//public virtual convertToUnit()
/// <summary>
/// Gets the optimal unit.
/// </summary>
/// <param name="current">The current.</param>
/// <param name="length">The length.</param>
/// <returns></returns>
public measureSystemUnitEntry GetOptimalUnit(measureSystemUnitEntry current, Int32 length)
{
measureSystemUnitEntry candidate = current;
measureSystemUnitEntry next = null;
double factorDistance = 1;
Int32 factorStrDistance = 0;
Int32 estLength = length;
Int32 difference = length - targetStringLength;
if (length > targetStringLength)
{
while (estLength > targetStringLength)
{
next = GetUnit(candidate, measureUnitLevelChange.goHigher);
if (candidate == next)
{
break;
}
factorStrDistance = next.GetFactorDistance(current).GetFactorStrLenChange();
estLength = length - factorStrDistance;
difference = estLength - targetStringLength;
if (difference < factorStrDistance)
{
break;
}
candidate = next;
}
}
else if (length < targetStringLength)
{
while (estLength < targetStringLength)
{
next = GetUnit(candidate, measureUnitLevelChange.goLower);
if (candidate == next)
{
break;
}
factorStrDistance = next.GetFactorDistance(current).GetFactorStrLenChange();
estLength = length + factorStrDistance;
difference = targetStringLength - estLength;
if (difference < factorStrDistance)
{
break;
}
candidate = next;
}
}
return(candidate);
}
public override void convertToUnit(measureSystemUnitEntry targetUnit)
{
double fd = targetUnit.GetFactorDistance(info.unit); //.GetFactorDistance(targetUnit);
primValue = primValue * Convert.ToDecimal(fd);
info.unit = targetUnit;
}
/// <summary>
/// Gets the factor distance.
/// </summary>
/// <param name="current">The current.</param>
/// <param name="direction">The direction.</param>
/// <returns></returns>
public double GetFactorDistance(measureSystemUnitEntry current, measureUnitLevelChange direction)
{
measureSystemUnitEntry next = GetUnit(current, direction);
return(current.GetFactorDistance(next));
}