distances_EF.h

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#ifndef distances_EF_inclus
#define distances_EF_inclus
#include <Domaine_EF.h>
double norm_vit_lp_k(const DoubleTab& vit,int face,int face_b,const Domaine_EF& domaine,ArrOfDouble& val,int is_defilante);
double norm_vit_lp(const ArrOfDouble& vit,int face,const Domaine_EF& domaine,ArrOfDouble& val);
double norm_3D_vit1(const DoubleTab& vit,int fac,int num1,
                    const Domaine_EF& domaine,
                    double& val1,double& val2,double& val3);
double norm_2D_vit1_k(const DoubleTab& vit,int fac,int num1,
                      const Domaine_EF& domaine,
                      double& val1,double& val2);
double norm_3D_vit2(const DoubleTab& vit,int fac,int num1,
                    const Domaine_EF& domaine,
                    double& val1,double& val2,double& val3);
double norm_2D_vit2_k(const DoubleTab& vit,int fac,int num1,
                      const Domaine_EF& domaine,
                      double& val1,double& val2);
double distance_2D(int fac,int elem,const Domaine_EF& domaine);
 
double distance_3D(int fac,int elem,const Domaine_EF& domaine);
double distance_face_elem(int fac,int elem,const Domaine_EF& domaine);
 
// Fonctions inlinees pour optimisation
inline double vitesse_tangentielle(const double& v0,const double& v1,const double& r0,const double& r1)
{
  // On prend fabs car mathematiquement la valeur est >=0
  return sqrt(std::fabs(carre(v0)+carre(v1)-carre(v0*r0+v1*r1)));
}
inline double vitesse_tangentielle(const double& v0,const double& v1,const double& v2,const double& r0,const double& r1,const double& r2)
{
  // On prend fabs car mathematiquement la valeur est >=0
  return sqrt(std::fabs(carre(v0)+carre(v1)+carre(v2)-carre(v0*r0+v1*r1+v2*r2)));
}
 
inline void calcule_r0r1(const DoubleTab& face_normale, int& fac, double& r0, double& r1)
{
  r0=face_normale(fac,0);
  r1=face_normale(fac,1);
  double tmp=1/sqrt(r0*r0+r1*r1);
  r0*=tmp;
  r1*=tmp;
}
 
inline void calcule_r0r1r2(const DoubleTab& face_normale, int& fac, double& r0, double& r1, double& r2)
{
  r0=face_normale(fac,0);
  r1=face_normale(fac,1);
  r2=face_normale(fac,2);
  double tmp=1/sqrt(r0*r0+r1*r1+r2*r2);
  r0*=tmp;
  r1*=tmp;
  r2*=tmp;
}
 
inline double distance_face(int fac,int fac1,const Domaine_EF& domaine)
{
  int dimension=Objet_U::dimension;
  const DoubleTab& xv = domaine.xv();    // centre de gravite des faces
  const DoubleTab& face_normale = domaine.face_normales();
  double r0,r1;
  double x0=xv(fac,0);
  double y0=xv(fac,1);
  double x1=xv(fac1,0);
  double y1=xv(fac1,1);
  if (dimension==3)
    {
      double r2;
      double z0=xv(fac,2);
      double z1=xv(fac1,2);
      calcule_r0r1r2(face_normale,fac,r0,r1,r2);
      return std::fabs(r0*(x1-x0)+r1*(y1-y0)+r2*(z1-z0));
    }
  else
    {
      calcule_r0r1(face_normale,fac,r0,r1);
      return std::fabs(r0*(x1-x0)+r1*(y1-y0));
    }
}
#endif