lcmt_panda_status.lcm

package drake;

// The current status of a Franka Panda arm.  All angular
// positions/velocities are expressed in radians and radians/second.
//
// The fields of this message are based on the franka::RobotState message
// found in libfranka, see
// https://frankaemika.github.io/libfranka/structfranka_1_1RobotState.html
// Where the names of some fields have been changed to be more "drake-like",
// the original field name is referenced here.
struct lcmt_panda_status
{
  // The timestamp in microseconds.
  int64_t utime;

  int32_t num_joints;

  // franka::RobotState.q
  double joint_position[num_joints];
  // franka::RobotState.q_d
  double joint_position_desired[num_joints];
  // franka::RobotState.dq
  double joint_velocity[num_joints];
  // franka::RobotState.dq_d
  double joint_velocity_desired[num_joints];
  // franka::RobotState.ddq_d
  double joint_acceleration_desired[num_joints];
  // franka::RobotState.tau_J
  double joint_torque[num_joints];
  // franka::RobotState.tau_J_d
  double joint_torque_desired[num_joints];
  // franka::RobotState.tau_ext_hat_filtered
  double joint_torque_external[num_joints];

  double control_command_success_rate;

  // enum for robot mode
  const int8_t kOther = 0;
  const int8_t kIdle = 1;
  const int8_t kMove = 2;
  const int8_t kGuiding = 3;
  const int8_t kReflex = 4;
  const int8_t kUserStopped = 5;
  const int8_t kAutomaticErrorRecovery = 6;
  int8_t robot_mode;

  // franka::RobotState.time.toMSec() * 1000
  int64_t robot_utime;

  // Information about how the driver's control mode is configured, as
  // described in
  // https://frankaemika.github.io/docs/libfranka.html#realtime-commands and
  // https://frankaemika.github.io/libfranka/classfranka_1_1Robot.html
  //
  // For a driver based on libfranka, at most one of position or velocity
  // control would be enabled at any given time.  In other circumstances
  // (e.g. simulation) both position and velocity commands may potentially be
  // used.
  const int8_t CONTROL_MODE_POSITION = 1;
  const int8_t CONTROL_MODE_VELOCITY = 2;
  const int8_t CONTROL_MODE_TORQUE = 4;

  // Mask of enabled control modes
  int8_t control_mode;
}