How can I save a UIaxes-figure in a Matlab-Web-App by button callback

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Thomas Anvidalfarei
Thomas Anvidalfarei on 11 Oct 2019
Edited: Benjamin Großmann on 11 Nov 2021
Hy,
I would like to save a figure shown in a UIaxes of a deployed Matlab Web Aplication as png/jpeg-File in the ctfroot-directory.
example at button callback
print(app.UIaxes,'-dpng',fullfile(ctfroot,'myImage.png'))
The functionality of multiwindow to opy object to a new figure is not supported and i don't know how to access the figure in UIaxes.
Any help is appreciated
Best regards
Thomas
  2 Comments
Udo Schröder
Udo Schröder on 31 Jan 2020
@Jalaj
Your link does not give any solution. There the question is related to a GUI craeted with AppDesigner. This question is about WebApp GUI. The solution given in your link does not work for WebApp GUIs.
BR,
Udo

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Answers (1)

Benjamin Großmann
Benjamin Großmann on 11 Nov 2021
Edited: Benjamin Großmann on 11 Nov 2021
You can use exportgraphics(obj,filename) to write a graphics object obj to filename on the web app server temporarily. Afterwards call web(fileName) to display and/or download the file in the browser.
MWE:
function PrintButtonPushed(app, event)
fileName = 'graphic.pdf';
% or query for filename:
% [fileName, ~] = uiputfile('*.pdf');
exportgraphics(app.UIAxes, fileName)
web(fileName)
end

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