https://community.esri.com/t5/arcgis-pro-sdk-questions/how-to-add-symbol-and-symbol-layers/m-p/1387626#M11157 <P>Hi,</P><P>&nbsp;</P><P>Are you looking to add a new class break to a Unique Value renderer? If so, here is a code snippet:</P><LI-CODE lang="csharp"> var layer = MapView.Active.Map.GetLayersAsFlattenedList().OfType&lt;FeatureLayer&gt;().FirstOrDefault(); if (layer == null) return; QueuedTask.Run( () =&gt; { var uvr = layer.GetRenderer() as CIMUniqueValueRenderer; if (uvr == null) return; var cimUniqueValueGroup = uvr.Groups[0] as CIMUniqueValueGroup; var classes = cimUniqueValueGroup.Classes; var cimUniqueValueClass = new CIMUniqueValueClass(); cimUniqueValueClass.Label = "New Value"; var lineSymbol = SymbolFactory.Instance.ConstructLineSymbol(ColorFactory.Instance.RedRGB, 2.0, SimpleLineStyle.Solid) ; lineSymbol.UseRealWorldSymbolSizes = false; cimUniqueValueClass.Symbol = lineSymbol.MakeSymbolReference(); #region New value to the class var cimUniqueValues = new List&lt;CIMUniqueValue&gt;(); var cimUniqueValue = new CIMUniqueValue() { FieldValues = new string[] { "New Value" } }; cimUniqueValues.Add(cimUniqueValue); #endregion cimUniqueValueClass.Values = cimUniqueValues.ToArray(); cimUniqueValueClass.Visible = true; var classesList = classes.ToList(); classesList.Add(cimUniqueValueClass); cimUniqueValueGroup.Classes = classesList.ToArray(); uvr.Groups[0] = cimUniqueValueGroup; layer.SetRenderer(uvr); });</LI-CODE><P>&nbsp;</P><P>Regarding your second question, if you are looking to add a new Symbol layer to an existing symbol, this is the code snippet:</P><P>&nbsp;</P><LI-CODE lang="csharp">var layer = MapView.Active.Map.GetLayersAsFlattenedList().OfType&lt;FeatureLayer&gt;().FirstOrDefault( s =&gt; s.ShapeType == esriGeometryType.esriGeometryPolyline); QueuedTask.Run( () =&gt; { var simpleRenderer = layer.GetRenderer() as CIMSimpleRenderer; var lineSymbol = simpleRenderer.Symbol.Symbol as CIMLineSymbol; if (lineSymbol == null) return; var layers = lineSymbol.SymbolLayers; var solidStroke = SymbolFactory.Instance.ConstructStroke(ColorFactory.Instance.RedRGB, 2.0, SimpleLineStyle.Solid); var offSetEffect = new CIMGeometricEffectOffset() { Method = GeometricEffectOffsetMethod.Rounded, Offset = 3, Option = GeometricEffectOffsetOption.Fast }; solidStroke.Effects = new CIMGeometricEffect[] { offSetEffect }; var layersList = layers.ToList(); layersList.Add(solidStroke); lineSymbol.SymbolLayers = layersList.ToArray(); simpleRenderer.Symbol = lineSymbol.MakeSymbolReference(); layer.SetRenderer(simpleRenderer); });</LI-CODE><P>&nbsp;</P> Tue, 27 Feb 2024 18:49:54 GMT UmaHarano 2024-02-27T18:49:54Z https://community.esri.com/t5/arcgis-pro-sdk-questions/how-to-add-symbol-and-symbol-layers/m-p/1386414#M11145 <P>Frm <A href="https://github.com/Esri/cim-spec/blob/main/docs/v3/Overview-Symbols.md" target="_blank" rel="noopener">cim-spec/docs/v3/Overview-Symbols.md at main · Esri/cim-spec (github.com)</A>, I can read the number and properties of symbol and symbol layers. However, how to add a symbol or symbol layer of an existing symbolic system in a layer with SDK?&nbsp;</P> Sun, 25 Feb 2024 05:47:10 GMT https://community.esri.com/t5/arcgis-pro-sdk-questions/how-to-add-symbol-and-symbol-layers/m-p/1386414#M11145 HaoWong 2024-02-25T05:47:10Z https://community.esri.com/t5/arcgis-pro-sdk-questions/how-to-add-symbol-and-symbol-layers/m-p/1386418#M11146 <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="20240224102317.png" style="width: 407px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/95741iE169F969D1C7FA34/image-size/large?v=v2&amp;px=999" role="button" title="20240224102317.png" alt="20240224102317.png" /></span></P><P>For example, if there is a symbol system represented by a unique value, I programmed a <STRONG>CIMLineSymbol</STRONG> variable. How to add it and generate a new line in this table.