Provides access to members that extend the IGeometry interface with a more sophisticated projection method.
Product Availability 
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.
Members 
 
All 
Properties 
Methods 
Inherited 
Non-inherited 
  
Description  
CentroidEx The center of gravity (centroid). 
 
Changed Indicates if a geometry has been changed (edited, projected, etc). 
 
Dimension The topological dimension of this geometry. 
 
Envelope Creates a copy of this geometry's envelope and returns it. 
 
GeometryType The type of this geometry. 
 
GeoNormalize Shifts longitudes, if need be, into a continuous range of 360 degrees. 
 
GeoNormalizeFromLongitude Normalizes longitudes into a continuous range containing the longitude. This method is obsolete. 
 
IsEmpty Indicates whether this geometry contains any points. 
 
Project Projects this geometry into a new spatial reference. 
 
Project5 Same as Project, but with additional parameter projectionHint. 
 
ProjectEx Projects a geometry, optionally applies a GeoTransformation, and optionally densifies the geometry. 
 
ProjectEx5 Same as ProjectEx, but with additional parameter projectionHint. 
 
QueryEnvelope Copies this geometry's envelope properties into the specified envelope. 
 
QueryWKSEnvelope Defines the specified wksenvelope to be the current extent of this geometry in the x-y plane. 
 
SetEmpty Removes all points from this geometry. 
 
SnapToSpatialReference Moves points of this geometry so that they can be represented in the precision of the geometry's associated spatial reference system. 
 
SpatialReference The spatial reference associated with this geometry. 
 
 
Inherited Interfaces 
Interfaces 
Description 
 
IGeometry4 Provides access to methods that indicate if a geometry has been changed (edited, projected, etc). 
 
IGeometry3 Provides rapid access to a geometry's extent in the x-y plane. 
 
IGeometry2 Provides access to members that extend the IGeometry interface with a more sophisticated projection method. 
 
IGeometry Provides access to members that describe properties and behavior of all geometric objects. 
 
 
CoClasses that implement IGeometry5 
CoClasses and Classes 
Description 
 
Envelope A rectangle with sides parallel to a coordinate system defining the extent of another geometry; optionally has min and max measure, height and ID attributes. 
 
GeometryBag An ordered collection of objects that support the IGeometry interface. 
 
MultiPatch A collection of surface patches. 
 
Multipoint An ordered collection of points; optionally has measure, height and ID attributes. 
 
Point A two dimensional point, optionally with measure, height, and ID attributes. 
 
Polygon A collection of rings ordered by their containment relationship; optionally has measure, height and ID attributes. 
 
Polyline An ordered collection of paths; optionally has measure, height and ID attributes.