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Windows do not really distinguish the uppercase and the lowercase for the name of a folder. And the above error happened because I entered the same file with different capitalized words. e.g. RETINA_Analyzer_ROS retina_analyzer_ros ReTiNa_AnAlYzEr_RoS So I had to figure out a way do delete the other two paths, but I could not figure out. So the alternative way was that I get into the launch file..

머신러닝 2020. 7. 17. 15:03

reference: http://wiki.ros.org/rviz/Tutorials/Markers%3A%20Basic%20Shapes This is the original document, and it helps you to visualize data in rviz, without interpreting it. Before doing anything, open a bash shell then type roscore Now, open another bash shell, and download the rviz visual tools. sudo apt-get install ros-melodic-rviz-visual-tools If it does not work, run below code then try aga..

rviz 2020. 7. 13. 02:26

Through the parameter server, you can interact with the server. According to ROS wiki, the parameter server is a shared, multi-variate dictionary that is accessible via network APIs Also, nodes use this server to store and retrieve parameters at runtime. When you type the command: rosparam list You can see the list of the parameters. Also, the below command shows the information about a specific..

머신러닝 2020. 7. 12. 05:54

It is a wrapper for CMakelists

머신러닝 2020. 7. 12. 05:28

지원서 작성하다가 적어봐요 ㅋㅋㅋ 한글 파일에서 흰색 네모에 체크 표시를 해야한다? 그러면 바로 CTRL + F10을 누르시면 문자표 입력이 나옵니다 거기에서 유니코드 문자표 -> 여러가지 기호 -> 체크박스 클릭! 사용자 문자표 -> 특수기호 및 딩뱃기호에도 있으나 좀 굵은 테두리의 박스였습니다.

카테고리 없음 2020. 7. 12. 05:16

echo $ROS_MASTER_URI This shows the web address, IP, and port number. Now enter the following command roslaunch openni_launch openni.launch ROS_MASTER_URL is the address of ros_master process or roscore In fact, you may change this (In .bashrc file, but I would not do that). In the video that I learned, the URI was like below http://10.8.0.1:11311 Sometimes, the above IP part(10.8.0.1) is a host..

머신러닝 2020. 7. 11. 15:46

launch file: XML document that has .launch extension It launches multiple ROS nodes. It specifies which nodes to execute, and their parameters, and what other launch files to include. How to create: 1. Go to catkin_ws/src 2. Create the directory to put .launch file catkin_create_pkg launch 3. Create the file in directory/src echo "blah" > turtlesim_teleop.launch nano turtllesim_teleop.launch 4. ..

머신러닝 2020. 7. 10. 18:40

Open 2 terminals. First terminal: roscore Second terminal: rosrun turtlesim turtlesim_node Then type rosnode info turtlesim You'll be able to see information about this node - Publications/Subscriptions/Services rostopic list rostopic echo [one of the topics on the list] this will show information about turtlesim Reference: https://wiki.ros.org/ROS/Tutorials/UnderstandingNodes

머신러닝 2020. 7. 9. 16:56