How to click the subplots

Question

Aravin 2017-1-8

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/319493-how-to-click-the-subplots

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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Answer 1

Jan 2017-1-8

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/319493-how-to-click-the-subplots#answer_249763

编辑：Jan 2017-1-8

在 MATLAB Online 中打开

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')

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Answer 2

Ling Mei 2019-5-6

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/319493-how-to-click-the-subplots#answer_373732

在 MATLAB Online 中打开

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.

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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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