public void IsClosed()
{
var f0 = new HBFace();
var v0 = new HBVertex();
var v1 = new HBVertex();
var v2 = new HBVertex();
var e0 = new HBEdge();
var e1 = new HBEdge();
var e2 = new HBEdge();
Assert.AreEqual(0, f0.EdgeCount);
f0.Edge = e0;
v0.Edge = e0;
v1.Edge = e1;
v2.Edge = e2;
e0.Set(v0, f0, null, null, null);
Assert.IsFalse(e0.IsClosed);
e0.Next = e1;
e1.Set(v0, f0, e0, null, null);
Assert.IsFalse(e0.IsClosed);
e1.Next = e2;
e2.Set(v0, f0, e1, e0, null);
Assert.IsTrue(e0.IsClosed);
}
public void EdgeCount()
{
var f0 = new HBFace();
var v0 = new HBVertex();
var v1 = new HBVertex();
var v2 = new HBVertex();
var e0 = new HBEdge();
var e1 = new HBEdge();
var e2 = new HBEdge();
Assert.AreEqual(0, f0.EdgeCount);
f0.Edge = e0;
v0.Edge = e0;
v1.Edge = e1;
v2.Edge = e2;
e0.Set(v0, f0, null, null, null);
Assert.AreEqual(1, e0.EdgeCount);
e0.Next = e1;
e1.Set(v0, f0, e0, null, null);
Assert.AreEqual(2, e0.EdgeCount);
e1.Next = e2;
e2.Set(v0, f0, e1, e0, null);
Assert.AreEqual(3, e0.EdgeCount);
}
public void InsertEdge()
{
HBVertex v0 = new HBVertex();
HBEdge e0 = new HBEdge();
HBEdge e1 = new HBEdge();
HBEdge e2 = new HBEdge();
HBEdge e3 = new HBEdge();
HBEdge e4 = new HBEdge();
HBEdge e5 = new HBEdge();
e0.Opposite = e1;
e1.Opposite = e0;
e2.Opposite = e3;
e3.Opposite = e2;
e4.Opposite = e5;
e5.Opposite = e4;
v0.InsertEdge(e0);
v0.InsertEdge(e2);
v0.InsertEdge(e4);
List <HBEdge> edges = new List <HBEdge>();
foreach (var e in v0.EnumerateEdges(true))
{
edges.Add(e);
}
Assert.AreEqual(edges[0], e0);
Assert.AreEqual(edges[1], e2);
Assert.AreEqual(edges[2], e4);
edges.Clear();
foreach (var e in v0.EnumerateEdges(false))
{
edges.Add(e);
}
Assert.AreEqual(edges[0], e0);
Assert.AreEqual(edges[1], e4);
Assert.AreEqual(edges[2], e2);
}
public void EmptyEnumerateEdges()
{
var edge = new HBEdge();
var edges = new List <HBEdge>();
foreach (var e in edge.EnumerateEdges(true))
{
edges.Add(e);
}
Assert.AreEqual(1, edges.Count);
edge = new HBEdge();
edges = new List <HBEdge>();
foreach (var e in edge.EnumerateEdges(false))
{
edges.Add(e);
}
Assert.AreEqual(1, edges.Count);
}
public void InsertEdgeByAngle()
{
Vector2f offset = new Vector2f(-4, 6);
HBVertex2f v0 = new HBVertex2f(offset + new Vector2f(0, 0));
HBVertex2f v1 = new HBVertex2f(offset + new Vector2f(0, -1));
HBVertex2f v2 = new HBVertex2f(offset + new Vector2f(0, 1));
HBVertex2f v3 = new HBVertex2f(offset + new Vector2f(1, 0));
HBVertex2f v4 = new HBVertex2f(offset + new Vector2f(-1, 0));
HBEdge e0 = new HBEdge();
HBEdge e1 = new HBEdge();
HBEdge e2 = new HBEdge();
HBEdge e3 = new HBEdge();
HBEdge e4 = new HBEdge();
HBEdge e5 = new HBEdge();
HBEdge e6 = new HBEdge();
HBEdge e7 = new HBEdge();
e0.Opposite = e1;
e1.Opposite = e0;
e2.Opposite = e3;
e3.Opposite = e2;
e4.Opposite = e5;
e5.Opposite = e4;
e6.Opposite = e7;
e7.Opposite = e6;
v0.InsertEdgeByAngle(e0);
v1.InsertEdgeByAngle(e1);
v2.InsertEdgeByAngle(e3);
v3.InsertEdgeByAngle(e5);
v4.InsertEdgeByAngle(e7);
Assert.AreEqual(v0.Edge, e0);
Assert.AreEqual(e0.Vertex, v0);
Assert.AreEqual(e0.Opposite, e1);
Assert.AreEqual(e0.Next, null);
Assert.AreEqual(e0.Previous, null);
v0.InsertEdgeByAngle(e2);
Assert.AreEqual(e0.Next, e3);
Assert.AreEqual(e1.Previous, e2);
Assert.AreEqual(e2.Next, e1);
Assert.AreEqual(e3.Previous, e0);
v0.InsertEdgeByAngle(e4);
Assert.AreEqual(e0.Next, e5);
Assert.AreEqual(e1.Previous, e2);
Assert.AreEqual(e4.Next, e3);
Assert.AreEqual(e5.Previous, e0);
Assert.AreEqual(e2.Next, e1);
Assert.AreEqual(e3.Previous, e4);
v0.InsertEdgeByAngle(e6);
Assert.AreEqual(e0.Next, e5);
Assert.AreEqual(e1.Previous, e6);
Assert.AreEqual(e2.Next, e7);
Assert.AreEqual(e3.Previous, e4);
Assert.AreEqual(e6.Next, e1);
Assert.AreEqual(e7.Previous, e2);
}