//Create the points for the  triangulation.
var points = Point2d.RandomPoints(0, 10, new Box2f(-10, 10));
//Create the triangulation.
var tri = new Triangulation2<EIK>(points);
//Insert a point.
tri.Insert(new Point2d(1,1));
//Print some info about the triangulation.
tri.Print();

//Get the points.
var points = new Point2d[tri.VertexCount];
tri.GetPoints(points, points.Length);
//Get the triangle indices where the index is a points index in trianglation.
var indices = new int[tri.TriangleCount];
tri.GetIndices(indices, indices.Length);
//Get the triangles a shapes.
var triangles = new Triangle2d[tri.TriangleCount];
tri.GetTriangles(triangles, triangles.Length);

var vertices = new TriVertex2[tri.VertexCount];
tri.GetVertices(vertices, vertices.Length);
var faces = new TriFace2[tri.TriangleCount];
tri.GetFaces(faces, faces.Length);
var face = faces[0];
Console.WriteLine("Face index = " +face.Index);
Console.WriteLine("Face first vertex index = " + face.GetVertexIndex(0));
Console.WriteLine("Face second vertex index = " + face.GetVertexIndex(1));
Console.WriteLine("Face third vertex index =" + face.GetVertexIndex(2));
var vertex = vertices[0];
Console.WriteLine("Vertex index = " + vertex.Index);
Console.WriteLine("Vertex point = " + vertex.Point);
Console.WriteLine("Vertex face index = " + vertex.FaceIndex);

if(tri.GetVertex(index, out TriVertex2 vertex))
{
    //Vertex was found
}

//Create the triangulation.
var tri = new Triangulation2<EIK>(points);
int buildStamp = tri.BuildStamp;
//Get the first vertex
TriVertex2 vertex;
tri.GetVertex(0, out vertex);
//Insert a new point.
tri.Insert(new Point2d(1,1));
if(buildStamp != tri.BuildStamp)
{
    //Triangulation has changed so vertex data maybe invalid. Will need to retrieve again.
    tri.GetVertex(0, out vertex);
    buildStamp = tri.BuildStamp;
}