ArcObjects Library Reference (Geometry)

IGeographicCoordinateSystem2 Interface

Provides access to members that control additional properties and methods for all geographic coordinate systems.

Product Availability

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

When To Use

Use IGeographicCoordinateSystem2 when you need to work with map projection horizons or transform between two geographic coordinate systems.

Members

		Description
	Abbreviation	The abbreviated name of this spatial reference component.
	Alias	The alias of this spatial reference component.
	AngularConversionFactor	A factor to convert angular units from current GCS to destination GCS.
	Changed	Notify this object that some of its parts have changed (parameter values, z unit, etc.).
	CoordinateUnit	The angular unit of this geographic coordinate system.
	Datum	The horizontal datum of this geographic coordinate system.
	ExtentHint	Calculates a 360 degree longitude range from information in the specified envelope and the domain extent of the GCS.
	FactoryCode	The factory code (WKID) of the spatial reference.
	GetDomain	The XY domain extent.
	GetFalseOriginAndUnits	Get the false origin and units.
	GetGCSParams	Returns the 180 degrees equivalent and horizon delta in proper GCS units.
	GetHorizon	Returns a standard horizon polygon, its envelope and whether it is inclusive or exclusive; the horizon polygon may be 0.
	GetMDomain	The measure domain extent.
	GetMFalseOriginAndUnits	Get the measure false origin and units.
	GetZDomain	The Z domain extent.
	GetZFalseOriginAndUnits	Get the Z false origin and units.
	HasMPrecision	Returns true when m-value precision information has been defined.
	HasXYPrecision	Returns true when (x,y) precision information has been defined.
	HasZPrecision	Returns true when z-value precision information has been defined.
	IsPrecisionEqual	Returns TRUE when the precision information for the two spatial references is the same.
	LeftLongitude	The least (left) longitude bounding a 360 degree range.
	Name	The name of this spatial reference component.
	PrimeMeridian	The prime meridian of this geographic coordinate system.
	Remarks	The comment string of this spatial reference component.
	RightLongitude	The greatest (right) longitude bounding a 360 degree range.
	SetDomain	The XY domain extent.
	SetFalseOriginAndUnits	Set the false origin and units.
	SetMDomain	The measure domain extent.
	SetMFalseOriginAndUnits	Set the measure false origin and units.
	SetZDomain	The Z domain extent.
	SetZFalseOriginAndUnits	Set the Z false origin and units.
	Usage	The usage notes of this geographic coordinate system.
	ZCoordinateUnit	The unit for the Z coordinate.

Inherited Interfaces

Interfaces	Description
IGeographicCoordinateSystem	Provides access to members that control access to all properties of geographic coordinate systems.
ISpatialReference	Provides access to members that control a SpatialReference.
ISpatialReferenceInfo	Provides access to members that control the properties common to all components of a spatial reference system.

CoClasses that implement IGeographicCoordinateSystem2

CoClasses and Classes	Description
GeographicCoordinateSystem	Creates a geographic coordinate system.

.NET Related Topics

Creating a custom geotransformation