how to get data cursor values on user input ?
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Hello all , how can I get value of data cursor with using datacursormode and store into a variable without using pause command ? Means it should wait infinitely till when user gives input .Now I am using this code ...
h = datacursormode;
set(h,'DisplayStyle','datatip','SnapToData','off');
pause(5);
s = getCursorInfo(h);
x=s.Position;
Thank you
1 个评论
Adam Danz
2020-10-29
> "how can I get value of data cursor ... and store into a variable without using pause command"
There's no need for pause(5) in the first place. If you're having trouble with the timeing of the graphics updates you can reduce the pause to pause(0.1). Otherwise, your solution is sufficient to extract the data point coordinates.
回答（2 个）
Tara Prasad Mishra
2017-9-22
2 个投票
Hi,
You can do the following:-
set(gcf,'CurrentCharacter',char(1));
h=datacursormode;
set(h,'DisplayStyle','datatip','SnapToData','off');
waitfor(gcf,'CurrentCharacter',char(32));
s = getCursorInfo(h);
x=s.Position;
In the first line, you set the CurrentCharacter to the character of ASCII value 1. Next line turns on the data cursor mode and waits till the user presses the character of ASCII value 32 (spacebar). After the user presses spacebar getCursorInfo(h) collects the information of the cursor. It waits indefinitely till the user presses the spacebar.
Thanks.
Walter Roberson
2016-1-10
0 个投票
datacursormode is not about users giving input. datacursormode generates an UpdateFcn callback when the user moves the cursor, but cursor movement itself is not giving input (unless the user is drawing a curved line in freehand mode...)
If "gives input" has to do with the user clicking, then you should be using some other mechanism. For example there is ginput(), and there is using a figure WindowButtonMotionFcn . At any time you can request the CurrentPoint property of a figure or an axes.
2 个评论
yogesh jain
2016-1-10
Walter Roberson
2016-1-10
axes currentpoint along with axes ButtonDownFcn callback.
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2016-1-9
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