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ROS Answers archive This is the static archive of questions from ROS Answers archive Answers
TF_OLD_DATA ignoring data from the past for frame base . . . - ROS Answers By doing an echo of my tf topic I am able to see the timestamps of the different transforms, and I realized that those timestamps are given in seconds from 1970, whereas the message I get from Rviz about the base_link frame gives the time in seconds since the moment I launched the simulation:
Unable to launch a simulation that was working - ROS Answers If you've set ROS_MASTER_URI, ROS_IP or ROS_HOSTNAME to specific values and your network configuration has changed (fi: you're now using a different IP address) then things can stop working "without changing anything"
Cannot locate rosdep definition - ROS Answers archive There is no ROS package called gazebo_plugin, nor is there an Ubuntu package (in your case) that is called gazebo_plugin, so rosdep cannot determine which package should be installed to fulfil the dependency It's likely that this is a typo: there is a ROS package called gazebo_plugins (note the s at the end there)
Only getting NaN values when using depthimage_to_laserscan - ROS . . . I am working on Ubuntu20 04LTS and using ROS Noetic The depthimage to laserscan node is subscribing to the image topic where I publish the depth images that were converted to the ROS image message with 32FC1 encoding and saved into a rosbag file The values I get for laserscan have all NaN values in ranges: frame id: "camera depth_frame"
Is clock being published? - ROS Answers archive Details given below I am using Apollo Auto (open source autonomous car project) which uses ros platform for communication between the nodes Basically Apollo uses docker environment to run the project I want to publish some messages from my host system (that is outside the docker) and subscribe the published messages in Apollo (inside the