/// <summary>
/// Returns the inverse of this projection.
/// </summary>
/// <returns>IMathTransform that is the reverse of the current projection.</returns>
public override IMathTransform Inverse()
{
if (_inverse == null)
_inverse = new Mercator(this._Parameters, !_isInverse);
return _inverse;
}
private static IMathTransform CreateCoordinateOperation(IProjection projection, IEllipsoid ellipsoid, ILinearUnit unit)
{
List<ProjectionParameter> parameterList = new List<ProjectionParameter>(projection.NumParameters);
for (int i = 0; i < projection.NumParameters; i++)
parameterList.Add(projection.GetParameter(i));
parameterList.Add(new ProjectionParameter("semi_major", ellipsoid.SemiMajorAxis));
parameterList.Add(new ProjectionParameter("semi_minor", ellipsoid.SemiMinorAxis));
parameterList.Add(new ProjectionParameter("unit", unit.MetersPerUnit));
IMathTransform transform = null;
switch (projection.ClassName.ToLower(CultureInfo.InvariantCulture).Replace(' ', '_'))
{
case "mercator":
case "mercator_1sp":
case "mercator_2sp":
//1SP
transform = new Mercator(parameterList);
break;
case "transverse_mercator":
transform = new TransverseMercator(parameterList);
break;
case "albers":
case "albers_conic_equal_area":
transform = new AlbersProjection(parameterList);
break;
case "krovak":
transform = new KrovakProjection(parameterList);
break;
case "lambert_conformal_conic":
case "lambert_conformal_conic_2sp":
case "lambert_conic_conformal_(2sp)":
transform = new LambertConformalConic2SP(parameterList);
break;
default:
throw new NotSupportedException(String.Format("Projection {0} is not supported.", projection.ClassName));
}
return transform;
}