get line plot data just by mouse stay on it (without click)
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Morteza
on 27 Jan 2013
Commented: Ouael Chkoundali
on 25 Feb 2019
I plot my data and I need to show data (Y) in text box when I put the mouse cursor on it (without click), is there any fuction that help me?
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Accepted Answer
Teja Muppirala
on 28 Jan 2013
Here is a simple example that outlines how to do it using HITTEST.
function my_example
plot(rand(5));
set(gcf,'windowbuttonmotionfcn',@getcoords)
function getcoords(varargin)
this = hittest;
if strcmp(get(this,'type'),'line');
cp = get(gca,'currentpoint');
ht = title(num2str(cp([1 3])));
set(ht,'color',get(this,'color'));
end
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Ouael Chkoundali
on 25 Feb 2019
Hi Teja,
and if I want to display the mouse position only when it is on an axes? I have a GUI with 1 axes and buttons.
More Answers (2)
Walter Roberson
on 28 Jan 2013
datacursormode() with a custom callback function that sends the coordinate to the edit box as well as displaying it on the screen.
Jan
on 28 Jan 2013
You can use the WindowsButtonMotion function of the parent figure. There OVEROBJ can check, if the mouse is over the specified axes and the CurrentPoint property of this axes contains the coordinates. Now you need a method to find the nearest (interpolated?) point of your data for the display.
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