stevemacenski's profile - overview

● Self-Learner   × 3

• DWA Cannot control at reasonable rate (controller_frequency)
• Difference between LOAM Continuous and LOAM Velodyne
• Move Base Publishing Y velocities

● Guru   × 8

• A definitive guide to launching multi-robot operations in ROS2
• Docker or snap for ROS projects
• TF_REPEATED_DATA error with robot_localization ukf package
• What will happen if I run 'rosclean purge'?
• Actionlib: preempt vs cancel
• Strategy to keep track of third-party ROS packages
• ROS for industry is a good choice or not?
• can I run ROS2 and ROS1 on one ubuntu at the same time?

● Rapid Responder   × 434

• Nav2 the robot moving backward turns around at the target goal
• Nav2 how to make robot goes backward
• When I subscribed to nav_msgs/Odometry data which is published at a frequency of 100hz, the callback processed the data slowly and the data was lost, thanks.
• Nav2 Costmap plugin - How to make cost changes persistent?
• AMCL odom_alpha1 etc settings
• navigation2) target pose(5.0, 0.0) but robot stops at (4.8, -0.56) and says 'reached the goal'
• which Nav2 topic message changes when reached the goal?
• Nav2 controller server high CPU load
• How to access the feeback of a BtActionNode in NAV2
• Nav2 controller tuning for vehicle with poor steering performance (slow response)
• Using Simple Commandar API for multi-robot systems
• Disable replanning feature in ROS2 navigation2.
• Nav2 global and local planner conflict
• How to combine local costmap from laserscan and update with /costmap_updates
• Obstacle layer in the layered costmap
• I am using in rviz2 the tool nav2 goal. But I want to cancel the robot's navigation when it is at a distance of less than 2 meters from an obstacle
• improve pointcloud streams
• Inverted Initial Localization in Nav2 for Ackermann Vehicle - Front and Rear Ends Misaligned in RViz
• [Nav2] Suggestions around single plan - controller only reactive navigation
• Best practices or code examples of how a "complete system" manages nodes
• [ROS2] How to abort an action goal before the server is shutdown?
• Will binaries for nav2 MPPI Controller be available in ROS Humble?
• Robot and sensor are out of map bounds (Local Costmap- Voxel Layer)
• Behavior tree plugin naming convention in .yaml config file
• Navigation based on gps waypoints (ROS2)
• nav2-smac-planner package not available on foxy
• when run colcon build Nav2_util package i have a error
• Can I install ros2 on non lts ubuntu (like ubuntu 22.10)?
• Are constant velocity commands produced by local planner from move_base possible?
• How to combine slam_toolbox and robot_localization using Nav2?
• nav2 params for minimum rotation speed of robot
• target goal pose is not stable when using navigation2
• ROS2 Nav2 Costmap2D not returning LETHAL_OBSTACLE when occupied cells are completely inside footprint
• nav2: go exactly to this point, not approximately
• Nav2 Writing a New Behavior Plugin
• Is there a local planner that will adhere to the global plan for the ackerman driven vehicle that I can use in Ros Noetic?
• Raising Exceptions in Subscriber Callbacks
• NAV2 - Gazebo does not load model
• SLAM_toolbox automaticly dectect initial pose
• Navigation goals not working with laser, sonar and slam_toolbox
• [SOLVED] How to subscribe a std_msgs::msg::String and copy in a std::string?
• How to build this package in ros2 foxy
• Adding custom message to existing package (Humble + Ubuntu22) fails
• Send an array or a list between nodes?
• ROS2 NAV2 map not served - help requested
• AMCL + Robot_localization conflicts in TF with Gazebo
• When doing mapping with slam_toolbox, can we move robot with goal setting?
• Add 2 footprint to the map ?
• spacenav installation.
• how to automatically restart the AMCL with the python code
• What is a "ROS2 Process" with regards to DDS Participants?
• Using Nav2 with external localization source
• NAV2:Sensor origin at (0.07, -0.00) is out of map bounds. The costmap cannot raytrace for it
• Navigation2 Planner plugin best practices
• Nav2 robot setup, local costmap not showing on Rviz
• How do I shutdown slam_toolbox node?
• Overlay Octomap Library ROS Noetic
• (unknown_cost_value) in costmap2D
• Steering angle from Regulated Pure Pursuit in Nav 2
• What is the maximum update frequency of Teb local planner?
• Why need launchfiles a copyright ?
• What is SimpleActionServer and SimpleActionClient for ros2?
• Recommended system specifications for running ROS2
• Cost value of a specific spot in cost map inflation layer?
• Suggestions on Mapping and Navigation
• Unable to use nav2 Behavior Tree Condition Node
• NO PATH! error when using global_planner with A*
• [Nav2] Best way of alternating between autonomous navigation and assisted teleop using `follow_waypoints` action server
• path smoother on Galactic branch
