void TestInplaneSameVertex()
{
TopoModel model = new TopoModel();
TopoVertex v1 = model.addVertex(new RHVector3(0, 0, 0));
TopoVertex v2 = model.addVertex(new RHVector3(10, 0, 0));
TopoVertex v3 = model.addVertex(new RHVector3(10, 10, 0));
TopoVertex v4 = model.addVertex(new RHVector3(10, -1, 0));
TopoVertex v5 = model.addVertex(new RHVector3(7, 1, 0));
TopoVertex v6 = model.addVertex(new RHVector3(1, -7, 0));
TopoTriangle t1 = model.AddTriangle(new TopoTriangle(model, v1, v2, v3));
TopoTriangle t2 = model.AddTriangle(new TopoTriangle(model, v1, v4, v6));
}
void TestInplaneInsideSameEdgeIntersects()
{
TopoModel model = new TopoModel();
TopoVertex v1 = model.addVertex(new RHVector3(0, 0, 0));
TopoVertex v2 = model.addVertex(new RHVector3(10, 0, 0));
TopoVertex v3 = model.addVertex(new RHVector3(10, 10, 0));
TopoVertex v4 = model.addVertex(new RHVector3(1, 1, 0));
TopoVertex v5 = model.addVertex(new RHVector3(7, 1, 0));
TopoVertex v6 = model.addVertex(new RHVector3(5, 3, 0));
TopoTriangle t1 = model.AddTriangle(new TopoTriangle(model, v1, v2, v3));
TopoTriangle t2 = model.AddTriangle(new TopoTriangle(model, v1, v2, v6));
}
void TestRightAngle()
{
TopoModel model = new TopoModel();
TopoVertex v1 = model.addVertex(new RHVector3(0, 0, 0));
TopoVertex v2 = model.addVertex(new RHVector3(10, 0, 0));
TopoVertex v3 = model.addVertex(new RHVector3(5, 5, 0));
TopoVertex v4 = model.addVertex(new RHVector3(0, 0, -5));
TopoVertex v5 = model.addVertex(new RHVector3(10, 0, -5));
TopoVertex v6 = model.addVertex(new RHVector3(5, 0, 5));
TopoTriangle t1 = model.AddTriangle(new TopoTriangle(model, v1, v2, v3));
TopoTriangle t2 = model.AddTriangle(new TopoTriangle(model, v4, v5, v6));
}
void TestInplaneOutside()
{
TopoModel model = new TopoModel();
TopoVertex v1 = model.addVertex(new RHVector3(0, 0, 0));
TopoVertex v2 = model.addVertex(new RHVector3(10, 0, 0));
TopoVertex v3 = model.addVertex(new RHVector3(10, 10, 0));
TopoVertex v4 = model.addVertex(new RHVector3(11, 1, 0));
TopoVertex v5 = model.addVertex(new RHVector3(17, 1, 0));
TopoVertex v6 = model.addVertex(new RHVector3(11, 7, 0));
TopoTriangle t1 = model.AddTriangle(new TopoTriangle(model, v1, v2, v3));
TopoTriangle t2 = model.AddTriangle(new TopoTriangle(model, v4, v5, v6));
}
void TestInplane3D_1()
{
TopoModel model = new TopoModel();
TopoVertex v1 = model.addVertex(new RHVector3(3.67848944664001, -2.6547646522522, 1.38814495312454E-14));
TopoVertex v2 = model.addVertex(new RHVector3(1.62981510162354, -1.05116808414459, 1.83297828141877E-14));
TopoVertex v3 = model.addVertex(new RHVector3(2.29873323440552, -0.79055267572403, 2.11497486191092E-14));
TopoVertex v4 = model.addVertex(new RHVector3(1.63205575942993, -1.05116808414459, 2.78849697113037));
TopoVertex v5 = model.addVertex(new RHVector3(0.916237592697144, -1.1297744512558, 1.83297828141877E-14));
TopoVertex v6 = model.addVertex(new RHVector3(1.38571500778198, -1.07829427719116, 2.67316389083862));
TopoTriangle t1 = model.AddTriangle(new TopoTriangle(model, v1, v2, v3));
TopoTriangle t2 = model.AddTriangle(new TopoTriangle(model, v4, v5, v6));
}
void TestInplaneOutside()
{
TopoModel model = new TopoModel();
TopoVertex v1 = model.addVertex(new RHVector3(0, 0, 0));
TopoVertex v2 = model.addVertex(new RHVector3(10, 0, 0));
TopoVertex v3 = model.addVertex(new RHVector3(10, 10, 0));
TopoVertex v4 = model.addVertex(new RHVector3(11, 1, 0));
TopoVertex v5 = model.addVertex(new RHVector3(17, 1, 0));
TopoVertex v6 = model.addVertex(new RHVector3(11, 7, 0));
TopoTriangle t1 = model.AddTriangle(new TopoTriangle(model, v1, v2, v3));
TopoTriangle t2 = model.AddTriangle(new TopoTriangle(model, v4, v5, v6));
if (t1.Intersects(t2))
{
faildTests++;
Console.WriteLine("Failed test:TestInplaneOutside");
