private void GivenAFaceWith3Edges()
{
var a = new DcelHalfEdge();
var b = new DcelHalfEdge();
var c = new DcelHalfEdge();
a.Next = b;
b.Next = c;
c.Next = a;
_face = new DcelFace()
{
HalfEdge = a
};
_expectedHalfEdges = new[] { a, b, c };
}
public void TestDcelMeshDirty()
{
DcelMesh mesh = new DcelMesh();
DcelVertex v0 = new DcelVertex();
DcelVertex v1 = new DcelVertex();
DcelVertex v2 = new DcelVertex();
DcelEdge e0 = new DcelEdge();
DcelEdge e1 = new DcelEdge();
DcelEdge e2 = new DcelEdge();
DcelFace f = new DcelFace();
// Link features
v0.Edge = e0;
e0.Origin = v0;
mesh.Vertex = v0;
Assert.AreEqual(1, mesh.Vertices.Count);
Assert.AreEqual(1, mesh.Edges.Count);
Assert.AreEqual(0, mesh.Faces.Count);
// Link more
e0.Next = e1;
e1.Next = e2;
mesh.Dirty = true;
Assert.AreEqual(3, mesh.Edges.Count);
e1.Origin = v1;
e2.Origin = v2;
mesh.Dirty = true;
Assert.AreEqual(3, mesh.Vertices.Count);
e0.Face = f;
f.Boundary = e1;
mesh.Dirty = true;
Assert.AreEqual(1, mesh.Faces.Count);
}
public void TestDcelMeshDirty()
{
DcelMesh mesh = new DcelMesh();
DcelVertex v0 = new DcelVertex();
DcelVertex v1 = new DcelVertex();
DcelVertex v2 = new DcelVertex();
DcelEdge e0 = new DcelEdge();
DcelEdge e1 = new DcelEdge();
DcelEdge e2 = new DcelEdge();
DcelFace f = new DcelFace();
// Link features
v0.Edge = e0;
e0.Origin = v0;
mesh.Vertex = v0;
Assert.AreEqual(1, mesh.Vertices.Count);
Assert.AreEqual(1, mesh.Edges.Count);
Assert.AreEqual(0, mesh.Faces.Count);
// Link more
e0.Next = e1;
e1.Next = e2;
mesh.Dirty = true;
Assert.AreEqual(3, mesh.Edges.Count);
e1.Origin = v1;
e2.Origin = v2;
mesh.Dirty = true;
Assert.AreEqual(3, mesh.Vertices.Count);
e0.Face = f;
f.Boundary = e1;
mesh.Dirty = true;
Assert.AreEqual(1, mesh.Faces.Count);
}
