public override void ToGrid(double lon, double lat, out string gridValue)
{
char[] letters = new char[3];
double zoneLat = lat < -80 ? -80 : lat > 72 ? 72 : lat;
letters[0] = _zoneLetters[Convert.ToInt32(Math.Floor((zoneLat + 80) / 8))];
double n = lon >= 180 ? lon - 180 : lon + 180;
int zone = Convert.ToInt32(Math.Floor(n / 6)) + 1;
Hemisphere hemisphere = lat >= 0 ? Hemisphere.North : Hemisphere.South;
UTM utm = new UTM(zone, hemisphere);
double x;
double y;
utm.ToProjected(lon, lat, out x, out y);
double divisor = Math.Pow(10, 5 - _precision);
x = Math.Round(x / divisor) * divisor;
y = Math.Round(y / divisor) * divisor;
int setNumber = (zone - 1) % 6;
letters[1] = _columnLetters[(setNumber % 3) * 8 + Convert.ToInt32(Math.Floor(x / 100000)) - 1];
int rowOffset = setNumber % 2 == 1 ? 5 : 0;
y %= 2000000;
letters[2] = _rowLetters[(Convert.ToInt32(Math.Floor(y / 100000)) + rowOffset) % _rowLetters.Length];
x = (x % 100000) / divisor;
y = (y % 100000) / divisor;
string f = new String('0', _precision);
gridValue = String.Format("{0}{1} {2} {3}", zone, new String(letters), x.ToString(f), y.ToString(f));
}
public override string ToGrid(Coordinate g)
{
char[] letters = new char[3];
double zoneLat = g.Y < -80 ? -80 : g.Y > 72 ? 72 : g.Y;
letters[0] = _zoneLetters[Convert.ToInt32(Math.Floor((zoneLat + 80) / 8))];
double n = g.X >= 180 ? g.X - 180 : g.X + 180;
int zone = Convert.ToInt32(Math.Floor(n / 6)) + 1;
Hemisphere hemisphere = g.Y >= 0 ? Hemisphere.North : Hemisphere.South;
UTM utm = new UTM(zone, hemisphere);
Coordinate p = utm.ToProjected(g);
double x = p.X;
double y = p.Y;
double divisor = Math.Pow(10, 5 - _precision);
x = Math.Round(x / divisor) * divisor;
y = Math.Round(y / divisor) * divisor;
int setNumber = (zone - 1) % 6;
letters[1] = _columnLetters[(setNumber % 3) * 8 + Convert.ToInt32(Math.Floor(x / 100000)) - 1];
int rowOffset = setNumber % 2 == 1 ? 5 : 0;
y %= 2000000;
letters[2] = _rowLetters[(Convert.ToInt32(Math.Floor(y / 100000)) + rowOffset) % _rowLetters.Length];
x = (x % 100000) / divisor;
y = (y % 100000) / divisor;
string f = new String('0', _precision);
return(String.Format("{0}{1} {2} {3}", zone, new String(letters), x.ToString(f), y.ToString(f)));
}
public override void ToGrid(double lon, double lat, out string gridValue)
{
char[] letters = new char[3];
double zoneLat = lat < -80 ? -80 : lat > 72 ? 72 : lat;
letters[0] = _zoneLetters[Convert.ToInt32(Math.Floor((zoneLat + 80) / 8))];
double n = lon >= 180 ? lon - 180 : lon + 180;
int zone = Convert.ToInt32(Math.Floor(n / 6)) + 1;
Hemisphere hemisphere = lat >= 0 ? Hemisphere.North : Hemisphere.South;
UTM utm = new UTM(zone, hemisphere);
double x;
double y;
utm.ToProjected(lon, lat, out x, out y);
double divisor = Math.Pow(10, 5 - _precision);
x = Math.Round(x / divisor) * divisor;
y = Math.Round(y / divisor) * divisor;
int setNumber = (zone - 1) % 6;
letters[1] = _columnLetters[(setNumber % 3) * 8 + Convert.ToInt32(Math.Floor(x / 100000)) - 1];
int rowOffset = setNumber % 2 == 1 ? 5 : 0;
y %= 2000000;
letters[2] = _rowLetters[(Convert.ToInt32(Math.Floor(y / 100000)) + rowOffset) % _rowLetters.Length];
x = (x % 100000) / divisor;
y = (y % 100000) / divisor;
string f = new String('0', _precision);
gridValue = String.Format("{0}{1} {2} {3}", zone, new String(letters), x.ToString(f), y.ToString(f));
}