• Nav2 build failure: Colcon failied to build at Nav2_util
• ros2 build from source - delete build files?
• [slam_toolbox]: Message Filter dropping message: frame 'camera_depth_frame'...for reason 'Unknown'
• how to publish map in ros2 galactic?
• SmacPlannerHybrid cannot find path in tight environment
• DWB Controller struggles with navigation in tight scenarios
• Nav2 simple commander's getGlobalCostmap()
• Probing Blackboard Variables from CLI in Nav2
• [Nav2] Why use Voxel layer over 2D layer for RGBD sensor?
• Nav2 robot out of bounds (3D environment, almost 2D). Recovery mode problem.
• FollowPath doesn't fail
• Unable to change Nav2 BT tree
• [nav2] How to trigger the nav2 BT navigator from another node?
• Will Collision monitor be backported to Humble?
• Time stamps for the messages on /move_base/NavfnROS/plan
• [Nav2] Best way of including "emergency stop" range/cliff sensors in nav2
• Omnidirectional square robot in Nav2
• ROS2 Configuration management
• nav2 not showing costmaps for dynamic obstacles
• [ROS2][Nav2] Is there a way to expand the global costmap ?
• Suggestion for Custom Behaviour and Clarification of FollowPath Action Node in Behaviour Tree
• How to dynamically configure Nav2 bt_navigator xml ?
• Teb Local Planner Weight Parameters
• slam_toolbox offline slam
• Low frequency with robot_localization package
• [ROS2] Error in binding a callback to action client
• How to substitute Keepout with SpeedLimits in nav2
• Creating api or shareable library on ros2
• The obstacle is not on my cost map.
• How to get the robot trajectory plot in RViz2 by Slam toolbox
• How to avoid planner jumping between 2 possible path.
• ros2 autonomous robots in production
• Question about OccupancyGrid
• Pausing/resuming a navigation task using Nav2 Python Simple Commander
• When to use voxel layer and obstacle layer respectively?
• Detected object not appearing in costmap - Navigation2
• slam_toolbox life-long mapping issue
• RCLPY Managed Nodes for Foxy
• How to set/get ROS2 params from another node using Python?
• How to build gtest tests in ros2?
• Obstacles in camera blind spot are cleared from local costmap
• Why doesn't the nav2 controller plugin API have a method for failing?
• Why not allow for dynamic goal checker plugins?
• Why is SimpleGoalChecker so simple?
• Is there a way to extract specific info or lines from a ROS topic?
• navigation2 NavigateWithReplanning
• Slam Toolbox: Huge Drift in Heading when Mapping with a Depth Camera
• Cannot find slam_toolbox RViZ plugin
• Install ros-noetic-desktop-full on offline computer
• Is it possible to add two laser for navigation2
• what does ecl stand for?
• Simple local planner in Python?
• compilation error master branch navigation2
• How to create a package that only contains launch files
• Get all topics that publish a given message?
• tf2::toMsg(tf2::Vector3) in ROS2 Foxy?
• nav2: changing controller plugins manually during runtime
• How to integrate GPS data with SLAM gmapping
• publish and subscribe to numpy.ndarray topic in ROS2
• robot localizaton pkg for ros2
• Does exists any way to store topics data to an XML file?
• [ROS2] rclcpp::Node vs rclcpp_lifecycle::LifecycleNode
• bno055 IMU doesn't give absolute orientation
• ROS2 Foxy slam_toolbox crashes trying to load libconsole_bridge.so.1.0
• compatibility of ros melodic with ros kinetic
• TF_REPEATED_DATA error with robot_localization ukf package
• Tracing BT execution
• How to use pcl_ros with ROS 2 Eloquent?
• [Navigation] Is there a ROS Framework to integrate arbitrary local and global planners?
• Customizing a turtlbebot3 with larger wheels
• Odometry using IMU
• Is ROS 2 stable and ready for production use?
• how to connect vectornav VN-200 to rviz ?
• Which platform to use for ROS development?
• How to prepare sensor_msgs/CompressedImage without cv2?
• Why is point_cloud2.py missing from sensor_msgs in ROS2?
• Custom (Real) Vehicle interface advice Python vs C++
• nav2 teb 'lookup would require extrapolation into the future'
• LiDAR + IMU for 3D mapping?
• how to perform gmapping with two laser sensors attach on front and rear place of the robot ?
• Clarification on comment format for message definitions
• What is a good gmapping alternative?
• No joy package in noetic?
• Undefined reference to ros (melodic)
• Cannot change parameters in Navigation2
• Can costmap_2d's static_map be updated?
• Best practices for using slam toolbox without odometry
• Different Ubuntu and ROS versions on my robot and workstation
• Spatio temporal voxel layer: Clearing voxels not seen but included in fov
• ROS2 Python quaternion to euler
• How to get robot position in map?
• ackermann_msgs for Eloquent
• can I run ROS2 and ROS1 on one ubuntu at the same time?
• Obstacles in sensor deadzone
• Rviz give a transform error when not "unreliable"
• Can I change which topic usb_cam is publishing?
