com.cpp

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/*
 * Copyright (c) 2008, AIST, the University of Tokyo and General Robotix Inc.
 * All rights reserved. This program is made available under the terms of the
 * Eclipse Public License v1.0 which accompanies this distribution, and is
 * available at http://www.eclipse.org/legal/epl-v10.html
 * Contributors:
 * The University of Tokyo
 */
/*
 * handle.cpp
 * Create: Katsu Yamane, 03.07.10
 */
 
#include "ik.h"
 
int IKCom::calc_jacobian()
{
        if(n_const == 0) return 0;
        int n_dof = ik->NumDOF();
        fMat Jtemp;
        J.resize(n_const, n_dof);
        Jtemp.resize(3, n_dof);
        Jtemp.zero();
        ik->ComJacobian(Jtemp, cur_com, charname);
        int i, j, count = 0;
        for(i=0; i<3; i++)
        {
                if(const_index[i] == IK::HAVE_CONSTRAINT)
                {
                        for(j=0; j<n_dof; j++)
                                J(count, j) = Jtemp(i, j);
                        count++;
                }
        }
        return 0;
}
 
int IKCom::calc_feedback()
{
        int i, count = 0;
        fVec3 dp;
        dp.sub(des_com, cur_com);
        dp *= gain;
        for(i=0; i<3; i++)
        {
                if(const_index[i] == IK::HAVE_CONSTRAINT)
                {
                        fb(count) = dp(i);
                        count++;
                }
        }
        return 0;
}