1 IGeometryCollection geometryCollection = new PolygonClass(); 2 IPointCollection pointCollection_ExteriorRing = new RingClass(); 3 pointCollection_ExteriorRing.AddPoint(upperLfetPoint); 4 pointCollection_ExteriorRing.AddPoint(upperRightPoint); 5 pointCollection_ExteriorRing.AddPoint(lowerRightPoint); 6 pointCollection_ExteriorRing.AddPoint(lowerLeftPoint); 7 IRing ring_Exterior = pointCollection_ExteriorRing as IRing; 8 ring_Exterior.Close(); 9 geometryCollection.AddGeometry(ring_Exterior as IGeometry); 10 11 IPointCollection pointCollection_InteriorRing = new RingClass(); 12 pointCollection_InteriorRing.AddPoint(quadriCorners.UpperLeft); 13 pointCollection_InteriorRing.AddPoint(quadriCorners.UpperRight); 14 pointCollection_InteriorRing.AddPoint(quadriCorners.LowerRight); 15 pointCollection_InteriorRing.AddPoint(quadriCorners.LowerLeft); 16 IRing ring_Interior = pointCollection_InteriorRing as IRing; 17 ring_Interior.Close(); 18 geometryCollection.AddGeometry(ring_Interior as IGeometry); 19 20 21 IPolygon polygon = geometryCollection as IPolygon; 22 IFeature featureBack = featureClass.CreateFeature(); 23 featureBack.Shape = polygon; 24 featureBack.Store();