SuperMap.WindowsPhone.Clustering.ScatterClusterer.RefreshRotation C# (CSharp) Method

        internal void RefreshRotation()
        {
            OnPropertyChanged("EnableRotation");
            if ((lastCluster != null) && !double.IsNaN(lastResolution))
            {
                cache = new Dictionary<int, ScatterStyle>();//等于直接置空前面的
                OnCreateFeature(lastFC, lastCenter, lastMaxClusterCount);
                ClusterFeaturesAsync(this.lastCluster, lastResolution);
            }
        }