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[sara_mahdavi <>]

hi all,
I can extract  all vertexes of facet of  polyhedron  but I don't know to
obtain plan for any facet of polygon ,after normal vector for any facet of
polygon,I read Chapter 23 3D Polyhedral Surfaces , I see Example Computing
Plane Equations but in  this example all plan obtained ,but I need a plan
Corresponding one facet of polyhedron and work by this plan,  
,please help me, thanks

my code for obtain vertexes of one facet of polyhedron is :
Facet_iterator fI;
for (fI=P.facets_begin(); fI != P.facets_end(); fI++)      //p is polyhedron
{
 int faceDeg = fI->facet_degree();
//        fI->plan();                                       // error 
          CGAL_Halfedge_circulator edgecirculator = fI->facet_begin(); 
      for(int i = 0; i < faceDeg ;i++)

      {           std::cout<<edgecirculator->vertex()->point();           
            edgecirculator++;

      }
}

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