public void Split(Vector3 P0, Vector3 n, NewPointsGetter newPoints, Shape2 shapeAbove, Shape2 shapeBelow)
{
if (Point2.PointsBridgePlane(EdgeP1, EdgeP2))
{
Vector3 x;
Utils.LinePlaneIntersect(n, P0, EdgeP1.Point, EdgeP2.Point, out x);
SplitInHalf(x, newPoints, shapeAbove, shapeBelow);
}
else if (Point2.BothAbove(EdgeP1, EdgeP2))
{
shapeAbove.Edges.Add(this);
}
else if (Point2.BothBelow(EdgeP1, EdgeP2))
{
shapeBelow.Edges.Add(this);
}
else if (Point2.BothInside(EdgeP1, EdgeP2))
{
// do nothing - new edges for each shape will be created by the face split
}
else
{
SplitAtEnd(newPoints, shapeAbove, shapeBelow);
}
}