protected SliceChartBase()
 {
     Model = new PlotModel();
     XAxis = new LinearAxis
     {
         Key = "X",
         AbsoluteMinimum = 0,
         IsZoomEnabled = true,
         IsPanEnabled = true,
         Position = AxisPosition.Bottom
     };
     YAxis = new LinearAxis
     {
         Key = "Y",
         IsZoomEnabled = false,
         IsPanEnabled = false
     };
     Series = new LineSeries();
     Model.Axes.Add(XAxis);
     Model.Axes.Add(YAxis);
     Model.Series.Add(Series);
     Model.ApplyDefaultTheme();
 }
 private void RefreshModel()
 {
     Model = new PlotModel();
     _xAxis = new CategoryAxis
     {
         Key = "X",
         IsPanEnabled = true,
         IsZoomEnabled = false,
         Position = AxisPosition.Bottom,
         GapWidth = 0.1
     };
     Model.Axes.Add(_xAxis);
     Model.Axes.Add(new LinearAxis
     {
         IsPanEnabled = false,
         IsZoomEnabled = false,
         Key = "Y",
         Position = AxisPosition.Left
     });
     _series = new ColumnSeries();
     Model.Series.Add(_series);
     Model.ApplyDefaultTheme();
 }