exportgraphics dynamic file name

What's the correct syntax if you want to name the files dynamically when using exportgraphics?

I have a cell array A with 16 titles in each columns that are assigned to the colorbar string. I want to use the same titles to name the files.

for k = 1:16
    
    %rest of the code
        c = colorbar;
        c.Label.String = string (A (:,k));
        exportgraphics(gcf, string (A(:,k)) '.png' ,'Resolution',DPI) %this doesn't work
    
end

Answer 1

[Ive J]

% A = {'name1', ...}
for k = 1:16
    
    %rest of the code
        c = colorbar;
        c.Label.String = A{k};
        exportgraphics(gcf, string(A{k}) + ".png" ,'Resolution',DPI) %this doesn't work
    
end

You could also use strcat, join or similar functions.

[Pelajar UM]

Perfect! Is there a way to avoid uifigure from popping out every time you try to export the plot? I close it at the end of the loop but it would be good if it doesn't show up in the first place.

[Ive J]

You can set visible property of figure to off when creating one, and close if afterwards:

for
    fig = figure('Visible', 'off');
    ax = axes(fig);
    plot(ax, 1:10); % plot something
    exportgraphics(fig, 'test.png')
    close(fig)
end

[Pelajar UM]

Wonderful. Thank you so much. On a related note, what if I want to output the same loop to some UIAxes:

s = trisurf(F,P(:,1),P(:,2),P(:,3),app.UITable4.Data(:,k+5),'Parent', app.UIAxes40_k);

app.UIAxes40_k and app.UIAxes40_(k) don't work.

[Ive J]

Not sure about that (not experienced with apps), but this works:

ax = uiaxes;
[x,y] = meshgrid(1:15,1:15);
z = peaks(15);
T = delaunay(x,y);
trisurf(T,x,y,z, 'parent', ax)

[Pelajar UM]

Yes, it works without the "k". I mean how do you incorporate k (k represents the loop) in the title of the UIAxes?

for k = 1:11
                
                s = trisurf(F,P(:,1),P(:,2),P(:,3),app.UITable4.Data(:,k+5),'Parent', app.UIAxes40_k);
                set(s,'LineWidth',0.1);
                
                s.EdgeColor = 'none';

                colormap jet;
                c = colorbar;
                c.Label.String = A{k};

            end

[Ive J]

Do you have multiple axes or only one axis that you like to update it within the loop? In case of one axis, you don't need to pass the k counter within the loop (it's just one single axis: app.UIAxes).

[Pelajar UM]

I have multiple axes. Basically the plots that I am exporting, I want to show them all next to each other (11 separate axes with names app.UIAxes40_1, app.UIAxes40_2, and so on....

[Ive J]

So you need to pass the corresponding axis tag to trisurf:

for ...
        s = trisurf(..., 'Parent', app.("UIAxes40_" + k);
end

[Pelajar UM]

Exactly what I was looking for. Thanks a lot!

[Ive J]

Glad it works

cheers!