ArcGIS API for Silverlight 地图元素点闪烁，线流动显示的处理方式

<Grid x:Name="LayoutRoot" Background="White">
        <!--地图资源样式模版-->

        <Grid.Resources>

            <!--预警闪烁标记符号-->
            <esri:MarkerSymbol x:Name="DefaultMarkerSymbol">
                <esri:MarkerSymbol.ControlTemplate>
                    <ControlTemplate>
                        <Canvas>
                            <vsm:visualstatemanager.VisualStateGroups>
                                <vsm:VisualStateGroup x:Name="CommonStates">
                                    <vsm:VisualState x:Name="normal">
                                        <Storyboard RepeatBehavior="Forever">
                                            <DoubleAnimation BeginTime="00:00:00" Storyboard.TargetName="ellipse" Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleX)" From="1" To="5" Duration="00:00:02" />
                                            <DoubleAnimation BeginTime="0:0:0" Storyboard.TargetName="ellipse" Storyboard.TargetProperty="(UIElement.RenderTransform).(ScaleTransform.ScaleY)" From="1" To="5" Duration="00:00:02" />
                                            <DoubleAnimation BeginTime="00:00:00" Storyboard.TargetName="ellipse" Storyboard.TargetProperty="(UIElement.Opacity)" From="1" To="0" Duration="00:00:02" />
                                        </Storyboard>
                                    </vsm:VisualState>
                                </vsm:VisualStateGroup>
                            </vsm:visualstatemanager.VisualStateGroups>
                            <Ellipse Height="25" Width="25" Canvas.Left="0" Canvas.Top="0" RenderTransformOrigin="0.5,0.5" x:Name="ellipse" IsHitTestVisible="False">
                                <Ellipse.RenderTransform>
                                    <ScaleTransform />
                                </Ellipse.RenderTransform>
                                <Ellipse.Fill>
                                    <RadialGradientBrush>
                                        <GradientStop Color="#00FF0000" />
                                        <GradientStop Color="#FFFF0000" Offset="0.25" />
                                        <GradientStop Color="#00FF0000" Offset="0.5" />
                                        <GradientStop Color="#FFFF0000" Offset="0.75" />
                                        <GradientStop Color="#00FFFFFF" Offset="1" />
                                    </RadialGradientBrush>
                                </Ellipse.Fill>
                            </Ellipse>
                            <Ellipse Height="20" Width="20" Canvas.Left="0" Canvas.Top="0" Fill="#FFFFFFFF" x:Name="ellipse1" />
                        </Canvas>
                    </ControlTemplate>
                </esri:MarkerSymbol.ControlTemplate>
            </esri:MarkerSymbol>

           <!--线层流动显示-->
            <esri:Linesymbol x:Key="CustomAnimatedRedLinesymbol">
                <esri:Linesymbol.ControlTemplate>
                    <ControlTemplate >
                        <Grid>
                            <visualstatemanager.VisualStateGroups>
                                <VisualStateGroup x:Name="CommonStates">
                                    <VisualState x:Name="normal">
                                        <Storyboard RepeatBehavior="Forever">
                                            <DoubleAnimation BeginTime="0:0:0" Storyboard.TargetName="Element" Storyboard.TargetProperty="strokeDashOffset" To="1000" Duration="0:3:0" />
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>
                            </visualstatemanager.VisualStateGroups>
                            <Path x:Name="Element" strokeDashArray="2,1" strokeDashOffset="0" stroke="Blue" strokeThickness="2" />
                        </Grid>
                    </ControlTemplate>
                </esri:Linesymbol.ControlTemplate>
            </esri:Linesymbol>

     </Grid.Resources>

</Grid>

                 //点闪烁

                Graphic g = new Graphic()
                {
                    Geometry = mercator.FromGeographic(new MapPoint(double.Parse(findResult.Latitute.ToString().Trim()),double.Parse(findResult.Longitute.ToString().Trim()))),Symbol = LayoutRoot.Resources["DefaultMarkerSymbol"] as Symbol
                };

                 //线流动显示

                Graphic g = new Graphic()
                 {
                             Geometry = mp,Symbol = LayoutRoot.Resources["RedMarkerSymbol"] as Symbol
                 };