ArcGis 创建含孔洞面要素AO C#

             IGeometryCollection geometryCollection = new PolygonClass();
             IPointCollection pointCollection_ExteriorRing = new RingClass();
             pointCollection_ExteriorRing.AddPoint(upperLfetPoint);
             pointCollection_ExteriorRing.AddPoint(upperRightPoint);
             pointCollection_ExteriorRing.AddPoint(lowerRightPoint);
             pointCollection_ExteriorRing.AddPoint(lowerLeftPoint);
             IRing ring_Exterior = pointCollection_ExteriorRing as IRing;
             ring_Exterior.Close();
             geometryCollection.AddGeometry(ring_Exterior as IGeometry);

             IPointCollection pointCollection_InteriorRing = new RingClass();
             pointCollection_InteriorRing.AddPoint(quadriCorners.UpperLeft);
             pointCollection_InteriorRing.AddPoint(quadriCorners.UpperRight);
             pointCollection_InteriorRing.AddPoint(quadriCorners.LowerRight);
             pointCollection_InteriorRing.AddPoint(quadriCorners.LowerLeft);
             IRing ring_Interior = pointCollection_InteriorRing as IRing;
             ring_Interior.Close();
             geometryCollection.AddGeometry(ring_Interior as IGeometry);

             IPolygon polygon = geometryCollection as IPolygon;
             IFeature featureBack = featureClass.CreateFeature();
             featureBack.Shape = polygon;
             featureBack.Store();