ing">'r'</span>,<span class="string">'LineWidth'</span>,5)
  plot3([o2(1)-1.5*oo(1) o2(1)+1.5*oo(1) o2(1)+1.5*oo(1) o2(1)-1.5*oo(1) o2(1)-1.5*oo(1)],<span class="keyword">...</span>
    [o2(2)-1.5*oo(2) o2(2)+1.5*oo(2) o2(2)+1.5*oo(2) o2(2)-1.5*oo(2) o2(2)-1.5*oo(2)],<span class="keyword">...</span>
    [o2(3)+0.04 o2(3)+0.04 o2(3)-0.04 o2(3)-0.04 o2(3)+0.04], <span class="string">'r'</span>);
  plot3([-0.5 -0.5],[2 2],o2(3)+[-0.06 0.06],<span class="string">'r'</span>);

  o0 = 3*L-1.5;
  plot3([o3(1)-1.5*