ArcGIS for Silverligth的自定义MarkerSymbol模板

通过自定义MarkerSymbol的控件模板，实现在ArcGIS中扩展符号样式。

<esri:MarkerSymbol x:Key="myMarkerSymbolTemplate">
    <esri:MarkerSymbol.ControlTemplate>
        <ControlTemplate>
            <Grid>
                <Canvas>
                    <Polyline Points="0,0 10,0 5,10" Stroke="Red" StrokeThickness="2" />
                </Canvas>
            </Grid>
        </ControlTemplate>
    </esri:MarkerSymbol.ControlTemplate>
</esri:MarkerSymbol>