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francois |
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#include "gestionversion.h" |
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#include "mgopt_simp.h" |
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#include "mg_file.h" |
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#include "mg_export.h" |
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#include <string.h> |
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class SIMP_TETRA |
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{ |
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public: |
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FEM_TETRA* tet; |
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double densite; |
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int design; |
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double new_densite; |
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double energie; |
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double denergie; |
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double volume; |
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int maille_niveau; |
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int indice; |
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double distance_ref; |
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double centre[3]; |
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BOITE_3D get_boite_3D(void) |
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{ |
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return tet->get_boite_3D(); |
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}; |
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vector<SIMP_TETRA*> voisin; |
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unsigned long get_id(void) {return tet->get_id();}; |
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double distance(SIMP_TETRA* tet2) |
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{ |
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double dx=centre[0]-tet2->centre[0]; |
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double dy=centre[1]-tet2->centre[1]; |
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double dz=centre[2]-tet2->centre[2]; |
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return sqrt(dx*dx+dy*dy+dz*dz); |
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}; |
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}; |
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MGOPT_SIMP::MGOPT_SIMP():MGOPT() |
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{ |
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params.ajouter("frac",0.3); |
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params.ajouter("coefvoisin",2.5); |
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params.ajouter("nbrniveau",150.); |
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params.ajouter("penal",3.); |
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params.ajouter("densite_min",0.001); |
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params.ajouter("m",0.2); |
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francois |
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params.ajouter("eta",0.5); |
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francois |
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params.ajouter("relaxation",0.); |
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params.ajouter("k",3.0); |
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params.ajouter("iter_max",50.); |
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params.ajouter("critere_convergence",0.5); |
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params.ajouter("seuil",0.8); |
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} |
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MGOPT_SIMP::MGOPT_SIMP(MGOPT_SIMP &mdd):MGOPT(mdd) |
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{ |
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} |
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MGOPT_SIMP::~MGOPT_SIMP() |
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{ |
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} |
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void MGOPT_SIMP::optimisation(FEM_MAILLAGE* fem) |
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{ |
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affiche(" Initialisation"); |
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vector<SIMP_TETRA*> lsttet; |
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double frac=params.get_valeur("frac"); |
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double volume_tot; |
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double volume_design=0; |
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double volume_non_design=0; |
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double unite=fem->get_mg_maillage()->get_mg_geometrie()->get_valeur_unite(); |
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LISTE_FEM_TETRA::iterator it; |
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int ntet=0; |
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for (FEM_TETRA* tet=fem->get_premier_tetra(it);tet!=NULL;tet=fem->get_suivant_tetra(it)) |
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{ |
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SIMP_TETRA* tet2=new SIMP_TETRA; |
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tet2->tet=tet; |
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tet2->tet->change_numero(ntet); |
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ntet++; |
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tet2->centre[0]=0.; |
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tet2->centre[1]=0.; |
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tet2->centre[2]=0.; |
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int nbnoeud=tet->get_nb_fem_noeud(); |
