private void ConvertCoordinates()
{
Proj4Projection proj4 = new Proj4Projection();
proj4.InternalProjectionParametersString = Proj4Projection.GetEpsgParametersString(4326);
proj4.ExternalProjectionParametersString = GisEditor.ActiveMap.DisplayProjectionParameters;
double x = 0;
double y = 0;
switch (SelectedCoordinateFormat)
{
case CoordinateType.DegreesMinutes:
case CoordinateType.DegreesMinutesSeconds:
if (String.IsNullOrEmpty(LatitudeSeconds))
{
LatitudeSeconds = "0";
}
if (String.IsNullOrEmpty(LongitudeSeconds))
{
LongitudeSeconds = "0";
}
double yDegrees, yMinutes, xDegrees, xMinutes, ySeconds, xSeconds;
if (double.TryParse(LatitudeDegrees, out yDegrees) && double.TryParse(LatitudeMinutes, out yMinutes) &&
double.TryParse(LatitudeSeconds, out ySeconds) && double.TryParse(LongitudeDegrees, out xDegrees) &&
double.TryParse(LongitudeMinutes, out xMinutes) && double.TryParse(LongitudeSeconds, out xSeconds)
)
{
double actualXMinutes = xMinutes + (xDegrees - (int)xDegrees) * 60;
double actualXSeconds = xSeconds + (actualXMinutes - (int)actualXMinutes) * 60;
double actualYMinutes = yMinutes + (yDegrees - (int)yDegrees) * 60;
double actualYSeconds = ySeconds + (actualYMinutes - (int)actualYMinutes) * 60;
x = DecimalDegreesHelper.GetDecimalDegreeFromDegreesMinutesSeconds((int)xDegrees, (int)actualXMinutes, actualXSeconds);
y = DecimalDegreesHelper.GetDecimalDegreeFromDegreesMinutesSeconds((int)yDegrees, (int)actualYMinutes, actualYSeconds);
x = LongitudeType == "E" ? x : -x;
y = LatitudeType == "N" ? y : -y;
}
else
{
throw new Exception(errorMessage);
}
break;
case CoordinateType.XY:
case CoordinateType.DecimalDegrees:
default:
if (!(double.TryParse(Longitude, out x) && double.TryParse(Latitude, out y)))
{
throw new Exception(errorMessage);
}
break;
}
proj4.Open();
ResultVertex = SelectedCoordinateFormat == CoordinateType.XY ? new Vertex(x, y) : proj4.ConvertToExternalProjection(x, y);
proj4.Close();
}
