MATLAB: How to use savefig in app-designer

MATLABopenfigsavefig

Here is how I plot my map in app-designer:
            load map_use; %M N
            [m n] = size(M);
            for i=1:200;
                M2 = [];
                for j=1:m;
                    if M(j,3)==i;
                        M2=[M2;M(j,1:2)];
                    end
                end
                patch(app.mapPlot, M2(:,1), M2(:,2), [0.62,0.83,0.50]);
            end;
            
            savefig(app.mapPlot, 'AA.fig'); %Line 43
but get this error:
Error using savefig (line 43)
H must be an array of handles to valid figures
So how do I properly use savefig and openfig within app-designer?
Many thanks!

Best Answer

I’d use the function created by Adam Danz found on https://www.mathworks.com/matlabcentral/answers/281318-how-can-i-save-a-figure-within-app-designer It worked well for me. You can use this and then use the saveas function to save your new figure. I suppose you can set the visibility of your new figure to ‘off’ if need be, but you’ll probably have to do that yourself.
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