Champ_Fonc_Fonction.cpp

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#include <Champ_Fonc_Fonction.h>
#include <EChaine.h>
 
Implemente_instanciable(Champ_Fonc_Fonction,"Champ_Fonc_Fonction",Champ_Fonc_Tabule);
// XD champ_fonc_fonction champ_fonc_tabule champ_fonc_fonction NO_BRACE Field that is a function of another field.
// XD attr dim suppress_param dim OPT del
// XD attr pb_field suppress_param pb_field OPT del
// XD attr bloc suppress_param bloc OPT del
// XD attr problem_name ref_Pb_base problem_name REQ Name of problem.
// XD attr inco chaine inco REQ Name of the field (for example: temperature).
// XD attr expression listchaine expression REQ Number of field components followed by the analytical expression for
// XD_CONT each field component.
 
Sortie& Champ_Fonc_Fonction::printOn(Sortie& os) const { return os; }
 
/*! @brief Read the field from an input stream. (Only scalar fields are handled.)
 *
 *      example:
 *      Champ_Fonc_Fonction problem ch
 *      1 (number of components)
 *      {
 *      2
 *      0 500 0 250  (ch(0)=0 && ch(500)=250
 *      }
 *
 * @param (Entree& is) an input stream
 * @return (Entree&) the modified input stream
 * @throws closing brace expected
 * @throws opening brace expected
 */
Entree& Champ_Fonc_Fonction::readOn(Entree& is)
{
  int nbcomp;
  Nom val1, val2;
  is >> val1;
  is >> val2;
  // fix if user uses the old syntax ..
  Champ_Fonc_Tabule::Warn_old_chp_fonc_syntax_V_184("Champ_Fonc_Fonction", val1, val2);
 
  noms_pbs_.add(val1);
  noms_champs_parametre_.add(val2);
  is >> nbcomp;
  fixer_nb_comp(nbcomp);
  Cerr<<"We read the analytic function "<<finl;
  la_table.lire_f(is, nbcomp);
  return is;
}
Implemente_instanciable_sans_constructeur(Sutherland,"Sutherland",Champ_Fonc_Fonction);
 
Sutherland::Sutherland() : A_(-1.), C_(-1.), Tref_(-1.) { }
 
Sortie& Sutherland::printOn(Sortie& os) const { return os; }
 
Entree& Sutherland::readOn(Entree& is)
{
  Cerr<< "Sutherland::readOn usage { prob A a C c TREF Tref }"<<finl;
  Cerr<<"== Champ_Fonc_Fonction problem_name Temperature 1 a*(c+Tref)/(c+val)*(val/Tref)^1.5"<<finl;
  Motcle accferme="}", accouverte="{", motlu;
  is >> motlu;
  Cerr<<"Reading Sutherland"<<finl;
  if (motlu != accouverte)
    {
      Cerr<<" We expected "<<accouverte<<" instead of "<<motlu<<finl;
      abort();
    }
 
  Motcles les_mots(3);
  {
    les_mots[0] = "A";
    les_mots[1] = "C";
    les_mots[2] = "Tref";
  }
 
  is >> motlu;
  while(motlu != accferme )
    {
      is >> prob_;
      int rang=les_mots.search(motlu);
      switch(rang)
        {
        case 0 :
          is >> A_;
          break;
        case 1 :
          is>> C_;
          break;
        case 2 :
          is>>Tref_;
          break;
        default :
          {
            Cerr<<"A "<<que_suis_je()<<" doesn't have property "<<motlu<<finl;
            Cerr<<"We expected a word in:"<<finl<<les_mots<<finl;
            abort();
          }
        }
      is >> motlu;
    }
  if ((C_==-1)||(A_==-1)||(Tref_==-1))
    {
      Cerr<<"Sutherland object "<<le_nom()<< " is incorrect"<<finl;
      if (C_==-1)
        Cerr<<"You must define C in "<<le_nom()<<finl;
      if (Tref_==-1)
        Cerr<<"You must define Tref in "<<le_nom()<<finl;
      if (A_==-1)
        Cerr<<"You must define A in "<<le_nom()<<finl;
      exit();
    }
 
  lire_expression();
  return is;
}
 
void Sutherland::lire_expression()
{
  // We create a string corresponding to Sutherland
  // i.e. Champ_Fonc_fonction 1 prob temperature A * (Tref+C)/(val+C) * pow(val/Tref,1.5);
  Nom chaine = get_prob();
  chaine += " temperature 1 ";
  Nom nA(A_);
  Nom nT(Tref_);
  Nom nC(C_);
  chaine+=nA;
  chaine+="*(";
  chaine+=nT;
  chaine+="+";
  chaine+=nC;
  chaine+=")/(val+";
  chaine+=nC;
  chaine+=")*(val/";
  chaine+=nT;
  chaine+=")^1.5";
  Cerr<<"Sutherland Ok ? Champ_Fonc_Fonction "<<chaine<<finl;
  EChaine echaine(chaine);
  Champ_Fonc_Fonction::readOn(echaine);
  Cerr<<table().val(2)<<finl;
}