WPF Graph Reset Axes to origin

[Maverjk]

Hi 

Is there a way to reset an horizontal axis to the origin (0)?

I already used ResetZoomPan(), but this set only Pan and Zoom to its initial state.

I would like to reset the graph as appears in the first loading.

Thanks to everyone for the help.

[phansen]

There is nothing in the graph that keeps track of the history of axis values outside of interactions.

If you want to reset the graph to how it appears when data is first loaded, then you can use the ZoomToFit method. If you want to reset the graph to the default range, then you can update the Range property on the axes.

[Maverjk]

Thanks Paul for your suggestion.

Can you give me a clue how to reset the Range of a single Axis (lets say the first)?

[phansen · Accepted solution]

Assuming your graph is setup similar to the example below:

    <ni:Graph x:Name="graph" ...>
      <ni:Graph.Axes>
        <ni:AxisDouble x:Name="xAxis" Orientation="Horizontal" ... />
      </ni:Graph.Axes>
      ...
    </ni:Graph>

You can set the range using the named axis element:

    xAxis.Range = new Range(0.0, 10.0)

Or by casting the first item in the Axes collection, if it is unnamed:

    ((Axis<double>)graph.Axes[0]).Range = new Range(0.0, 10.0)

[Maverjk]

That was my final solution:

Graph.ResetZoomPan();
((Axis<Int32>)Graph.Axes[0]).Range = new NationalInstruments.Controls.Range<Int32>(0, 5000);

Thanks for your help.

[IntellitoolEng]

I have tried this many way without success.

<ni:AxisDouble x:Name="V2y" Adjuster="FitExactly" LabelVisibility="Hidden" Orientation="Vertical" Range="-2, 2, System.Double" Visibility="Hidden" />

V2y.Range = Range(-2.0, 2.0)   result in error,

Error 1 'Range' is ambiguous, imported from the namespaces or types 'NationalInstruments.Controls, NationalInstruments.UI'. U:\PB\Intelitool\WpfApplication1\WpfApplication1\Page1.xaml.vb 254 25 WpfApplication1

I can not remove the ui reference as this is part of a large winform project

V2y.Range = New NationalInstruments.Controls.Range(-2, 2)  result in error

Error 2 Type 'NationalInstruments.Controls.Range' has no constructors. U:\PB\Intelitool\WpfApplication1\WpfApplication1\Page1.xaml.vb 255 25 WpfApplication1

What else should I do?

Thanks in advance

[phansen]

You are missing the type arguments on the generic Range<TData> type. You can create a new range in VB using New Range(Of Double)( -2.0, 2.0 ), or by calling Range.Create( -2.0, 2.0 ) on the static Range helper class.

[IntellitoolEng]

Hi Paul

Thank you the code

AxisXzz.Range = NationalInstruments.Controls.Range.Create(-2000.0, 2000.0)

worked great.

Thanks

George