Other display a crosshair on a linegraph

[Cenny]

Good morning,
I am looking for a grap view for B4A that can display a crosshair on a linegraph and follows the line when you move over the graph. (See picture).
It should also be possible to retrieve the values from the x- and y- axis like on the picture.

Thanks
Cenny Breeman

 

[Erel]

There are several charts implementations available: https://www.b4x.com/android/forum/pages/results/?query=charts

If you understand the "charts framework" code then it shouldn't be too difficult to add the tooltip or the moving dot.