ArcGIS Pro 3.3 API Reference Guide
ArcGIS.Core.Data.Analyst3D Namespace / TinNode Class
Members Example

In This Topic
    TinNode Class
    In This Topic
    A TinNode is one of the three basic elements of a TIN. Nodes store X, Y and Z values and optional tag values.
    Object Model
    TinNode ClassCoordinate2D StructureCoordinate3D StructurePolygon ClassMapPoint Class
    Syntax
    public sealed class TinNode : TinElement, System.IDisposable  
    Public NotInheritable Class TinNode 
       Inherits TinElement
       Implements System.IDisposable 
    Example
    Access TIN Elements By Index
    using (ArcGIS.Core.Data.Analyst3D.TinNode node = tinDataset.GetNodeByIndex(23))
    {
    
    }
    
    using (ArcGIS.Core.Data.Analyst3D.TinEdge edge = tinDataset.GetEdgeByIndex(45))
    {
    
    }
    using (ArcGIS.Core.Data.Analyst3D.TinTriangle triangle = tinDataset.GetTriangleByIndex(22))
    {
    
    }
    
    Search for TIN Nodes
    // search all nodes
    using (ArcGIS.Core.Data.Analyst3D.TinNodeCursor nodeCursor = tinDataset.SearchNodes(null))
    {
      while (nodeCursor.MoveNext())
      {
        using (ArcGIS.Core.Data.Analyst3D.TinNode node = nodeCursor.Current)
        {
    
        }
      }
    }
    
    // search within an extent
    ArcGIS.Core.Data.Analyst3D.TinNodeFilter nodeFilter = new ArcGIS.Core.Data.Analyst3D.TinNodeFilter();
    nodeFilter.FilterEnvelope = envelope;
    using (ArcGIS.Core.Data.Analyst3D.TinNodeCursor nodeCursor = tinDataset.SearchNodes(nodeFilter))
    {
      while (nodeCursor.MoveNext())
      {
        using (ArcGIS.Core.Data.Analyst3D.TinNode node = nodeCursor.Current)
        {
    
        }
      }
    }
    
    // search all "inside" nodes
    nodeFilter = new ArcGIS.Core.Data.Analyst3D.TinNodeFilter();
    nodeFilter.FilterType = ArcGIS.Core.Data.Analyst3D.TinFilterType.InsideDataArea;
    using (ArcGIS.Core.Data.Analyst3D.TinNodeCursor nodeCursor = tinDataset.SearchNodes(nodeFilter))
    {
      while (nodeCursor.MoveNext())
      {
        using (ArcGIS.Core.Data.Analyst3D.TinNode node = nodeCursor.Current)
        {
    
        }
      }
    }
    
    // search for super nodes only
    nodeFilter = new ArcGIS.Core.Data.Analyst3D.TinNodeFilter();
    nodeFilter.FilterEnvelope = tinDataset.GetSuperNodeExtent();
    nodeFilter.SuperNode = true;
    using (ArcGIS.Core.Data.Analyst3D.TinNodeCursor nodeCursor = tinDataset.SearchNodes(nodeFilter))
    {
      while (nodeCursor.MoveNext())
      {
        using (ArcGIS.Core.Data.Analyst3D.TinNode node = nodeCursor.Current)
        {
    
        }
      }
    }
    
    TIN Nodes
    // node coordinates
    var coord3D = node.Coordinate3D;
    var mapPoint = node.ToMapPoint();
    // is the node "inside"
    var isInsideNode = node.IsInsideDataArea;
    
    // get all other nodes connected to "node" 
    IReadOnlyList<ArcGIS.Core.Data.Analyst3D.TinNode> adjNodes = node.GetAdjacentNodes();
    
    // get all edges that share "node" as a from node. 
    IReadOnlyList<ArcGIS.Core.Data.Analyst3D.TinEdge> edges = node.GetIncidentEdges();
    
    // get all triangles that share "node"
    IReadOnlyList<ArcGIS.Core.Data.Analyst3D.TinTriangle> triangles = node.GetIncidentTriangles();
    
