print_off_file.cpp

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/**
 *\file         print_off_file.cpp
 *
 *\brief        
 *
 *\author       Xianming Chen\n
 *              Computer Science Department\n
 *              University of Utah
 *
 *\date         18 Aug 2006\n
 *              Copyright (c) 2006, University of Utah
 */

#include "print.h"
#include "euler.h"
#include <iostream>
using namespace std;


namespace euler
{

  void solid_t :: print_off_file(std::ostream& os) const
  {
    os << "4OFF\n";
    int nvertices = 0, nfaces = 0;

    for(vertex_t* vtx = vfirst; vtx; vtx=vtx->nxt) nvertices++;
    for(face_t* fac = f; fac; fac=fac->nxt)        nfaces++;
    
    os << nvertices << ' ' << nfaces << ' ' << 0 << endl;

    for(vertex_t* vtx = vfirst; vtx; vtx=vtx->nxt)
      os << vtx->p[0] << '\t' << vtx->p[1] << '\t' << vtx->p[2] << '\t' << vtx->p[3] << "\t #" << vtx->id << endl;

    os << endl << endl;
    
    for(face_t* fac = f; fac; fac=fac->nxt)
    {
      int nvertices = fac->l->total_vertices();
      os << nvertices << '\t';
      edge_t *e = fac->l->e, *e0 = e;
      do
      {
        os << e->v->id << ' ';
      }
      while( (e=e->nxt) != e0 );
      os << endl;
    }
  }
  



}//end namespace euler

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