How to fly CF using hover_vrpn.launch
I'm trying to use ROS based on Optitrack. I used the next command : $ roslaunch crazyflie_demo hover_vrpn.launch uri:=radio//0/80/250K frame:=world x:=0 y:=0 z:=0.5 and i got this error: ERROR: cannot...
View ArticleMoving UR_Gazebo through test_move.py
I am not able to move the UR simulation with `ur_gazebo` using action client server like `test_move.py`. MoveIt with gazebo however works fine. Note: Using `ur_gazebo` on Ubuntu 14.04 with ROS Indigo...
View Articlecv bridge image size for a standard image is odd
Hi, I am working with the point grey camera and am using the flycap package with ROS on the jackal. Once I capture the image I use cv_bridge with bgr8 encoding to convert the raw image. The code in...
View ArticleCopter - exploring algorithm
Hello everyone I am new to ROS and Gazebo. I want to import a octocopter model (SDF) and CAD model (.STEP/ STL or similar) into a simulation environment. After selecting an area of the plane, I want...
View ArticleExplrative Path Planning using a Multicopter
Hello everybody I want to do a path planning and flight control simulation using ROS and Gezebo. I want to upload a 3D CAD file (.STL or .STEP) and plan a path around that model such that a copter...
View ArticleHow to view multiple cameras using cv_camera?
Hello, I am a ros newbie that is trying to work with cameras. My question is how can I scale up the use of cv_camera so that I can use multiple cameras at the same time? My understanding is that since...
View Articlehow we can run Motor Dynamixel MX-64 for electric gripper using ROS
how we can run Motor Dynamixel MX-64 for electric gripper using ROS Indigo , Mitsubishi industrial Robot
View Articlehow, i can control the industrial robot Mitsubishi RV4FL-Q robot through ROS
Hello Friends, Good Morning. i am working on vision feedback control system, i have performed the same operation through openCV window, now i want to develop an server controller for industrial robot...
View ArticleRun ROS node on target
Hi I wrote a ROS node and want to run the node on another target. So my plan was to copy the executable to the target and start it there with rosrun. The project is a CMake project and when i have the...
View Articlegazebo_ros_pkgs is installed, but directory is empty
I was following this vid tutorial on YouTube on controlling joints. https://www.youtube.com/watch?v=3qCh-p-hzCM. After I typed out the URDF, config and launch files, I ran the roslaunch command from...
View Articletf: Adding a frame to transforms from the past
Hi everyone, I have a question regarding the usage of tf and hope someone can help me answer it. The problem setup is the following: Imaging I have a robot with defined base_frame and I send the...
View ArticleCamera for Turtlebot 2 with Skeleton Tracking (2018)
Hi All, I am new to ROS and now exploring Turtlebot 2 and I would like to add-in the skeleton tracking features for my Turtlebot. After doing some web searching, I found that the skeleton tracking...
View ArticleIs It Safe to Subscribe Multiple Times to the Same Topic?
I would like to know whether it is a safe practice to subscribe multiple times (within the same C++ node) to the same topic. The purpose of this, is to assign two different callbacks to the reception...
View Articlerosdep install error
I am trying to install `cartographer_ros`. I was following the "Building and installation" instruction provided in [here](http://google-cartographer-ros.readthedocs.io/en/latest/) . At one step when I...
View ArticleHow to implement a semantic camera in ROS + Morse
Hi ROS community! :) I'm a pretty beginner in ROS and I'm trying to implement a [**semantic camera**](https://www.openrobots.org/morse/doc/1.2/user/sensors/semantic_camera.html) in ROS + Morse +...
View ArticleHow to implement a ROS + Morse Semantic Camera
Hi ROS community! :) I'm a pretty beginner in ROS and I'm trying to implement a [**semantic camera**](https://www.openrobots.org/morse/doc/1.2/user/sensors/semantic_camera.html) in ROS + Morse +...
View Articleerror with roslaunch after build using catkin_make_isolated
I installed cartographer as recommended [here](https://google-cartographer-ros.readthedocs.io/en/latest/) . Then, I installed `rosaria`, `rosaria_client` in the same workspace using ninja. Then, when...
View ArticleCan I make custom robot and envirnoment from scratch for gazebo
Hello, I want to make custom robot and envirnoment from scratch and I have no idea if it is even possible. If it can be done please guide me to the tools. I am totally new to ros and have no idea how...
View ArticleJETSON TX1 development kit shows very slow performance.
Hi, ı use jetson tx1 development kit but when ı setup jetpack 2.0 14.04 on this platform, it showed very bad performance. What might be the reason for this slowness? On the ROS platform, I thought...
View ArticleTransforming pose to be relative to map
Hello, I'm currently trying to use April Tags to localization my robot, but I have run into trouble with the pose I'm getting when a tag is detected. When the robot sees a tag, I get back a pose from...
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