arcgis api for silverlight自定义一个Symbol

概述用xaml写一个ControlTemplate。源码如下 <ControlTemplate      xmlns="http://schemas.microsoft.com/client/2007"        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"        xmlns:sys="clr-namespace:System

用xaml写一个ControlTemplate。源码如下

<ControlTemplate 
    xmlns="http://schemas.microsoft.com/client/2007"   
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"   
    xmlns:sys="clr-namespace:System;assembly=mscorlib"   
    xmlns:vsm="clr-namespace:System.windows;assembly=System.windows"    >
    <GrID
        RendertransformOrigin="0.5,0.5"       
        Height="50"       
        WIDth="50">
        <GrID.Rendertransform>
            <transformGroup>
                <Scaletransform x:name="scale" ScaleX="1" ScaleY="1" />
                <Translatetransform X="-25" Y="-25"/>
            </transformGroup>
        </GrID.Rendertransform>

        <vsm:visualstatemanager.VisualStateGroups>
            <vsm:VisualStateGroup x:name="CommonStates">
                <vsm:VisualState x:name="normal">
                    <Storyboard>
                        <DoubleAnimation BeginTime="0:0:0" Storyboard.Targetname="scale" Storyboard.TargetProperty="ScaleX" To="1" Duration="0:0:0.3" />
                        <DoubleAnimation BeginTime="0:0:0" Storyboard.Targetname="scale" Storyboard.TargetProperty="ScaleY" To="1" Duration="0:0:0.3" />
                    </Storyboard>
                </vsm:VisualState>
                <vsm:VisualState x:name="MouSEOver">
                    <Storyboard>
                        <DoubleAnimation BeginTime="0:0:0" Storyboard.Targetname="scale" Storyboard.TargetProperty="ScaleX" To="2" Duration="0:0:0.3" />
                        <DoubleAnimation BeginTime="0:0:0" Storyboard.Targetname="scale" Storyboard.TargetProperty="ScaleY" To="2" Duration="0:0:0.3" />
                    </Storyboard>
                </vsm:VisualState>
            </vsm:VisualStateGroup>
            <vsm:VisualStateGroup x:name="SelectionStates">
                <vsm:VisualState x:name="Selected" />
                <vsm:VisualState x:name="Unselected" />
            </vsm:VisualStateGroup>
        </vsm:visualstatemanager.VisualStateGroups>
        <Image           
            HorizontalAlignment="Center"           
            VerticalAlignment="Center"           
            Height="16"           
            WIDth="16"           
            Source="Images/sym.png"  
            />
        <Image
            HorizontalAlignment="Center"           
            VerticalAlignment="Center"           
            Height="24"           
            WIDth="24"           
            Source="Images/symout.png"/>
        <TextBlock HorizontalAlignment="Center"           
            VerticalAlignment="Center"           
            Height="20"           
            WIDth="40"    
            margin="0,30"
            FontWeight="Bold"
            Foreground="Purple"
            FontSize="9"
            Text="mynumb"/>
    </GrID>
</ControlTemplate>

 

改变其属性“生成 *** 作”为”嵌入的资源“（这个很重要）

定义一个类OnSymbol继承自MarkerSymbol

public class OnSymbol : MarkerSymbol
    {
        public OnSymbol(string username)
            : base()
        {
            try
            {
                string key = "LS.PRJ2011.Tracker.OnlinSymbol.xaml";
                Stream stream = typeof(OnSymbol).Assembly.GetManifestResourceStream(key);
                string template = new StreamReader(stream).ReadToEnd();
                //template = template.Replace("force1.png","force" + sType.ToString() + ".png");
                //template = template.Replace("comp1.png","comp" + sComp.ToString() + ".png");
                template = template.Replace("mynumb",username);
                this.ControlTemplate = (ControlTemplate)XamlReader.Load(template);
            }
            catch (Exception ex)
            {
                MainPage.add_to_logger(ex);
            }
        }
    }

然后，对于图层对象的Symbol就可以直接赋值OnSymbol 实例

  tmpGraphic.Symbol = new OnSymbol(mobilename);

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