ArcStache.VectorCache.CreatePolygonFromEnvelope C# (CSharp) Method

        public IPolygon CreatePolygonFromEnvelope(IEnvelope envelope)
        {
            // Build a polygon from a sequence of points.
            IGeometryBridge2 geometryBridge2 = new GeometryEnvironmentClass();
            IPointCollection4 pointCollection4 = new PolygonClass();

            // Define the point collection; i.e. polygon verticies
            List<WKSPoint> wksPoints = new List<WKSPoint>();
            wksPoints.Add(new WKSPoint() { X = envelope.LowerLeft.X, Y = envelope.LowerLeft.Y });
            wksPoints.Add(new WKSPoint() { X = envelope.UpperLeft.X, Y = envelope.UpperLeft.Y });
            wksPoints.Add(new WKSPoint() { X = envelope.UpperRight.X, Y = envelope.UpperRight.Y });
            wksPoints.Add(new WKSPoint() { X = envelope.LowerRight.X, Y = envelope.LowerRight.Y });

            geometryBridge2.SetWKSPoints(pointCollection4, wksPoints.ToArray());

            // Cast point collection to IPolygon
            IPolygon polygon = pointCollection4 as IPolygon;
            polygon.SpatialReference = envelope.SpatialReference;
            polygon.SimplifyPreserveFromTo();
            return polygon;
        }