WPF Graph - How to retrive horizontal & veritcal values when Zoom performed by GraphInteractionPalette

[yrnhkn]

Hi,

I am using WPF graph and its  data changes continuously every 50ms.

I set XAxesRangeAdjuster  to FitExactly and I want to use GraphInteractionPallete to Zoom/ZoomHorizontal/ZoomVertical/ZoomIn/ZoomOut interactions.

When I  select area and want to ZoomHorizontal it resets because new data changes the range again.

I want to set range manually in ViewModel  and  select graph data manually  when Zoom event occurred.

How could we get selected area start&end positions?

Is there a event or something else when ZoomToFit or another button clicked?

Best Regards,

Thanks,

Thanks,

[phansen · Accepted solution]

I am traveling this month, so I will not be able to test anything directly, but I believe  the Range Changed event on the axis will notify you of all range changes. Then you can use a preview click event ( https://forums.ni.com/t5/Measurement-Studio-for-NET/WPF-Legend-Item-Mouse-Event/m-p/2428032 ) to update the Adjuster after a legend button causes a range change.

[yrnhkn]

Hi Paul,

Thank you for solution 🙂

Best Regards,

Hakan