How to click the subplots

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Aravin
Aravin 2017-1-8
评论： Walter Roberson 2019-5-6
I want to get the indexces of the subplot if clicked by mouse. For example, I have 10 figures shown by subplot.
for i=1:10
subplot(1,5,i), imshow(img{i});
end
Now if user click image 5, and 8 then somehow I should get variable name C with values 5 and 8.

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回答（2 个）

Jan
Jan 2017-1-8
编辑：Jan 2017-1-8
function FigH = main
FigH = figure('UserData', []);
for i = 1:10
subplot(1, 10, i); % You need 10 SUBPLOTs for 10 images
image(rand(100,100,3), 'ButtonDownFcn', {@Callback, i}); % Not IMSHOW
end
function Callback(ObjectH, EventData, Index)
FigH = ancestor(ObjectH, 'figure');
disp(Index)
UserData = [get(FigH, 'UserData'), Index];
set(FigH, 'Userdata', UserData);
Now you can call this from e.g. the command line:
FigH = main;
Then click on the images as wanted. Finally you can request:
C = get(FigH, 'UserData')
Ling Mei
Ling Mei 2019-5-6
the simplest way is just add 'axcopy' to the end of the figure,
such as:
figure();
for i=1:4
subplot(2,2,i);
plot(1:10,rand(1,10)*100,'k','linew',2);
end
axcopy;
You would have a pop-out subplot if you click the area of subplotted figure.
  1 个评论
Walter Roberson
Walter Roberson 2019-5-6
axcopy appears to be a ucsd function such as http://www.indiana.edu/~pcl/busey/temp/eeglabtutorial4.301/allfunctions/axcopy.m and appears to be included in eeglab
I also find a modified version in erplab

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