Parser_Eval.h

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#ifndef Parser_Eval_included
#define Parser_Eval_included
 
#include <TRUSTTabs_forward.h>
#include <TRUSTTabs.h>
#include <Parser_U.h>
 
/*! @brief Classe Parser_Eval Cette classe a pour fonction d evaleur les valeurs prises par une fonction analytique.
 *
 *     La fonction peut dependre de l espace (x, y, z), du temps (t) et d'un champ parametre (val).
 *
 */
class Parser_Eval
{
public :
  inline VECT(Parser_U)& fonction() { return fonction_;  }
  Parser_U& parser(int i) { return fonction_[i]; }
  Parser_U& parser(int i) const { return fonction_[i]; }
 
  // multiple points evaluation - x, y, z
  void eval_fct(const DoubleTab& positions, DoubleTab& val) const { eval_fct_(positions, nullptr, nullptr, val); }
  // multiple points evaluation - x, y, z, t
  void eval_fct(const DoubleTab& positions, const double t, DoubleTab& val) const { eval_fct_(positions, &t, nullptr, val); }
  // multiple points evaluation - x, y, z, t, field
  void eval_fct(const DoubleTab& positions, const double t, const DoubleTab& val_param, DoubleTab& val) const { eval_fct_(positions, &t, &val_param, val); }
  // multiple points evaluation, single component - x, y, z
  void eval_fct(const DoubleTab& positions, DoubleVect& val, const int ncomp) const { eval_fct_single_compo(positions, nullptr, val, ncomp); }
  // multiple points evaluation, single component - x, y, z, t
  void eval_fct(const DoubleTab& positions, const double t, DoubleVect& val, const int ncomp) const { eval_fct_single_compo(positions, &t, val, ncomp); }
  // single point evaluation - x, y, z
  void eval_fct(const DoubleVect& position, DoubleVect& val) const { eval_fct_single_position(position, nullptr, nullptr, val); }
  // single point evaluation - x, y, z, t
  void eval_fct(const DoubleVect& position, const double t, DoubleVect& val) const { eval_fct_single_position(position, &t, nullptr, val); }
 
  // Fonction generale qui depend de plusieurs champs inconnus
  void eval_fct(const DoubleTabs& variables, DoubleTab& val) const;
 
protected:
  mutable VECT(Parser_U) fonction_;
 
private:
  double eval_fct_single_position_single_compo(const DoubleVect& position, const double* t, const double* val_param, const int ncomp) const;
  void eval_fct_single_position(const DoubleVect& position, const double* t, const double* val_param, DoubleVect& val) const;
  void eval_fct_single_compo(const DoubleTab& positions, const double* t, DoubleVect& val, const int ncomp) const;
  void eval_fct_(const DoubleTab& positions, const double* t, const DoubleTab *val_param, DoubleTab& val) const;
};
 
#endif /* Parser_Eval_included */