vpMomentGravityCenter.cpp

/****************************************************************************
 *
 * $Id: vpMomentGravityCenter.cpp 4056 2013-01-05 13:04:42Z fspindle $
 *
 * This file is part of the ViSP software.
 * Copyright (C) 2005 - 2013 by INRIA. All rights reserved.
 *
 * This software is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * ("GPL") version 2 as published by the Free Software Foundation.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ViSP with software that can not be combined with the GNU
 * GPL, please contact INRIA about acquiring a ViSP Professional
 * Edition License.
 *
 * See http://www.irisa.fr/lagadic/visp/visp.html for more information.
 *
 * This software was developed at:
 * INRIA Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 * http://www.irisa.fr/lagadic
 *
 * If you have questions regarding the use of this file, please contact
 * INRIA at visp@inria.fr
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 *
 * Description:
 * 2D Gravity Center moment descriptor (usually described by the pair Xg,Yg)
 *
 * Authors:
 * Filip Novotny
 *
 *****************************************************************************/

#include <visp/vpMomentGravityCenter.h>
#include <visp/vpMomentObject.h>
void vpMomentGravityCenter::compute(){
    values[0] = getObject().get(1,0)/getObject().get(0,0);
    values[1] = getObject().get(0,1)/getObject().get(0,0);
}

vpMomentGravityCenter::vpMomentGravityCenter() : vpMoment(){
    values.resize(2);
}

std::vector<double>& vpMomentGravityCenter::get(){
    return values;
}

std::ostream & operator<<(std::ostream & os, const vpMomentGravityCenter& m){
    os << "Xg=" << m.values[0] << ", Yg=" << m.values[1];
    
    return os;    
}