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ROS 节点里调用自定义库类 无法启动构造函数现象及解决方法

程序员文章站 2024-03-26 11:24:35
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前提是想模仿move_base_node的写法,单独写节点,然后在节点中定义自定义类对象实现功能

#include <move_base/move_base.h>

int main(int argc, char** argv){
  ros::init(argc, argv, "move_base_node");
  tf::TransformListener tf(ros::Duration(10));

  move_base::MoveBase move_base( tf );

  //ros::MultiThreadedSpinner s;
  ros::spin();

  return(0);
}

然后写了个测试

test.h

#include <ros/ros.h>

class Test{
    public:
        Test();
        ~Test();
};

test.cpp

#include <test/test.h>

Test::Test(){
    ROS_INFO("hello");
}

Test::~Test(){

}

test_node.cpp

#include <test/test.h>

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

    ros::spin();
    
    return 0;
}

cmakelist.txt

add_library(TEST
  include/test/test.h
  src/test.cpp
)
add_dependencies(TEST ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})
target_link_libraries(TEST
  ${catkin_LIBRARIES}
)

add_executable(test_node
  src/test_node.cpp
)
add_dependencies(test_node ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})
target_link_libraries(test_node TEST
  ${catkin_LIBRARIES}
)
set_target_properties(test_node PROPERTIES OUTPUT_NAME test)

编译通过后运行rosrun test test后无法输出构造函数中的hello,修改cmakelist等无果

后来想move_base里定义对象时有输入tf作为实参,尝试了下,竟然成功了

##test.h

#include <ros/ros.h>
#include <tf/transform_listener.h>
class Test{
    public:
        Test(tf::TransformListener& tf);
        ~Test();
        tf::TransformListener& tf_;
};

#test.cpp

#include <test/test.h>

Test::Test(tf::TransformListener& tf):
    tf_(tf)
    {
    ros::NodeHandle nh;
    ros::NodeHandle private_nh("~");
    ROS_INFO("hello");
}

Test::~Test(){

}

##test_node.cpp

#include <test/test.h>

int main(int argc, char** argv){
    ros::init(argc, argv, "test");
    tf::TransformListener tf(ros::Duration(10));
    Test test(tf);

    ros::spin();
    
    return 0;
}

ROS 节点里调用自定义库类 无法启动构造函数现象及解决方法

原因暂时未知,如果大神,万望指点一二。

相关标签: ros 类对象