wpf graph limit zoom

[eugenem]

Is it possible to limit zoom factor at WPF Scatter Graph? When I scale it too much, it simply stucks. So I'd like to limit it to say x200.

[phansen]

There is no property to limit the zoom on an axis. To achieve this, you will need to use the RangeChanged event, check whether then delta for the new range is acceptable, or revert to the previous range if it is too small.

[netsirk]

Hi eugenem,

Take a look at the zoom discussion on this forum post.

Best,

[eugenem]

I use this event already. But how do I get previous range?

void AxisY_RangeChanged(object sender, EventArgs e)

[phansen]

I'm afraid the previous range is not available through the event. You will need to use a separate variable to track the range (i.e. in the change event, if the new range is valid, update the variable; if the new range is not valid, update the axis to use the value saved in the variable).

I have created a task to provide the previous range value in the event.

[phansen]

Just wanted to let you know that we have updated the RangeChanged event to report the previous range in the Measurement Studio 2015 release.