Automatically Copy Legends from multiple UIAxes into Figure (in order to save that figure)

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Janik Ruge 2021-2-4

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https://ww2.mathworks.cn/matlabcentral/answers/736387-automatically-copy-legends-from-multiple-uiaxes-into-figure-in-order-to-save-that-figure

评论： Janik Ruge 2021-2-5

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Hi!

I created an app, that consists of multiple Tabs, with multiple sub-Tabs each.

Every one of those sub-Tabs displays a couple of UIAxes. There is one save button on each Sub-Tab, that copies the UIAxes into a new figure and places a couple other objects into that figure (for example annotations).

My Problem is, that with copyobj, the legends do not get copied.

Is there a swift way of getting the legends into the new figure easily, without manually redoing all of them?

Code example of how the elements are created:

% Example of how a UIAxes is created in the app (Only the legend part is interesting i guess):
            plot(app.UIAxes_S3_lu,fs,real(H4),fs,imag(H4));
            axis(app.UIAxes_S3_lu,[0 30 -10 10]);
            legend(app.UIAxes_S3_lu,'Realteil','Imaginärteil','NorthEast');
            %
            stem(app.UIAxes_S3_ru,fs,abs(H4));
            hold(app.UIAxes_S3_ru,'on');
            stem(app.UIAxes_S3_ru,fh,abs(H4h),'r');
            axis(app.UIAxes_S3_ru,[0 30 0 10]);
            legend(app.UIAxes_S3_ru,'Original','höhere Auflösung','NorthEast');%%
            hold(app.UIAxes_S3_ru,'off');
%             
% How the save Button is generally coded:
            newfigure = figure('Position',[0.1*app.ss(3), 0.1*app.ss(4), 0.75*app.ss(3), 0.75*app.ss(4)]);                    
% 
            copyobj(app.UIAxes_S3_lu, newfigure);
            copyobj(app.UIAxes_S3_ru, newfigure);
            annotation (newfigure,'Example')
            % etc
            savefig(newfigure,'C:\User...');
            delete(newfigure);

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Adam Danz 2021-2-5

copyobj is the way to go as of r2020b but is not supported prior to that (or 2020a, I forget).

Note that copyUIAxes() from the file exchange also copies UIAxes and their legends (and colorbars) to another figure from Matlab r2016a to the current release (currently r2020b).

Janik Ruge 2021-2-5