Stefan Kohlbrecher's profile - overview

● Guru   × 47

• error in publishing an Eigen::Matrix using rostopic
• map_server GetMap
• use of rtabmap with 3D lidars
• How to enter multi-line code in our questions?
• move_base and extrapolation errors into the future
• hector_slam: how to load a saved map (and perform localization)
• Does a node receive messages sent by itself on a topic that it is both publishing and subscribing to?
• Simulating a thermal camera in gazebo
• Husky perfect localization (Gazebo Positioning System)
• How to Use Laser Data
• Clear Map from HectorMapping
• Using hector slam with amcl for localization in a pre-made map
• SLAM without odometry: gmapping or hector_slam?
• Path planning for car-like robots
• ros launch issue
• How can I create robot model and simulate with ROS?
• problem in geometry_msgs::Pose
• Which robot can or should I get to run ROS?
• Hector Slam
• Has anyone worked with a mobile robot simulation on terrain in Gazebo?
• How do I publish gazebo position of a robot model on odometry topic.
• URDF or Xacro?
• [rospack] Error: package 'map_server' not found
• Could IK solver called by arm_navigation auto-generated file work for 5 DOF manipulator
• How to visualize a frame pose as a path
• Weird situation with kinect mounted on PR2
• is there any ROS package for exploration in Groovy (ubuntu 12.10)?
• regarding visual slam
• Debugging ROS package with Qtcreator???
• When to use Gmapping??
• How to understand robot orientation from quaternion yaw angle
• How to change the height of the Kinect mounted in turtlebot simulator
• Navigation using real time generate map without a known map
• How to Mark a detected victim in hector slam
• Get package path with rospy
• lookupTransform base_link to laser0_frame timed out. Could not transform laser scan into base_frame
• Problem with the robot model collapsing
• Depth image from a Disparity image
• add opencv to indigo
• roscore, roswtf commands not found
• hector_slam with odometry?
• Maps, is it better to publish on a topic or use a service and have other nodes request a map?
• Difference between .dae and .stl files
• What is the different between RGBD-6D-SLAM and rgbdslam
• Phyton vs c++
• map.yaml format
• The difference between Spin() and SpinOnce().

● Nice Answer   × 334

• How to create soft objects (wheel tires) in gazebo?
• How to detect loop closure after scan matching?
• How to change the robot_description paramter for the joint_trajectory_controller
• Where is the source code of the default rviz plugins?
• Octomap slows down with increase in map size
• ROS navigation AMCL with extended kalman filter
• Converting a XYZ Point cloud to a depth image
• can hector_slam be used to create 3D models?
• Display image in RVIZ
• gmapping using a virtual turtlebot robot with a rplidar
• Rebuilding single package with catkin
• TF_OLD_DATA ignoring data from the past for frame base_footprint
• rviz/gazebo path plot
• How to update map to odom with corrections from SLAM ?
• gmapping creates no map
• Gazebo laser plug-in fails to publish scan results in rviz
• Example of how to simulate humanoid biped using ROS/Gazebo
• Inconsistent plot vs numerical data display in rqt_bag
• [Moveit/Gazebo] Controller failed with error code GOAL_TOLERANCE_VIOLATED
• octomap_server problems
• How Hector Autonomous Rescue Robot Detect QRCodes?
• Matching RGB image with Point Cloud
• How to set collision for octomap in moveit?
• Nodelets general confusion
• Creating a Gazebo World using a Ground Truth Model
• rviz crashing after apt update
• What are the dimensions of the generic quadrotor in the hector quadrotor package?
• Can i use MOveIt package in ROS without closed loop motor control?
• How to interface ros controller and orocos?
• How to control the speed of urdf model using moveit
• Joints of my model sway in gazebo
• how can i convert laser scan to point cloud with laser_geometry?
• [SOLVED] Getting map co-ordinates
• Neato XV-11 LIDAR hector_slam mapping without odometry at walking speeds?
• Problem with data from subscriber not going anywhere
• Visualizing continuous and revolute joint types in rviz
• Which robot can or should I get to run ROS?
• Time jumped forward
• simulating kinect sensor in Gazebo
• ROS topic communication between robots?
• ROSJava Laserscan
• Small Single Board Computers suitable for ROS
• How can I create robot model and simulate with ROS?
• What happened if I install two version of ROS?
• Path planning for car-like robots
• "laser_geometry.h" cannot be used
• hector_slam under ROS electric
• Brushless Motor Control
• About geometry_msgs/Twist
• create robot model for rviz
• subscribing to data from gazebo plugin
• rosserial arduino rosmake error
• roscore, roswtf commands not found
• Modeling URDF files using Blender and exporting to COLLADA format
• URDF for a sphere
• Smooth Shading for environments in gazebo
• RVIZ display 2d probabilistic map
• robot_pose_ekf wrong?