• ROS 2 launch: Python vs XML
• How can I get the same map size for all SLAM algorithms?
• How do you load urdf files in rviz2 with ROS2?
• publish a trajectory plan passing through some points.
• Autoware - Localization in the desert
• What is the difference between the Master branch of ROS2 and the dashing or eloquent branch?
• Is there a REP or standard for the /cmd_vel topic?
• How to estimate velocity from robot_pose_ekf
• Default parameter file in navigation2
• What is the default DDS implementation used in the Foxy release?
• robot_localization: Is significant yaw drift normal with ekf_localization_node without absolute yaw from imu?
• it is possible to simulate robot in rviz without launching in gazebo as a master ?
• RViz Panel: How not to freeze RViz?
• get_logger
• Which ROS2 launch is preferable python or xml?
• ROS2 slam toolbox localization mode config example
• about stereo publishing
• Retrieve interpolated transform from tf2_ros::Buffer
• ROS2 Custom Message (MSG)
• Why do we need to source setup.bash once in each terminal while running rosnode?
• ROS2 Eloquent loading map
• ROS for industry is a good choice or not?
• PID controller oscillations worsen when D term is increased
• gtest for ROS2
• Having two NodeHandle, one in each class.
• advice for SLAM with 3D lidar
• Moving the robot tears costmap apart
• What happens when two messages in a topic came one after another?
• How to compile C++ library inside ROS package?
• pausing move_base node
• Convert ros odometery orientation to pcl?
• Issue with integrating IMU, encoder odomtery with gps for localization using robot-localization package in ros2
• Why is not building package turtlebot3_gazebo on ROS2?
• Create directional zone
• Converting vector to orientation in sensor_msgs/Imu
• What's the meaning of "Don't forget to add the script to the CMakeLists.txt install rule"
• Face detection with usb_cam
• Extract a Volume of points from a PointCloud2 message
• Is 8-16GB sufficient to run ROS on robot?
• Are there any SBC with Intel CPU that is smaller and lighter than the NUC?
• NUC suggestion please
• How do I use rosdep install to install individual dependencies?
• Localisation score of Robot
• How to make rtabmap use both visual odometer and wheel odometer?
• Where should questions about index.ros.org be posted?
• How to create a simple dynamic (moving) environment in gazebo simulation
• Moving basic BOX
• geometry_msg
• Record images with timestamp
• How to get OpenCV 4 working with ROS Melodic?
• What is a cost map and where is it created?
• Frames in robot_localization: input messages and core state vector
• ros navigation driving principle
• rviz cannot set initial pose with button 2D Pose Estimate
• Which constructor of tf2_ros::TransformListener should I use?
• how to use zed camera without zed-ros-wrapper package
• How to run ROS on a System on Chip (SoC)?
• openai_ros_example shadow_tc RL dont work :(
• Laser scan topic returns many messages
• How to send data of a 3d camera connected with one ros computer into second ros computer to compute the data in second computer?
• Set x,y goals and move the robot
• Can I use a vertical laser on my robot?
• NavSat_Transform in Robot-Localization package does not publish anything to /odometry/gps
• gmapping Detected jump back in time of. Clearing TF buffer.
• ObstacleLayer and VoxelLayer don't generate obstacles
• Obtaining pointer types from message attributes in callbacks
• How to change amcl_pose publish rate/frequency?
• cannot compile RPLIDAR package
• How to localize and navigate in a 3D map?
• how gmapping gather odom data?
• Lowest end computer that will run ROS and all its tools
• Do you know how to create maps in gazebo from c++?
• Does ROS2 support keyed topic?
• Could not find a package configuration file provided by "tf2" with any of the following names
• how can i add ultrasonic sensor to husky simulation in gazebo?
• How to Subscribe to Imu data and broadcast transform
• Is it possible to do outdoor navigation using only GPS & IMU, without any map? If yes then please suggest how?
• robot_localization odom wrong frame
• Differences GMapping ROS/ROS 2
• Add camera data to obstacle layer or voxel layer in costmap?
• SLAM possibilities,where does it end ?
• Navigation without lidar
• can two turtlebots be controlled at the same time using a single workstation?
• How can I set the footprint of my robot in nav2?
• Does the cameras Basler can be connected to ROS without problem/directly or it is necessary to implement another module?
• AMCL package with rosbag
• Where can I find a fake localization node (ROS2)?
• How to cmd_vel a 90 degree turn?
• How to get pose from april tag topic tag_detection?
• TEB planner tuning help to follow a path strictly
• Set parameters in ROS2 using a yaml file without needing to build the package every time
