How to enable the data tip interaction functionality when using a custom "ButtonDownFcn" in MATLAB R2023a?

I am using MATLAB R2023a, and I have a custom "ButtonDownFcn" to display the point clicked in the plot.

x = linspace(0,2*pi,100);
y = sin(x);
p = plot(x,y);
xlabel('x');
ylabel('sin(x)');

% Custom ButtonDownFcn to display point clicked
set(p,'ButtonDownFcn',{@buttondownfcn}); 

function buttondownfcn(~,event)
    pts = event.IntersectionPoint(1:2);
    disp(pts);
end

However, I notice that when using a custom "ButtonDownFcn", I no longer have the default interactivity of a plot (e.g., displaying data tip upon hovering, etc.). How can I enable the data tip interaction functionality when using a custom "ButtonDownFcn"?

Answer 1

[MathWorks Support Team]

Currently, the "ButtonDownFcn" callback does not have the functionality to enable data tip interaction. To enable the data tip interaction functionality in MATLAB R2023a, consider using the "Hit" event instead of a "ButtonDownFcn". Please see the following code snippet for an example.

x = linspace(0,2*pi,100);
y = sin(x);
p = plot(x,y);
xlabel('x');
ylabel('sin(x)');

% Add a Hit event listener
addlistener(p,'Hit',@(src,event)buttondownfcn(src,event));

function buttondownfcn(~,event)
    pts = event.IntersectionPoint(1:2);
    disp(pts);
end