kdtree get_feuille(kdtree arbre,color* colorI){
    int couleur = colorI[arbre->axeD];
    if( (arbre->left_son == NULL) && (arbre->right_son == NULL) ){
        return(arbre);
    }

    if( arbre->table->colorSequence[arbre->axeD + arbre->table->dim*arbre->planC] <= couleur ){
        if( (arbre->left_son != NULL) && (arbre->right_son != NULL) ){
            return(get_feuille(arbre->right_son,colorI));
        }
    }

    if( arbre->table->colorSequence[arbre->axeD + arbre->table->dim*arbre->planC] > couleur ){
        if( (arbre->left_son != NULL) && (arbre->right_son != NULL) ){
            return(get_feuille(arbre->left_son,colorI));
        }

    }
}