How to have a zero based x axis ?

[Stéphane]

I have the following (simplified) xaml:

<telerik:RadCartesianChart x:Name="chart">
   <telerik:RadCartesianChart.HorizontalAxis >
      <telerik:CategoricalAxis  />
   </telerik:RadCartesianChart.HorizontalAxis>

   <telerik:RadCartesianChart.VerticalAxis>
      <telerik:LinearAxis />
   </telerik:RadCartesianChart.VerticalAxis>
                              
   <telerik:RadCartesianChart.Series>
      <telerik:LineSeries Stroke="Blue"  ItemsSource="<Binding to a double array>"
      </telerik:LineSeries>
   </telerik:RadCartesianChart.Series>
</telerik:RadCartesianChart>

By default the x axis starts from "1" (See picture). How to have the x axis starting at "0" ?

Thanks

 

 

[Martin Ivanov]

Hello Stéphane,

To achieve your requirement you can use a ScatterLineSeries with two LinearAxis. This way you will have numerical data on both axes and if the automatically calculate range won't work for you, you can manually define one using the axis Minimum and Maximum properties.

The current result on your side appears because when you populate the chart series with a one dimensional data (array of doubles), the chart will automatically fill the category value of the data points with the index of the data item (starting from 1). So you have categories for, 1, 2, 3, etc., to the count of the array.

Regards,
Martin Ivanov
Progress Telerik

[Stéphane]

Done. Thank you for reply.