    Seach for TIN Nodes, Edges, Triangles
    // search all "inside" nodes
    using (ArcGIS.Core.Data.Analyst3D.TinNodeCursor nodeCursor = tinLayer.SearchNodes(null))
    {
      while (nodeCursor.MoveNext())
      {
        using (ArcGIS.Core.Data.Analyst3D.TinNode node = nodeCursor.Current)
        {
    
        }
      }
    }
    
    // search "inside" nodes with an extent
    ArcGIS.Core.Data.Analyst3D.TinNodeFilter nodeFilter = new ArcGIS.Core.Data.Analyst3D.TinNodeFilter();
    nodeFilter.FilterEnvelope = envelope;
    using (ArcGIS.Core.Data.Analyst3D.TinNodeCursor nodeCursor = tinLayer.SearchNodes(nodeFilter))
    {
      while (nodeCursor.MoveNext())
      {
        using (ArcGIS.Core.Data.Analyst3D.TinNode node = nodeCursor.Current)
        {
    
        }
      }
    }
    
    // search for super nodes only
    var supernodeFilter = new ArcGIS.Core.Data.Analyst3D.TinNodeFilter();
    supernodeFilter.FilterEnvelope = tinDataset.GetSuperNodeExtent();
    supernodeFilter.DataElementsOnly = false;
    supernodeFilter.SuperNode = true;
    using (ArcGIS.Core.Data.Analyst3D.TinNodeCursor nodeCursor = tinLayer.SearchNodes(nodeFilter))
    {
      while (nodeCursor.MoveNext())
      {
        using (ArcGIS.Core.Data.Analyst3D.TinNode node = nodeCursor.Current)
        {
    
        }
      }
    }
    
    
    // search all edges within an extent
    //    this could include outside or edges attached to super nodes depending upon the extent
    ArcGIS.Core.Data.Analyst3D.TinEdgeFilter edgeFilterAll = new ArcGIS.Core.Data.Analyst3D.TinEdgeFilter();
    edgeFilterAll.FilterEnvelope = envelope;
    edgeFilterAll.DataElementsOnly = false;
    using (ArcGIS.Core.Data.Analyst3D.TinEdgeCursor edgeCursor = tinLayer.SearchEdges(edgeFilterAll))
    {
      while (edgeCursor.MoveNext())
      {
        using (ArcGIS.Core.Data.Analyst3D.TinEdge edge = edgeCursor.Current)
        {
        }
      }
    }
    
    
    // search for hard edges in the TIN
    var edgeFilter = new ArcGIS.Core.Data.Analyst3D.TinEdgeFilter();
    edgeFilter.FilterByEdgeType = true;
    edgeFilter.EdgeType = ArcGIS.Core.Data.Analyst3D.TinEdgeType.HardEdge;
    using (ArcGIS.Core.Data.Analyst3D.TinEdgeCursor edgeCursor = tinLayer.SearchEdges(edgeFilter))
    {
      while (edgeCursor.MoveNext())
      {
        using (ArcGIS.Core.Data.Analyst3D.TinEdge edge = edgeCursor.Current)
        {
    
        }
      }
    }
    
    
    // search for "inside" triangles in an extent
    ArcGIS.Core.Data.Analyst3D.TinTriangleFilter triangleFilter = new ArcGIS.Core.Data.Analyst3D.TinTriangleFilter();
    triangleFilter.FilterEnvelope = envelope;
    triangleFilter.DataElementsOnly = true;
    using (ArcGIS.Core.Data.Analyst3D.TinTriangleCursor triangleCursor = tinLayer.SearchTriangles(triangleFilter))
    {
      while (triangleCursor.MoveNext())
      {
        using (ArcGIS.Core.Data.Analyst3D.TinTriangle triangle = triangleCursor.Current)
        {
        }
      }
    }
    Inheritance Hierarchy

    System.Object
       ArcGIS.Core.CoreObjectsBase
          ArcGIS.Core.Data.Analyst3D.TinElement
             ArcGIS.Core.Data.Analyst3D.TinNode

    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3.2 or higher.
    See Also