/// <summary>
/// Converts the value of the current line to its equivalent string
/// representation by using the specified format and culture-specific
/// format information for its components.
/// </summary>
/// <param name="format">A standard or custom numeric format string.</param>
/// <param name="provider">An object that supplies culture-specific formatting information.</param>
/// <returns>The string representation of the current instance, as specified
/// by format and provider.</returns>
/// <exception cref="System.FormatException">format is not a valid format string.</exception>
public string ToString(string format, IFormatProvider provider)
{
Contract.Ensures(Contract.Result <string>() != null);
return(String.Format("({0}, {1})", Start.ToString(format, provider), End.ToString(format, provider)));
}
/// <summary>
/// Converts the value of the current ray to its equivalent string
/// representation in Cartesian form by using the specified format and culture-specific
/// format information for its components.
/// </summary>
/// <param name="format">A standard or custom numeric format string.</param>
/// <returns>The string representation of the current instance in Cartesian form, as specified
/// by format and provider.</returns>
/// <exception cref="System.FormatException">format is not a valid format string.</exception>
public string ToString(string format, IFormatProvider provider)
{
return(String.Format("Position:{0} Direction:{1}", Position.ToString(), Direction.ToString()));
}