Break loop with button click Appdesigner GUI [Both plot and button are in different callback functions]
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shubham kumar gupta
el 23 de Nov. de 2020
Comentada: Jan
el 7 de Dic. de 2020
I have a GUI MATLAB
I have a button
and there is a loop like this
function RUN()
t=1:0.01:3600;
for i=1:numel(t)
y(1,i)=readValue();
plot(t(1:i),Tco(1:i));
pause(0.02)
end
end
function BUTTON_PRESS()
%BREAK FROM THAT LOOP
end
I want to break this loop when I click my button
0 comentarios
Respuesta aceptada
Jan
el 24 de Nov. de 2020
Editada: Jan
el 24 de Nov. de 2020
function main
FigH = figure;
ButtonH = uicontrol(FigH, 'Style', 'PushButton', 'String', 'Stop',
'Callback', @ButtonPressed, 'UserData', 0);
RUN(ButtonH);
end
function ButtnPressed(ButtonH, EventData)
ButtonH.UserData = 1;
end
function RUN(ButtonH)
t = 1:0.01:3600;
for i = 1:numel(t)
y(1,i) = readValue();
plot(t(1:i), Tco(1:i));
pause(0.02);
if ButtonH.UserData
break;
end
end
end
If there is really no chance to obtain a clean providing of the button's handle, use the tag to find it dynamically - but this is less nice:
function main
FigH = figure;
ButtonH = uicontrol(FigH, 'Style', 'PushButton', 'String', 'Stop', ...
'Callback', @ButtonPressed, 'UserData', 0, ...
'Tag', 'myUniqueButtonTag_in: main.m');
RUN();
end
function ButtnPressed(ButtonH, EventData)
ButtonH.UserData = 1;
end
function RUN()
ButtonH = findobj(allchild(groot), 'Tag', 'myUniqueButtonTag_in: main.m');
... same as above
end
Care for the situation, where two figures are existing or none, e.g. by:
function RUN()
ButtonH = findobj(allchild(groot), 'Tag', 'myUniqueButtonTag_in: main.m');
if numel(ButtonH) > 1
warning('Multiple stop buttons found.')
end
...
if ~isempty(ButtonH) && any([ButtonH.UserData])
end
4 comentarios
Más respuestas (1)
Voss
el 23 de Nov. de 2020
You can define a variable that says whether the button has been clicked. Set the value of that variable in your button's callback function. Check the value of that variable on each iteration of your for loop, and if it says the button has been clicked, break out of the loop.
6 comentarios
Rik
el 1 de Dic. de 2020
Changing the name will not solve anything if your code is not working in the first place. It is a good habit.
Instead of holding down the shift button while typing on this forum (which is considered SHOUTING and impolite), did you try using breakpoints to debug your code?
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