docs: protected void processIntersectionsRemoveHorizontal()
      {
          for (Iterator<Separator> hit = hsep.iterator(); hit.hasNext(); )
          {
          	Separator hs = hit.next();
              for (Separator vs : vsep)
              {
                  if (hs.intersects(vs))
                  {
                  	hit.remove();
                  	break;
                  }
              }
          }
      }