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

C#
Visual Basic (Declaration)

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

Exception	Description
System.ArgumentNullException	Point is null
ArcGIS.Core.CalledOnWrongThreadException	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.

Reference

TinDataset Class
TinDataset Members

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