How can I write the code of this problem of TIC /TOC timer?
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I want a code that is counting all the time since I press the pushbutton1. I have anothe pushbutton2 and when I press it if the time is less or equal to 3 s I want to display on a static or edit text a message, if the time is between 3s and 6s I want another message and between 6s and 20s the final message.
Could someone help me?
Answers (1)
Jan
on 28 Mar 2017
Edited: Jan
on 28 Mar 2017
function TimingTest
H.Fig = figure;
H.Text = uicontrol('Style', 'text', 'FontSize', 20, ...
'units', 'normalized', 'Position', [0.05, 0.3, 0.9, 0.1])
Button1 = uicontrol('Style', 'PushButton', 'String', 'Start', ...
'units', 'normalized', 'Position', [0.05, 0.1, 0.35, 0.1], ...
'Callback', {@Button1CB, H});
Button2 = uicontrol('Style', 'PushButton', 'String', 'Stop', ...
'units', 'normalized', 'Position', [0.6, 0.1, 0.35, 0.1], ...
'Callback', {@Button2CB, H});
end
function Button1CB(Button1H, EventData, H)
setappdata(H.Fig, 'Started', now);
end
function Button2CB(Button1H, EventData, H)
if ~isappdata(H.Fig, 'Started')
disp('Press Start at first!');
return;
end
elapsed = (now - getappdata(H.Fig, 'Started')) * 86400;
if elapsed <= 3.0
set(H.Text, 'String', '<= 3');
elseif elapsed <= 6.0
set(H.Text, 'String', '<= 6');
elseif elapsed <= 20.0 % Or simply "else"?
set(H.Text, 'String', 'final message');
else
set(H.Text, 'String', 'too slow');
end
end
2 Comments
Jan
on 28 Mar 2017
Edited: Jan
on 28 Mar 2017
Please explain "doesn't work". Do you get an error message? If so, please post it. Perhaps the "handles" struct is incomplete? Or the "end" are missing on the functions - they are optional, but when you have one "end" to close a function, all functions need one.
I guess: "H.Fig" is undefined. Use either "handles.figure" (or how the figure handle is called. Or:
FigH = ancestor(hObject, 'figure');
elapsed = (now - getappdata(FigH, 'Started')) * 86400;
Alternatively you can store the start time in the handles struct also. Then see the many threads about sharing variables between callbacks in this forum. Search for "guidata share variable".
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