• How can I build navigation2 from source?
• What is the rclcpp::node_interfaces::NodeBaseInterface for?
• How to uninstall ROS Melodic from Macbook Pro
• path planning for turtlebot using moveit planner
• Opencv Error
• Is navigation2 (ros2) configurable for non-holonomic robots?
• How to insert tf frames into HectorSLAM tf structure - using data from the Pixhawk 4 mini's IMU
• Upgrade to ros-melodic from ros-kinetic
• No message published to ROS Melodic from clearpath(Indigo)
• Are local copy of Costmaps used for recovery behaviours updated in real time?
• [ROS2] How to implement a sync service client in a node?
• Unable to use rosrun
• rtabmap: g2o, GTSAM
• How to combine HectorSLAM and RGB-D camera data to achieve 3D mapping?
• How do you create a log of published messages?
• What will happen if I run 'rosclean purge'?
• Is it correct to set topic names from parameters?
• How can I get currently used rmw_implementation of running nodes?
• Robot localization timestamp crash
• Efficient way to send a new large pointcloud (100.000+ Points)
• Limit the LDS range scan on the TurtleBot3
• How to install roscpp, sensor_msgs and pcl_ros on ubuntu?
• How to reboot Baxter computer
• Debugging tf frame with multiple parents
• Navigation2 support for 3D navigation (Drones)
• New Project! New ROS? Which ROS should I use?
• Local planner stops shortly before arriving at goal
• How to save nav_msgs/GetMap service and pass it into a function?
• How can I round /scan topic values?
• [ROS Warning] Unable to locate package velodyne_test build file
• How to subscribe to a topic?
• Move base navigation malfunctions
• ERROR: the following packages/stacks could not have their rosdep keys resolved to system dependencies
• package for topological navigation in ROS melodic
• Rviz extremely slow when showing urdf model
• Hardware Requirements ROS + Intel Realsense Depth Camera
• Time delay by lidar overlay image
• Is there a way to check if a certain coordinate is within the bounds of the map
• is it important to provide mass and inertia value in urdf file while using navigation stack?
• Customizing Turtlebot3: opencr position
• datatype/md5sum error
• A costmap - a general concept or a ROS concept?
• How cmd_vel is given while using amcl?
• /cmd_vel republished as TwistWithCovarianceStamped
• What is the mathematical relationship between parent and child frame in tf?
• finding the position of a block in a map
• Best practices for reproducibility
• use default arg in included file
• 3d particle filter based slam
• your experience about google cartographer + Intel d435 camera for indoor
• Architecture of the Navigaton2 stack
• Nodelets general confusion
• No module named 'tf2_sensor_msgs'
• Programming style question: getting data from odometry or tf?
• How to pass private parameters to multiple instances of node?
• ros melodic tf to tf2 migration
• how to eliminate robot's parts from lidar data?
• Will any ROS 1 or 2 distribution run on Ubuntu 19.10?
• Time synchronization between multiple sensors on multiple Raspberry Pi's
• Next Step After Hector-SLAM?
• Error when execute 'ros2 topic echo /hello_ros2 ros1_msgs/MyMsg'
• Remapping navigation topics for own nodes
• Issue with creating Pose[] pose array
• Using RRT* from OMPL as global planner in ROS
• Other APIs for ROS
• Teaching amcl and slam
• AMCL Covariance : define a "good" covariance
• how to solve the error of Could not find a package gazebo
• rostopic pub does not allow carriage return or line feed in the string
• intermittent error from imu sensor
• Build a a own navigation using RVIZ for initial and goal position
• Difference in movement between the input value and the actual movement
• gaussian noise param for gazebo_ros_imu
• how can I use info from two different subscribers?
• subcribing to 2 topics and publishing selected data in same node
• Number of TCP connections for a "bidirectional" topic?
• 2D navigation with 3D map
• ROS2 Run __params not affecting node
• In all the navigation tutorials the robot requires a pre-built map.Can i do the navigation in an unknown environment without a pre defined map,so that it moves without collision
• amcl parameters and robot localization without 2D Pose Estimate tool
• How to Split /cmd_vel into left and right wheel of 2WD robot?
• YuMi or Sawyer (or something else) for RL research?
• Robot Localization output incorrect for movement in Y axis with Vectornav IMU
• transform from odom,map to base_link
• filtered odometry overestimation
• Actionlib: preempt vs cancel
• print the number of received messages
• quaternions tf2?
• Does everyone use Docker?
• Why is A* used as global planner in move_base ?
• Inaccuracy in 2D map navigation.
• Laser Scan walls moving with robot
• what does "ros::WallTime::now().toSec()" returns?
• robot_localization package with custom sensor message