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for (int i=0;i<nbnoeud;i++) |
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{ |
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tet2->centre[0]=tet2->centre[0]+tet->get_fem_noeud(i)->get_x(); |
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tet2->centre[1]=tet2->centre[1]+tet->get_fem_noeud(i)->get_y(); |
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tet2->centre[2]=tet2->centre[2]+tet->get_fem_noeud(i)->get_z(); |
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} |
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tet2->centre[0]=tet2->centre[0]/nbnoeud; |
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tet2->centre[1]=tet2->centre[1]/nbnoeud; |
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tet2->centre[2]=tet2->centre[2]/nbnoeud; |
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int lig,col; |
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double jac[9],uv[3]={1./4.,1./4.,1./4.}; |
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tet2->volume=1./6.*tet->get_jacobien(jac,uv,lig,col,1.0); |
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tet2->distance_ref=params.get_valeur("coefvoisin")*pow(12.*tet2->volume/sqrt(2),1./3.); |
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if (((MG_TETRA*)tet->get_mg_element_maillage())->get_origine()!=IMPOSE) |
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{ |
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tet2->design=1; |
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tet2->densite=frac; |
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volume_design=volume_design+tet2->volume; |
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} |
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else |
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{ |
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tet2->design=0; |
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tet2->densite=1.; |
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volume_non_design=volume_non_design+tet2->volume; |
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} |
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lsttet.insert(lsttet.end(),tet2); |
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} |
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affiche(" Recherche de voisins"); |
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int nbsimptet=lsttet.size(); |
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for (int i=0;i<nbsimptet;i++) |
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{ |
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SIMP_TETRA* tet=lsttet[i]; |
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if (tet->design==0) continue; |
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ajouter_voisin(i,tet,lsttet); |
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} |
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int nbiteration=1; |
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int ok=0; |
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int niveaumax=(int)params.get_valeur("nbrniveau"); |
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double penal=params.get_valeur("penal"); |
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vector<double> Ctotiter; |
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while (ok==0) |
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{ |
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char message[255]; |
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sprintf(message," Iteration %d",nbiteration); |
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affiche(message); |
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vector<FEM_TETRA*> *lstniveau=new vector<FEM_TETRA*>[niveaumax+1]; |
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double densmin = params.get_valeur("densite_min"); |
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for (int i=0;i<nbsimptet;i++) |
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{ |
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SIMP_TETRA* tet=lsttet[i]; |
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tet->maille_niveau=(int)((tet->densite-densmin)*niveaumax/(1.-densmin))+1; |
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if (tet->maille_niveau>niveaumax) tet->maille_niveau=niveaumax; |
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lstniveau[tet->maille_niveau].insert(lstniveau[tet->maille_niveau].end(),tet->tet); |
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} |
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MG_EXPORT exp; |
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exp.aster(fem,nometude,2,"00000001",penal,niveaumax,lstniveau); |
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delete [] lstniveau; |
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affiche(" Calcul aster"); |
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char nomfichiertmp[255]; |
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sprintf(nomfichiertmp,"%s/as_run %s.export 1>aster.log 2>&1",getenv("PATHASTER"),nometude); |
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system(nomfichiertmp); |
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affiche(" Analyse resultat"); |
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recupere_energie(lsttet); |
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double Ctot=0; |
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for (int i=0;i<nbsimptet;i++) |
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{ |
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SIMP_TETRA* tet=lsttet[i]; |
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tet->denergie= -penal*2.*tet->energie/tet->densite; |
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Ctot=Ctot+2.*tet->energie; |
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} |
