Comments on: Advanced MATLAB: Handles and other inputs to GUIDE callbacks http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/ Doug Hull is a proud MathWorker who is on a mission to help you with MATLAB. Sun, 22 Nov 2009 23:01:05 +0000 http://wordpress.org/?v=2.3.1 By: wrn http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-1270 wrn Wed, 17 Dec 2008 21:34:53 +0000 http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-1270 Doug, I want to do the thing like Zach. I have a GUI that contain many axes. But when I call the function with timer or serial callback. when I use like in this example http://blogs.mathworks.com/pick/2005/10/03/guide-video-part-two/ like this part from my updateAxes function. hAxes = findobj(hMainGui, 'type', 'axes'); axes(hAxes(1)); plot .... The axes will not be in my main GUI but another new window. I guess that the reason for this is because, my function is not calling in GUIDE callback scope(it's called from timer or serial callback). Like it work only if I invoke updateAxes from another callback function from GUI. How can I do it, the update have to invoke when the new data is come. Thank you very much. Doug,
I want to do the thing like Zach.

I have a GUI that contain many axes.

But when I call the function with timer or serial callback.

when I use like in this example
http://blogs.mathworks.com/pick/2005/10/03/guide-video-part-two/

like this
part from my updateAxes function.

hAxes = findobj(hMainGui, ‘type’, ‘axes’); axes(hAxes(1));
plot ….

The axes will not be in my main GUI but another new window.

I guess that the reason for this is because, my function is not calling in GUIDE callback scope(it’s called from timer or serial callback). Like it work only if I invoke updateAxes from another callback function from GUI.

How can I do it, the update have to invoke when the new data is come.

Thank you very much.

]]> By: dhull http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-1221 dhull Tue, 11 Nov 2008 16:35:58 +0000 http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-1221 The timer will be running in its own little workspace, so the handles structure that you pass at the beginning of the timer will be whatever it was when you create the timer. Try this in the opening function: t = timer('TimerFcn',{@foofoo, handles} , 'Period', 1,'ExecutionMode', ... 'fixedspacing','startdelay',1); start(t) With this function on the path. function foofoo(obj, event, hand) disp(hand) A silly little function, but it gets the handles structure out there as you see. -Doug The timer will be running in its own little workspace, so the handles structure that you pass at the beginning of the timer will be whatever it was when you create the timer.

Try this in the opening function:

t = timer(’TimerFcn’,{@foofoo, handles} , ‘Period’, 1,’ExecutionMode’, …
‘fixedspacing’,’startdelay’,1);

start(t)

With this function on the path.

function foofoo(obj, event, hand)
disp(hand)

A silly little function, but it gets the handles structure out there as you see.

-Doug

]]> By: Zach http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-1218 Zach Wed, 05 Nov 2008 22:14:54 +0000 http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-1218 Doug, It seems like the handles structure is already there and ready to use. The timer that I made in the OpeningFcn needs to pass the args similar to the widgets on the GUI send, in particular the "handles" part of MyFunct(hObject, eventdata, handles). In the timer object you can specify the args to pass but I think Im having a problem getting the handles to pass through properly. This is what I am trying handles.t = timer('TimerFcn',{@GetSmp_Callback, handles} , 'Period', 1,'ExecutionMode',... 'fixedspacing','startdelay',1); I initialize this in openingFcn but I am not sure if im handing "handles" properly. Is there a way to use a timer in the GUI and also use the handles structure? I can use set/getappdata but then all the wigets and callbacks use handles structure. Doug,
It seems like the handles structure is already there and ready to use. The timer that I made in the OpeningFcn needs to pass the args similar to the widgets on the GUI send, in particular the “handles” part of MyFunct(hObject, eventdata, handles). In the timer object you can specify the args to pass but I think Im having a problem getting the handles to pass through properly. This is what I am trying handles.t = timer(’TimerFcn’,{@GetSmp_Callback, handles} , ‘Period’, 1,’ExecutionMode’,…
‘fixedspacing’,’startdelay’,1); I initialize this in openingFcn but I am not sure if im handing “handles” properly. Is there a way to use a timer in the GUI and also use the handles structure? I can use set/getappdata but then all the wigets and callbacks use handles structure.

]]> By: Doug http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-927 Doug Fri, 31 Oct 2008 13:59:21 +0000 http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-927 I have tested, it is working now. Doug I have tested, it is working now.

Doug

]]> By: Zach http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-926 Zach Thu, 30 Oct 2008 03:37:59 +0000 http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-926 Doug, I cant get the file to play from link or by going to list?? Doug,
I cant get the file to play from link or by going to list??

]]> By: Doug http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-925 Doug Wed, 29 Oct 2008 19:34:03 +0000 http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-925 Zach, I think that the GETAPPDATA, SETAPPDATA techniques shown here: http://blogs.mathworks.com/pick/2005/10/03/guide-video-part-two/ Might be an easy solution for you. Doug Zach,

I think that the GETAPPDATA, SETAPPDATA techniques shown here:

http://blogs.mathworks.com/pick/2005/10/03/guide-video-part-two/

Might be an easy solution for you.

Doug

]]> By: Zach http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-924 Zach Mon, 27 Oct 2008 21:57:26 +0000 http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-924 Doug, I have a GUI that I put a timer in so that it will check if any serial data has come in every second. I am having trouble getting the Timer to pass the handles structure to my function that is plopped into the M-file that guide made. On compile it says that the "handles" is undefined. I tried to pass the hadles from the Timer funtion by saying {@myfunction, handles} to pass the handles to the myfunction but I get another compile problem. any help would be great. Doug,
I have a GUI that I put a timer in so that it will check if any serial data has come in every second. I am having trouble getting the Timer to pass the handles structure to my function that is plopped into the M-file that guide made. On compile it says that the “handles” is undefined. I tried to pass the hadles from the Timer funtion by saying {@myfunction, handles} to pass the handles to the myfunction but I get another compile problem. any help would be great.

]]> By: Tayfun http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-928 Tayfun Sun, 27 Jul 2008 11:38:57 +0000 http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-928 ıt is very good video. I learn a lot of new things about gui ıt is very good video. I learn a lot of new things about gui

]]> By: amiryousuf http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-934 amiryousuf Wed, 07 May 2008 11:53:47 +0000 http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-934 thanks for the idea. it is working. thanks for the idea. it is working.

]]> By: Administrator http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-935 Administrator Tue, 06 May 2008 16:00:26 +0000 http://blogs.mathworks.com/videos/2008/04/17/advanced-matlab-handles-and-other-inputs-to-guide-callbacks/#comment-935 Amir, You would simply modify the callback to use the DISP command to display any data you want. Doug Amir,

You would simply modify the callback to use the DISP command to display any data you want.

Doug

]]>