/*
* string Name { get; }
* AngularUnit AngularUnit { get; }
* PrimeMeridian PrimeMeridian { get; }
* Datum Datum { get; }
* string proj4 = "+datum={0} +a={1} +b={2} +f={3} +nodefs";
*/
private IGeographicCoordSystem GetGeoCoordSystemByProj4(Dictionary <string, string> nameValuePairs)
{
Datum datum = new Datum();
string name = "wgs84";
if (nameValuePairs.ContainsKey("datum"))
{
name = GetGeocoordsystemNameByProj4Name(nameValuePairs["datum"]);
datum = GetDatum(nameValuePairs["datum"], nameValuePairs);
datum.Name = GetDatumNameByProj4DatumName(nameValuePairs["datum"]);
datum.Spheroid.Name = GetSpheroidNameByProj4Name(nameValuePairs["datum"]);// nameValuePairs["datum"].ToUpper();
}
string unitname = "Degree";
if (nameValuePairs.ContainsKey("units"))
{
unitname = nameValuePairs["units"];
}
AngularUnit unit = new AngularUnit(unitname, 0.0174532925199433d);
string primeName = "Greenwich";
PrimeMeridian primeMeridian = new PrimeMeridian(primeName, 0d);
return(new GeographicCoordSystem(name, unit, primeMeridian, datum));
}
public GeographicCoordSystem(string name, AngularUnit angularUnit, PrimeMeridian primeMeridian, Datum datum)
{
_name = name;
_angularUnit = angularUnit;
_primeMeridian = primeMeridian;
_datum = datum;
_oracleSpatialSRID = int.MinValue;
}
public GeographicCoordSystem(WktItem wktItem)
{
_name = wktItem.Value.Split(',')[0].Replace("\"", string.Empty);
_angularUnit = new AngularUnit(wktItem.GetWktItem("UNIT"));
_primeMeridian = new PrimeMeridian(wktItem.GetWktItem("PRIMEM"));
_datum = new Datum(wktItem.GetWktItem("DATUM"));
_oracleSpatialSRID = int.MinValue;
}
public bool IsSame(PrimeMeridian pm)
{
return(pm != null && Math.Abs(pm.Value - Value) < MINI_DOUBLE);
}