</P><P>&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="20240224102337.png" style="width: 409px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/95742i69428662D207AC91/image-size/large?v=v2&amp;px=999" role="button" title="20240224102337.png" alt="20240224102337.png" /></span></P><P>Also, when I programmed a <STRONG>CIMSymbolLayer</STRONG> variable, how to add it to the above table as a new line?&nbsp;</P> Sun, 25 Feb 2024 05:47:39 GMT https://community.esri.com/t5/arcgis-pro-sdk-questions/how-to-add-symbol-and-symbol-layers/m-p/1386418#M11146 HaoWong 2024-02-25T05:47:39Z https://community.esri.com/t5/arcgis-pro-sdk-questions/how-to-add-symbol-and-symbol-layers/m-p/1387626#M11157 <P>Hi,</P><P>&nbsp;</P><P>Are you looking to add a new class break to a Unique Value renderer? If so, here is a code snippet:</P><LI-CODE lang="csharp"> var layer = MapView.Active.Map.GetLayersAsFlattenedList().OfType&lt;FeatureLayer&gt;().FirstOrDefault(); if (layer == null) return; QueuedTask.Run( () =&gt; { var uvr = layer.GetRenderer() as CIMUniqueValueRenderer; if (uvr == null) return; var cimUniqueValueGroup = uvr.Groups[0] as CIMUniqueValueGroup; var classes = cimUniqueValueGroup.Classes; var cimUniqueValueClass = new CIMUniqueValueClass(); cimUniqueValueClass.Label = "New Value"; var lineSymbol = SymbolFactory.Instance.ConstructLineSymbol(ColorFactory.Instance.RedRGB, 2.0, SimpleLineStyle.Solid) ; lineSymbol.UseRealWorldSymbolSizes = false; cimUniqueValueClass.Symbol = lineSymbol.MakeSymbolReference(); #region New value to the class var cimUniqueValues = new List&lt;CIMUniqueValue&gt;(); var cimUniqueValue = new CIMUniqueValue() { FieldValues = new string[] { "New Value" } }; cimUniqueValues.Add(cimUniqueValue); #endregion cimUniqueValueClass.Values = cimUniqueValues.ToArray(); cimUniqueValueClass.Visible = true; var classesList = classes.ToList(); classesList.Add(cimUniqueValueClass); cimUniqueValueGroup.Classes = classesList.ToArray(); uvr.Groups[0] = cimUniqueValueGroup; layer.SetRenderer(uvr); });</LI-CODE><P>&nbsp;</P><P>Regarding your second question, if you are looking to add a new Symbol layer to an existing symbol, this is the code snippet:</P><P>&nbsp;</P><LI-CODE lang="csharp">var layer = MapView.Active.Map.GetLayersAsFlattenedList().OfType&lt;FeatureLayer&gt;().FirstOrDefault( s =&gt; s.ShapeType == esriGeometryType.esriGeometryPolyline); QueuedTask.Run( () =&gt; { var simpleRenderer = layer.GetRenderer() as CIMSimpleRenderer; var lineSymbol = simpleRenderer.Symbol.Symbol as CIMLineSymbol; if (lineSymbol == null) return; var layers = lineSymbol.SymbolLayers; var solidStroke = SymbolFactory.Instance.ConstructStroke(ColorFactory.Instance.RedRGB, 2.0, SimpleLineStyle.Solid); var offSetEffect = new CIMGeometricEffectOffset() { Method = GeometricEffectOffsetMethod.Rounded, Offset = 3, Option = GeometricEffectOffsetOption.Fast }; solidStroke.Effects = new CIMGeometricEffect[] { offSetEffect }; var layersList = layers.ToList(); layersList.Add(solidStroke); lineSymbol.SymbolLayers = layersList.ToArray(); simpleRenderer.Symbol = lineSymbol.MakeSymbolReference(); layer.SetRenderer(simpleRenderer); });</LI-CODE><P>&nbsp;</P> Tue, 27 Feb 2024 18:49:54 GMT https://community.esri.com/t5/arcgis-pro-sdk-questions/how-to-add-symbol-and-symbol-layers/m-p/1387626#M11157 UmaHarano 2024-02-27T18:49:54Z