ControlledObject.cpp

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/*
 * ControlledObject.cpp
 *
 *  Created on: Jan 5, 2009
 *      Author: rubensmits
 */
 
#include "ControlledObject.hpp"
 
 
namespace iTaSC {
ControlledObject::ControlledObject():
    Object(Controlled),m_nq(0),m_nc(0),m_nee(0)
{
    // max joint variable = 0.52 radian or 0.52 meter in one timestep
    m_maxDeltaQ = e_scalar(0.52);
}
 
void ControlledObject::initialize(unsigned int _nq,unsigned int _nc, unsigned int _nee)
{
    assert(_nee >= 1);
    m_nq = _nq;
    m_nc = _nc;
    m_nee = _nee;
    if (m_nq > 0) {
        m_Wq =  e_identity_matrix(m_nq,m_nq);
        m_qdot = e_zero_vector(m_nq);
    }
    if (m_nc > 0) {
        m_Wy = e_scalar_vector(m_nc,1.0);
        m_ydot = e_zero_vector(m_nc);
    }
    if (m_nc > 0 && m_nq > 0)
        m_Cq = e_zero_matrix(m_nc,m_nq);
    // clear all Jacobian if any
    m_JqArray.clear();
    // reserve one more to have a zero matrix handy
    if (m_nq > 0)
        m_JqArray.resize(m_nee+1, e_zero_matrix(6,m_nq));
}
 
ControlledObject::~ControlledObject() {}
 
 
 
const e_matrix& ControlledObject::getJq(unsigned int ee) const
{
    assert(m_nq > 0);
    return m_JqArray[(ee>m_nee)?m_nee:ee];
}
 
double ControlledObject::getMaxTimestep(double& timestep)
{
    e_scalar maxQdot = m_qdot.array().abs().maxCoeff();
    if (timestep*maxQdot > m_maxDeltaQ) {
        timestep = m_maxDeltaQ/maxQdot;
    }
    return timestep;
}
 
}