public void TopIsSolid()
{
int sides = 3;
CsgObject keep = new Cylinder(20, 20, sides);
var keepMesh = CsgToMesh.Convert(keep, true);
CsgObject subtract = new Cylinder(10, 21, sides);
subtract = new SetCenter(subtract, keep.GetCenter());
var subtractMesh = CsgToMesh.Convert(subtract, true);
CsgObject result = keep - subtract;
var resultMesh = CsgToMesh.Convert(result, true);
Assert.AreEqual(0, keepMesh.GetNonManifoldEdges().Count, "All faces should be 2 manifold");
Assert.AreEqual(0, subtractMesh.GetNonManifoldEdges().Count, "All faces should be 2 manifold");
//Assert.AreEqual(0, resultMesh.GetNonManifoldEdges().Count, "All faces of this subtract should be 2 manifold");
}
public void SubtractHasAllFaces()
{
double XOffset = -.4;
CsgObject keep = new Box(10, 10, 10);
var keepMesh = CsgToMesh.Convert(keep, true);
var subtract = new Translate(new Box(10, 10, 10), XOffset, -3, 2);
var subtractMesh = CsgToMesh.Convert(subtract, true);
CsgObject result = keep - subtract;
var resultMesh = CsgToMesh.Convert(result);
//mesh.Save("C:/Temp/TempCsgMesh.stl");
var bottomOfSubtractFaces = resultMesh.Faces.Where((f) =>
AreEqual(f.Normal.Z, 1)
&&
FaceAtHeight(f, -3)
).ToArray();
HashSet <IVertex> allVertices = new HashSet <IVertex>();
foreach (var face in bottomOfSubtractFaces)
{
foreach (var vertex in face.Vertices())
{
if (!allVertices.Contains(vertex))
{
allVertices.Add(vertex);
}
}
}
// back right
Assert.IsTrue(HasPosition(allVertices, new Vector3(4.6, 2, -3)));
// front right
Assert.IsTrue(HasPosition(allVertices, new Vector3(4.6, -5, -3)));
// back left
Assert.IsTrue(HasPosition(allVertices, new Vector3(-5, 2, -3)));
// front left
Assert.IsTrue(HasPosition(allVertices, new Vector3(-5, -5, -3)), "Must have front left corner point");
Assert.AreEqual(0, keepMesh.GetNonManifoldEdges().Count, "All faces should be 2 manifold");
Assert.AreEqual(0, subtractMesh.GetNonManifoldEdges().Count, "All faces should be 2 manifold");
//Assert.AreEqual(0, resultMesh.GetNonManifoldEdges().Count, "All faces of this subtract should be 2 manifold");
}
