/*****************************************************************************
 * Copyright 2005 Kevin Hobbs <hobbsk@ohiou.edu>                             *
 *                                                                           *
 * This file is part of Balloon.                                             *
 *                                                                           *
 * Balloon is free software; you can redistribute it and/or modify           *
 * it under the terms of the GNU General Public License as published by      *
 * the Free Software Foundation; either version 2 of the License, or         *
 * (at your option) any later version.                                       *
 *                                                                           *
 * Balloon is distributed in the hope that it will be useful,                *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             *
 * GNU General Public License for more details.                              *
 *                                                                           *
 * You should have received a copy of the GNU General Public License         *
 * along with Balloon; if not, write to the Free Software                    *
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA *
 *****************************************************************************/


#include <stddef.h>
#include <stdlib.h>
#include "mesh.h"
#include "utility.h"
#include "balloon.h"


void direction( const struct point * p,
		double * s, 
		const size_t ndims )
{
	size_t i, j;
	for ( i = 0; i < p ->  neighbor_count; i++)
		for ( j = 0; j < ndims; j++)
			s[j] += p -> neighbors[i] -> s[j] ;
}