public void test_triangle3d_whichside_tri()
{
Triangle3d t = new Triangle3d(new xyz(0, 0, 0), new xyz(5, 0, 0), new xyz(5, 5, 0));
Assert.AreEqual(WhichSideOfPlane.Coplanar, t.Classify(t));
Assert.AreEqual(WhichSideOfPlane.Inside, t.Classify(new Triangle3d(new xyz(0, 0, 0), new xyz(5, 0, 0), new xyz(5, 0, -2))));
Assert.AreEqual(WhichSideOfPlane.Outside, t.Classify(new Triangle3d(new xyz(0, 0, 0), new xyz(5, 0, 0), new xyz(5, 0, 2))));
Assert.AreEqual(WhichSideOfPlane.Split, t.Classify(new Triangle3d(new xyz(0, 0, -1), new xyz(5, 0, -1), new xyz(5, 0, 2))));
}
public PointInPoly PointInPolyhedron(xyz p)
{
WhichSideOfPlane sid = tri.Classify(p);
Debug.Assert(
(sid == WhichSideOfPlane.Inside) ||
(sid == WhichSideOfPlane.Outside) ||
(sid == WhichSideOfPlane.Coplanar)
);
if (sid == WhichSideOfPlane.Inside)
{
if (inside != null)
{
return(inside.PointInPolyhedron(p));
}
else
{
return(PointInPoly.Inside);
}
}
else if (sid == WhichSideOfPlane.Outside)
{
if (outside != null)
{
return(outside.PointInPolyhedron(p));
}
else
{
return(PointInPoly.Outside);
}
}
else
{
// coplanar
if (tri.PointInside(p))
{
return(PointInPoly.Coincident);
}
if (coincident != null)
{
foreach (Triangle3d tc in coincident)
{
if (tc.PointInside(p))
{
return(PointInPoly.Coincident);
}
}
}
if (inside != null)
{
return(inside.PointInPolyhedron(p));
}
else // if (outside != null)
{
Debug.Assert(outside != null);
return(outside.PointInPolyhedron(p));
}
public void test_triangle3d_whichside()
{
Triangle3d t = new Triangle3d(new xyz(0, 0, 0), new xyz(5, 0, 0), new xyz(5, 5, 0));
Assert.AreEqual(WhichSideOfPlane.Coplanar, t.Classify(new xyz(0, 0, 0)));
Assert.AreEqual(WhichSideOfPlane.Coplanar, t.Classify(new xyz(5, 0, 0)));
Assert.AreEqual(WhichSideOfPlane.Coplanar, t.Classify(new xyz(5, 5, 0)));
Assert.AreEqual(WhichSideOfPlane.Coplanar, t.Classify(new xyz(3, 0, 0)));
Assert.AreEqual(WhichSideOfPlane.Coplanar, t.Classify(new xyz(5, 3, 0)));
Assert.AreEqual(WhichSideOfPlane.Coplanar, t.Classify(new xyz(3, 3, 0)));
Assert.AreEqual(WhichSideOfPlane.Coplanar, t.Classify(new xyz(4, 1, 0)));
Assert.AreEqual(WhichSideOfPlane.Coplanar, t.Classify(new xyz(2, 1, 0)));
Assert.AreEqual(WhichSideOfPlane.Coplanar, t.Classify(new xyz(3, 2, 0)));
Assert.AreEqual(WhichSideOfPlane.Coplanar, t.Classify(new xyz(7, 7, 0)));
Assert.AreEqual(WhichSideOfPlane.Coplanar, t.Classify(new xyz(5, 6, 0)));
Assert.AreEqual(WhichSideOfPlane.Coplanar, t.Classify(new xyz(0, 9, 0)));
Assert.AreEqual(WhichSideOfPlane.Coplanar, t.Classify(new xyz(-1, -1, 0)));
Assert.AreEqual(WhichSideOfPlane.Outside, t.Classify(new xyz(4, 1, 1)));
Assert.AreEqual(WhichSideOfPlane.Outside, t.Classify(new xyz(0, 0, 1)));
Assert.AreEqual(WhichSideOfPlane.Outside, t.Classify(new xyz(9, 9, 1)));
Assert.AreEqual(WhichSideOfPlane.Inside, t.Classify(new xyz(3, 1, -1)));
}
