public void ContainsPoint()
{
Polygon2f polygon = CreatePolygon2.FromBox(new Vector2f(-2), new Vector2f(2));
Polygon2f hole = CreatePolygon2.FromBox(new Vector2f(-1), new Vector2f(1));
hole.MakeCW();
polygon.AddHole(hole);
PolygonIntersection2.PushPolygon(polygon);
//in polygon
Assert.IsTrue(PolygonIntersection2.ContainsPoint(new Vector2f(1.5f, 1.5f)));
Assert.IsTrue(PolygonIntersection2.ContainsPoint(new Vector2f(1.5f, -1.5f)));
Assert.IsTrue(PolygonIntersection2.ContainsPoint(new Vector2f(-1.5f, 1.5f)));
Assert.IsTrue(PolygonIntersection2.ContainsPoint(new Vector2f(-1.5f, -1.5f)));
//in hole
Assert.IsFalse(PolygonIntersection2.ContainsPoint(new Vector2f(0, 0)));
//on polygon boundary
Assert.IsFalse(PolygonIntersection2.ContainsPoint(new Vector2f(2, 2)));
Assert.IsFalse(PolygonIntersection2.ContainsPoint(new Vector2f(2, -2)));
Assert.IsFalse(PolygonIntersection2.ContainsPoint(new Vector2f(-2, 2)));
Assert.IsFalse(PolygonIntersection2.ContainsPoint(new Vector2f(-2, -2)));
//on hole boundary
Assert.IsFalse(PolygonIntersection2.ContainsPoint(new Vector2f(1, 1)));
Assert.IsFalse(PolygonIntersection2.ContainsPoint(new Vector2f(1, -1)));
Assert.IsFalse(PolygonIntersection2.ContainsPoint(new Vector2f(-1, 1)));
Assert.IsFalse(PolygonIntersection2.ContainsPoint(new Vector2f(-1, -1)));
PolygonIntersection2.PopPolygon();
}
public void SymmetricDifference()
{
Polygon2f A = CreatePolygon2.FromBox(new Vector2f(-1), new Vector2f(1));
Polygon2f B = CreatePolygon2.FromBox(new Vector2f(0), new Vector2f(2));
List <Polygon2f> list;
PolygonBoolean2.SymmetricDifference(A, B, out list);
Assert.AreEqual(1, list.Count);
Assert.AreEqual(1, list[0].HoleCount);
Assert.AreEqual(6, list[0].Area);
}
public void Intersection()
{
Polygon2f A = CreatePolygon2.FromBox(new Vector2f(-1), new Vector2f(1));
Polygon2f B = CreatePolygon2.FromBox(new Vector2f(0), new Vector2f(2));
List <Polygon2f> list;
PolygonBoolean2.Intersection(A, B, out list);
Assert.AreEqual(1, list.Count);
Assert.AreEqual(0, list[0].HoleCount);
Assert.AreEqual(1, list[0].Area);
}
public void CreateInteriorSkeleton()
{
Polygon2f polygon = CreatePolygon2.FromBox(new Vector2f(-1), new Vector2f(1));
var constructor = new HBMeshConstructor <HBVertex2f, HBEdge, HBFace>();
PolygonSkeleton2.CreateInteriorSkeleton(polygon, constructor);
var mesh = constructor.PopMesh();
Assert.AreEqual(5, mesh.Vertices.Count);
Assert.AreEqual(8, mesh.Edges.Count);
Assert.AreEqual(0, mesh.Faces.Count);
}
public void DoIntersect()
{
Polygon2f A = CreatePolygon2.FromBox(new Vector2f(-1), new Vector2f(1));
Polygon2f B = CreatePolygon2.FromBox(new Vector2f(0), new Vector2f(2));
Polygon2f C = CreatePolygon2.FromBox(new Vector2f(-1, 1), new Vector2f(1, 3));
Polygon2f D = CreatePolygon2.FromBox(new Vector2f(-3, -1), new Vector2f(-2, 1));
//Intersect
