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/*****************************************************************
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qu_parcour.c Type:Func
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recherche dans l arbre quadternaire
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Date de creation : Wed Feb 12 10:46:49 1997
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Derniere version : Wed Jun 4 16:46:42 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 "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 environnment env;
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extern struct s_mesh *mesh;
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/**************************/
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/* programme principal */
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void qu_parcour(float umin,float vmin,float umax,float vmax,struct s_quadtree *quad,struct s_quadtree **liste,int *nb_liste,int *liste_quad)
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{
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if (umax>=quad->u-0.0001)
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if (vmax>=quad->v-0.0001)
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if (umin<(quad->u+quad->t_u))
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if (vmin<(quad->v+quad->t_v))
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if (quad->feuille==1)
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{
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if (liste_quad[quad->num]==0)
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{
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liste[*nb_liste]=quad;
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(*nb_liste)++;
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liste_quad[quad->num]=1;
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}
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}
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else
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{
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qu_parcour(umin,vmin,umax,vmax,quad->fils[0],liste,nb_liste,liste_quad);
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qu_parcour(umin,vmin,umax,vmax,quad->fils[1],liste,nb_liste,liste_quad);
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qu_parcour(umin,vmin,umax,vmax,quad->fils[2],liste,nb_liste,liste_quad);
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qu_parcour(umin,vmin,umax,vmax,quad->fils[3],liste,nb_liste,liste_quad);
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}
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}
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