给move_base 发送 goal c++

使用 Action ：move_base_msgs::MoveBaseAction（move_base在world中的目标）

新建send_goal.cpp

/*
 * send_goal.cpp
 *
 *  Created on: Aug 10, 2016
 *      Author: unicorn
 */

#include 
#include 
#include 
/*move_base_msgs::MoveBaseAction
 move_base在world中的目标
*/ 
typedef actionlib::SimpleActionClient<move_base_msgs::MoveBaseAction>  MoveBaseClient;
int main(int argc, char** argv) {
     
	ros::init(argc, argv, "send_goals_node");

	/*
	// create the action client
	// true causes the client to spin its own thread
	//don't need ros::spin()
	创建action客户端，参数1：action名，参数2：true，不需要手动调用ros::spin()，会在它的线程中自动调用。
	*/
	MoveBaseClient ac("move_base", true);
	// Wait 60 seconds for the action server to become available
	ROS_INFO("Waiting for the move_base action server");
	ac.waitForServer(ros::Duration(60));
	ROS_INFO("Connected to move base server");
	// Send a goal to move_base
	//目标的属性设置
	move_base_msgs::MoveBaseGoal goal;
	goal.target_pose.header.frame_id = "map";
	goal.target_pose.header.stamp = ros::Time::now();
	goal.target_pose.pose.position.x = 21.174;
	goal.target_pose.pose.position.y = 10.876;
	goal.target_pose.pose.orientation.w = 1;
	ROS_INFO("");
	ROS_INFO("Sending goal");
	ac.sendGoal(goal);
	// Wait for the action to return
	ac.waitForResult();
	if (ac.getState() == actionlib::SimpleClientGoalState::SUCCEEDED)
	ROS_INFO("You have reached the goal!");
	else
	ROS_INFO("The base failed for some reason");
	return 0;
}

CMakeList.txt

find_package(catkin REQUIRED COMPONENTS
        actionlib
)
catkin_package(
#  INCLUDE_DIRS include
#  LIBRARIES navigation_goal
   CATKIN_DEPENDS roscpp rospy std_msgs actionlib
#  DEPENDS system_lib
)
add_executable(send_goal src/send_goal.cpp)
target_link_libraries(send_goal
   ${catkin_LIBRARIES}
 )

package.xml

  actionlib
  actionlib

move_base介绍：

Action Published Topics

move_base/feedback (move_base_msgs/MoveBaseActionFeedback)
Feedback含有基座当前位置信息
 
move_base/status (actionlib_msgs/GoalStatusArray)
携带目标执行的状态信息
 
move_base/result (move_base_msgs/MoveBaseActionResult)            
对于move_base action的result为空

状态返回的是数字，数字代表的含义在actionlib_msgs/GoalStatus.msg中定义了

     # uint8 PENDING         = 0   # The goal has yet to be processed by the action server
    # uint8 ACTIVE          = 1   # The goal is currently being processed by the action server
    # uint8 PREEMPTED       = 2   # The goal received a cancel request after it started executing
    #                             #   and has since completed its execution (Terminal State)
    # uint8 SUCCEEDED       = 3   # The goal was achieved successfully by the action server (Terminal State)
    # uint8 ABORTED         = 4   # The goal was aborted during execution by the action server due
    #                             #    to some failure (Terminal State)
    # uint8 REJECTED        = 5   # The goal was rejected by the action server without being processed,
    #                             #    because the goal was unattainable or invalid (Terminal State)
    # uint8 PREEMPTING      = 6   # The goal received a cancel request after it started executing
    #                             #    and has not yet completed execution
    # uint8 RECALLING       = 7   # The goal received a cancel request before it started executing,
    #                             #    but the action server has not yet confirmed that the goal is canceled
    # uint8 RECALLED        = 8   # The goal received a cancel request before it started executing
    #                             #    and was successfully cancelled (Terminal State)
    # uint8 LOST            = 9   # An action client can determine that a goal is LOST. This should not be
    #                             #    sent over the wire by an action server

文章来源：
https://blog.csdn.net/yiranhaiziqi/article/details/52891973
https://wenda.ncnynl.com/question/116423