public void Update()
{
var xList = ChartView.GetDataKeyList();
var yList = ChartView.GetDataValueList();
if ((double)_verticals[0].X1 < xList.Min())
{
_verticals[0].X1 = xList.Min();
}
else if ((double)_verticals[0].X1 >= xList.Max())
{
_verticals[0].X1 = xList.Max();
}
if ((double)_verticals[1].X1 < xList.Min())
{
_verticals[1].X1 = xList.Min();
}
else if ((double)_verticals[1].X1 >= xList.Max())
{
_verticals[1].X1 = xList.Max();
}
Width = Math.Round(Math.Abs(
(double)(_verticals[0].X1) -
(double)(_verticals[1].X1)), 6);
Value2 = String.Format("Width:{0:0.######}", Width);
var dataSeries = ChartView.GetRenderableSeriesCollection()[0].DataSeries;
var startVertical = (double)(_verticals[0].X1) > (double)(_verticals[1].X1) ? (double)(_verticals[1].X1) : (double)(_verticals[0].X1);
var endVertical = (double)(_verticals[0].X1) > (double)(_verticals[1].X1) ? (double)(_verticals[0].X1) : (double)(_verticals[1].X1);
var startIndex = dataSeries.FindIndex(startVertical, SciChart.Charting.Common.Extensions.SearchMode.Nearest);
var endIndex = dataSeries.FindIndex(endVertical, SciChart.Charting.Common.Extensions.SearchMode.Nearest);
int subRangeLength = endIndex - startIndex + 1;
List <double> yValues = new List <double>();
for (int i = startIndex; i <= endIndex; i++)
{
yValues.Add((double)dataSeries.YValues[i]);
}
double min = yValues.Min();
double max = yValues.Max();
Min = Math.Round(min, 6);
Value3 = String.Format("Min:{0:0.######}", Min);
Max = Math.Round(max, 6);
Value4 = String.Format("Max:{0:0.######}", Max);
Height = Math.Round(Math.Abs(Min - Max), 6);
Value1 = String.Format("Height:{0:0.######}", Height);
}