| 1 |
|
1 |
/*****************************************************************
|
| 2 |
|
|
|
| 3 |
|
|
m2d_ac_front.c Type:Func
|
| 4 |
|
|
|
| 5 |
|
|
Actualisation du front
|
| 6 |
|
|
|
| 7 |
|
|
Date de creation : Fri Feb 14 11:00:54 1997
|
| 8 |
|
|
|
| 9 |
|
|
Derniere version : Wed May 28 11:48:59 1997
|
| 10 |
|
|
|
| 11 |
|
|
|
| 12 |
|
|
|
| 13 |
|
|
|
| 14 |
|
|
|
| 15 |
|
|
|
| 16 |
|
|
|
| 17 |
|
|
|
| 18 |
|
|
|
| 19 |
|
|
|
| 20 |
|
|
|
| 21 |
|
|
|
| 22 |
|
|
|
| 23 |
|
|
|
| 24 |
|
|
Vincent FRANCOIS
|
| 25 |
|
|
|
| 26 |
|
|
*****************************************************************/
|
| 27 |
|
|
|
| 28 |
|
|
|
| 29 |
|
|
|
| 30 |
|
|
|
| 31 |
|
|
|
| 32 |
|
|
/**************************/
|
| 33 |
|
|
/* include */
|
| 34 |
|
|
#include <stdio.h>
|
| 35 |
|
|
#include <string.h>
|
| 36 |
|
|
#include <stdlib.h>
|
| 37 |
|
|
#include "memoire.h"
|
| 38 |
|
|
#include "struct.h"
|
| 39 |
|
|
#include "const.h"
|
| 40 |
|
|
#include "prototype.h"
|
| 41 |
|
|
|
| 42 |
|
|
/**************************/
|
| 43 |
|
|
/* variables globales */
|
| 44 |
|
|
extern struct s_mesh *mesh;
|
| 45 |
|
|
extern struct environnement env;
|
| 46 |
|
|
|
| 47 |
|
|
/**************************/
|
| 48 |
|
|
/* programme principal */
|
| 49 |
|
|
|
| 50 |
|
|
void m2d_ac_front(struct s_front **ele,int operation)
|
| 51 |
|
|
{
|
| 52 |
|
|
struct s_front *tmp,*tmp2,**l_front;
|
| 53 |
|
|
struct s_noeud *no1,*no2;
|
| 54 |
|
|
float umin,vmin,umax,vmax,u,v,rayon;
|
| 55 |
|
|
int nb_liste,i,j;
|
| 56 |
|
|
struct s_quadtree **liste,*quad;
|
| 57 |
|
|
|
| 58 |
|
|
|
| 59 |
|
|
|
| 60 |
|
|
switch (operation)
|
| 61 |
|
|
{
|
| 62 |
|
|
case 1: /* suppression du lien avec l arbre */
|
| 63 |
|
|
liste=(struct s_quadtree **)calloc(mesh->nb_quadtree+1,sizeof(struct s_quadtree *));
|
| 64 |
|
|
ERREUR_ALLOC(liste);
|
| 65 |
|
|
l_front=(struct s_front **)calloc(mesh->nb_front_tot+1,sizeof(struct s_front *));
|
| 66 |
|
|
ERREUR_ALLOC(l_front);
|
| 67 |
|
|
no1=ADRESSE((*ele)->n1,noeud,mesh->);
|
| 68 |
|
|
no2=ADRESSE((*ele)->n2,noeud,mesh->);
|
| 69 |
|
|
MINI(umin,no1->u,no2->u);
|
| 70 |
|
|
MINI(vmin,no1->v,no2->v);
|
| 71 |
|
|
MAXI(umax,no1->u,no2->u);
|
| 72 |
|
|
MAXI(vmax,no1->v,no2->v);
