public FuzzyValue Build()
{
var result = new FuzzyValue();
result.Name = name;
result.Category = category;
result.Index = index;
result.Center = center;
result.UpperWidth = upperWidth;
result.LowerWidth = lowerWidth;
result.LeftModifier = leftModifier;
result.RightModifier = rightModifier;
result.GetMembership = membershipFunction;
if (autoIncrement)
{
index++;
}
return(result);
}
private double Linear(FuzzyValue value, double CrispValue)
{
var distance = Math.Abs(value.Center - CrispValue);
// CrispValue is the same as the value's center
if (distance == 0)
{
return(1);
}
// if either side of the center is immediately raised to 0 or 100
if (value.LeftModifier != 0 || value.RightModifier != 0)
{
var modifier = (value.Center > CrispValue ? value.LeftModifier : value.RightModifier);
if (modifier != DEFAULT)
{
return(modifier == CEIL ? 1 : 0);
}
}
var upperDistance = value.UpperWidth / 2;
var lowerDistance = value.LowerWidth / 2;
// distance is within upper part of the trapezoid
if (distance <= upperDistance)
{
return(1);
}
// distance is on the slope trapezoid
else if (distance < lowerDistance)
{
var medianDistance = lowerDistance - upperDistance;
return(Math.Abs((lowerDistance - distance) / medianDistance));
}
// distance is outside the trapezoid
else
{
return(0);
}
}