Envelope

 

 

IEnvelope Interface

Provides access to methods and properties of envelopes. Note: the IEnvelope interface has been superseded byIEnvelope2. Please consider using the more recent version.

Product Availability

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

Description

Envelopes are the rectangular window that contain a specific element.  All Geometry objects have an envelope defined by the XMin, XMax, YMin, and YMax of the object.  Envelopes can also serve as the viewing area for a particular view screen or data frame.

Members

Description

 

 

CenterAt

Moves this envelope so it is centered at p.

 

DefineFromPoints

Defines the envelope to cover all the points.

 

Depth

The depth of the envelope.

 

Dimension

The topological dimension of this geometry.

 

Envelope

Creates a copy of this geometry's envelope and returns it.

 

Expand

Moves the X and Y coordinates of the sides toward or away from each other.

 

ExpandM

Moves the measure of the sides toward or away from each other.

 

ExpandZ

Moves the Z attribute of the sides toward or away from each other.

 

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 This method is obsolete.

 

Height

The height of the envelope.

 

Intersect

Adjusts to include only the area also included by inEnvelope.

 

IsEmpty

Indicates whether this geometry contains any points.

 

LowerLeft

The lower left corner.

 

LowerRight

The lower right corner.

 

MMax

The maximum measure value in the area of the envelope.

 

MMin

The minimum measure value in the area of the envelope.

 

Offset

Moves the sides x units horizontally and y units vertically.

 

OffsetM

Moves the sides m units.

 

OffsetZ

Moves the sides z units.

 

Project

Projects this geometry into a new spatial reference.

 

PutCoords

Constructs an envelope from the coordinate values of lower, left and upper, right corners.

 

QueryCoords

Returns the coordinates of lower, left and upper, right corners.

 

QueryEnvelope

Copies this geometry's envelope properties into the specified envelope.

 

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.

 

Union

Adjusts to overlap inEnvelope.

 

UpperLeft

The upper left corner.

 

UpperRight

The upper right corner.

 

Width

The width of the envelope.

 

XMax

The position of the right side.

 

XMin

The position of the left side.

 

YMax

The position of the top.

 

YMin

The position of the bottom.

 

ZMax

The maximum Z value in the area of the envelope.

 

ZMin

The minimum Z value in the area of the envelope.

Inherited Interfaces

Interfaces

Description

IGeometry

Provides access to members that describe properties and behavior of all geometric objects.

CoClasses that implement IEnvelope

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.

[C#]

        //The following C# code shows how to create an envelope from coordinates:
        IEnvelope env = new EnvelopeClass() as IEnvelope;

        env.PutCoords(-10, -5, 10, 5);

 

posted @ 2016-11-30 23:28  wenglabs  阅读(767)  评论(0编辑  收藏  举报