PrecisionGeom.cpp

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#include <PrecisionGeom.h>
 
Implemente_instanciable(PrecisionGeom,"PrecisionGeom",Interprete);
// XD precisiongeom interprete precisiongeom NO_BRACE Class to change the way floating-point number comparison is done.
// XD_CONT By default, two numbers are equal if their absolute difference is smaller than 1e-10. The keyword is useful
// XD_CONT to modify this value. Moreover, nodes coordinates will be written in .geom files with this same precision.
// XD attr precision floattant precision REQ New value of precision.
 
 
/*! @brief Simple appel a: Interprete::printOn(Sortie&)
 *
 * @param (Sortie& os) un flot de sortie
 * @return (Sortie&) le flot de sortie modifie
 */
Sortie& PrecisionGeom::printOn(Sortie& os) const
{
  return Interprete::printOn(os);
}
 
 
/*! @brief Simple appel a: Interprete::readOn(Entree&)
 *
 * @param (Entree& is) un flot d'entree
 * @return (Entree&) le flot d'entree modifie
 */
Entree& PrecisionGeom::readOn(Entree& is)
{
  return Interprete::readOn(is);
}
 
 
/*! @brief Fonction principale de l'interprete PrecisionGeom Lit la dimension d'espace du probleme.
 *
 * @param (Entree& is) un flot d'entree
 * @return (Entree&) le flot d'entree modifie
 */
Entree& PrecisionGeom::interpreter(Entree& is)
{
  is >> precision_geom;
  Cerr << "It treats a calculation with a precision " << precision_geom << finl;
  if (precision_geom<=0)
    {
      Cerr << "PrecisionGeom must be a strictly positive value." << finl;
      exit();
    }
  double prec=precision_geom;
  int dec=0;
  if(precision_geom<1.0)
    {
      while(prec<1.0)
        {
          prec*=10.0;
          dec++;
        }
    }
  else
    {
      while(prec>1.0)
        {
          prec/=10.0;
          dec++;
        }
    }
 
  format_precision_geom=dec++;
  Cerr << "It deals with a calculation using precision format " << format_precision_geom << finl;
  return is;
}