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ISpatialReferenceFactory.CreatePredefinedPrimeMeridians Method (ArcObjects .NET 10.4 SDK)
ArcObjects Library Reference (Geometry)  

ISpatialReferenceFactory.CreatePredefinedPrimeMeridians Method

Creates a list of predefined prime meridians.

[Visual Basic .NET]
Public Function CreatePredefinedPrimeMeridians ( _
) As ISet
[C#]
public ISet CreatePredefinedPrimeMeridians (
);
[C++]
HRESULT CreatePredefinedPrimeMeridians(
  ISet** primeMeridians
);
[C++]

Parameters primeMeridians [out, retval]
primeMeridians is a parameter of type ISet

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Description

Returns a list of all predefined prime meridians. The list has two columns: the factory code and the name.

[C#]

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

        ISet primeMeridiansSet=spatialReferenceFactory.CreatePredefinedPrimeMeridians();
        System.Windows.Forms.MessageBox.Show("Number of projections=" + primeMeridiansSet.Count);
        for (int i=0; i < primeMeridiansSet.Count; i++)
        {
            IPrimeMeridian primeMeridian=primeMeridiansSet.Next() as IPrimeMeridian;
            System.Windows.Forms.MessageBox.Show(primeMeridian.Name);
        }
    }

See Also

ISpatialReferenceFactory Interface