eigen_msg.cpp

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#include <eigen_conversions/eigen_msg.h>

namespace tf {

void poseMsgToEigen(const geometry_msgs::Pose &m, Eigen::Affine3d &e)
{
  e = Eigen::Translation3d(m.position.x,
                           m.position.y,
                           m.position.z) *
    Eigen::Quaterniond(m.orientation.w,
                       m.orientation.x,
                       m.orientation.y,
                       m.orientation.z);
}

void poseEigenToMsg(const Eigen::Affine3d &e, geometry_msgs::Pose &m)
{
  m.position.x = e.translation()[0];
  m.position.y = e.translation()[1];
  m.position.z = e.translation()[2];
  Eigen::Quaterniond q = (Eigen::Quaterniond)e.linear();
  m.orientation.x = q.x();
  m.orientation.y = q.y();
  m.orientation.z = q.z();
  m.orientation.w = q.w();
  if (m.orientation.w < 0) {
    m.orientation.x *= -1;
    m.orientation.y *= -1;
    m.orientation.z *= -1;
    m.orientation.w *= -1;
  }
}

void twistMsgToEigen(const geometry_msgs::Twist &m, Eigen::Matrix<double,6,1> &e)
{
  e[0] = m.linear.x;
  e[1] = m.linear.y;
  e[2] = m.linear.z;
  e[3] = m.angular.x;
  e[4] = m.angular.y;
  e[5] = m.angular.z;
}

void twistEigenToMsg(const Eigen::Matrix<double,6,1> &e, geometry_msgs::Twist &m)
{
  m.linear.x = e[0];
  m.linear.y = e[1];
  m.linear.z = e[2];
  m.angular.x = e[3];
  m.angular.y = e[4];
  m.angular.z = e[5];
}

void wrenchMsgToEigen(const geometry_msgs::Wrench &m, Eigen::Matrix<double,6,1> &e)
{
  e[0] = m.force.x;
  e[1] = m.force.y;
  e[2] = m.force.z;
  e[3] = m.torque.x;
  e[4] = m.torque.y;
  e[5] = m.torque.z;
}

void wrenchEigenToMsg(const Eigen::Matrix<double,6,1> &e, geometry_msgs::Wrench &m)
{
  m.force.x = e[0];
  m.force.y = e[1];
  m.force.z = e[2];
  m.torque.x = e[3];
  m.torque.y = e[4];
  m.torque.z = e[5];
}

} // namespace