[vtkusers] delete vertex from mesh

[rima4]

hi all
  what i'm trying to do is defining points inside et outside an object and i
just want simply  to eliminate those points who are outside, i tried this
code but when t run it it makes a bug:

 
  double pcoords[3], weights[3];
 
  vtkIdType cellId;
  int subId;
  cellId = df->GetOutput()->FindCell(E, NULL, 0, .1,subId, pcoords,
weights);
  if (cellId>=0)
    {
    std::cout << "inside" << std::endl;
    }
  else
    {
    std::cout << "outside" << std::endl;
	epol->DeleteCell(cellId);
	  }
}



can someone help me please?

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