ArcGIS Pro 3.3 API Reference Guide
ArcGIS.Core.Data.Analyst3D Namespace / TinDataset Class / GetNaturalNeighbors Method
Point location. This will be projected into the spatial reference of the TIN dataset.
Example

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    GetNaturalNeighbors Method
    In This Topic
    Gets the set of nodes that are the natural neighbors of the specified point. The natural neighbors of a point are the nodes it would connect with to form triangles if it were inserted in the triangulation. They are the closest surrounding nodes in all directions. This method must be called on the MCT. Use QueuedTask.Run.
    Syntax
    public IReadOnlyList<TinNode> GetNaturalNeighbors( 
       MapPoint point
    )
    Public Function GetNaturalNeighbors( _
       ByVal point As MapPoint _
    ) As IReadOnlyList(Of TinNode)

    Parameters

    point
    Point location. This will be projected into the spatial reference of the TIN dataset.

    Return Value

    A IReadOnlyList of TinNode
    Exceptions
    ExceptionDescription
    Point is null
    This method or property must be called within the lambda passed to QueuedTask.Run
    Example
    Access TIN Elements by MapPoint
    // "identify" the closest node, edge, triangle
    using (var nearestNode = tinDataset.GetNearestNode(mapPoint))
    {
    }
    
    using (var nearestEdge = tinDataset.GetNearestEdge(mapPoint))
    {
    }
    using (var triangle = tinDataset.GetTriangleByPoint(mapPoint))
    {
    
    }
    
    // get the set of natural neighbours 
    // (set of nodes that "mapPoint" would connect with to form triangles if it was added to the TIN)
    IReadOnlyList<ArcGIS.Core.Data.Analyst3D.TinNode> naturalNeighbors = tinDataset.GetNaturalNeighbors(mapPoint);
    
    // get the set of triangles whose circumscribed circle contains "mapPoint" 
    IReadOnlyList<ArcGIS.Core.Data.Analyst3D.TinTriangle> triangles = tinDataset.GetTriangleNeighborhood(mapPoint);
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3.2 or higher.
    See Also