GetAdjacentTriangles Method

In This Topic

Gets the list of triangles adjacent to this TIN triangle. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

Visual Basic (Declaration)
C#

Public Function GetAdjacentTriangles() As IReadOnlyList(Of TinTriangle)

public IReadOnlyList<TinTriangle> GetAdjacentTriangles()

Return Value

An IReadOnlyList of TinTriangle.

Exceptions

Exception	Description
ArcGIS.Core.CalledOnWrongThreadException	This method or property must be called within the lambda passed to QueuedTask.Run

Remarks

Note that triangles that border the TIN's extreme perimeter will not have adjacent triangles on all sides.

Example

TIN Triangles

{
  // nodes, edges of the triangle
  var triNnodes = triangle.Nodes;
  var triEdges = triangle.Edges;

  // triangle geometry
  polygon = triangle.ToPolygon();
  // triangle length
  var triLength = triangle.Length;
  // triangle area 
  var triArea = triangle.Area;
  // is the triangle "inside"
  var isInsideTriangle = triangle.IsInsideDataArea;

  // triangle aspect and slope  (radians)
  var aspect = triangle.Aspect;
  var slope = triangle.Slope;

  // get centroid
  var centroid = triangle.GetCentroid();

  // get normal
  var normal = triangle.GetNormal();

  // get adjacent triangles
  var adjTriangles = triangle.GetAdjacentTriangles();

  // get area of triangle that falls between the z values
  double minZ = 1.0;
  double maxZ = 3.0;
  IReadOnlyList<Coordinate3D> coords = triangle.GetPointsBetweenZs(minZ, maxZ);
}

Requirements

Target Platforms: Windows 11 Home, Pro, Enterprise (64 bit)

ArcGIS Pro version: 3.2 or higher.

Reference

TinTriangle Class
TinTriangle Members

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