Assert.IsTrue(PolygonBoolean2.DoIntersect(A, B));
//Edge case
Assert.IsFalse(PolygonBoolean2.DoIntersect(A, C));
//Dont intersect
Assert.IsFalse(PolygonBoolean2.DoIntersect(A, D));
}
public void Triangulate()
{
Polygon2f polygon = CreatePolygon2.FromBox(new Vector2f(-1), new Vector2f(1));
Mesh2f mesh = ConstraintedTriangulation2.Triangulate(polygon);
Assert.AreEqual(4, mesh.VerticesCount);
Assert.AreEqual(6, mesh.IndicesCount);
for (int i = 0; i < mesh.IndicesCount / 3; i++)
{
Vector2f a = mesh.Positions[mesh.Indices[i * 3 + 0]];
Vector2f b = mesh.Positions[mesh.Indices[i * 3 + 1]];
Vector2f c = mesh.Positions[mesh.Indices[i * 3 + 2]];
Triangle2f tri = new Triangle2f(a, b, c);
Assert.IsTrue(tri.SignedArea > 0);
}
}
protected virtual void Update()
{
if (Input.GetKeyDown(KeyCode.F1))
{
ResetInput();
MadePolygon = true;
OnPolygonComplete(CreatePolygon2.FromBox(new Vector2f(-1), new Vector2f(1)));
}
else if (Input.GetKeyDown(KeyCode.F2))
{
ResetInput();
Polygon2f box = CreatePolygon2.FromBox(new Vector2f(-1), new Vector2f(1));
Polygon2f hole = CreatePolygon2.FromBox(new Vector2f(-0.5f), new Vector2f(0.5f));
hole.MakeCW();
box.AddHole(hole);
MadePolygon = true;
OnPolygonComplete(box);
}
else if (Input.GetKeyDown(KeyCode.F3))
{
ResetInput();
Polygon2f circle = CreatePolygon2.FromCircle(new Vector2f(-1), 1, 16);
MadePolygon = true;
OnPolygonComplete(circle);
}
else if (Input.GetKeyDown(KeyCode.F4))
{
ResetInput();
Polygon2f circle = CreatePolygon2.FromCircle(new Vector2f(0), 1, 16);
Polygon2f hole = CreatePolygon2.FromCircle(new Vector2f(0), 0.5f, 16);
hole.MakeCW();
circle.AddHole(hole);
MadePolygon = true;
OnPolygonComplete(circle);
}
else if (Input.GetKeyDown(KeyCode.F5))
{
ResetInput();
Polygon2f capsule = CreatePolygon2.FromCapsule(new Vector2f(0), 1, 1, 16);
MadePolygon = true;
OnPolygonComplete(capsule);
}
else if (Input.GetKeyDown(KeyCode.F6))
{
ResetInput();
Polygon2f cathedral = CreatePolygon2.FromCapsule(new Vector2f(0), 1, 1, 16);
for (float x = -0.5f; x <= 0.5f; x += 1.0f)
{
for (float y = -0.75f; y <= 0.75f; y += 0.5f)
{
Polygon2f pillar = CreatePolygon2.FromCircle(new Vector2f(x, y), 0.1f, 16);
pillar.MakeCW();
cathedral.AddHole(pillar);
}
}
MadePolygon = true;
OnPolygonComplete(cathedral);
}
else
{
bool leftMouseClicked = Input.GetMouseButtonDown(0);
if (leftMouseClicked)
{
Vector2f point = GetMousePosition();
OnLeftClick(point);
}
if (Input.GetKeyDown(KeyCode.Space))
{
ResetInput();
OnPolygonCleared();
}
else if (!MadePolygon)
{
Vector2f point = GetMousePosition();
point = SnapToPolygon(point);
if (leftMouseClicked)
{
if (Points == null)
{
CreatePoints();
AddPoint(point);
AddPoint(point);
}
else
{
if (PolygonClosed())
{
ClosePolygon();
MadePolygon = true;
OnPolygonComplete(new Polygon2f(Points.ToArray()));
}
else
{
AddPoint(point);
}
}
}
else
{
MoveLastPoint(point);
}
}
}
}