public void TestDprev()
{
var triangles = CreateExampleMesh();
Otri t = default;
// Start with the top triangle.
t.tri = triangles[3];
// Start with edge 5 -> 3.
t.orient = 2;
// Make sure we're on the correct edge.
Assert.AreEqual(5, t.Org().ID);
Assert.AreEqual(3, t.Dest().ID);
t.Dprev();
Assert.AreEqual(4, t.Org().ID);
Assert.AreEqual(3, t.Dest().ID);
Assert.AreEqual(1, t.tri.ID);
t.Dprev();
Assert.AreEqual(1, t.Org().ID);
Assert.AreEqual(3, t.Dest().ID);
Assert.AreEqual(0, t.tri.ID);
// Out of mesh.
t.Dprev();
Assert.AreEqual(-1, t.tri.ID);
}
private void InvokePrimitive(string name)
{
if (name == "sym")
{
current.Sym();
}
else if (name == "lnext")
{
current.Lnext();
}
else if (name == "lprev")
{
current.Lprev();
}
else if (name == "onext")
{
current.Onext();
}
else if (name == "oprev")
{
current.Oprev();
}
else if (name == "dnext")
{
current.Dnext();
}
else if (name == "dprev")
{
current.Dprev();
}
else if (name == "rnext")
{
current.Rnext();
}
else if (name == "rprev")
{
current.Rprev();
}
renderControl.Update(current);
topoControlView.SetTriangle(current.Triangle);
}