SuperMap.Connector.Control.WPF.MapControl.GetNowViewBounds C# (CSharp) Метод

GetNowViewBounds() приватный Метод

获取当前地图可视范围。
private GetNowViewBounds ( ) : Rectangle2D
Результат Rectangle2D
        private Rectangle2D GetNowViewBounds()
        {
            if (gMapControl1.ViewArea == null)
            {
                return null;
            }

            Point2D lefttop = Helper.PointLatLng2Point2D(gMapControl1.ViewArea.LocationTopLeft);
            Point2D rightBottom = Helper.PointLatLng2Point2D(gMapControl1.ViewArea.LocationRightBottom);
            Rectangle2D rec = new Rectangle2D(lefttop, rightBottom);
            return rec;
        }