// Rounds a number to the nearest decimal.
// For instance, carpenters do not want to see a number like 4/5.
// That means nothing to them
// and you'll have an angry carpenter on your hands
// if you ask them cut a 2x4 to 36 and 4/5 inches.
// So, we would want to convert to the nearest 1/16 of an inch.
// Example: DecimalRound(0.8, 0.0625) Rounds 4/5 to 13/16 or 0.8125.
private static decimal DecimalRound(decimal val, decimal places)
{
string sPlaces = FractionConverter.Convert(places, true);
string[] s = sPlaces.Split('/');
if (s.Count() == 2)
{
int nPlaces = System.Convert.ToInt32(s[1]);
decimal d = Math.Round(val * nPlaces);
return(d / nPlaces);
}
return(val);
}
// Converts a value to feet and inches.
// Examples:
// 12.1667 converts to 12' 2"
// 4 converts to 4'
// 0.1667 converts to 2"
public static bool ReformatForFeetAndInches
(ref string line_type, bool zero_for_blank = true)
{
if (string.IsNullOrEmpty(line_type))
{
if (zero_for_blank)
{
line_type = "0'";
}
return(true);
}
decimal d = System.Convert.ToDecimal(line_type);
decimal d1 = Math.Floor(d);
decimal d2 = d - d1;
d2 = Math.Round(d2 * 12, 2);
string s1;
string s2;
s1 = d1 == 0 ? "" : d1.ToString() + "'";
s2 = d2 == 0 ? "" : FractionConverter.Convert(d2) + @"""";
line_type = string.Format(@"{0} {1}", s1, s2).Trim();
if (string.IsNullOrEmpty(line_type))
{
if (zero_for_blank)
{
line_type = "0'";
}
return(true);
}
return(true);
}
public static string Convert(decimal pvalue,
bool skip_rounding = false, decimal dplaces = (decimal)0.0625)
{
decimal value = pvalue;
if (!skip_rounding)
{
value = FractionConverter.DecimalRound(pvalue, dplaces);
}
if (value == Math.Round(value, 0)) // whole number check
{
return(value.ToString());
}
// get the whole value of the fraction
decimal mWhole = Math.Truncate(value);
// get the fractional value
decimal mFraction = value - mWhole;
// initialize a numerator and denomintar
uint mNumerator = 0;
uint mDenomenator = 1;
// ensure that there is actual a fraction
if (mFraction > 0m)
{
// convert the value to a string so that
// you can count the number of decimal places there are
string strFraction = mFraction.ToString().Remove(0, 2);
// store the number of decimal places
uint intFractLength = (uint)strFraction.Length;
// set the numerator to have the proper amount of zeros
mNumerator = (uint)Math.Pow(10, intFractLength);
// parse the fraction value to an integer that equals
// [fraction value] * 10^[number of decimal places]
uint.TryParse(strFraction, out mDenomenator);
// get the greatest common divisor for both numbers
uint gcd = GreatestCommonDivisor(mDenomenator, mNumerator);
// divide the numerator and the denominator by the greatest common divisor
mNumerator = mNumerator / gcd;
mDenomenator = mDenomenator / gcd;
}
// create a string builder
StringBuilder mBuilder = new StringBuilder();
// add the whole number if it's greater than 0
if (mWhole > 0m)
{
mBuilder.Append(mWhole);
}
// add the fraction if it's greater than 0m
if (mFraction > 0m)
{
if (mBuilder.Length > 0)
{
mBuilder.Append(" ");
}
mBuilder.Append(mDenomenator);
mBuilder.Append("/");
mBuilder.Append(mNumerator);
}
return(mBuilder.ToString());
}
