Option_DG.cpp

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#include <Option_DG.h>
#include <Motcle.h>
#include <Param.h>
#include <SChaine.h>
 
 
int Option_DG::DEFAULT_ORDER = 1;
std::map<std::string, int> Option_DG::ORDERS = {};
int Option_DG::GRAM_SCHMIDT = 1;
 
Implemente_instanciable(Option_DG,"Option_DG",Interprete);
// XD Option_DG interprete Option_DG BRACE Class for DG options.
 
 
Sortie& Option_DG::printOn(Sortie& os) const { return Interprete::printOn(os); }
 
Entree& Option_DG::readOn(Entree& is) {  return is; }
 
Entree& Option_DG::interpreter(Entree& is)
{
  //int vo=DEFAULT_ORDER+1, po=DEFAULT_ORDER, to=DEFAULT_ORDER; // Default orders for velocity, pressure, and temperature
  int vo=-1, po=-1, to=-1; // Default orders for velocity, pressure, and temperature
 
  Param param(que_suis_je());
  param.ajouter("order",&DEFAULT_ORDER); // XD_ADD_P int
  // XD_CONT global order for the DG unknowns (1 by default)
  param.ajouter("velocity_order",&vo); // XD_ADD_P int
  // XD_CONT optional order for DG velocity unknown
  param.ajouter("pressure_order",&po); // XD_ADD_P int
  // XD_CONT optional order for DG pressure unknown
  param.ajouter("temperature_order",&to); // XD_ADD_P int
  // XD_CONT optional order for DG temperature unknown
  param.ajouter("gram_schmidt",&GRAM_SCHMIDT); // XD_ADD_P int
  // XD_CONT Gram Schmidt orthogonalization (1 by default)
  param.lire_avec_accolades_depuis(is);
 
  if (vo != -1)
    {
      ORDERS["vitesse"] = vo;
      ORDERS["gradient_pression"] = vo;
    }
  if (to != -1)
    ORDERS["temperature"] = to;
  if (po != -1)
    {
      ORDERS["pression"] = po;
      ORDERS["pression_pa"] = po;
      ORDERS["divergence_U"] = po;
    }
 
  return is;
}
 
 
int Option_DG::Get_order_for(const Nom& n)
{
  const std::string& s = n.getString();
  if(ORDERS.count(s))
    return ORDERS.at(s);
  return DEFAULT_ORDER;
}
 
/*! @brief Return the number of columns necessary in the unknown vector for a given
 * method order. For example order 1 and 2D means we deal with the basis {1, X, Y}, so 3 cols.
 * @param order the polynomial order of the DG method
 * @return number of columns (basis functions) for the given order and spatial dimension
 */
int Option_DG::Nb_col_from_order(const int order)
{
  int nb_cols = -1;
  // Order
  if (Objet_U::dimension == 2)
    nb_cols = (order + 1)*(order + 2) / 2;
  else // 3D
    nb_cols = (order + 1)*(order + 2)*(order + 3) / 6;
 
  return nb_cols;
}