ROS服务中自定义数据类型

ROS服务中自定义数据类型

在上一篇文章中，描述了一种两层封装的点集传输服务消息类型，比较复杂。上一篇文章
事后我就在想何必包两层，直接在服务中利用提供的数据类型定义数组不就行了。所以动手试了一下：

自定义数据类型

代码应用

//server端
#include "ros/ros.h"
#include "gm_ros_package/objectPosition.h"
#include "gm_ros_package/test.h"


bool process_position(gm_ros_package::test::Request &req,gm_ros_package::test::Response &res)
{
    
       
    // ROS_INFO("x:%f,y:%f,z:%f",req.points.point[0].x,req.points.point[0].y,req.points.point[0].z);
    for(int i =0;i < 2;i ++)
    {
    
    
        ROS_INFO("x:%f,y:%f,z:%f",req.points[i].x,req.points[i].y,req.points[i].z);
    }
    res.back = 12;
    return true;
}



int main(int argc,char** argv)
{
    
    
    ros::init(argc,argv,"recive_positon_node");
    ros::NodeHandle nh;
    ros::ServiceServer service = nh.advertiseService("object_position",process_position);
    ROS_INFO("wait the position message!");
    ros::spin();
    return 0;
}

//client端
#include "ros/ros.h"
#include "gm_ros_package/objectPosition.h"
#include "gm_ros_package/Points.h"
#include "geometry_msgs/Point.h"
#include "gm_ros_package/test.h"
#include <iostream>
using namespace std;

int main(int argc,char** argv)
{
    
    
    ros::init(argc,argv,"send_position_node");

    ros::NodeHandle nh;
    ros::ServiceClient client = nh.serviceClient<gm_ros_package::test>("object_position");

    gm_ros_package::test position;
    gm_ros_package::Points points;
    geometry_msgs::Point point[2];
    cout << "test" << endl;
    point[0].x = 1.0;
    point[0].y = 2.0;
    point[0].z = 3.0;
    point[1].x = 11.0;
    point[1].y = 21.0;
    point[1].z = 3.10;
    cout << "test1" << endl;
    std::vector<geometry_msgs::Point> ar(point,point+2);
    // points.point = ar;
    // position.request.points = points;
    position.request.points = ar;
   cout << "baxk" << endl;
        if(client.call(position))
        {
    
    
            ROS_INFO("the progress is :%ld",position.response.back);
        }
        else
        {
    
    
            ROS_ERROR("Fail to call service");
        }
}