Why are the zoom callbacks of my figure not restored when I save and reopen my figure in MATLAB 7.8 (R2009a)?

When I run the following code:

      f = figure;

      plot(1:10)

      z1 = zoom(gcf);

      set(z1,'ActionPostCallback','TMWtest')

      saveas(f,'TMW_example_fig','fig')

      close all

      drawnow

      open('TMW_example_fig.fig')

      z2 = zoom(gcf);

      get(z2,'ActionPostCallback')

The GET command returns the following:

 ans =

      []

Why is the zoom callback not saved?

Answer 1

[MathWorks Support Team]

The ability to save zoom callbacks as part of the figure file is not available in MATLAB.

To work around this issue, you can use the "CreateFcn" callback (which is saved by the figure). We can use this callback to create the zoom callback automatically every time the figure is created.

Consider the following code:

      f = figure;

      plot(1:10)

      set(f,'CreateFcn','z = zoom(gcf);set(z,''ActionPostCallback'',''TMWtest'')')

This code will automatically set the zoom callback "ActionPostCallback" to call "TMWtest.m", and this will happen every time the figure is opened.

Answer 2

[Charles]

Thank you, this helps even on version 2015a. It puzzles me why the zoom callbacks are not saved with the figure while the datatip callbacks are. But, this does resolve the issue for me.

Answer 3

[Charles]

Thank you, this helps even on version 2015a. It puzzles me why the zoom callbacks are not saved with the figure while the datatip callbacks are. But, this does resolve the issue for me.