SuperMap.Web.Mapping.HeatMapLayer.HeatMapLayer C# (CSharp) Method

        public HeatMapLayer()
        {
            heatPoints = new HeatPointCollection();
            heatPoints.CollectionChanged += new NotifyCollectionChangedEventHandler(heatPoints_CollectionChanged);
            fullBounds = Rectangle2D.Empty;

            //设置GradientStops的默认值
            GradientStopCollection stops = new GradientStopCollection();
            stops.Add(new GradientStop() { Color = Color.FromArgb(0, 0, 0, 0), Offset = 0 });
            stops.Add(new GradientStop() { Color = new Color() { A = 0xff, R = 0xff, G = 0x42, B = 0x00 }, Offset = 0.75 });
            stops.Add(new GradientStop() { Color = new Color() { A = 0xff, R = 0xff, G = 0xff, B = 0x00 }, Offset = .5 });
            stops.Add(new GradientStop() { Color = new Color() { A = 0xff, R = 0x1a, G = 0xa4, B = 0x03 }, Offset = .25 });
            GradientStops = stops;

            //初始化后台线程
            worker = new BackgroundWorker { WorkerReportsProgress = true, WorkerSupportsCancellation = true };
            worker.ProgressChanged += new ProgressChangedEventHandler(worker_ProgressChanged);
            worker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(worker_RunWorkerCompleted);
            worker.DoWork += new DoWorkEventHandler(worker_DoWork);
        }