public SingleValue(CalcQuantity quantity, string name, string description, ParamType paramType)
{
CalcQuantity = quantity;
Name = name;
Description = description;
ParamType = paramType;
}
public void SetCalcStatus(CalcStatus calcStatus, string message = null)
{
if (CalcQuantity == null)
{
CalcQuantity = new CalcQuantity();
}
CalcQuantity.CalcStatus = calcStatus;
if (message != null)
{
CalcQuantity.Message = message;
}
}
/// <summary>
/// Calculate this level as musch as possible, using whatever information is currently known.
/// </summary>
/// <returns></returns>
private void Calculate_Here()
{
List <CalcQuantity> args = new List <CalcQuantity>();
foreach (SingleResult item in Inputs)
{
args.Add(item.CalcQuantity);
}
CalcQuantity result = Function.Calculate(args);
CalcQuantity = result;
}
// -----------------------------------------
public static CalcQuantity NewMathResult(double value, AnonUOM anonUOM)
{
CalcStatus calcStatus = CalcStatus.Good;
string message = "";
if (double.IsNaN(value) || double.IsInfinity(value))
{
calcStatus = CalcStatus.Bad;
message = "Math error";
}
CalcQuantity result = new CalcQuantity(
value: value,
calcStatus: calcStatus, message: message, anonUOM: anonUOM);
return(result);
}
public CalcQuantity(CalcQuantity source)
{
source.CopyMe(this);
}
} // Safe symbol to use in pure text scenarios
// ---------------------------
/// <summary>
/// Calculate the function as much as possible.
/// For 'NormalFunction' objects we expect that the result is calculated from the args, and we do not change the args.
/// However, this is not enforced at this time.
/// Special sub-types, such as 'FnEquals', behave differently.
///
/// Args will be converted to a consistent UOMSet, unless they are all UOMless, before calling the actual function calc.
/// If the function requires any other specific UOM it must do the conversion itself.
/// </summary>
/// <param name="args"></param>
/// <returns></returns>
public CalcQuantity Calculate(IList <CalcQuantity> args)
{
CalcQuantity result = new CalcQuantity();
try
{
// ------------------- Loop through all the args, checking and converting
UOMSet uomSet = null;
IList <CalcQuantity> convertedArgs = new List <CalcQuantity>();
bool bStarted = false;
for (int i = 0; i < args.Count; i++)
{
CalcQuantity arg = args[i];
// ------------------- Check for a Bad or missing value
if (IsNormalFunction) // Otherwise more flexibility is allowed so we can't demand that all args are known before calculation
{
switch (arg.CalcStatus)
{
case CalcStatus.Uknown:
case CalcStatus.Bad:
result.CalcStatus = arg.CalcStatus; result.Message = "Missing or bad arguments";
return(result);
default:
break;
}
}
// ------------------- Convert the arg to the same UOMSET
CalcQuantity convertedArg = new CalcQuantity(arg);
bool bDimLess = Dimensions.IsDimenionless(convertedArg?.AnonUOM?.Dimensions);
if (!bDimLess)
{
if ((uomSet == null) & (!bStarted || !IsNormalFunction))
{
bStarted = true;
uomSet = convertedArg?.AnonUOM?.UOMSet;
}
else if (IsNormalFunction && (convertedArg?.AnonUOM?.UOMSet != uomSet))
{
if ((uomSet == null) || (convertedArg?.AnonUOM?.UOMSet == null))
{
result.CalcStatus = CalcStatus.Bad; result.Message = "Some arguments have units while others do not"; // They must all have a specified UOMSet, or none of them have
return(result);
}
else
{
// Convert to the uomSet used by other args
AnonUOM argUOM = convertedArg.AnonUOM;
convertedArg.Value = argUOM.UOMSet.Convert(arg.Value, argUOM.Dimensions, uomSet);
convertedArg.AnonUOM = new AnonUOM(argUOM.Dimensions, uomSet);
}
}
}
convertedArgs.Add(convertedArg);
}
// ------------------- Call the concrete implementations to actually do the calcualtion
result = Calculate_Here(convertedArgs, uomSet);
if (!IsNormalFunction) // Then some args might have been changed by the calculation (e.g. assignment in FnEquals)
{
for (int i = 0; i < convertedArgs.Count; i++)
{
convertedArgs[i].CopyMe(args[i]);
}
}
}
catch (Exception)
{
return(new CalcQuantity(0, CalcStatus.Bad, "Unexpected failure", null));
}
return(result);
}
