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/*****************************************************************
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oc_ins.c Type:Func
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Creation de l arbre octal
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Date de creation : Tue Jun 17 14:09:16 1997
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Derniere version : Tue Jun 17 14:09:16 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 "const.h"
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#include "memoire.h"
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#include "struct.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_acis *acis;
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extern struct environnement env;
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extern struct s_mesh *mesh;
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extern struct s_param *para;
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/**************************/
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/* programme principal */
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struct s_octree *oc_ins(float x,float y, float z,float taille,struct s_noeud **tab_noeud,int nb_noeud)
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{
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struct s_octree *oct;
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int i,num;
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struct s_noeud *no;
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NEW_ENTITE(oct,octree,mesh->);
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oct->num=mesh->nb_octree-1;
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oct->x=x;
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oct->y=y;
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oct->z=z;
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oct->taille=taille;
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for (i=0;i<nb_noeud;i++)
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{
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no=tab_noeud[i];
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if ( (no->x>=x) && (no->y>=y) && (no->z>=z) && (no->x<x+taille) && (no->y<y+taille) && (no->z<z+taille) )
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{
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NEW_POINTEUR(num,noeud,oct->);
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oct->noeud[num]=no;
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}
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}
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if (oct->nb_noeud<2) {oct->feuille=1;mesh->nb_feuille++;}
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else
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{
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oct->fils[0]=oc_ins(oct->x,oct->y,oct->z,oct->taille/2.,oct->noeud,oct->nb_noeud);
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oct->fils[1]=oc_ins(oct->x+taille/2.,oct->y,oct->z,oct->taille/2.,oct->noeud,oct->nb_noeud);
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oct->fils[2]=oc_ins(oct->x,oct->y+taille/2.,oct->z,oct->taille/2.,oct->noeud,oct->nb_noeud);
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oct->fils[3]=oc_ins(oct->x+taille/2.,oct->y+taille/2.,oct->z,oct->taille/2.,oct->noeud,oct->nb_noeud);
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oct->fils[4]=oc_ins(oct->x,oct->y,oct->z+taille/2.,oct->taille/2.,oct->noeud,oct->nb_noeud);
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oct->fils[5]=oc_ins(oct->x+taille/2.,oct->y,oct->z+taille/2.,oct->taille/2.,oct->noeud,oct->nb_noeud);
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oct->fils[6]=oc_ins(oct->x,oct->y+taille/2.,oct->z+taille/2.,oct->taille/2.,oct->noeud,oct->nb_noeud);
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oct->fils[7]=oc_ins(oct->x+taille/2.,oct->y+taille/2.,oct->z+taille/2.,oct->taille/2.,oct->noeud,oct->nb_noeud);
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}
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return(oct);
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}
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