原文: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

                 };