/// <summary>
/// Returns a <see cref="System.String"/> that represents this instance.
/// </summary>
///
/// <param name="format">The format.</param>
/// <param name="formatProvider">The format provider.</param>
///
/// <returns>
/// A <see cref="System.String"/> that represents this instance.
/// </returns>
///
public string ToString(string format, IFormatProvider formatProvider)
{
formatter f = new formatter();
f.format = format;
f.provider = formatProvider;
return String.Format("{0}x {1}y {2}z {3} = 0",
f.s(A), f.s(B), f.s(C), f.s(Offset));
}
/// <summary>
/// Returns a <see cref="System.String"/> that represents this instance.
/// </summary>
///
/// <param name="variable">The variable to put on the left hand side. Can
/// be either 'x', 'y' or 'z'.</param>
/// <param name="formatProvider">The format provider.</param>
///
/// <returns>
/// A <see cref="System.String"/> that represents this instance.
/// </returns>
///
public string ToString(char variable, IFormatProvider formatProvider)
{
formatter f = new formatter();
f.provider = formatProvider;
switch (variable)
{
case 'x': return String.Format("x = {0}y {1}z {2}",
f.s(-B / A), f.s(-C / A), f.s(-Offset / A));
case 'y': return String.Format("y = {0}x {1}z {2}",
f.s(-A / B), f.s(-C / B), f.s(-Offset / B));
case 'z': return String.Format("z = {0}x {1}y {2}",
f.s(-A / C), f.s(-B / C), f.s(-Offset / C));
default:
throw new FormatException();
}
}