public void OneRing(Pointer<Point> P)
{
if (!Boundary)
{
Pointer<SDFace> face = StartFace;
do
{
P.Increment()[0] = face[0].NextVert(this)[0].P;
face = face[0].NextFace(this);
} while (face != StartFace);
}
else
{
Pointer<SDFace> face = StartFace, f2;
while ((f2 = face[0].NextFace(this)) != null)
face = f2;
P.Increment()[0] = face[0].NextVert(this)[0].P;
do
{
P.Increment()[0] = face[0].PrevVert(this)[0].P;
face = face[0].PrevFace(this);
} while (face != null);
}
}