• Docker or snap for ROS projects
• Gmapping not recognizing /tf data
• [ROS2] collision avoidance(without map) using dwb_controller in navigation2
• IMU + Odometry Robot Localization Orientation Issue
• Packaging a stack in catkin for distribution?
• what releases are included in a sync?
• What global and local path planning algorithms do ros use?
• xacro: substitution args not supported: No module named 'rospkg'
• Mapping with Zed Camera
• How to compute the Linear/Angular velocity with respect to another frame!!
• which version of ROS to install?
• Stabilize the map => odom tf for localization
• How to edit parameters from the YAML file?
• Improve turtlebot localization in simulation for real world experiments
• Can you recommend a compatible USB cam?
• Different between private node handler and not private
• cartographer + move_base
• Autoware Mission Planning, Client has wrong datatype version: datatype/md5sum
• cartographer + move_base，Control loop missed its desired rate
• Is it possible to use the ouster os1 driver with nav2 in galactic as a lifecycle node?
• How to cancel ros2 action with ros2 cpp action client
• OMPL seg fault on Jetson tx2i
• When should laser scan data be converted to Point Cloud?
• navigation2 cpp Action with feedback examples
• Best Practices for Publishing Lots of Related Data
• ROS2 - Transforming a non-frame pose with TF2?
• nav2_util - no such file or directory tf2_geometry_msgs
• How SBPL planner generates path that avoids real-time obstacles.
• slam_toolbox: map - odom transform stuck at time: 0.200
• How to clear the costmap from other nodes (navigation2)
• slam_toolbox for general case SLAM and localization
• Nav2 multi_tb3_simulation_launch.py - cannot get plugin param value for wait_at_waypoint
• Behavior Tree Callback Not Running
• Using NavigateThroughPoses in foxy
• BT-Navigator transition error
• laser_geometry ros2 example
• New action node for BT linked to ROS2 service
• How to set the waypoint for ros autonomous navigation？
• nav2 Controller server not receiving poses sent through `FollowPath` action
• What are some use cases of changing the fixed frame in rviz ?
• Setting up parameters for selective application of nav2 libraries
• Best nav2 controller/planner for a near zero-turn differential-ackermann steer mixed rover
• Best VSLAM Algorithm for Outdoor Navigation
• Sending my own path to ROS Navigation stack, Where can I locate the 'internal' nav_msgs/Path in the code?
• How to use multiple laser scanners for slam and navigation
• Navigation2:[navfn_planner] Original error: GetCostmap service client: async_send_request failed
• get cells of costmap_2d::Costmap2D
• nav2_behavior_tree does not build
• How to get nav2 BT state/running nodes
• Writing my own navigation code with information gathered from LiDar sensor using ROS's SLAM package.
• ROS2: issues building some packages found in ros2/demos and ros2/examples
• [slam_toolbox]: Message Filter dropping message: for reason 'discarding message because the queue is full'
• Will ros2 (Foxy Fitzroy) work on the latest version of Ubuntu (currently 21.10)? If not, will it be supported in the future? Should I install Ubuntu Focal Fossa (20.04) instead?
• Global planner with curvature limit
• A definitive guide to launching multi-robot operations in ROS2
• using asio in a ros2 package
• Where is the gmapping.cpp located in an installation from deb packages?
• Dose Nav2 support Truck (a tractor with a trailer) Naviagation?
• ROS2 colcon build nav2_regulated_pure_pursuit_controller error
• [nav2] nav2_gazebo_spawner does not support specifying yaw
• how to inflate STVL's obstacles
• [Nav2] 3D obstacle avoidance with Realsense D435(i)
• shared pointer vs make shared ros2
• Strategy to keep track of third-party ROS packages
• Nav2 navigation while mapping setup
• Best way to add package's models path to GAZEBO_MODEL_PATH in ROS2?
• Bond vs Software_Watchdog? [ROS2]
• How do you make an /odom node for a physical robot in ros2?(rviz not showing updated /base_link)
• ROS2 one action client calling multiple servers
• galactic keepout_filter inflation
• waypoint navigation in warehouse conditions
• Binaries slam toolbox galactic
• [Nav2] Ackermann drive robot controller parameters
• Getting node name namespace from rclcpp
• Nav2 - global_planner does not avoid obstacles
• waitForMessage ROS2 equivalent?
• Navigation2 not starting properly
• Multiple initialpose candidates for amcl
• A less-asyncronous way of using ROS2 action clients?
• Can a ROS 2 TF buffer be queried in time-critical code?
• Is there an equalent for base_local_planner::FootprintHelper().getLineCells in nav2?
• Error occurs when trying to build in eloquent
• Create wall timer using callback with parameters - ROS2, C++
• Smac Planner - Is it possible to make the robot Reverse (without changing heading)

