//C++ TO C# CONVERTER WARNING: The original C++ declaration of the following method implementation was not found:
public void DeleteFace(int fi)
{
nff--;
for (int i = 1; i <= faces.Get(fi).Face().GetNP(); i++)
{
PointIndex pi = faces.Get(fi).Face().PNum(i);
points[pi].RemoveFace();
if (!points[pi].Valid())
{
delpointl.Append(pi);
}
}
MiniElement2d face = faces.Get(fi).Face();
Point3d p1 = points[face.PNum(1)].P();
Point3d p2 = points[face.PNum(2)].P();
Point3d p3 = points[face.PNum(3)].P();
vol -= 1.0 / 6.0 * (p1.X() + p2.X() + p3.X()) * ((p2.Y() - p1.Y()) * (p3.Z() - p1.Z()) - (p2.Z() - p1.Z()) * (p3.Y() - p1.Y()));
if (face.GetNP() == 4)
{
Point3d p4 = points[face.PNum(4)].P();
vol -= 1.0 / 6.0 * (p1.X() + p3.X() + p4.X()) * ((p3.Y() - p1.Y()) * (p4.Z() - p1.Z()) - (p3.Z() - p1.Z()) * (p4.Y() - p1.Y()));
nff4--;
}
faces.Elem(fi).Invalidate();
}