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Ctotiter.insert(Ctotiter.end(),Ctot); |
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sprintf(message," Compliance %le",Ctot); |
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affiche(message); |
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if (nbiteration!=1) |
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{ |
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int nb=Ctotiter.size(); |
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double c1=Ctotiter[nb-2]; |
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double c2=Ctotiter[nb-1]; |
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double ecart=fabs((c2-c1)/c1)*100.; |
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if (ecart<params.get_valeur("critere_convergence")) ok=1; |
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if (nbiteration>params.get_valeur("iter_max")) ok=1; |
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sprintf(message," Ecart %lf%%",ecart); |
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affiche(message); |
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} |
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// application formule pas encore connue |
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double l1= 1e-8 ; |
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double l2= 1e8; |
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double m=params.get_valeur("m"); |
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francois |
241 |
double eta=params.get_valeur("eta"); |
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francois |
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while ((l2-l1) > 1e-12) |
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{ |
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double lmid = 0.5*(l2+l1); |
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double critere_densite = 0.0; |
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for (int i=0;i<nbsimptet;i++) |
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{ |
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SIMP_TETRA* tet=lsttet[i]; |
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if (tet->design==1) |
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{ |
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double x1 = tet->densite+m; |
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francois |
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double beta=-tet->denergie/lmid/tet->volume; |
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double x2 = tet->densite*pow(beta,eta); |
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double x3 = min(x1,x2); |
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double x4 = 1.; |
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double x5 = min(x3,x4); |
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double x6 = tet->densite-m; |
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double x7 = max(x5,x6); |
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double x8 = densmin; |
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francois |
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tet->new_densite = max(x7,x8); |
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} |
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else |
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{ |
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tet->new_densite=1.; |
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} |
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critere_densite = critere_densite + tet->new_densite*tet->volume; |
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} |
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if (critere_densite - (frac*volume_design + volume_non_design) > 0) |
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l1=lmid; |
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else |
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l2=lmid; |
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} |
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// lissage |
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double k=params.get_valeur("k"); |
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for (int i=0;i<nbsimptet;i++) |
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{ |
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SIMP_TETRA* tet=lsttet[i]; |
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if (tet->design == 0) |
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{ |
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tet->densite = 1.; |
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} |
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else |
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{ |
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double somme_Hv_fois_densite = 0.; |
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double somme_Hv = 0.; |
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if ((int)params.get_valeur("relaxation")==1) |
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{ |
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somme_Hv_fois_densite = tet->volume*pow(tet->distance_ref,k)*tet->new_densite; |
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somme_Hv = tet->volume*pow(tet->distance_ref,k); |
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} |
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int nbvoisin=tet->voisin.size(); |
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for (int j = 0 ; j<nbvoisin ; j++) |
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{ |
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SIMP_TETRA* tet2=tet->voisin[j]; |
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if (tet2->design == 1) |
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{ |
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double m_distance=tet->distance(tet2); |
