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
};
05-02 23:35