ROS robot -- little turtle drawing a circle (C + +)

Reference article: (4 messages) ROS robot practice - Little Turtle draws a circle_ Poetry and distant blog - CSDN bloghttps://blog.csdn.net/qq_44907912/article/details/105145132 Reference video: [Gu Yueju] Gu Yue · introduction to ROS 21 lecture | introduction to ROS robot_ Beep beep beep_ bilibilihttps://www.bilibili.com/video/BV1zt41 ...

Posted by gb75 on Fri, 15 Oct 2021 20:01:41 -0700

Ubuntu 18.04 uninstalling and installing opencv

View the installed opencv version number pkg-config --modversion opencv pkg-config --modversion opencv4 opencv uninstall sudo make uninstall cd .. sudo rm -r build sudo rm -r /usr/local/include/opencv2 /usr/local/include/opencv /usr/include/opencv /usr/include/opencv2 /usr/local/share/opencv /usr/local/share/OpenCV /usr/share/opencv /usr/sh ...

Posted by m00nz00mer on Mon, 11 Oct 2021 12:45:25 -0700

ROS communication mechanism -- topic and msg file

sketch Topic message communication means that the publisher who sends information and the subscriber who receives information send and receive information in the form of topic message. The subscriber node that wants to receive the topic receives the information of the publisher node corresponding to the topic name registered in the master ...

Posted by daxxy on Mon, 11 Oct 2021 10:26:10 -0700

Timestamp of TF transform in ROS learning

reference resources 1. Time stamp of TF coordinate broadcast 1.1. Function of timestamp First clarify what is the coordinate transformation of TF: in fact, it is the pose represented by the child coordinate system in the parent coordinate system, which can also be regarded as the coordinate transformation relationship from the child coo ...

Posted by windwaker on Sat, 02 Oct 2021 13:37:18 -0700

Installing ROS noedic under Windows

Installing ROS noedic under Windows 1. System requirements ROS for Windows requires 64 bit Windows 10 Desktop or Windows 10 IoT Enterprise. Make sure you have installed Powershell and are in the system path. Exclude c:\opt (and subsequent workspace folders) from the real-time virus scanner because they interfere with installation and devel ...

Posted by EvilWalrus on Sun, 26 Sep 2021 03:33:53 -0700

Gu Yueju_ ROS command line tool

rqt_graph   rqt_graph creates a dynamic graph that displays the current system operation: $ rqt_graph rosnode   the rosnode command can view node related information.   rosnode list is used to list all nodes of the system: $ rosnode list /rosout /teleop_turtle /turtlesim   rosnode info is used to view the ...

Posted by recklessgeneral on Thu, 23 Sep 2021 15:54:58 -0700