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for .net 100.1 如何设置Renderer；如何根据不同的数据产生不同的渲染效果

例如图上的效果，我要根据每个点的数据对它产生不同的渲染效果（自动渲染，不用在添加元素的是时候配置它的Symbol，或者元素数据变化的时候渲染效果自动改变
搜狗截图17年08月09日1239_1.png

）
GraphicsOverlay overlay = new GraphicsOverlay();

UniqueValueRenderer regionRenderer = new UniqueValueRenderer();

SimpleMarkerSymbol pointSymbol1 = new SimpleMarkerSymbol()

{

     Color = Colors.Red,

     Size = 10,

     Style = SimpleMarkerSymbolStyle.Circle

};

SimpleMarkerSymbol pointSymbol2 = new SimpleMarkerSymbol()

{

     Color = Colors.Blue,

     Size = 10,

     Style = SimpleMarkerSymbolStyle.Circle

};

SimpleMarkerSymbol pointSymbol3 = new SimpleMarkerSymbol()

{

      Color = Colors.Green,

      Size = 10,

      Style = SimpleMarkerSymbolStyle.Circle

};

SimpleMarkerSymbol pointSymbol4 = new SimpleMarkerSymbol()

{

    Color = Colors.AliceBlue,

    Size = 10,

    Style = SimpleMarkerSymbolStyle.Circle

};



regionRenderer.FieldNames.Add("pointSymbol");

regionRenderer.UniqueValues.Add(new UniqueValue("Number1", "Number1", pointSymbol1,"1"));

regionRenderer.UniqueValues.Add(new UniqueValue("Number2", "Number2", pointSymbol2, "2"));

regionRenderer.UniqueValues.Add(new UniqueValue("Number3", "Number3", pointSymbol3, "3"));

regionRenderer.DefaultLabel = "null";

regionRenderer.DefaultSymbol = pointSymbol4;



overlay.Renderer = regionRenderer;

MyMapView.GraphicsOverlays.Add(overlay);



//根据这个元素的数据应该怎么对应UniqueValue里面的东西进行不同的渲染

 var tmp = new Graphic(new MapPoint(30, 30, SpatialReferences.Wgs84));

 overlay.Graphics.Add(tmp);

元素的数据应该怎么对应UniqueValue？？？
 
2017-08-09 添加评论
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没有找到相关结果

    已邀请:

    朱新颖

    赞同来自: 席西 、谢峥

    元素的属性对应唯一值，你需要构建Graphic时设置属性
    public Graphic( Geometry geometry, IEnumerable<KeyValuePair<string, Object>> attributes )
    回复时间：2017-08-09 13:38:59 2 3
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    席西

    赞同来自:

    正解
    回复时间：2017-08-09 14:32:23 0 1
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    谢峥

    赞同来自:

    正确代码如下：
                GraphicsOverlay overlay = new GraphicsOverlay();
    
            UniqueValueRenderer regionRenderer = new UniqueValueRenderer();
    
            SimpleMarkerSymbol pointSymbol1 = new SimpleMarkerSymbol()
    
            {
    
                Color = Colors.Red,
    
                Size = 10,
    
                Style = SimpleMarkerSymbolStyle.Circle
    
            };
    
            SimpleMarkerSymbol pointSymbol2 = new SimpleMarkerSymbol()
    
            {
    
                Color = Colors.Blue,
    
                Size = 10,
    
                Style = SimpleMarkerSymbolStyle.Circle
    
            };
    
            SimpleMarkerSymbol pointSymbol3 = new SimpleMarkerSymbol()
    
            {
    
                Color = Colors.Green,
    
                Size = 10,
    
                Style = SimpleMarkerSymbolStyle.Circle
    
            };
    
            SimpleMarkerSymbol pointSymbol4 = new SimpleMarkerSymbol()
    
            {
    
                Color = Colors.AliceBlue,
    
                Size = 10,
    
                Style = SimpleMarkerSymbolStyle.Circle
    
            };
    
            
    
            regionRenderer.FieldNames.Add("pointSymbol");//Symbol集合的名字（用于查找）
    
            regionRenderer.UniqueValues.Add(new UniqueValue("", "", pointSymbol1, "Number1"));
    
            regionRenderer.UniqueValues.Add(new UniqueValue("", "", pointSymbol2, "Number2"));
    
            regionRenderer.UniqueValues.Add(new UniqueValue("", "", pointSymbol3, "Number3"));
    
            regionRenderer.DefaultLabel = "Other";
    
            regionRenderer.DefaultSymbol = pointSymbol4;
    

    
            
    
            overlay.Renderer = regionRenderer;
    
            MyMapView.GraphicsOverlays.Add(overlay);
    

    

    
            var tmp = new Graphic(new MapPoint(30, 30, SpatialReferences.Wgs84));
    
            tmp.Attributes["pointSymbol"] = "Number1";//自动向Attributes里面添加一个属性（更改该属性的值可以改变它的Symbol）
    
            overlay.Graphics.Add(tmp);
    回复时间：2017-08-09 19:27:02 0 0
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