/// <summary>
/// Calculate the Minus Value of line
/// </summary>
/// <param name="value"></param>
/// <param name="errorvalue"></param>
/// <param name="axischeck"></param>
/// <returns></returns>
private double GetMinusValue(double value, double errorvalue, bool axischeck)
{
if ((ActualXAxis is DateTimeAxis) && axischeck)
{
var dateaxis = ActualXAxis as DateTimeAxis;
DateTime verDate = Convert.ToDouble(value).FromOADate();
return(DateTimeAxisHelper.IncreaseInterval(verDate, -errorvalue, dateaxis.IntervalType).ToOADate());
}
return(value - errorvalue);
}
internal Point DateTimeIntervalCalculation(double errorvalue, DateTimeIntervalType type)
{
DateTime date = Convert.ToDouble(_horLeftpoint.X).FromOADate();
DateTime date1 = Convert.ToDouble(_horRightpoint.X).FromOADate();
if (_parentSeries.HorizontalDirection == ErrorBarDirection.Plus)
{
_horLeftpoint.X = DateTimeAxisHelper.IncreaseInterval(date, 0, type).ToOADate();
_horRightpoint.X = DateTimeAxisHelper.IncreaseInterval(date1, errorvalue, type).ToOADate();
}
else if (_parentSeries.HorizontalDirection == ErrorBarDirection.Minus)
{
_horLeftpoint.X = DateTimeAxisHelper.IncreaseInterval(date, -errorvalue, type).ToOADate();
_horRightpoint.X = DateTimeAxisHelper.IncreaseInterval(date1, 0, type).ToOADate();
}
else
{
_horLeftpoint.X = DateTimeAxisHelper.IncreaseInterval(date, -errorvalue, type).ToOADate();
_horRightpoint.X = DateTimeAxisHelper.IncreaseInterval(date1, errorvalue, type).ToOADate();
}
return(new Point(_horLeftpoint.X, _horRightpoint.X));
}
