joint_point_to_point_motion.cpp

An example that moves the robot to a target position by commanding joint positions.

An example that moves the robot to a target position by commanding joint positions.

Warning

Before executing this example, make sure there is enough space in front of the robot.

// Copyright (c) 2023 Franka Robotics GmbH
// Use of this source code is governed by the Apache-2.0 license, see LICENSE
#include <cmath>
#include <iostream>
 
#include <franka/exception.h>
#include <franka/robot.h>
 
#include "examples_common.h"
 
int main(int argc, char** argv) {
  if (argc != 10) {
    std::cerr << "Usage: " << argv[0] << " <robot-hostname> "
              << "<joint0> <joint1> <joint2> <joint3> <joint4> <joint5> <joint6> "
              << "<speed-factor>" << std::endl
              << "joint0 to joint6 are joint angles in [rad]." << std::endl
              << "speed-factor must be between zero and one." << std::endl;
    return -1;
  }
  try {
    franka::Robot robot(argv[1]);
    setDefaultBehavior(robot);
 
    std::array<double, 7> q_goal;
    for (size_t i = 0; i < 7; i++) {
      q_goal[i] = std::stod(argv[i + 2]);
    }
    double speed_factor = std::stod(argv[9]);
 
    // Set additional parameters always before the control loop, NEVER in the control loop!
    // Set collision behavior.
    robot.setCollisionBehavior(
        {{20.0, 20.0, 20.0, 20.0, 20.0, 20.0, 20.0}}, {{20.0, 20.0, 20.0, 20.0, 20.0, 20.0, 20.0}},
        {{10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0}}, {{10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0}},
        {{20.0, 20.0, 20.0, 20.0, 20.0, 20.0}}, {{20.0, 20.0, 20.0, 20.0, 20.0, 20.0}},
        {{10.0, 10.0, 10.0, 10.0, 10.0, 10.0}}, {{10.0, 10.0, 10.0, 10.0, 10.0, 10.0}});
 
    MotionGenerator motion_generator(speed_factor, q_goal);
    std::cout << "WARNING: This example will move the robot! "
              << "Please make sure to have the user stop button at hand!" << std::endl
              << "Press Enter to continue..." << std::endl;
    std::cin.ignore();
    robot.control(motion_generator);
    std::cout << "Motion finished" << std::endl;
  } catch (const franka::Exception& e) {
    std::cout << e.what() << std::endl;
    return -1;
  }
 
  return 0;
}