|
| 73 |
|
|
u=(umin+umax)/2.;
|
| 74 |
|
|
v=(vmin+vmax)/2.;
|
| 75 |
|
|
MAXI(rayon,(umax-u),(vmax-v));
|
| 76 |
|
|
nb_liste=0;
|
| 77 |
|
|
qu_rechercher(u,v,rayon,mesh->root,liste,&nb_liste);
|
| 78 |
|
|
for (i=0;i<nb_liste;i++)
|
| 79 |
|
|
{
|
| 80 |
|
|
quad=liste[i];
|
| 81 |
|
|
j=0;
|
| 82 |
|
|
while ( (j<quad->nb_front) )
|
| 83 |
|
|
{
|
| 84 |
|
|
if (quad->front[j]==(*ele))
|
| 85 |
|
|
{
|
| 86 |
|
|
if (j!=(quad->nb_front-1))
|
| 87 |
|
|
{
|
| 88 |
|
|
memcpy(l_front,&(quad->front[j+1]),(quad->nb_front-1-j)*sizeof(struct s_front *));
|
| 89 |
|
|
memcpy(&(quad->front[j]),l_front,(quad->nb_front-1-j)*sizeof(struct s_front *));
|
| 90 |
|
|
}
|
| 91 |
|
|
quad->front[quad->nb_front-1]=NULL;
|
| 92 |
|
|
quad->nb_front--;
|
| 93 |
|
|
/*j=quad->nb_front+5;*/
|
| 94 |
|
|
}
|
| 95 |
|
|
else j++;
|
| 96 |
|
|
}
|
| 97 |
|
|
}
|
| 98 |
|
|
free(liste);
|
| 99 |
|
|
free(l_front);
|
| 100 |
|
|
/* suppression de l element dans le front */
|
| 101 |
|
|
(*ele)->seg->front=(*ele)->seg->front-1;
|
| 102 |
|
|
(*ele)->n1=0;
|
| 103 |
|
|
(*ele)->n2=0;
|
| 104 |
|
|
(*ele)->seg=NULL;
|
| 105 |
|
|
(*ele)->etat=(-1);
|
| 106 |
|
|
(*ele)->suiv=NULL;
|
| 107 |
|
|
(*ele)->prec=NULL;
|
| 108 |
|
|
tmp=(*ele)->suivant;
|
| 109 |
|
|
tmp2=(*ele)->precedent;
|
| 110 |
|
|
if ((*ele)->precedent!=NULL) (*ele)->precedent->suivant=tmp;
|
| 111 |
|
|
else mesh->tete_front=tmp;
|
| 112 |
|
|
if ((*ele)->suivant!=NULL) (*ele)->suivant->precedent=tmp2;
|
| 113 |
|
|
(*ele)->precedent=NULL;
|
| 114 |
|
|
(*ele)->suivant=mesh->vide_front;
|
| 115 |
|
|
mesh->vide_front=(*ele);
|
| 116 |
|
|
mesh->nb_front--;
|
| 117 |
|
|
break;
|
| 118 |
|
|
case 2: if (mesh->vide_front!=NULL)
|
| 119 |
|
|
{
|
| 120 |
|
|
(*ele)=mesh->vide_front;
|
| 121 |
|
|
mesh->vide_front=mesh->vide_front->suivant;
|
| 122 |
|
|
(*ele)->suivant=NULL;
|
| 123 |
|
|
mesh->nb_front++;
|
| 124 |
|
|
}
|
| 125 |
|
|
else
|
| 126 |
|
|
{
|
| 127 |
|
|
NEW_ENTITE(tmp,front,mesh->);
|
| 128 |
|
|
(*ele)=tmp;
|
| 129 |
|
|
(*ele)->num=mesh->nb_front-1;
|
| 130 |
|
|
mesh->nb_front_tot=mesh->nb_front_tot+1;
|
| 131 |
|
|
}
|
| 132 |
|
|
(*ele)->etat=1;
|
| 133 |
|
|
break;
|
| 134 |
|
|
}
|
| 135 |
|
|
|
| 136 |
|
|
}
|
