기술 성공, 실패 기록소

https://roboticsbackend.com/ros-include-cpp-header-from-another-package/ [ROS] Include a Cpp header from another package - The Robotics Back-End Learn how to include a header file in another package with ROS. First we'll create a library package, then install the library, and make it work! roboticsbackend.com

https://answers.ros.org/question/274242/generic-path-to-read-a-file-in-a-ros-directory/ Generic path to read a file in a ROS directory - ROS Answers: Open Source Q&A Forum Generic path to read a file in a ROS directory edit I have created a /csv and /scripts directories in my /src directory. The /csv directory contains a csv file and /scripts directory contains a Python script to parse the csv f..

roslaunch에서 c++에선 main 함수 내에서 argv[1] 로 filename에 접근해야함. nh.getParam("filename", filename) 과 같이 접근하려면 roslaunch에서 다음과 같은 식으로 param tag를 사용해 줘야함. command line으로 arg value를 넣을 땐 roslaunch webots_ros play_motion.launch filename:=motion_001 위와 같은 식으로 해줘야 하고. 그러니까 c++에서 getParam을 사용하기 위해선 roslaunch에서 param tag를 사용해야 하고 command line에서는 arg value를 roslaunch 의 arg tag로 전달 할 수 있다.

https://mindflip.github.io/ros/ROS_rosbag/ [ROS] Recording and playing back data (rosbag) ROS 데이터 기록 및 재생 mindflip.github.io https://m.blog.naver.com/passionvirus/80130371533 [ROS] 자습서 14 : 데이타 기록 및 재생 [ROS] 자습서 14 : 데이타 기록 및 재생 -----------------------------------------------------------... blog.naver.com

realsense camera 토픽 중 /camera/depth/image_rect_raw/compressed /camera/depth/image_rect_raw/compressedDepth 위 두 토픽 중 /camera/depth/image_rect_raw/compressedDepth 를 사용한다. 위에건 fake이다. decompress 16 bit grey scale은 opencv에서 제공하지 않는다. opencv는 8 bit grey scalse 만 decompress 해줌 간단하게 http://wiki.ros.org/image_transport image_transport - ROS Wiki kinetic melodic noetic Show EOL distros: EOL distros: elec..

https://docs.opencv.org/3.4/d8/d6a/group__imgcodecs__flags.html#ga61d9b0126a3e57d9277ac48327799c80 OpenCV: Flags used for image file reading and writing For TIFF, use to specify the image compression scheme. See libtiff for integer constants corresponding to compression formats. Note, for images whose depth is CV_32F, only libtiff's SGILOG compression scheme is used. For other supported depths, ..

https://answers.ros.org/question/11312/what-is-image-step/ what is image step ? - ROS Answers: Open Source Q&A Forum I wanted to use the toImageMsg() function to obtain ros image message using the image date from my usb cam. And as I was assigning header and encoding information, I came across this variable called "step" and then later the "size" is defined as: step_t si answers.ros.org

https://answers.ros.org/question/105576/catkin-moveremove-package-and-workspace/ catkin: move/remove package and workspace - ROS Answers: Open Source Q&A Forum catkin: move/remove package and workspace edit Hello, I have a catkin workspace containing some catkin packages. They were created using catkin_init_workspace and catkin_create_pkg commands respectively. I want to move them all in another..

http://wiki.ros.org/ROS/Tutorials/WritingPublisherSubscriber%28c%2B%2B%29 ROS/Tutorials/WritingPublisherSubscriber(c++) - ROS Wiki Writing the Publisher Node "Node" is the ROS term for an executable that is connected to the ROS network. Here we'll create a publisher ("talker") node which will continually broadcast a message. Change directory into the beginner_tutorials package, you cr wiki.ros.org

distance 값을 얻을 때 16UC1 encoding 된 데이터를 사용해야 하고 이것은 mm단위로 표현되어 있는 듯 하다. compressed depth image(8UC1)를 16UC1으로 변환 할때 opencv를 사용해서 변환하는 식은 안될거라네 이건 opencv 가 16bit 변환을 지원안한다? 라는 식인듯 그래서 http://wiki.ros.org/compressed_image_transport compressed_image_transport - ROS Wiki kinetic melodic noetic Show EOL distros: EOL distros: electric fuerte groovy hydro indigo jade lunar diamondback: Only showing info..