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open figure stored in workspace

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Rubén Pérez Sanz
Rubén Pérez Sanz am 23 Jul. 2020
Kommentiert: Strider am 12 Nov. 2022
Hi there,
I am trying to open a figure that I have previously stored in the MATLAB Workspace. The figure has been stored in this way:
f1 = figure; figure(f1); plot(gr_RULE(10:end,1)); title('Rule for k');
However, when I try to open it the following error comes up:
>> openfig(f1)
Error using openFigure
The value of 'Filename' is invalid. It must satisfy the function: ischar.
Error in openfig>localGetFileAndOptions (line 104)
Error in openfig (line 37)
[filename, reuse, visibleAction] = localGetFileAndOptions(varargin);
I would appreciate if sb could let me know how to open them directly from the workspace and not from the directory file.
  2 Kommentare
Julio Vela
Julio Vela am 15 Dez. 2021
the answer is: figure(Name_figure). Example: figure(figure(1))
Strider am 12 Nov. 2022
Thanks Julio!

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Jalaj Gambhir
Jalaj Gambhir am 27 Jul. 2020
This is because when you close the figure, the object handle is deleted. Read documentation link for more details. You can check this by executing isgraphics(f1) in the command window, which determines the validity of a graphic object handle.
Also refer to the answer here.
Hope this helps!

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