IPrimeMeridian Interface

Provides access to members that control the properties of all prime meridians.

Members

Name Description
Read-only property Abbreviation The abbreviated name of this spatial reference component.
Read-only property Alias The alias of this spatial reference component.
Read-only property FactoryCode The factory code (WKID) of the spatial reference.
Read-only property Longitude The longitude value of this prime meridian.
Read-only property Name The name of this spatial reference component.
Read-only property Remarks The comment string of this spatial reference component.

IPrimeMeridian.Longitude Property

The longitude value of this prime meridian.

Public ReadOnly Property Longitude As Double
public double Longitude {get;}

Description

Returns the longitude value of a prime meridian. The longitude value is defined in degrees relative to Greenwich.

private void GetLongitude()

    {

        // use activator class with SpatialReferenceEnvironment singleton

        Type factoryType = Type.GetTypeFromProgID("esriGeometry.SpatialReferenceEnvironment");

        System.Object obj = Activator.CreateInstance(factoryType);

        ISpatialReferenceFactory3 spatialReferenceFactory = obj as ISpatialReferenceFactory3;

        IPrimeMeridian primeMeridian = spatialReferenceFactory.CreatePrimeMeridian((int)esriSRPrimeMType.esriSRPrimeM_Greenwich);

        System.Windows.Forms.MessageBox.Show(primeMeridian.Longitude.ToString());

    }

Inherited Interfaces

Interfaces Description
ISpatialReferenceInfo Provides access to members that control the properties common to all components of a spatial reference system.

Classes that implement IPrimeMeridian

Classes Description
PrimeMeridian Creates a prime meridian.

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