class ElementShellDof : public ElementShell
{
public:
   ElementShellDof(int _ns1, int _ns2, int _ns3, int _ns4)
   {
      ns1 = _ns1;
      ns2 = _ns2;
      ns3 = _ns3;
      ns4 = _ns4;
   }

   ~ElementShellDof(){}

   void renderElementShellDof()
   {
      renderElementShell();
      int nodes[4], num_nodes = 4;
      nodes[0] = ns1;
      nodes[1] = ns2;
      nodes[2] = ns3;
      nodes[3] = ns4;

      render(NOD, num_nodes, nodes);
   }

public:
   int ns1;
   int ns2;
   int ns3;
   int ns4;
};

class ElementShell
{
};

