I'm happy with NDataZoomTool , but I want also to be able to do the following

1. Is it possible to combine NDataZoomTool + NOffsetTool(or in another way), so I want to be able to zoom in data and at the same time move screen to select data which are close to current selected subset

2. When I have NDataZoomTool , I want to be able dig in data using mouse wheel (when I move wheel down, it will behave as if I selected smaller area with NDataZoomTool and moving wheel up will move me step back showing previous subset of data)

3. I want to show current selected subset of data (like small chart in additional window where I show data "" + selected area)

Thanks in advance!

Hi Ereona,

The following code shows how to center the axis when its scrolling to some value (in this case 30):

   double xValue = 30;
   NCartesianChart chart = (NCartesianChart)nChartControl1.Charts[0];

   NNumericAxisPagingView view = chart.Axis(StandardAxis.PrimaryX).PagingView as NNumericAxisPagingView;

   if (view.Enabled)
   {
    double length = view.Length;
    double begin = xValue - length / 2.0;
    double end = xValue + length / 2.0;
    
    view.ZoomIn(new NRange1DD(begin, end), 0.001);
    nChartControl1.Refresh();
   }

Note that you have to check whether the current paging view is enabled and ZoomIn afterwards.

Best Regards,
Nevron Support Team