ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / TinNodeRendererDefinition Class
Members Example Version

TinNodeRendererDefinition Class
Represents a simple renderer definition to draw all nodes in a surface layer with a common symbol.
Object Model
TinNodeRendererDefinition ClassCIMSymbolReference Class
Syntax
public class TinNodeRendererDefinition : TinSimpleRendererDefinition 
Remarks
The symbol used to define the TinSimpleRendererDefinition.SymbolTemplate should be a ArcGIS.Core.CIM.CIMPointSymbol.

Once you define a simple renderer, you can call a surface layer's CanCreateRenderer, CreateRenderer, CanSetRenderer and SetRenderer methods to create and assign a renderer to a surface layer.

Example
Create a TinLayer with renderers
//Must be on the QueuedTask.Run()

var tinCP_renderers = new TinLayerCreationParams(tinDataset);
tinCP_renderers.Name = "My TIN layer";
tinCP_renderers.IsVisible = true;

// define the node renderer - use defaults
var node_rd = new TinNodeRendererDefinition();

// define the face/surface renderer
var face_rd = new TinFaceClassBreaksRendererDefinition();
face_rd.ClassificationMethod = ClassificationMethod.NaturalBreaks;
// accept default color ramp, breakCount

// set up the renderer dictionary
var rendererDict = new Dictionary<SurfaceRendererTarget, TinRendererDefinition>();
rendererDict.Add(SurfaceRendererTarget.Points, node_rd);
rendererDict.Add(SurfaceRendererTarget.Surface, face_rd);

// assign the dictionary to the creation params
tinCP_renderers.RendererDefinitions = rendererDict;

// create the layer
var tinLayer_rd = LayerFactory.Instance.CreateLayer<TinLayer>(tinCP_renderers, MapView.Active.Map);
Simple Node Renderer
// applies to TIN layers only

var nodeRendererDef = new TinNodeRendererDefinition();
nodeRendererDef.Description = "Nodes";
nodeRendererDef.Label = "Nodes";
nodeRendererDef.SymbolTemplate = nodeSymbol.MakeSymbolReference();

var tinLayer = MapView.Active.Map.GetLayersAsFlattenedList().OfType<TinLayer>().FirstOrDefault();
if (tinLayer == null)
  return;

if (tinLayer.CanCreateRenderer(nodeRendererDef))
{
  CIMTinRenderer renderer = tinLayer.CreateRenderer(nodeRendererDef);
  if (tinLayer.CanSetRenderer(renderer, SurfaceRendererTarget.Points))
    tinLayer.SetRenderer(renderer, SurfaceRendererTarget.Points);
}
Inheritance Hierarchy

System.Object
   ArcGIS.Desktop.Mapping.LayerDrawingDefinition
      ArcGIS.Desktop.Mapping.TinRendererDefinition
         ArcGIS.Desktop.Mapping.TinSimpleRendererDefinition
            ArcGIS.Desktop.Mapping.TinNodeRendererDefinition

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3.2 or higher.
See Also