 +0000

Hello Doug,
I’m using MATLAB Version 7.8 (R2009a). My laptop is intel Core2 Duo, CPU T6400 @ 2.00GHz. 3.0GB RAM and 200GB hard drive with NVIDIA graphic card. My pc spec surpasses the recommended system requirement for running matlab 2009a. But why is working in gui so slow. Even if I’m running matlab alone with no other application, working in gui is still slow. Please is there anything i can do to enhance the performance. Many thanks

By: mark

mark — Wed, 24 Mar 2010 20:34:00 +0000

Many Thanks Doug,
I have been able to do it now. Thanks for your idea. Many thanks

By: dhull

dhull — Wed, 24 Mar 2010 20:30:46 +0000

@mark,

This is a little involved for blog comments… :)

please contact http://www.mathworks.com/support

Doug

By: mark

mark — Wed, 24 Mar 2010 19:30:28 +0000

sorry for using pushbutton1 in the error message (for the above question), it was meant to be pushbutton36

By: mark

mark — Wed, 24 Mar 2010 19:26:23 +0000

Thanks Doug, for the reply. I used the codes below to make duplicated plot at the command window.

n = 100;
x = rand(n,1);
y = rand(n,1);
h1 = plot(x,y,’o');

h1=gcf;
h2=figure;
objects=allchild(h1);
copyobj(get(h1,’children’),h2);

But how can i use this in gui. I want to put it under a pushbutton callback. i want it to double plot the plot on axes1. But anytime i run it, i get this error saying…

??? Undefined function or variable ‘axes1′.

Error in ==> program>pushbutton1_Callback at 106
h1=axes1;

here is my code

function pushbutton36_Callback(hObject, eventdata, handles)
n = 100;
x = rand(n,1);
y = rand(n,1);
axes(handles.axes1)
h1 = plot(x,y,’o');

h1=axes1;
h2=figure;
objects=allchild(h1);
copyobj(get(h1,’children’),h2);