How to respond to update of axis data?

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bethel o 2022-10-6

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评论： bethel o 2022-10-7

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

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采纳的回答

Eric Delgado 2022-10-6

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编辑：Eric Delgado 2022-10-6

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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!"