How to respond to update of axis data?

I need to set a callback for when data in axis is updated. Is there a way to do this? i.e is their a way to be notified when a figure/axis/line data changes.

Thanks

Answer 1

[Eric Delgado]

Hey @bethel o, yeah, it's possible. "YData" is not a property of figure or axes, ok?

fig = figure;
ax1 = axes(fig);

h = plot(ax1, randn(1001,1));
addlistener(h, 'YData', 'PostSet', @(~,~)disp("YData changed!"));

% Changing data...
h.YData(1) = 2*h.YData(1);

% Answer:
% "YData changed!"

[bethel o]

How do you acquired this kind of Jedi skills?