ARCGIS PRO SDK 图层唯一值渲染

一、如果【地块回退】为面, 按"DKMC"字段，在面中心配置符号Pushpin

Await QueuedTask.Run(Sub()
                         pFeaturelayer = pmap.FindLayers("地块回退").First()
                         '-----------------唯一值渲染
                         Dim Fields = New List(Of String) From {"DKMC"}   '用于检索唯一值的字段
                         '将点符号构建为模板符号
                         Dim pointSym As CIMPointSymbol = SymbolFactory.Instance.ConstructPointSymbol(ColorFactory.Instance.GreenRGB, 16.0, SimpleMarkerStyle.Pushpin)
                         Dim symbolPointTemplate As CIMSymbolReference = pointSym.MakeSymbolReference()
                         '构造唯一值呈现器的呈现器定义
                         Dim uniqueValueRendererDef As UniqueValueRendererDefinition = New UniqueValueRendererDefinition(Fields, symbolPointTemplate)
                         '创建唯一值呈现器
                         Dim uniqueValueRenderer As CIMUniqueValueRenderer = pFeatu