● Student   × 1

• keeping state: Latched Topics vs ROS Parameters vs Service Request

● Critic   × 1

• what to choose between IMU and GYRO

● Good Answer   × 39

• Which ROS2 launch is preferable python or xml?
• waitForMessage ROS2 equivalent?
• How to combine slam_toolbox and robot_localization using Nav2?
• A less-asyncronous way of using ROS2 action clients?
• Ros2 Galactic Nav2 - /scan offering incompatible QoS
• IMU + Odometry Robot Localization Orientation Issue
• Suggestions on Mapping and Navigation
• Why RRT based algorithms are not the default choice in ROS for mobile robots ?
• [Nav2] Why use Voxel layer over 2D layer for RGBD sensor?
• Different between private node handler and not private
• ROS2 slam toolbox localization mode config example
• 2D navigation with 3D map
• How to cmd_vel a 90 degree turn?
• [ROS2] rclcpp::Node vs rclcpp_lifecycle::LifecycleNode
• compatibility of ros melodic with ros kinetic
• What will happen if I run 'rosclean purge'?
• Custom (Real) Vehicle interface advice Python vs C++
• Docker or snap for ROS projects
• can I run ROS2 and ROS1 on one ubuntu at the same time?
• ROS for industry is a good choice or not?
• Actionlib: preempt vs cancel
• Is it possible to use turtlebot 2 with crystal?
• Programming style question: getting data from odometry or tf?
• Why Empty message in std_msg?
• Why is A* used as global planner in move_base ?
• ROS YOLO object dimensions measure
• TF_REPEATED_DATA error with robot_localization ukf package
• Indoor localization with 2D lidar and IMU
• A definitive guide to launching multi-robot operations in ROS2
• Difference between LOAM Continuous and LOAM Velodyne
• Strategy to keep track of third-party ROS packages
• Odometry using IMU
• Differences GMapping ROS/ROS 2
• Getting node name namespace from rclcpp
• Can a ROS 2 TF buffer be queried in time-critical code?
• Architecture of the Navigaton2 stack
• Has the IMU sensor to be located in the center of the wheels?
• Subscribe vs. waitForMessage for a 30hz topic
• Interpreting the data published on /camera_info topic

● Famous Question   × 14

• ROS2 Map of Parameters
• What's the current status of Real-time in ROS2?
• ROS2 Run __params not affecting node
• rospy publishers using tons of CPU
• Difference between LOAM Continuous and LOAM Velodyne
• How to find the number of times a package has been installed for apt
• Move Base Publishing Y velocities
• What amount of odometry drift would be considered having an accurate base?
• keeping state: Latched Topics vs ROS Parameters vs Service Request
• Functional difference between ROS2 spin_some, spin_once, and spin_until_future
• DWA Cannot control at reasonable rate (controller_frequency)
• Gazebo model (stl, dae) not spawning on ground plane, floating
• Multiple robots with ROS-I / ABB driver
• robot_localization Ouputs NaNs when IMU/Odom messages not NaNing, works in RobotPoseEKF

