public Double Parse(String text)
{
double d = 0, m = 0, s = 0;
double result;
Boolean negate = false;
int length = text.Length;
if (length > 0)
{
char c = text[length - 1];
switch (c)
{
case 'W':
case 'S':
negate = true;
text = text.Substring(0, text.Length - 1);
break;
case 'E':
case 'N':
text = text.Substring(0, text.Length - 1);
break;
}
}
int i = text.IndexOf('d');
if (i == -1)
{
i = text.IndexOf('\u00b0');
}
if (i != -1)
{
String dd = text.Substring(0, i);
String mmss = text.Substring(i + 1);
d = Convert.ToDouble(dd, CultureInfo.InvariantCulture);
i = mmss.IndexOf('m');
if (i == -1)
{
i = mmss.IndexOf('\'');
}
if (i != -1)
{
if (i != 0)
{
String mm = mmss.Substring(0, i);
m = Convert.ToDouble(mm, CultureInfo.InvariantCulture);
}
if (mmss.EndsWith("s") || mmss.EndsWith("\""))
{
mmss = mmss.Substring(0, mmss.Length - 1);
}
if (i != mmss.Length - 1)
{
String ss = mmss.Substring(i + 1);
s = Convert.ToDouble(ss, CultureInfo.InvariantCulture);
}
#if SILVERLIGHT
if (m < 0 || m > 59)
{
throw new ArgumentOutOfRangeException("m", "Minutes must be between 0 and 59");
}
if (s < 0 || s >= 60)
{
throw new ArgumentOutOfRangeException("s", "Seconds must be between 0 and 59");
}
#else
if (m < 0 || m > 59)
{
throw new ArgumentOutOfRangeException("m", m, "Minutes must be between 0 and 59");
}
if (s < 0 || s >= 60)
{
throw new ArgumentOutOfRangeException("s", s, "Seconds must be between 0 and 59");
}
#endif
}
else if (i != 0)
{
m = Convert.ToDouble(mmss, CultureInfo.InvariantCulture);
}
if (_isDegrees)
{
result = ProjectionMath.DegreesMinutesSecondsToDegrees(d, m, s);
}
else
{
result = ProjectionMath.DegreesMinutesSecondsToRadians(d, m, s);
}
}
else
{
result = Convert.ToDouble(text, CultureInfo.InvariantCulture);
if (!_isDegrees)
{
result = ProjectionMath.ToRadians(result);
}
}
if (negate)
{
result = -result;
}
return(result);
}