• Mesh rendering in RViz
• Restart a package with a clean state
• Teleop and Network disconnections
• ros mapping
• Do not have any equipment
• Use 3-Axis Accelerometer to calculate theta?
• Transfer only a ROI of an OccupancyGrid
• ros launch issue
• How to visualize a frame pose as a path
• How to generate map with hector_slam and Kinect
• Slam gmapping problems
• Kinect + Gazebo
• How to simulate food items in gazebo
• Simulating a thermal camera in gazebo
• How to check the pointcloud data rate from the turtlebot laptop to the workstation?
• Quaternion has length close to zero... discarding as navigation goal, why?
• Easiest way to show travelled path on gmapping generated map
• Kinect for Windows
• scale problems with gazebo
• piloting an UAV model in Gazebo.
• problem in geometry_msgs::Pose
• Copying STL files to gazebo_worlds
• hector_slam tf error
• Could IK solver called by arm_navigation auto-generated file work for 5 DOF manipulator
• map message
• markers python
• How can UAVs be simulated using ROS?
• gazebo-1 has died; rosmake hector_quadrotor error
• Where is the commenting tool?
• how can I build probability maps with gmapping
• very strange stuff in rviz
• Hector Slam
• Debugging ROS package with Qtcreator???
• background subtraction of pointcloud
• How a robot navigation algorithm can be evaluate?
• lookupTransform base_link to laser0_frame timed out. Could not transform laser scan into base_frame
• Sick TiM300 Laserscanner Driver
• Hector mapping stabilized frame
• regarding visual slam
• Is there a way to subscribe to the uncertainty of Gmapping?
• gmapping + iRobot Create + Hokuyo laser scanner
• Running Turtlebot with viso2_ros (Linear odometry now working)
• How to change the height of the Kinect mounted in turtlebot simulator
• map_server GetMap
• Has anyone worked with a mobile robot simulation on terrain in Gazebo?
• How to understand robot orientation from quaternion yaw angle
• hector_mapping set-up
• Can't see my python node in rosnode list?
• To understand the concept of Origin field from map_server
• Calculating inertial matrix for Gazebo
• Pointcloud data to mesh conversion
• hector_mapping reducing cpu consumption?
• How to set the initial pose for the robot in navigation?
• Invalid joystick when I run ros in a virtual machine
• EKF Slam problem with how to calculate Landmarks with Laser Data
• Modify position in hector_mapping code?
• Visual servoing with ROS
• How to import Collada (.dae) files into Gazebo (ROS/Fuerte)?
• map.yaml format
• What is the different between RGBD-6D-SLAM and rgbdslam
• Do I have to rectify/crop images before process them with viso2_ros mono_odometry?
• Waypoints with orientation + Smooth trajectory
• Gmapping overwrites map
• ar_kinect compile error conversion from ‘tf::Transform’ to non-scalar type ‘btTransform’ requested
• hector_slam: how to load a saved map (and perform localization)
• Using AMCL without wheel odometry (only laser + IMU)
• When to use Gmapping??
• Navigation using real time generate map without a known map
• Is there any package for omnidirectional drive robot for gazebo?
• Unable to Spawn a coffee_cup in a Gazebo World
• Teleop based control of a custom vehicle
• Lots of delay when trying to teleop with a Turtlebot
• installing hector_slam package in fuerte
• rospack became agonizingly slow
• Problem with hector_slam ?
• ar_track_alvar not 32-bit compatible?
• Why is Groovy's rosmake so slow?
• is there any ROS package for exploration in Groovy (ubuntu 12.10)?
• deformation with ros an gazebo
• joystick control/navigation using python in ros
• Weird situation with kinect mounted on PR2
• How to Mark a detected victim in hector slam
• Visualize data during experiment: Gazebo/RVIZ
• Searching in map
• How to time-indexed the ros output txt file
• move_base with own localization
• How to extract information from hector slam for autonomous navigation
• error in publishing an Eigen::Matrix using rostopic
• Is there a way to recompose messages from command line?
• Oddity in rxplot
• roscore fails to start after latest update? (precise, groovy, AMD64)
• unit for theta coming from hector mapping or laser scan matcher
• Setting the scan_subscriber_queue_size
• Hector_SLAM, changing from Fuerte to Groovy?
• "SearchDir angle change too large" kills hector_mapping
• gmapping missing spots
• Get package path with rospy
• publishing topics and tf data through wireless
• implementing slam on differential drive robot
• Pioneer 3DX strange sonar behavior
• hector_slam with odometry?
• Getting "maps" to a remote location with hector_mapping
• gmapping and navigation beyond range of LIDAR sensor
• has anyone successfully used openrave to to IK for robots containing closed loops?
• Using Fuerte and Groovy in the same machine?
• Change laser range while stage is running
• Maps, is it better to publish on a topic or use a service and have other nodes request a map?
