/// <summary>
/// Takes a 6-character string gridsquare and processes it using LookupTablesHelper and GridsquareHelper to return a DDMCoordinate object.
/// If solution cannot be found a null DDMCoordinate type is returned.
/// </summary>
/// <param name="gridsquare"></param>
/// <returns></returns>
public DDMCoordinate ConvertGridsquareToDDM(string gridsquare)
{
DDMCoordinate DdmResult = null;
if (!string.IsNullOrEmpty(gridsquare) && !string.IsNullOrWhiteSpace(gridsquare))
{
if (LookuptablesHelper.GenerateTableLookups() && GridsquareHelper.ValidateGridsquareInput(gridsquare, out string validGridsquare))
{
decimal tempLatDegrees = ConversionHelper.GetLatDegrees(LookuptablesHelper, validGridsquare, out short latDirection);
decimal latDegreesWithRemainder = ConversionHelper.AddLatDegreesRemainder(tempLatDegrees, latDirection, validGridsquare);
decimal DDMlatMinutes = ConversionHelper.GetLatMinutes(
LookuptablesHelper, latDegreesWithRemainder, latDirection, validGridsquare, out decimal adjustedLatDegrees);
decimal tempLonDegrees = ConversionHelper.GetLonDegrees(LookuptablesHelper, validGridsquare, out short lonDirection);
decimal lonDegreesWithRemainder = ConversionHelper.AddLonDegreesRemainder(tempLonDegrees, lonDirection, validGridsquare);
decimal DDMlonMinutes = ConversionHelper.GetLonMinutes(
LookuptablesHelper, lonDegreesWithRemainder, lonDirection, validGridsquare, out decimal adjustedLonDegrees);
DdmResult = new DDMCoordinate(
adjustedLatDegrees, DDMlatMinutes,
adjustedLonDegrees, DDMlonMinutes);
}
}
return(DdmResult);
}
public void AddLonDegrees_West_Pass()
{
decimal startingLat = -120.0m;
int latDir = -1;
string grid = "CN87ut";
decimal expectedResult = -122.0m;
decimal actualResult = ConversionHelper.AddLonDegreesRemainder(startingLat, latDir, grid);
Assert.AreEqual(expectedResult, actualResult);
}