abb_joint_downloader_node.cpp

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#include "abb_common/abb_utils.h"
#include "industrial_robot_client/joint_trajectory_downloader.h"
#include "industrial_utils/param_utils.h"

using industrial_robot_client::joint_trajectory_downloader::JointTrajectoryDownloader;

class ABB_JointTrajectoryDownloader : public JointTrajectoryDownloader
{
  using JointTrajectoryDownloader::init;  // so base-class init() stays visible

  bool J23_coupled_;

public:
  bool init()
  {
    if (!JointTrajectoryDownloader::init())  // call base-class init()
      return false;

    if (ros::param::has("J23_coupled"))
      ros::param::get("J23_coupled", this->J23_coupled_);
    else
      J23_coupled_ = false;

    return true;
  }

  bool transform(const trajectory_msgs::JointTrajectoryPoint& pt_in, trajectory_msgs::JointTrajectoryPoint* pt_out)
  {
    // correct for parallel linkage effects, if desired
    //   - use POSITIVE factor for joint->motor correction
    abb::utils::linkage_transform(pt_in, pt_out, J23_coupled_ ? +1:0 );

    return true;
  }

  bool calc_velocity(const trajectory_msgs::JointTrajectoryPoint& pt, double* rbt_velocity)
  {
    *rbt_velocity = 0;  // unused by ABB driver
    return true;
  }
};

int main(int argc, char** argv)
{
  // initialize node
  ros::init(argc, argv, "motion_interface");

  // launch the default JointTrajectoryDownloader connection/handlers
  ABB_JointTrajectoryDownloader motionInterface;
  motionInterface.init();
  motionInterface.run();

  return 0;
}