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How to get current point at certain time points?

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lou
lou 2015-9-24
回答： Walter Roberson 2015-9-24
Hi!
I would like to set a sampling rate of get(gcf, 'currentpoint') to such that I would get the current point let's say in every half second. My current script is:
cp=get(gcf,'currentpoint');
t=timer;
set(t,'executionMode','fixedrate');
set(t,'period',.5);
set(t,'timerfcn',cp);
start(t);
However, this doesn't work. I get an error that says: TimerFcn callback must be set to a string, a function handle, or a 1-by-N cell array.
How to fix my script?

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Walter Roberson
Walter Roberson 2015-9-24
curfig = gcf;
cp = @(src,event) get(curfig,'currentpoint');
But once you have fetched it, what are you going to do with it?
http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.3F

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