waitfor function not working properly.. need help

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jchris14
jchris14 2016-8-16
评论： Walter Roberson 2016-8-17
Hi guys,
I used the waitfor function on matlab 2013b and now that i have installed 2015b, this function does not seem to work properly.
Firstplot= plot(thld,numBlackPixels); %plots each thld value and its corresponding black pixel count
grid on
xlabel('threshold')
ylabel('BlackPixels')
zoom on;
waitfor(gcf,'CurrentCharacter',13)
zoom reset
zoom off
[x,y]=ginput; %lets users select the range of values for thresholding
x1=x(1); %first x value chosen
x2=x(2); %second x value chosen
The above line of codes is what i've been using in 2013b and it doesn't work in 2015b.. i get the error
Error using waitfor
Invalid property.
Error in Image_Analysis_For_Porosity_And_Cracks (line 27)
waitfor(gcf,'CurrentFigure',13)
I cant figure it out. Thanks for the help

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Walter Roberson
Walter Roberson 2016-8-16
waitfor(gcf,'CurrentCharacter', char(13))
  2 个评论
jchris14
jchris14 2016-8-16
thank you. That was a silly question but thank you
Walter Roberson
Walter Roberson 2016-8-17
It was not a silly question. I just happened to test on R2016a that had a much clearer error message for this case.

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