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/*****************************************************************
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m3d_ac_front.c Type:Func
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Actualisation du front
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Date de creation : Fri Feb 14 11:00:54 1997
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Derniere version : Wed May 28 11:48:59 1997
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Vincent FRANCOIS
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*****************************************************************/
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/**************************/
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/* include */
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "memoire.h"
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#include "struct.h"
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#include "const.h"
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#include "prototype.h"
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/**************************/
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/* variables globales */
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extern struct s_mesh *mesh;
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extern struct environnement env;
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/**************************/
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/* programme principal */
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void m3d_ac_front(struct s_front3d **ele,int operation)
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{
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struct s_front3d *tmp,*tmp2,**l_front;
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struct s_noeud *no1,*no2,*no3;
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float x,y,z;
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int nb_liste,i,j,num;
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struct s_octree **liste,*oct;
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switch (operation)
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{
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case DETRUIT: /* suppression du lien avec l arbre */
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liste=(struct s_octree **)calloc(mesh->nb_octree+1,sizeof(struct s_octree *));
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ERREUR_ALLOC(liste);
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l_front=(struct s_front3d **)calloc(mesh->nb_front3d_tot+1,sizeof(struct s_front3d *));
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ERREUR_ALLOC(l_front);
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no1=ADRESSE((*ele)->n1,noeud,mesh->);
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no2=ADRESSE((*ele)->n2,noeud,mesh->);
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no3=ADRESSE((*ele)->n3,noeud,mesh->);
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x=0.3333333*(no1->x+no2->x+no3->x);
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y=0.3333333*(no1->y+no2->y+no3->y);
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z=0.3333333*(no1->z+no2->z+no3->z);
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nb_liste=0;
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oc_rechercher(x,y,z,(*ele)->longueur,mesh->first,liste,&nb_liste);
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for (i=0;i<nb_liste;i++)
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{
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oct=liste[i];
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j=0;
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while ( (j<oct->nb_front3d) )
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{
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if (oct->front3d[j]==(*ele))
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{
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if (j!=(oct->nb_front3d-1))
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{
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memcpy(l_front,&(oct->front3d[j+1]),(oct->nb_front3d-1-j)*sizeof(struct s_front3d *));
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memcpy(&(oct->front3d[j]),l_front,(oct->nb_front3d-1-j)*sizeof(struct s_front3d *));
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}
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oct->front3d[oct->nb_front3d-1]=NULL;
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oct->nb_front3d--;
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}
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else j++;
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}
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}
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free(liste);
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free(l_front);
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/* suppression de l element dans le front */
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(*ele)->tri->ft=NULL;
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(*ele)->tri->front=(*ele)->tri->front+1;
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(*ele)->n1=0;
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(*ele)->n2=0;
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(*ele)->n3=0;
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(*ele)->tri=NULL;
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(*ele)->etat=(-1);
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(*ele)->voisin[0].ft=NULL;
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(*ele)->voisin[1].ft=NULL;
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(*ele)->voisin[2].ft=NULL;
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tmp=(*ele)->suivant;
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tmp2=(*ele)->precedent;
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num=(*ele)->type;
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if (num>(-1))
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{
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if ((*ele)->precedent!=NULL) (*ele)->precedent->suivant=tmp;
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else mesh->tete_front3d[num]=tmp;
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if ((*ele)->suivant!=NULL) (*ele)->suivant->precedent=tmp2;
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else mesh->queue_front3d[num]=tmp2;
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}
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(*ele)->precedent=NULL;
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(*ele)->suivant=mesh->vide_front3d;
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(*ele)->type=(-1);
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mesh->vide_front3d=(*ele);
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mesh->nb_front3d--;
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break;
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case NEW:
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if (mesh->vide_front3d!=NULL)
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{
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(*ele)=mesh->vide_front3d;
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mesh->vide_front3d=mesh->vide_front3d->suivant;
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(*ele)->suivant=NULL;
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mesh->nb_front3d++;
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}
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else
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{
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NEW_ENTITE(tmp,front3d,mesh->);
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(*ele)=tmp;
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(*ele)->num=mesh->nb_front3d-1;
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mesh->nb_front3d_tot=mesh->nb_front3d_tot+1;
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}
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(*ele)->etat=1;
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(*ele)->type=-1;
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break;
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}
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}
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