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double Hv =fabs(tet2->volume*pow(tet->distance_ref - m_distance,k)); |
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somme_Hv_fois_densite = somme_Hv_fois_densite + Hv*tet2->new_densite; |
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somme_Hv = somme_Hv + Hv; |
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} |
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} |
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tet->densite = somme_Hv_fois_densite/somme_Hv; |
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tet->densite=max(densmin,tet->densite); |
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} |
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} |
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nbiteration++; |
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} |
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char message[255]; |
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sprintf(message,"%s.compliance",nometude); |
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FILE *out=fopen(message,"wt"); |
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for (int i=0;i<Ctotiter.size();i++) |
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fprintf(out,"%le\n",Ctotiter[i]); |
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affiche(" Ecriture des donnees finales"); |
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LISTE_FEM_NOEUD::iterator itnoeud; |
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int nbfemnoeud=fem->get_nb_fem_noeud(); |
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double *nume=new double[nbfemnoeud]; |
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double *deno=new double[nbfemnoeud]; |
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int cpt=0; |
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for (FEM_NOEUD *nd=fem->get_premier_noeud(itnoeud);nd!=NULL;nd=fem->get_suivant_noeud(itnoeud)) |
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{ |
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nd->change_numero(cpt); |
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nume[cpt]=0.; |
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deno[cpt]=0.; |
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cpt++; |
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} |
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double seuil=params.get_valeur("seuil"); |
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sprintf(message,"%s_densite1.sol",nometude); |
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francois |
241 |
int nbsolution=gestd->get_nb_fem_solution(); |
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for (int i=0;i<nbsolution;i++) |
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gestd->supprimer_fem_solution(i); |
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francois |
239 |
FEM_SOLUTION* solution=new FEM_SOLUTION(fem,1,message,fem->get_nb_fem_tetra(),"Optimisation",ENTITE_TETRA); |
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gestd->ajouter_fem_solution(solution); |
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solution->change_legende(0,"Densite"); |
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for (int i=0;i<nbsimptet;i++) |
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{ |
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SIMP_TETRA* tet=lsttet[i]; |
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if (tet->design==1) |
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if (tet->densite>seuil) |
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((MG_TETRA*)tet->tet->get_mg_element_maillage())->change_origine(OPTIMISE); |
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else |
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((MG_TETRA*)tet->tet->get_mg_element_maillage())->change_origine(MAILLEUR_AUTO); |
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solution->ecrire(i,0,tet->densite); |
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for (int j=0;j<tet->tet->get_nb_fem_noeud();j++) |
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{ |
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FEM_NOEUD* noeud=tet->tet->get_fem_noeud(j); |
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nume[noeud->get_numero()]=nume[noeud->get_numero()]+tet->volume*tet->densite; |
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deno[noeud->get_numero()]=deno[noeud->get_numero()]+tet->volume; |
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} |
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} |
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sprintf(message,"%s_densite2.sol",nometude); |
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FEM_SOLUTION* solution2=new FEM_SOLUTION(fem,1,message,fem->get_nb_fem_noeud(),"Optimisation",ENTITE_NOEUD); |
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gestd->ajouter_fem_solution(solution2); |
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solution2->change_legende(0,"Densite"); |
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cpt=0; |
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for (FEM_NOEUD *nd=fem->get_premier_noeud(itnoeud);nd!=NULL;nd=fem->get_suivant_noeud(itnoeud)) |
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{ |
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solution2->ecrire(cpt,0,nume[cpt]/deno[cpt]); |
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cpt++; |
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} |
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delete [] deno; |
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delete [] nume; |
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int nb=lsttet.size(); |
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for (int i=0;i<nb;i++) delete lsttet[i]; |
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} |
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francois |