}
}
void TestSharedPointIntersect()
{
TopoModel model = new TopoModel();
TopoVertex v1 = model.addVertex(new RHVector3(0, 0, 0));
TopoVertex v2 = model.addVertex(new RHVector3(10, 0, 0));
TopoVertex v3 = model.addVertex(new RHVector3(5, 5, 0));
TopoVertex v4 = model.addVertex(new RHVector3(0, 0, -5));
TopoVertex v5 = model.addVertex(new RHVector3(10, 0, -5));
TopoVertex v6 = model.addVertex(new RHVector3(5, 0, 5));
TopoTriangle t1 = model.AddTriangle(new TopoTriangle(model, v1, v2, v3));
TopoTriangle t2 = model.AddTriangle(new TopoTriangle(model, v1, v5, v6));
if (!t1.Intersects(t2))
{
faildTests++;
Console.WriteLine("Failed test:TestSharedPointIntersect");
}
}
void TestInplaneInsideSameEdgeIntersects()
{
TopoModel model = new TopoModel();
TopoVertex v1 = model.addVertex(new RHVector3(0, 0, 0));
TopoVertex v2 = model.addVertex(new RHVector3(10, 0, 0));
TopoVertex v3 = model.addVertex(new RHVector3(10, 10, 0));
TopoVertex v4 = model.addVertex(new RHVector3(1, 1, 0));
TopoVertex v5 = model.addVertex(new RHVector3(7, 1, 0));
TopoVertex v6 = model.addVertex(new RHVector3(5, 3, 0));
TopoTriangle t1 = model.AddTriangle(new TopoTriangle(model, v1, v2, v3));
TopoTriangle t2 = model.AddTriangle(new TopoTriangle(model, v1, v2, v6));
if (!t1.Intersects(t2))
{
faildTests++;
Console.WriteLine("Failed test:TestInplaneInsideSameEdgeIntersects");
}
}
public TopoTriangle BuildTriangle(TopoModel model)
{
TopoVertex sharedPoint = null;
TopoVertex p1 = null, p2 = null;
if (edgeA.v1 == edgeB.v1)
{
sharedPoint = edgeA.v1;
p1 = edgeA.v2;
p2 = edgeB.v2;
}
else if (edgeA.v1 == edgeB.v2)
{
sharedPoint = edgeA.v1;
p1 = edgeA.v2;
p2 = edgeB.v1;
}
else if (edgeA.v2 == edgeB.v1)
{
sharedPoint = edgeA.v1;
p1 = edgeA.v1;
p2 = edgeB.v2;
}
else if (edgeA.v2 == edgeB.v2)
{
sharedPoint = edgeA.v2;
p1 = edgeA.v1;
p2 = edgeB.v1;
}
TopoTriangle faceA = edgeA.faces.First.Value;
TopoTriangle newTriangle = new TopoTriangle(model, sharedPoint, p1, p2, 0, 0, 1);
if (newTriangle.SameNormalOrientation(faceA) == false)
{
newTriangle.FlipDirection();
}
newTriangle.RecomputeNormal();
model.AddTriangle(newTriangle);
return(newTriangle);
}
/// <summary>
/// Splits an edge and changes the connected triangles to maintain
/// a topological correct system.
/// </summary>
/// <param name="model"></param>
/// <param name="vertex"></param>
public void InsertVertex(TopoModel model, TopoVertex vertex)
{
LinkedList <TopoTriangle> delList = new LinkedList <TopoTriangle>();
LinkedList <TopoTriangle> testFaces = new LinkedList <TopoTriangle>();
foreach (TopoTriangle oldTriangle in faces)
{
testFaces.AddLast(oldTriangle);
}
foreach (TopoTriangle oldTriangle in testFaces)
{
delList.AddLast(oldTriangle);
for (int i = 0; i < 3; i++)
{
if (oldTriangle.vertices[i] != v1 && oldTriangle.vertices[i] != v2)
{
TopoTriangle newTriangle = new TopoTriangle(model, v1, vertex, oldTriangle.vertices[i]);
if (newTriangle.IsDegenerated())
{
newTriangle.Unlink(model);
}
else
{
// Test orientation
for (int e = 0; e < 3; e++)
{
TopoTriangle neigbour = newTriangle.edges[i].GetFaceExcept(newTriangle);
if (neigbour != null)
{
if (!newTriangle.SameNormalOrientation(neigbour))
{
newTriangle.FlipDirection();
}
break;
}
}
model.AddTriangle(newTriangle);
}
newTriangle = new TopoTriangle(model, vertex, v2, oldTriangle.vertices[i]);
if (newTriangle.IsDegenerated())
{
newTriangle.Unlink(model);
}
else
{
// Test orientation
for (int e = 0; e < 3; e++)
{
TopoTriangle neigbour = newTriangle.edges[i].GetFaceExcept(newTriangle);
if (neigbour != null)
{
if (!newTriangle.SameNormalOrientation(neigbour))
{
newTriangle.FlipDirection();
}
break;
}
}
model.AddTriangle(newTriangle);
}
}
}
}
foreach (TopoTriangle tri in delList)
{
tri.Unlink(model);
model.removeTriangle(tri);
}
}
