src/InvKin/KatanaKinematicsDecisionAlgorithms.cpp

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/***************************************************************************
 *   Copyright (C) 2006 by Tiziano Mueller   *
 *   tiziano.mueller@neuronics.ch   *
 *                                                                         *
 *   This program 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.                                   *
 *                                                                         *
 *   This program 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 this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
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 ***************************************************************************/

#include "KNI_InvKin/KatanaKinematicsDecisionAlgorithms.h"
#include "common/MathHelperFunctions.h"

namespace KNI {


KinematicsDefaultEncMinAlgorithm::t_iter
KinematicsDefaultEncMinAlgorithm::operator() (t_iter targetEnc_begin, t_iter targetEnc_end, c_iter currentEnc_begin, c_iter currentEnc_end ) {
        // assert on distance(tE_beg, tE_enc) != distance(cE_beg, cE_enc)
        //assert(::std::distance(targetEnc_begin, targetEnc_end) == ::std::distance(currentEnc_begin, currentEnc_end) && "Numbers of target encoders and current encoders provided don't match" );
        using namespace KNI_MHF;
        double dist(0), sum(0), mindist=1000000;
        t_iter index = targetEnc_end;

        for(t_iter target = targetEnc_begin; target != targetEnc_end; ++target) {
                sum = 0;

                c_iter t = (*target).begin();
                c_iter c = currentEnc_begin;
                while( t != (*target).end() && c != currentEnc_end) {
                        sum += pow2<double>( *t - *c);
                        ++t;
                        ++c;
                }
                dist = sqrt(sum);
                if(dist < mindist) {
                        index = target;
                        mindist = dist;
                }
        }

        return index;
}


}