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.
The Envelope coclass defines a rectangular shape by its minimum and maximum x,y coordinates. Therefore, an Envelope is always orthogonal to its SpatialReference. An Envelope may also define minimum and maximum z- and m-values, depending on the implemented IZAware and IMAware interfaces.
Use the ISupportErrorInfo method InterfaceSupportsErrorInfo to determine if the object supports extended error information. If the object supports extended error info, VC++ developers should use the OLE/COM IErrorInfo interface to access the ErrorInfo object. Visual Basic developers should use the global error object Err to retrieve this extended error information.
| Interfaces | Description |
|---|---|
| IArea | Provides access to members that return properties common to rings and polygons. |
| IClone (esriSystem) | Provides access to members that control cloning of objects. |
| IEnvelope | Provides access to methods and properties of envelopes. |
| IEnvelope2 | Provides access to members that extend the IEnvelope interface. |
| IEnvelopeGEN | OLE Automation compatibility interface for IEnvelope. |
| IGeometry | Provides access to members that describe properties and behavior of all geometric objects. |
| IGeometry2 | Provides access to members that extend the IGeometry interface with a more sophisticated projection method. |
| IHitTest | Provides access to members that locate a part of a geometry closest to a point. |
| IMAware | Indicator interface that identifies geometric objects that can have persistent M values attached to their vertices. |
| IPersist | Defines the single method GetClassID, which is designed to supply the CLSID of an object that can be stored persistently in the system. IPersist is the base interface for three other interfaces: IPersistStorage, IPersistStream, and IPersistFile. |
| IPersistStream (esriSystem) | |
| IProximityOperator | Provides access to members that find the distance between two geometries. Not currently implemented for geometries containing elliptic arcs. |
| IRelationalOperator | Provides access to members that determine if a certain spatial relationship exists between two geometries. |
| ISupportErrorInfo | Indicates whether a specific interface can return Automation error objects. |
| ITransform2D | Provides access to methods for transforming geometries using either specific parameters or arbitrary transformation objects (affine transformations, geographic transformations, etc.). |
| IXMLSerialize (esriSystem) | Provides access to members that XML serialize and deserialize an object to/from XML. |
| IZAware | Indicator interface that identifies geometries that can have persistent Z values attached to their vertices. |