Champ_Fonc_Tabule.cpp

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#include <Champ_Fonc_Tabule.h>
#include <Champ_Uniforme.h>
#include <algorithm>
#include <string>
 
Implemente_instanciable(Champ_Fonc_Tabule,"Champ_Fonc_Tabule",Champ_Fonc_base);
// XD champ_fonc_tabule champ_don_base champ_fonc_tabule NO_BRACE Field that is tabulated as a function of another
// XD_CONT field.
// XD attr pb_field bloc_lecture pb_field REQ block similar to { pb1 field1 } or { pb1 field1 ... pbN fieldN }
// XD attr dim entier dim REQ Number of field components.
// XD attr bloc bloc_lecture bloc REQ Values (the table (the value of the field at any time is calculated by linear
// XD_CONT interpolation from this table) or the analytical expression (with keyword expression to use an analytical
// XD_CONT expression)).
 
void Champ_Fonc_Tabule::Warn_old_chp_fonc_syntax_V_184(const char *nom_class, const Nom& val1, const Nom& val2)
{
  bool isNum = Check_if_int(val1);
  if (isNum)
    {
      Cerr << "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!" << finl;
      Cerr << "Error: you are using an obsolete syntax for the keyword " << nom_class << " :" << finl;
      Cerr << "Your should specify the problem name first instead of " << val1 << finl;
      Cerr << "New syntax is: " << nom_class << " problem_name field_name ncomp expression" << finl;
      Process::exit();
    }
  isNum = Check_if_int(val2);
  if (isNum)
    {
      Cerr << "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!" << finl;
      Cerr << "Error: you are using an obsolete syntax for the keyword " << nom_class << " :" << finl;
      Cerr << "Your should specify the field name instead of " << val2 << finl;
      Cerr << "New syntax is: " << nom_class << " problem_name field_name ncomp expression" << finl;
      Process::exit();
    }
}
 
bool Champ_Fonc_Tabule::Check_if_int(const Nom& val)
{
  std::string s((const char*) val);
  // lambda checking whehter a char is not a digit:
  auto checkNotDig = [](unsigned char c)
  { return !std::isdigit(c);};
  return (!s.empty() && std::find_if(s.begin(), s.end(), checkNotDig) == s.end());
}
 
Sortie& Champ_Fonc_Tabule::printOn(Sortie& os) const
{
  return os;
}
 
/*! @brief Lecture du Champ a partir d'un flot d'entree, (On ne sait traiter que les champs scalaires.
 *
 * )
 *      exemple:
 *      Champ_Fonc_Tabule { probleme ch }
 *      1 (nombre de composantes)
 *      {
 *      2
 *      0 500 0 250  (ch(0)=0 && ch(500)=250
 *      }
 *
 * @param (Entree& is) un flot d'entree
 * @return (Entree&) le flot d'entree modifie
 * @throws accolade fermante attendue
 * @throws accolade ouvrante attendue
 */
Entree& Champ_Fonc_Tabule::readOn(Entree& is)
{
  int nbcomp;
  Nom motlu;
  const Motcle accolade_ouverte("{"), accolade_fermee("}");
  is >> motlu;
  if (motlu != accolade_ouverte)
    {
      Cerr << "You are using an old syntaxe, you should now use:"<< finl;
      Cerr << "Champ_Fonc_Tabule { problem_name field_name } ncomp { table }" << finl;
      exit();
    }
  else
    {
      while (true)
        {
          is >> motlu;
          if (motlu == "}")
            break;
          noms_pbs_.add(motlu);
          is >> motlu;
          noms_champs_parametre_.add(motlu);
        }
    }
  const int nb_param = noms_champs_parametre_.size();
 
  is >> nbcomp;
  fixer_nb_comp(nbcomp);
  is >> motlu;
  if (motlu == accolade_ouverte)
    {
      /* 1. lecture de la grille de parametres */
      DoubleVects params;
      for (int n = 0; n < nb_param; n++)
        {
          const int nb_val = lire_dimension(is, que_suis_je());
          DoubleVect param(nb_val);
          for (int i = 0; i < nb_val; i++)
            is >> param[i];
          params.add(param);
        }
 
      /* 2. lecture des valeurs des parametres */
      // taille totale du tableau de valeurs
      int size = nbcomp;
      for (int n = 0; n < nb_param; n++)
        size *= params[n].size();
 
      // lecture : tout dans un tableau 1D
      DoubleVect tab_valeurs(size);
      for (int i = 0; i < size; i++)
        is >> tab_valeurs[i];
      la_table.remplir(params, tab_valeurs);
 
      is >> motlu;
      if (motlu != accolade_fermee)
        {
          Cerr << "Error reading from an object of type Champ_Fonc_Tabule" << finl;
          Cerr << "We expected keyword } instead of " << motlu << finl;
          exit();
        }
    }
  else if (motlu == "fonction")
    {
      Cerr << "The syntax has changed..." << finl;
      Cerr << "The syntax is now Champ_Fonc_fonction problem field 1 field_expression" << finl;
      exit();
    }
  else
    {
      Cerr << "Error reading from an object of type Champ_Fonc_Tabule" << finl;
      Cerr << "We expected keyword { or fonction instead of " << motlu << finl;
      exit();
    }
  return is;
}
 
Champ_base& Champ_Fonc_Tabule::affecter_(const Champ_base& ch)
{
  if (!le_champ_tabule_dis)
    Cerr << le_nom() << "type : " << que_suis_je() << " can not be assigned to " << ch.le_nom() << " because " << le_nom() << " is incomplete " << finl;
  else
    {
      if (sub_type(Champ_Uniforme, ch))
        valeurs() = ch.valeurs()(0, 0);
      else
        valeurs() = ch.valeurs();
    }
  return *this;
}