how to execute loop again and again without double executing the program?

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kanu
kanu 2014-4-10
评论： kanu 2014-8-12
On any image if i clicked two times then i got the distance between that two points. Again i want to do same step without executing the program then which loop will work? I mean how it execute again and again.. my single two points execution is...
promptMessage = sprintf('left click on the two points'); titleBarCaption = 'Continue ?'; button = questdlg(promptMessage,titleBarCaption,'Continue','Cancel','Continue'); if strcmpi(button,'cancel') return; end [x,y] = ginput(2) distance = sqrt((x(2)-x(1))^2+(y(2)-y(1))^2) Message = sprintf('the distance is %3f pixel', distance); uiwait(helpdlg(message));

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采纳的回答

Mischa Kim
Mischa Kim 2014-4-10
Kanu, something like (not optimized)
...
exitFLAG = true;
while exitFLAG
[x,y] = ginput(2)
if ~strcmp(get(gcf,'Selectiontype'),'normal')
exitFLAG = false; % exit for mouse right-click
end
distance = sqrt((x(2)-x(1))^2+(y(2)-y(1))^2)
Message = sprintf('the distance is %3f pixel', distance);
end

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