public void CoordinateProjectionFactoryFromMethodNameTest()
{
CoordinateProjection expected = CoordinateProjectionFactory.BritishNationalGrid(Ellipsoids.WGS1984);
Dictionary <CoordinateOperationParameter, Object> parameters = new Dictionary <CoordinateOperationParameter, Object>();
parameters.Add(CoordinateOperationParameters.LatitudeOfNaturalOrigin, Angle.FromDegree(49));
parameters.Add(CoordinateOperationParameters.LongitudeOfNaturalOrigin, Angle.FromDegree(-2));
parameters.Add(CoordinateOperationParameters.FalseEasting, Length.Convert(Length.FromMetre(400000), Ellipsoids.WGS1984.SemiMajorAxis.Unit));
parameters.Add(CoordinateOperationParameters.FalseNorthing, Length.Convert(Length.FromMetre(-100000), Ellipsoids.WGS1984.SemiMajorAxis.Unit));
parameters.Add(CoordinateOperationParameters.ScaleFactorAtNaturalOrigin, 0.9996012717);
CoordinateProjection actual = CoordinateProjectionFactory.FromMethodName(expected.Method.Name, parameters, Ellipsoids.WGS1984, AreasOfUse.GreatBritainMan).FirstOrDefault();
Assert.AreEqual(expected.Method, actual.Method);
}
/// <summary>
/// Computes the coordinate projection.
/// </summary>
/// <param name="ellipsoid">The ellipsoid.</param>
/// <returns>The coordinate projection.</returns>
/// <exception cref="System.IO.InvalidDataException">Projection code is invalid.</exception>
private CoordinateProjection ComputeProjection(Ellipsoid ellipsoid)
{
Int32 code = Convert.ToInt32(_currentGeoKeys[GeoKey.Projection]);
if (code >= 10000 && code <= 19999)
{
return(CoordinateProjectionFactory.FromIdentifier("EPSG::" + code, ellipsoid).FirstOrDefault());
}
if (code == Int16.MaxValue)
{
CoordinateOperationMethod method = ComputeCoordinateOperationMethod();
Dictionary <CoordinateOperationParameter, Object> parameters = ComputeCoordinateOperationParameters();
return(CoordinateProjectionFactory.FromMethod(method, parameters, ellipsoid, AreasOfUse.World));
}
throw new InvalidDataException("Projection code is invalid.");
}
