Saving an image from subplots in a uipanel

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I am running a live system that is controlled via a complex figure. One part of this figure is a uipanel (named handles.APlot) that contains three subplots - so:
subplot(311, 'Parent', handles.APlot);
handles.plotx=animatedline('Color','b','LineWidth',1);
ylabel('x (m)');
xlabel('time (s)');
subplot(312, 'Parent', handles.APlot);
handles.ploty=animatedline('Color','b','LineWidth',1);
ylabel('y (m)');
xlabel('time (s)');
subplot(313, 'Parent', handles.APlot);
handles.plotz=animatedline('Color','b','LineWidth',1);
ylabel('z (m)');
xlabel('time (s)');
This is continually updated until the end of a run:
hold on;
addpoints(handles.plotx,timeelapsed,X_mean);
addpoints(handles.ploty,timeelapsed,Y_mean);
addpoints(handles.plotz,timeelapsed,Z_mean);
hold off;
where timeelapsed is the time after start in seconds and the three means are positions in X, Y and Z. At the end of a run we get three nice graphs showing the events in X, Y, Z during the run.
My question is: How can I save these graphs to a file? A uipanel is not a figure so I can't access a frame. Matlab seems to indicate that there is an internal figure generated when you place axes(subplots) on a uipanel, but I can't find any way to access this.

Accepted Answer

Daniel Dolan
Daniel Dolan on 7 Jun 2018
You could copy the axes objects to a temporary figure.
name={'plotx' 'ploty' 'plotz'};
pos=getpixelposition(get(handles.(name{1),'Parent');
new=figure('Units','pixels','Position',pos);
for n=1:numel(name)
copyobj(handels.(name{n}),new);
end
print(new,'-dpdf','myplots.pdf');
delete(new);
  1 Comment
davidwriter
davidwriter on 8 Jun 2018
A minor modification and it worked perfectly - thank you.
name={'plotx' 'ploty' 'plotz'};
pos=getpixelposition(handles.APlot');
newfig=figure('Units','pixels','Position',pos, 'Visible','off');
for n=1:numel(name)
copyobj(handles.(name{n}),newfig);
end
saveas(newfig, 'PlotXYZ.jpg');
delete(newfig);

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