CreateEnvelope(MapPoint,MapPoint,SpatialReference) Method

Convenience method to create a new instance of the Envelope class.

Syntax

C#
Visual Basic (Declaration)

public static Envelope CreateEnvelope( 
   MapPoint minPoint,
   MapPoint maxPoint,
   SpatialReference spatialReference
)

Public Overloads Shared Function CreateEnvelope( _
   ByVal minPoint As MapPoint, _
   ByVal maxPoint As MapPoint, _
   Optional ByVal spatialReference As SpatialReference _
) As Envelope

Parameters

minPoint: Lower left corner of the envelope.
maxPoint: Upper right corner of the envelope.
spatialReference: (Optional) The SpatialReference. The default value is null. If spatialReference is null, then the spatial reference is inherited from minPoint or maxPoint.

Return Value

An Envelope

Exceptions

Exception	Description
NullGeometryObjectException	Indicates the geometry is null or empty.
System.ArgumentNullException	minPoint or maxPoint is null.
System.InvalidOperationException	Incompatible spatial references. The spatial references of the MapPoints do not match.

Remarks

The spatial references of the two points must be the same or null.The envelope is normalized to ensure XMin <= XMax, YMin <= yMax, ZMin <= ZMax and MMin <= MMax. If any of the xy-coordinate values are NaN, then the envelope is set to empty.

Example

// Use a builder convenience method or use a builder constructor.

MapPoint minPt = MapPointBuilder.CreateMapPoint(1.0, 1.0);
MapPoint maxPt = MapPointBuilder.CreateMapPoint(2.0, 2.0);

// Create an envelope
Envelope env = EnvelopeBuilder.CreateEnvelope(minPt, maxPt);

// Builder convenience methods don't need to run on the MCT.
Polygon polygonFromEnv = PolygonBuilder.CreatePolygon(env);

// Builder constructors need to run on the MCT.
ArcGIS.Desktop.Framework.Threading.Tasks.QueuedTask.Run(() =>
{
  using (PolygonBuilder polygonBuilder = new PolygonBuilder(env))
  {
    polygonBuilder.SpatialReference = SpatialReferences.WGS84;
    polygonFromEnv = polygonBuilder.ToGeometry();
  }
});

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

Reference

EnvelopeBuilder Class
EnvelopeBuilder Members
Overload List