private NormalizationStatus CheckWeights(List <dtoItemWeight> weights, Boolean isFuzzy, Boolean autoUpdateWeights)
{
NormalizationStatus nStatus = NormalizationStatus.none;
if (weights.Any(i => !String.IsNullOrWhiteSpace(i.Value)))
{
LM.MathLibrary.Extensions.FuzzyExtension.Normalization status;
TriangularFuzzyNumber[] w = null;
try
{
if (isFuzzy)
{
w = weights.Select(i => TriangularFuzzyNumber.Parse(i.Value)).ToArray();
}
else
{
w = weights.Select(i => new TriangularFuzzyNumber(long.Parse(i.Value))).ToArray();
}
w = w.NormalizeWeights(out status).ToArray();
if (status == FuzzyExtension.Normalization.normalizable)
{
Int32 index = 0;
foreach (TriangularFuzzyNumber i in w)
{
if (w[index] != null)
{
weights[index].Value = (isFuzzy ? w[index].ToString() : w[index].ToCrispy().ToString());
}
else
{
weights[index].Value = "";
}
index++;
}
if (autoUpdateWeights)
{
View.UpdateWeights(weights);
}
}
}
catch (Exception ex)
{
status = FuzzyExtension.Normalization.none;
}
nStatus = TranslateStatus(status);
}
View.CurrentNormalization = nStatus;
return(nStatus);
}
public dtoItemRating VerifySettings(dtoItemRating settings)
{
if (settings.Error == DssError.None)
{
switch (settings.RatingType)
{
case RatingType.simple:
TemplateRatingValue item = Service.RatingValueGet(settings.IdRatingValue);
if (item != null)
{
if (item.IsFuzzy)
{
TriangularFuzzyNumber fValue = null;
if (TriangularFuzzyNumber.TryParse(item.FuzzyValue, out fValue))
{
settings.Value = fValue.CenterOfGravity;
settings.ValueFuzzy = item.FuzzyValue;
}
else
{
settings.Error = DssError.InvalidWeight;
}
}
else
{
settings.Value = item.Value;
}
}
else
{
settings.Error = DssError.InvalidWeight;
}
break;
case RatingType.intermediateValues:
TemplateRatingValue fromValue = Service.RatingValueGet(settings.IdRatingValue);
TemplateRatingValue toValue = Service.RatingValueGet(settings.IdRatingValueEnd);
if (fromValue != null && toValue != null)
{
if (fromValue.IsFuzzy)
{
try{
TriangularFuzzyNumber fValue = TriangularFuzzyNumber.Intermediate(TriangularFuzzyNumber.Parse(fromValue.FuzzyValue), TriangularFuzzyNumber.Parse(toValue.FuzzyValue));
settings.Value = fValue.CenterOfGravity;
settings.ValueFuzzy = fValue.ToString();
}
catch (Exception ex)
{
settings.Error = DssError.InvalidWeight;
}
}
else
{
settings.Value = ((fromValue.Value + toValue.Value) / 2);
}
}
else
{
settings.Error = DssError.InvalidWeight;
}
break;
}
}
return(settings);
}
