private static double ToDouble(AFValue value)
{
if (value == null || !value.IsGood || !IsNumericType(value.ValueTypeCode))
{
return(double.NaN);
}
return(value.ValueAsDouble());
}
private static double ToDouble(AFValue value)
{
if (value == null || !value.IsGood || !IsNumericType(value.ValueTypeCode))
{
return(double.NaN);
}
// https://techsupport.osisoft.com/Documentation/PI-AF-SDK/html/M_OSIsoft_AF_Asset_AFValue_ValueAsDouble.htm
return(value.ValueAsDouble());
}
private int CompareAFValue(AFValue val1, AFValue val2)
{
if (val1.ValueTypeCode != val2.ValueTypeCode)
{
throw new InvalidOperationException("Types of inputs do not match");
}
if (val1.ValueTypeCode == TypeCode.Double)
{
return(val1.ValueAsDouble().CompareTo(val2.ValueAsDouble()));
}
else if (val1.ValueTypeCode == TypeCode.Single)
{
return(val1.ValueAsSingle().CompareTo(val2.ValueAsSingle()));
}
else if (val1.ValueTypeCode == TypeCode.Int32)
{
return(val1.ValueAsInt32().CompareTo(val2.ValueAsInt32()));
}
else
{
throw new InvalidOperationException(string.Format("Cannot compare type {0}", val1.ValueType.Name));
}
}