MATLAB Central Newsreader - timer and gui edit

timer and gui edit

Alessandro C. — Fri, 11 Apr 2008 20:37:02 -0400

Hi all

This is my code:

a = 1;
while a == 1
    t = timer('TimerFcn', 'y = myfunction(x)');
    start(t)
    pause(2)
end

I would like to show the y value in a edit object every 2
seconds. How can I do it?

Thank you in advance

Alessandro

Re: timer and gui edit

Vihang Patil — Sat, 12 Apr 2008 06:21:02 -0400

"Alessandro C." <a.cocciola@gmail.com> wrote in message
<ftoi5e$pm6$1@fred.mathworks.com>...
> Hi all
>
> This is my code:
>
> a = 1;
> while a == 1
> t = timer('TimerFcn', 'y = myfunction(x)');
> start(t)
> pause(2)
> end
>
> I would like to show the y value in a edit object every 2
> seconds. How can I do it?
>
> Thank you in advance
>
> Alessandro
>

Hello
Define your timer function and start the timer in the
gui_openingfcn if you want the timer to start as soon as
the gui is loaded or you can define the timer function in
the gui_openingfcn() but start the timer only say after
the pushbutton is pressed.
You dont need the while loop at all as the timer function
will the job for you.
Try this;

function main_gui_OpeningFcn(hObject, eventdata, handles,
varargin)
handles.guifig = gcf;
handles.tmr = timer('TimerFcn',
{@TmrFcn,handles.guifig},'BusyMode','Queue',...
'ExecutionMode','FixedRate','Period',2);%timer
updating after every 2 secs
guidata(handles.guifig,handles);

start(handles.tmr);
guidata(hObject, handles);

%Timer Function
function TmrFcn(src,event,handles) %Timer function
handles = guidata(handles);
x = myfunction(y);%define your function here
set(handles.edit1,'String',num2str(x)); %assuming x is
type 'double'
guidata(handles.guifig, handles);

HTH
Vihang

Re: timer and gui edit

Alessandro C. — Mon, 14 Apr 2008 10:17:01 -0400

Thank you very much Vihang!

Your code works perfectly.

Thanks again for your time.

Alessandro

Re: timer and gui edit

Jerzy Lapa — Sat, 18 Apr 2009 09:54:01 -0400

"Vihang Patil" <vihang_patil@yahoo.com> wrote in message <ftpkce$n7r$1@fred.mathworks.com>...
> "Alessandro C." <a.cocciola@gmail.com> wrote in message
> <ftoi5e$pm6$1@fred.mathworks.com>...
> > Hi all
> >
> > This is my code:
> >
> > a = 1;
> > while a == 1
> > t = timer('TimerFcn', 'y = myfunction(x)');
> > start(t)
> > pause(2)
> > end
> >
> > I would like to show the y value in a edit object every 2
> > seconds. How can I do it?
> >
> > Thank you in advance
> >
> > Alessandro
> >
>
> Hello
> Define your timer function and start the timer in the
> gui_openingfcn if you want the timer to start as soon as
> the gui is loaded or you can define the timer function in
> the gui_openingfcn() but start the timer only say after
> the pushbutton is pressed.
> You dont need the while loop at all as the timer function
> will the job for you.
> Try this;
>
> function main_gui_OpeningFcn(hObject, eventdata, handles,
> varargin)
> handles.guifig = gcf;
> handles.tmr = timer('TimerFcn',
> {@TmrFcn,handles.guifig},'BusyMode','Queue',...
> 'ExecutionMode','FixedRate','Period',2);%timer
> updating after every 2 secs
> guidata(handles.guifig,handles);
>
> start(handles.tmr);
> guidata(hObject, handles);
>
> %Timer Function
> function TmrFcn(src,event,handles) %Timer function
> handles = guidata(handles);
> x = myfunction(y);%define your function here
> set(handles.edit1,'String',num2str(x)); %assuming x is
> type 'double'
> guidata(handles.guifig, handles);
>
> HTH
> Vihang
>
>

Hi, i'm new here.
I must make GUI with timer and yours example works perfectly but only with Edit boxes and I need updating Axes too. In my GUI it opens figure1 in each Timerfcn.

function TmrFcn(src,event,handles) %Timer function

handles = guidata(handles);
axes(handles.axes1);
hold off
bar([2,1],'r');
guidata(handles.output, handles);

what's wrong? i must use set?

Thx for your help.
Jurek

Re: timer and gui edit

Lina Carmen — Wed, 09 Feb 2011 03:20:07 -0500

Hi,I was going to ask the same question,but I wont after I see your reply.
Its great,thanks.

"Vihang Patil" <vihang_patil@yahoo.com> wrote in message <ftpkce$n7r$1@fred.mathworks.com>...

>
> Hello
> Define your timer function and start the timer in the
> gui_openingfcn if you want the timer to start as soon as
> the gui is loaded or you can define the timer function in
> the gui_openingfcn() but start the timer only say after
> the pushbutton is pressed.
> You dont need the while loop at all as the timer function
> will the job for you.
> Try this;
>
> function main_gui_OpeningFcn(hObject, eventdata, handles,
> varargin)
> handles.guifig = gcf;
> handles.tmr = timer('TimerFcn',
> {@TmrFcn,handles.guifig},'BusyMode','Queue',...