This document is archived and information here might be outdated.  Recommended version.


IGeographicCoordinateSystem.PrimeMeridian Property (ArcObjects .NET 10.4 SDK)
ArcObjects Library Reference (Geometry)  

IGeographicCoordinateSystem.PrimeMeridian Property

The prime meridian of this geographic coordinate system.

[Visual Basic .NET]
Public ReadOnly Property PrimeMeridian As IPrimeMeridian
[C#]
public IPrimeMeridian PrimeMeridian {get;}
[C++]
HRESULT get_PrimeMeridian(
  IPrimeMeridian** prime
);
[C++]

Parameters prime [out, retval]
prime is a parameter of type IPrimeMeridian

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.
[C#]

    private void PrintPrimeMeridianFromGCS()
    {
        // use activator class with SpatialReferenceEnvironment singleton
        Type factoryType=Type.GetTypeFromProgID("esriGeometry.SpatialReferenceEnvironment");
        System.Object obj=Activator.CreateInstance(factoryType);
        ISpatialReferenceFactory spatialReferenceFactory=obj as ISpatialReferenceFactory;

        IGeographicCoordinateSystem geographicCoordinateSystem=spatialReferenceFactory.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_WGS1984);
        IPrimeMeridian primeMeridian=geographicCoordinateSystem.PrimeMeridian;

        System.Windows.Forms.MessageBox.Show(primeMeridian.Name);
    }

See Also

IGeographicCoordinateSystem Interface