240 |
void MGOPT_SIMP::adapte_resultat(char *nomgestd,char *nomparam) |
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{ |
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if (nomparam!=NULL) lire_params(nomparam); |
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affiche(""); |
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affiche("*************************"); |
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affiche("Optimisation de topologie"); |
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affiche("*************************"); |
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affiche(""); |
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affiche(""); |
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affiche("Changement du seuil dans les resultats"); |
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double seuil=params.get_valeur("seuil"); |
| 322 |
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gestd=new MG_FILE(nomgestd); |
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FEM_MAILLAGE* fem=gestd->get_fem_maillage(0); |
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FEM_SOLUTION* solution=gestd->get_fem_solution(0); |
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solution->active_solution(0); |
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LISTE_FEM_TETRA::iterator it; |
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for (FEM_TETRA *tet=fem->get_premier_tetra(it);tet!=NULL;tet=fem->get_suivant_tetra(it)) |
| 328 |
|
|
{ |
| 329 |
|
|
if (((MG_TETRA*)tet->get_mg_element_maillage())->get_origine()!=IMPOSE) |
| 330 |
|
|
if (tet->get_solution()>seuil) |
| 331 |
|
|
((MG_TETRA*)tet->get_mg_element_maillage())->change_origine(OPTIMISE); |
| 332 |
|
|
else |
| 333 |
|
|
((MG_TETRA*)tet->get_mg_element_maillage())->change_origine(MAILLEUR_AUTO); |
| 334 |
|
|
|
| 335 |
|
|
} |
| 336 |
|
|
affiche("Enregistrement"); |
| 337 |
|
|
gestd->enregistrer(nomgestd); |
| 338 |
|
|
affiche("Fin"); |
| 339 |
|
|
} |
| 340 |
francois |
239 |
|
| 341 |
|
|
|
| 342 |
|
|
void MGOPT_SIMP::recupere_energie(vector<class SIMP_TETRA*> lsttet) |
| 343 |
|
|
{ |
| 344 |
|
|
char message[750]; |
| 345 |
|
|
sprintf(message,"%s.resu",nometude); |
| 346 |
|
|
FILE* in=fopen(message,"rt"); |
| 347 |
|
|
int fin=0; |
| 348 |
|
|
do |
| 349 |
|
|
{ |
| 350 |
|
|
fgets(message,750,in); |
| 351 |
|
|
if (feof(in)) fin=1; |
| 352 |
|
|
char mot1[100]; |
| 353 |
|
|
char mot2[100]; |
| 354 |
|
|
char mot3[100]; |
| 355 |
|
|
char mot4[100]; |
| 356 |
|
|
char mot5[100]; |
| 357 |
|
|
char mot6[100]; |
| 358 |
|
|
char mot7[100]; |
| 359 |
|
|
char mot8[100]; |
| 360 |
|
|
char mot9[100]; |
| 361 |
|
|
char mot10[100]; |
| 362 |
|
|
int numlu=sscanf(message,"%s %s %s %s %s %s %s %s %s %s",mot1,mot2,mot3,mot4,mot5,mot6,mot7,mot8,mot9,mot10); |
| 363 |
|
|
if (numlu>9) |
| 364 |
|
|
if (strcmp(mot1,"CHAMP")==0) |
| 365 |
|
|
if (strcmp(mot2,"PAR")==0) |
| 366 |
|
|
if (strcmp(mot3,"ELEMENT")==0) |
| 367 |
|
|
if (strcmp(mot4,"CONSTANT")==0) |
| 368 |
|
|
if (strcmp(mot5,"SUR")==0) |
| 369 |
|
|
if (strcmp(mot6,"L'ELEMENT")==0) |
| 370 |
|
|
if (strcmp(mot7,"DE")==0) |
| 371 |
|
|
if (strcmp(mot8,"NOM")==0) |
| 372 |
|
|
if (strcmp(mot9,"SYMBOLIQUE")==0) |
| 373 |
|
|
if (strcmp(mot10,"EPOT_ELEM_DEPL")==0) |
| 374 |
|
|
{ |
| 375 |
|
|
int fin2=0; |
| 376 |
|
|
int passe=0; |
| 377 |
|
|
int nbelement=0; |
| 378 |
|
|
do |
| 379 |
|
|
{ |
| 380 |
|
|
char message[750]; |
| 381 |
|
|
fgets(message,750,in); |
| 382 |
|
|
char mot1[500]; |
| 383 |
|
|
char mot2[500]; |
| 384 |
|
|
int numlu=sscanf(message,"%s %s",mot1,mot2); |
| 385 |
|
|
int decalage; |
| 386 |
|
|
if ((numlu==2) && (strcmp(mot2,"TOTALE")==0)) |
| 387 |
|
|
{ |
| 388 |
|
|
char *p=strchr(mot1,'M')+1; |
| 389 |
|
|
int num=atoi(p); |
| 390 |
|
|
if (passe==0) {passe=1;decalage=num;} |
| 391 |
|
|
fgets(message,750,in); |
| 392 |
|
|
double val; |
| 393 |
|
|
sscanf(message,"%lf",&val); |
| 394 |
|
|
lsttet[num-decalage]->energie=val; |
| 395 |
|
|
nbelement++; |
| 396 |
|
|
} |
| 397 |
|
|
if (nbelement == lsttet.size()) {fin2=1;fin=0;} |
| 398 |
|
|
} |
| 399 |
|
|
|
| 400 |
|
|
while (fin2==0); |
| 401 |
|
|
} |
| 402 |
|
|
} |
| 403 |
|
|
while (fin==0); |
| 404 |
|
|
fclose(in); |
| 405 |
|
|
} |
| 406 |
|
|
|
| 407 |
|
|
|
| 408 |
|
|
|
| 409 |
|
|
void MGOPT_SIMP::ajouter_voisin(int i,SIMP_TETRA* tet,vector<SIMP_TETRA*> &lst) |
| 410 |
|
|
{ |
| 411 |
|
|
tet->indice=i; |
| 412 |
|
|
int nbnoeud=tet->tet->get_nb_fem_noeud(); |
| 413 |
|
|
int correspondance[4]; |
| 414 |
|
|
if (nbnoeud==4) |
| 415 |
|
|
{ |
| 416 |
|
|
correspondance[0]=0; |
| 417 |
|
|
correspondance[1]=1; |
| 418 |
|
|
correspondance[2]=2; |
| 419 |
|
|
correspondance[3]=3; |
| 420 |
|
|
} |
| 421 |
|
|
if (nbnoeud==10) |
| 422 |
|
|
{ |
| 423 |
|
|
correspondance[0]=0; |
| 424 |
|
|
correspondance[1]=2; |
| 425 |
|
|
correspondance[2]=4; |
| 426 |
|
|
correspondance[3]=9; |
| 427 |
|
|
} |
| 428 |
|
|
SIMP_TETRA* tetcour=tet; |
| 429 |
|
|
int ok=0; |
| 430 |
|
|
int compteur=0; |
| 431 |
|
|
while (ok==0) |
| 432 |
|
|
{ |
| 433 |
|
|
for (int j=0;j<4;j++) |
| 434 |
|
|
{ |
| 435 |
|
|
int num=correspondance[j]; |
| 436 |
|
|
FEM_NOEUD *noeud=tetcour->tet->get_fem_noeud(num); |
| 437 |
|
|
int nbtetra=noeud->get_lien_tetra()->get_nb(); |
| 438 |
|
|
for (int k=0;k<nbtetra;k++) |
| 439 |
|
|
{ |
| 440 |
|
|
FEM_TETRA* ftet=noeud->get_lien_tetra()->get(k); |
| 441 |
|
|
SIMP_TETRA* stet=lst[ftet->get_numero()]; |
| 442 |
|
|
if (stet->indice!=i) |
| 443 |
|
|
{ |
| 444 |
|
|
stet->indice=i; |
| 445 |
|
|
//if (stet->design==1) |
| 446 |
|
|
if (tet->distance(stet)<tet->distance_ref) |
| 447 |
|
|
tet->voisin.insert(tet->voisin.end(),stet); |
| 448 |
|
|
} |
| 449 |
|
|
} |
| 450 |
|
|
} |
| 451 |
|
|
if (compteur>=tet->voisin.size()) ok=1; |
| 452 |
|
|
else |
| 453 |
|
|
{ |
| 454 |
|
|
tetcour=tet->voisin[compteur]; |
| 455 |
|
|
compteur++; |
| 456 |
|
|
} |
| 457 |
|
|
|
| 458 |
|
|
} |
| 459 |
|
|
|
| 460 |
|
|
} |
