#ifndef H_TRUSS_H
#define H_TRUSS_H

# include "ppc_ll.h"

struct node
{
  int n;
  double X;
  double Y;
  double x;
  double y;
  int xfixed;
  int yfixed;
  double fx;
  double fy;
  double rx; 
  double ry;
};

struct link
{
  int n;
  struct node *np1;
  struct node *np2;
  double L;
  double A;
  double E;
  double stress;
};

struct truss
{
  conscell *nodes_list;
  conscell *links_list;
  int nnodes;
  int nlinks;
};

int solve_truss ( struct truss *truss, double h, double tol, int maxevals );

#endif