public void Test_ThirdGridSquareCharacter()
{
decimal remainingLonDegrees = 3m;
short lonDirection = 1;
decimal expectedOut = 60m;
string expectedResult = "1";
string actualResult = GridSquareHelper.GetThirdGridsquareCharacter(remainingLonDegrees, lonDirection, out decimal actualOut);
Assert.AreEqual(expectedOut, actualOut);
Assert.AreEqual(expectedResult, actualResult);
}
/// <summary>
/// Takes a DDMCoordinate objects and processes it using ConversionHelper an GridSquareHelper to return a Gridsquare string.
/// If solution cannot be found a string with encoded error condition is returned and should be handled by the caller.
/// </summary>
/// <param name="ddmCoordinates"></param>
/// <returns></returns>
public string ConvertDDMtoGridsquare(DDMCoordinate ddmCoordinates)
{
if (ddmCoordinates == null)
{
return("BadInp");
}
if (false == LookuptablesHelper.GenerateTableLookups())
{
return("NoTbls");
}
var GridsquareResult = new StringBuilder();
decimal DDMlatDegrees = ddmCoordinates.GetShortDegreesLat();
decimal DDMlonDegrees = ddmCoordinates.GetShortDegreesLon();
decimal DDMlatMinutes = ddmCoordinates.MinutesLattitude;
decimal DDMlonMinutes = ddmCoordinates.MinutesLongitude;
short LatDirection = ConversionHelper.ExtractPolarityNS(ddmCoordinates.ToString());
short LonDirection = ConversionHelper.ExtractPolarityEW(ddmCoordinates.ToString());
GridsquareResult.Append(GridsquareHelper.GetFirstGridsquareCharacter(DDMlonDegrees, LonDirection, out decimal remainderLon));
GridsquareResult.Append(GridsquareHelper.GetSecondGridsquareCharacter(DDMlatDegrees, LatDirection, out decimal remainderLat));
GridsquareResult.Append(GridSquareHelper.GetThirdGridsquareCharacter(remainderLon, LonDirection, out decimal minsRemainderLon));
GridsquareResult.Append(GridSquareHelper.GetFourthGridsquareCharacter(remainderLat, LatDirection));
decimal ddmLonMinsWithRemainder = LonDirection * (minsRemainderLon + DDMlonMinutes);
decimal nearestEvenMultipleLon = ConversionHelper.GetNearestEvenMultiple(ddmLonMinsWithRemainder, 2);
GridsquareResult.Append(GridsquareHelper.GetFifthGridsquareCharacter(LonDirection, nearestEvenMultipleLon));
decimal ddmLatMinsWithRemainder = LatDirection * DDMlatMinutes;
decimal nearestEvenMultipleLat = ConversionHelper.GetNearestEvenMultiple(ddmLatMinsWithRemainder, 1);
GridsquareResult.Append(GridsquareHelper.GetSixthGridsquareCharacter(LatDirection, nearestEvenMultipleLat));
if (GridsquareResult.Length != 6)
{
return("NoCalc");
}
return(GridsquareResult.ToString());
}