● Notable Question   × 14

• What's the current status of Real-time in ROS2?
• ROS2 Run __params not affecting node
• Difference between LOAM Continuous and LOAM Velodyne
• How to find the number of times a package has been installed for apt
• ROS2 Map of Parameters
• What amount of odometry drift would be considered having an accurate base?
• Move Base Publishing Y velocities
• rospy publishers using tons of CPU
• Functional difference between ROS2 spin_some, spin_once, and spin_until_future
• keeping state: Latched Topics vs ROS Parameters vs Service Request
• DWA Cannot control at reasonable rate (controller_frequency)
• Gazebo model (stl, dae) not spawning on ground plane, floating
• Multiple robots with ROS-I / ABB driver
• robot_localization Ouputs NaNs when IMU/Odom messages not NaNing, works in RobotPoseEKF

● Great Answer   × 9

• Docker or snap for ROS projects
• TF_REPEATED_DATA error with robot_localization ukf package
• A definitive guide to launching multi-robot operations in ROS2
• What will happen if I run 'rosclean purge'?
• Actionlib: preempt vs cancel
• Strategy to keep track of third-party ROS packages
• Why is A* used as global planner in move_base ?
• ROS for industry is a good choice or not?
• can I run ROS2 and ROS1 on one ubuntu at the same time?

● Necromancer   × 8

• LifecycleNode / ManagedNode in rclpy?
• [ROS2] Navigation2 only planning short local plan
• RegulatedPurePursuitController detected a collision ahead but robot doesn't stop
• DWA Cannot control at reasonable rate (controller_frequency)
• how to clear local cost map?
• Smac Planner - Random Loops are getting generated during turns.
• local_cosmap remark but can't clear
• How to make call to multiple services in parallel?

● Good Question   × 2

• Functional difference between ROS2 spin_some, spin_once, and spin_until_future
• What's the current status of Real-time in ROS2?

● Popular Question   × 14

• What's the current status of Real-time in ROS2?
• ROS2 Map of Parameters
• ROS2 Run __params not affecting node
• Difference between LOAM Continuous and LOAM Velodyne
• How to find the number of times a package has been installed for apt
• What amount of odometry drift would be considered having an accurate base?
• Functional difference between ROS2 spin_some, spin_once, and spin_until_future
• rospy publishers using tons of CPU
• keeping state: Latched Topics vs ROS Parameters vs Service Request
• Move Base Publishing Y velocities
• DWA Cannot control at reasonable rate (controller_frequency)
• Gazebo model (stl, dae) not spawning on ground plane, floating
• Multiple robots with ROS-I / ABB driver
• robot_localization Ouputs NaNs when IMU/Odom messages not NaNing, works in RobotPoseEKF

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• Publishing at a required frequency

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• Multiple robots with ROS-I / ABB driver

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• How to send right velocity to model in gazebo?

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• robot_localization Ouputs NaNs when IMU/Odom messages not NaNing, works in RobotPoseEKF

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• robot_localization Ouputs NaNs when IMU/Odom messages not NaNing, works in RobotPoseEKF

● Teacher   × 1

• Move Base Publishing Y velocities

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• Interpreting the data published on /camera_info topic

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• Docker or snap for ROS projects

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• What is ConstPtr&?

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• [deleted].

