Using CurrentPoint in UIAxes in AppDesigner with timedate x axis

Folks,

CurrentPoint returns a value that is not a timedate format. I do not know how to handle this. I did a Google search, but could not find the answer. I would like my ButtonDown callback to be able to return a timedate value corresponding to the x-axis:

cPt = app.UIAxesRaw.CurrentPoint(1, 1:2);

But it returns a value around 0.95 always.

Thanks for your help!

Answer 1

[Stephen23]

Because all of the data are returned in one array any datetime values are converted into a numeric equivalent (i.e. to provide one homogenous array). You could use DATETIME to convert the relevant x-value back to a DATETIME object, but the easier and more general approach is to use NUM2RULER:

https://www.mathworks.com/help/matlab/ref/num2ruler.html

cPt = app.UIAxesRaw.CurrentPoint(1,1:2)
xDt = num2ruler(cPt(1),app.UIAxesRaw.XAxis)

See also:

https://www.mathworks.com/matlabcentral/answers/370074-gca-currentpoint-with-the-datetime-ticks-on-the-x-axis

https://www.mathworks.com/help/matlab/ref/matlab.graphics.axis.axes-properties.html#budumk7-XAxis

[Kristoffer Walker]

Thank you, Stephen!