public UPSCoordinates convertToUPS(MGRSorUSNGCoordinates mgrsorUSNGCoordinates)
{
/*
* The function convertToUPS converts an MGRS coordinate string
* to UPS (hemisphere, easting, and northing) coordinates, according
* to the current ellipsoid parameters. If any errors occur, an
* exception is thrown with a description of the error.
*
* MGRSString : MGRS coordinate string (input)
* hemisphere : Hemisphere either 'N' or 'S' (output)
* easting : Easting/X in meters (output)
* northing : Northing/Y in meters (output)
*/
long zone = 0;
long[] letters = new long[3];
long precision = 0;
double mgrs_easting = 0.0;
double mgrs_northing = 0.0;
UPSCoordinates upsCoordinates = new UPSCoordinates();
breakMGRSString(mgrsorUSNGCoordinates.MGRSString, ref zone, ref letters, ref mgrs_easting, ref mgrs_northing, ref precision);
if (zone == 0)
{
upsCoordinates = toUPS(letters, mgrs_easting, mgrs_northing);
}
else
{
upsCoordinates = ups.convertFromGeodetic(utm.convertToGeodetic(toUTM(zone, letters, mgrs_easting, mgrs_northing, precision)));
}
return upsCoordinates;
}
public GeodeticCoordinates convertToGeodetic(MGRSorUSNGCoordinates mgrsorUSNGCoordinates)
{
/*
* The function convertToGeodetic converts an MGRS coordinate string
* to Geodetic (latitude and longitude) coordinates
* according to the current ellipsoid parameters. If any errors occur,
* an exception is thrown with a description of the error.
*
* MGRS : MGRS coordinate string (input)
* latitude : Latitude in radians (output)
* longitude : Longitude in radians (output)
*
*/
long zone = new long();
long[] letters = new long[MGRS_LETTERS];
double mgrs_easting = new double();
double mgrs_northing = new double();
long precision = new long();
GeodeticCoordinates geodeticCoordinates;
breakMGRSString(mgrsorUSNGCoordinates.MGRSString, ref zone, ref letters, ref mgrs_easting, ref mgrs_northing, ref precision);
if (zone > 0)
{
geodeticCoordinates = utm.convertToGeodetic(toUTM(zone, letters, mgrs_easting, mgrs_northing, precision));
}
else
{
geodeticCoordinates = ups.convertToGeodetic(toUPS(letters, mgrs_easting, mgrs_northing));
}
return geodeticCoordinates;
}
public MGRSorUSNGCoordinates convertFromUPS(ref UPSCoordinates upsCoordinates, long precision)
{
/*
* The function convertFromUPS converts UPS (hemisphere, easting,
* and northing) coordinates to an MGRS coordinate string according to
* the current ellipsoid parameters. If any errors occur, an
* exception is thrown with a description of the error.
*
* hemisphere : Hemisphere either 'N' or 'S' (input)
* easting : Easting/X in meters (input)
* northing : Northing/Y in meters (input)
* precision : Precision level of MGRS string (input)
* MGRSString : MGRS coordinate string (output)
*/
string errorStatus = "";
char hemisphere = upsCoordinates.getHemisphere();
double easting = upsCoordinates.getEasting();
double northing = upsCoordinates.getNorthing();
if ((hemisphere != 'N') && (hemisphere != 'S'))
{
errorStatus += ErrorMessages.hemisphere;
}
if ((easting < MIN_EAST_NORTH) || (easting > MAX_EAST_NORTH))
{
errorStatus += ErrorMessages.easting;
}
if ((northing < MIN_EAST_NORTH) || (northing > MAX_EAST_NORTH))
{
errorStatus += ErrorMessages.northing;
}
if ((precision < 0) || (precision > MAX_PRECISION))
{
errorStatus += ErrorMessages.precision;
}
if (errorStatus.Length > 0)
{
throw new ArgumentException(errorStatus);
}
GeodeticCoordinates geodeticCoordinates = ups.convertToGeodetic(upsCoordinates);
//If the latitude is within the valid mgrs polar range [-90, -80) or [84, 90],
//convert to mgrs using the ups path, otherwise convert to mgrs using the utm path
MGRSorUSNGCoordinates mgrsorUSNGCoordinates = new MGRSorUSNGCoordinates();
double latitude = geodeticCoordinates.latitude;
if ((latitude < (MIN_MGRS_NON_POLAR_LAT + EPSILON)) || (latitude >= (MAX_MGRS_NON_POLAR_LAT - EPSILON)))
{
mgrsorUSNGCoordinates = fromUPS(upsCoordinates, precision);
}
else
{
mgrsorUSNGCoordinates = fromUTM(utm.convertFromGeodetic(geodeticCoordinates), geodeticCoordinates.longitude, latitude, precision);
}
return mgrsorUSNGCoordinates;
}
/// <summary>
/// The function convertFromGeodetic converts Geodetic (latitude and
/// longitude) coordinates to an MGRS coordinate string, according to the
/// current ellipsoid parameters. If any errors occur, an exception
/// is thrown with a description of the error.
/// </summary>
/// <param name="geodeticCoordinates">Geodetic Coordinates</param>
/// <param name="precision">Precision level of MGRS string (0 to 5)</param>
/// <returns>MGRS Coordinates</returns>
public MGRSorUSNGCoordinates convertFromGeodetic(GeodeticCoordinates geodeticCoordinates, long precision)
{
MGRSorUSNGCoordinates mgrsorUSNGCoordinates = new MGRSorUSNGCoordinates();
string errorStatus = "";
double latitude = geodeticCoordinates.latitude;
double longitude = geodeticCoordinates.longitude;
if ((latitude < -PI_OVER_2) || (latitude > PI_OVER_2))
{ /* latitude out of range */
errorStatus = ErrorMessages.latitude;
}
if ((longitude < -Math.PI) || (longitude > (2 * Math.PI)))
{ /* longitude out of range */
errorStatus = ErrorMessages.longitude;
}
if ((precision < 0) || (precision > MAX_PRECISION))
{
errorStatus = ErrorMessages.precision;
}
if (errorStatus.Length > 0)
{
throw new ArgumentException(errorStatus);
}
// If the latitude is within the valid mgrs non polar range [-80, 84),
// convert to mgrs using the utm path, otherwise convert to mgrs using the ups path
if ((latitude >= MIN_MGRS_NON_POLAR_LAT) && (latitude < MAX_MGRS_NON_POLAR_LAT))
{
mgrsorUSNGCoordinates = fromUTM(utm.convertFromGeodetic(geodeticCoordinates), longitude, latitude, precision);
}
else
{
mgrsorUSNGCoordinates = fromUPS(ups.convertFromGeodetic(geodeticCoordinates), precision);
}
return mgrsorUSNGCoordinates;
}
public void setGrid(string Grid)
{
this.Grid = Grid;
this.ValidateCoordinates();
this.mgrsCoordinates = new MGRSorUSNGCoordinates(CoordinateType.Enum.militaryGridReferenceSystem, this.Grid);
}
public MilitaryGridReferenceSystem(MGRSorUSNGCoordinates mgrsCoordinates)
{
this.mgrsCoordinates = mgrsCoordinates;
this.Grid = this.mgrsCoordinates.MGRSString;
this.ValidateCoordinates();
}
