GeodesicArea Method—ArcGIS Pro

Gets the geodesic area of a polygon.

Syntax

C#
Visual Basic (Declaration)

double GeodesicArea( 
   Geometry geometry
)

Function GeodesicArea( _
   ByVal geometry As Geometry _
) As Double

Parameters

geometry: The intput geometry.

Return Value

The calculated geodesic area. The area returned is in square meters.

Exceptions

Exception	Description
System.ArgumentNullException	Geometry is null or empty.
System.NotImplementedException	The method is not implemented for GeometryBag or Multipatch.
GeometryObjectException	Geometry is of the wrong type (e.g. a polyline).
System.NotImplementedException	Spatial reference of geometryis an image coordinate system.

Example

var polygon = PolygonBuilder.CreatePolygon(new[]
{
  MapPointBuilder.CreateMapPoint(-10018754.1713946, 10018754.1713946),
  MapPointBuilder.CreateMapPoint(10018754.1713946, 10018754.1713946),
  MapPointBuilder.CreateMapPoint(10018754.1713946, -10018754.1713946),
  MapPointBuilder.CreateMapPoint(-10018754.1713946, -10018754.1713946)
}, SpatialReferences.WebMercator);
var area = GeometryEngine.Instance.GeodesicArea(polygon);

// area is close to 255032810857732.31

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

Reference

IGeometryEngine Interface
IGeometryEngine Members