public String DoubleToFormattedString(Double coordvalue, bool iswgs, ECoordsViewType viewtype)
{
String result = "";
int sign = Math.Sign(coordvalue);
coordvalue = Math.Abs(coordvalue);
if (!iswgs)
{
result = coordvalue.ToString();
}
else
{
switch (viewtype)
{
case ECoordsViewType.Degrees:
{
result = String.Format(_coordsCulture, "{0:f12}°", coordvalue);
break;
}
case ECoordsViewType.DegreesMinutes:
{
int degree = (int)Math.Floor(coordvalue);
double minutes = (coordvalue - degree) * 60;
result = String.Format(_coordsCulture, "{0}° {1:f12}'", degree, minutes);
break;
}
case ECoordsViewType.DegreesMinutesSeconds:
{
double degree = (int)Math.Truncate(coordvalue);
double minutes = (coordvalue - degree) * 60;
int minutesint = (int)Math.Floor(minutes);
double seconds = (minutes - minutesint) * 60;
result = String.Format(_coordsCulture, "{0}° {1}' {2:f12}''", degree, minutesint, seconds);
break;
}
}
}
if (sign < 0)
{
result = "-" + result;
}
return(result);
}
public Double?FormattedStringToDouble(String formstring, bool iswgs, ECoordsViewType viewtype)
{
formstring = formstring.Trim();
bool makeNegativ = false;
if (!String.IsNullOrEmpty(formstring))
{
makeNegativ = formstring.StartsWith("-");
if (makeNegativ)
{
formstring = formstring.Substring(1);
}
}
Double?result = null;
bool parsed = true;
if (!iswgs)
{
double degrees;
formstring = Regex.Replace(formstring, "\\D", CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator);
parsed &= Double.TryParse(formstring, out degrees);
if (parsed)
{
result = degrees;
}
}
else
{
double degrees = 0.0;
double minutes = 0.0;
double seconds = 0.0;
switch (viewtype)
{
case ECoordsViewType.Degrees:
{
String pattern = @"^(.*)°$";
Match match = Regex.Match(formstring, pattern);
string coordDegrees = match.Groups[1].Value;
coordDegrees = Regex.Replace(coordDegrees, "\\D", ".");
parsed &= Double.TryParse(coordDegrees, NumberStyles.Any, _coordsCulture, out degrees);
break;
}
case ECoordsViewType.DegreesMinutes:
{
String pattern = @"^(.*)° (.*)'$";
Match match = Regex.Match(formstring, pattern);
string coordDegrees = match.Groups[1].Value;
string coordMinutes = match.Groups[2].Value;
coordMinutes = Regex.Replace(coordMinutes, "\\D", ".");
parsed &= Double.TryParse(coordDegrees, NumberStyles.Any, _coordsCulture, out degrees);
parsed &= Double.TryParse(coordMinutes, NumberStyles.Any, _coordsCulture, out minutes);
if (parsed)
{
degrees = Math.Truncate(degrees);
}
break;
}
case ECoordsViewType.DegreesMinutesSeconds:
{
String pattern = @"^(.*)° (.*)' (.*)''$";
Match match = Regex.Match(formstring, pattern);
string coordDegrees = match.Groups[1].Value;
string coordMinutes = match.Groups[2].Value;
string coordSeconds = match.Groups[3].Value;
coordSeconds = Regex.Replace(coordSeconds, "\\D", ".");
parsed &= Double.TryParse(coordDegrees, NumberStyles.Any, _coordsCulture, out degrees);
parsed &= Double.TryParse(coordMinutes, NumberStyles.Any, _coordsCulture, out minutes);
parsed &= Double.TryParse(coordSeconds, NumberStyles.Any, _coordsCulture, out seconds);
if (parsed)
{
degrees = Math.Truncate(degrees);
minutes = Math.Truncate(minutes);
}
break;
}
}
if (parsed)
{
double coordLimit = (CoordType == ECoordinateType.Longitude) ? 180 : 90;
if (degrees < -coordLimit)
{
degrees = -coordLimit;
}
if (degrees > coordLimit)
{
degrees = coordLimit;
}
if (viewtype != ECoordsViewType.Degrees && Math.Abs(degrees) == coordLimit)
{
minutes = 0;
seconds = 0;
}
else
{
if (minutes < 0)
{
minutes = 0;
}
if (minutes > 60)
{
minutes = 60;
}
if (seconds < 0)
{
seconds = 0;
}
if (seconds > 60)
{
seconds = 60;
}
}
int sign = Math.Sign(degrees) == 0 ? 1 : Math.Sign(degrees);
result = ((seconds / 60d + minutes) / 60d + Math.Abs(degrees)) * sign;
}
}
if (makeNegativ)
{
result = result * (-1);
}
return(result);
}