● Nice Answer   × 99

• Nav2 and costmap_2d nodes
• ROS2 NAV2 map not served - help requested
• [Nav2] Suggestions around single plan - controller only reactive navigation
• I am using in rviz2 the tool nav2 goal. But I want to cancel the robot's navigation when it is at a distance of less than 2 meters from an obstacle
• How to combine slam_toolbox and robot_localization using Nav2?
• Nav2 robot setup, local costmap not showing on Rviz
• shared pointer vs make shared ros2
• LifecycleNode / ManagedNode in rclpy?
• How to use multiple laser scanners for slam and navigation
• amcl parameters and robot localization without 2D Pose Estimate tool
• Navigation2 Planner plugin best practices
• Recommended system specifications for running ROS2
• IMU + Odometry Robot Localization Orientation Issue
• What is the maximum update frequency of Teb local planner?
• Why need launchfiles a copyright ?
• Suggestions on Mapping and Navigation
• Nav2 build failure: Colcon failied to build at Nav2_util
• Why RRT based algorithms are not the default choice in ROS for mobile robots ?
• [Nav2] Why use Voxel layer over 2D layer for RGBD sensor?
• Suggestion for Custom Behaviour and Clarification of FollowPath Action Node in Behaviour Tree
• ROS 2 launch: Python vs XML
• Which ROS2 launch is preferable python or xml?
• gmapping Detected jump back in time of. Clearing TF buffer.
• Ros2 Galactic Nav2 - /scan offering incompatible QoS
• benchmarking between SLAM alghoritms
• advice for SLAM with 3D lidar
• Why is SimpleGoalChecker so simple?
• Upgrade to ros-melodic from ros-kinetic
• Can costmap_2d's static_map be updated?
• what does ecl stand for?
• Unable to use rosrun
• Navigation2 support for 3D navigation (Drones)
• TF_REPEATED_DATA error with robot_localization ukf package
• Odometry using IMU
• [ROS2] rclcpp::Node vs rclcpp_lifecycle::LifecycleNode
• compatibility of ros melodic with ros kinetic
• Which platform to use for ROS development?
• Custom (Real) Vehicle interface advice Python vs C++
• New Project! New ROS? Which ROS should I use?
• can I run ROS2 and ROS1 on one ubuntu at the same time?
• gtest for ROS2
• What will happen if I run 'rosclean purge'?
• ROS for industry is a good choice or not?
• How to compile C++ library inside ROS package?
• pausing move_base node
• Docker or snap for ROS projects
• How to change amcl_pose publish rate/frequency?
• Differences GMapping ROS/ROS 2
• Add camera data to obstacle layer or voxel layer in costmap?
• How to cmd_vel a 90 degree turn?
• How to combine HectorSLAM and RGB-D camera data to achieve 3D mapping?
• Local planner stops shortly before arriving at goal
• How can I round /scan topic values?
• Best practices for reproducibility
• Architecture of the Navigaton2 stack
• How to pass private parameters to multiple instances of node?
• Nodelets general confusion
• Programming style question: getting data from odometry or tf?
• use IMU in differential robot?
• Number of TCP connections for a "bidirectional" topic?
• Why Empty message in std_msg?
• 2D navigation with 3D map
• In all the navigation tutorials the robot requires a pre-built map.Can i do the navigation in an unknown environment without a pre defined map,so that it moves without collision
• Actionlib: preempt vs cancel
• Robot Localization output incorrect for movement in Y axis with Vectornav IMU
• Why is A* used as global planner in move_base ?
• Improve turtlebot localization in simulation for real world experiments
• Indoor localization with 2D lidar and IMU
• Different between private node handler and not private
• cartographer + move_base
• ROS YOLO object dimensions measure
• Problem with tf tutorial
• Has the IMU sensor to be located in the center of the wheels?
• How to run Robot web tools at Non Internet environment?
• Difference between LOAM Continuous and LOAM Velodyne
• How to use data from a callback function in another function
• slam_toolbox for general case SLAM and localization
• How to publish tf between base_link camera
• laser_geometry ros2 example
• A definitive guide to launching multi-robot operations in ROS2
• ROS2 slam toolbox localization mode config example
• How to create a package that only contains launch files
• What is a good gmapping alternative?
• Nav2 navigation while mapping setup
• Strategy to keep track of third-party ROS packages
• how to clear local cost map?
• What global and local path planning algorithms do ros use?
• Bond vs Software_Watchdog? [ROS2]
• Getting node name namespace from rclcpp
• waitForMessage ROS2 equivalent?
• nav2 teb 'lookup would require extrapolation into the future'
• A less-asyncronous way of using ROS2 action clients?
• Can a ROS 2 TF buffer be queried in time-critical code?
• Is it possible to use turtlebot 2 with crystal?
• How to setup a docker for ROS kinetic ?
• Subscribe vs. waitForMessage for a 30hz topic
• Interpreting the data published on /camera_info topic
• Why does the nav2d_karto mapper.yaml have particles?
• How to implement a temporal occupancy grid?

● Nice Question   × 3

• What's the current status of Real-time in ROS2?
• Functional difference between ROS2 spin_some, spin_once, and spin_until_future
• keeping state: Latched Topics vs ROS Parameters vs Service Request

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• What's the current status of Real-time in ROS2?

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• What's the current status of Real-time in ROS2?

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• What's the current status of Real-time in ROS2?
• Functional difference between ROS2 spin_some, spin_once, and spin_until_future