• CMake: PCL and Ros Hydro
• Old data keeps being visualized in rviz
• PCL package on ROS Hydro compiling errors
• Why search field do an "OR" search, not an "AND" search
• SLAM without odometry: gmapping or hector_slam?
• How to integrate Qt with ROS ?
• Multiple Kinects in Rviz, image fusion?
• How do I solve undefined reference to interactive_markers
• Rotating Hokuyo on the Atlas?
• Robot estimated pose
• problem with tf No transform from /laser_link to frame /odom
• different version topics
• Image transport issue in rviz groovy beta 1
• Using hector slam with amcl for localization in a pre-made map
• How can i add and detect qrcode on my map?
• Problem with laser scan Hokuyo and windows/glass.
• Linear Algebra operations with ROS
• ros gmapping change scan topic
• Dynamic Robot Model Implementation
• how can i merge some maps?
• why is my code slower online than offline?
• Project point cloud to image coordinates using camerainfo
• How to Use Laser Data
• What tools were used to create PR2's rviz model?
• trajectory saving problem
• Question on topic publication
• Why is there a Twist in Odometry message
• Simulating a Camera with a Pan Tilt Unit
• How to write a driver for Hokuyo Laser Scanner?
• Existing motion planner for double Ackermann kynematics?
• Two nodes on a distant system - do messages travel network?
• Gazebo simulation time speed up.
• about SLAM
• E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
• Use a catkin package that depends on a rosbuild package
• KDL Kinematics Solver Limitations
• Phyton vs c++
• which sensor better to use for slam?
• how to calibrate a 2D camera with respect to Kinect?
• ROS computation graph management solution
• costmap mapping the map without noise
• How to enable a robot to ROS
• quadrotor with laser scanner?
• Depth image from a Disparity image
• What do hector_slam with /odom?
• move_base and extrapolation errors into the future
• Simulate urban city roads
• RVIZ trace robot path
• Use Fuerte and Hydro
• Can a low cost IMU compensate for wheel slip induced heading errors?
• add opencv to indigo
• How to run hector_slam with bag file of laser scanner?
• Can I make a directory in launch file?
• Best Hokuyo LiDAR unit
• Building OpenCV codes on ROS
• The difference between Spin() and SpinOnce().
• tf impact on perf (tf design)
• How to install ROS indigo in Ubuntu 14.04 trusty 64-bit?
• Requiring deep understanding of robot_state_publisher and TF
• Grab Single Frame From Gazebo Camera
• Exploration tutorial for gazebo/erratic or P3DX
• A package made for lower than Hydro(catkin) distribution, can be used in Hydro ??
• rc_control controllers modes
• *** glibc detected *** /opt/ros/groovy/lib/rviz/rviz: free(): invalid next size (normal): 0x000000000526d7f0 ***
• perspective or projection matrix
• How to subscribe two images simultaneously in opencv c++
• Suggestions for a small ground rover that runs ROS?
• Can't include message of other package in Catkin
• Interactive markers: launch on robot, or on desktop?
• hector_slam tutorial errors
• Loading generated maps into Gazebo
• Ros timing issue
• Is it possible to use Fuerte on 14.04?
• Trouble Including rosbag
• ros_control: Difficulty getting custom hardware interface to run
• what are the prerequisites to learn ros and make the application on ros
• Odometry jump
• How to bind a node to a specific cpu core?
• multiple robots and ros_control
• URDF limits differential robot
• Problem connecting hokuyo ethernet LIDAR
• Localization issue using gmapping and odom data.
• Code for keeping a list of the "Pose" that Turtlebot has visited.
• Moveit Forward Kinematics for Empty Joint State
• feature based slam mapping
• QR Code detection?
• Any idea to implement a generic controller for a Quadcopter?
• show robot trajectory in rviz real-time
• Hector Trajectory path is not flowing smoothly
• kdl Inverse Kinematics Solver
• Clear Map from HectorMapping
• How do I use ROS in Visual Studio 2013
• PCL Header timestamp
• Using Hector mapping for odometry with amcl for localization in a pre given map
• Difference between .dae and .stl files
• Problem with the robot model collapsing
• ROS using C++ 11 & How to Use With Catkin?
• displaying the robot's actual trajectory in RViz
• IMU plugin erratic acceleration measurements
• visualizing gazebo model in rviz
• Hector mapping does not display the map well
• Theorycrafting: "Virtual" walls for husky navigation
• sick tim no node ?
• launch a .stl file
• help me with a simulator that can be used to simulate obstacle avoidance of manipulators using potential field ?
• Is there any workspace analysis tool in ROS for a robot arm?
• catkin_tools and qtcreator
• Independently change angular and linear velocities (cmd_vel)
• Call code before launching ?
• Huge drift using single IMU state estimation
• Why is HierarchicalArray2D used in openslam_gmapping?
• Book: Learning ROS for Robotics Programming, 2nd Edn; Chapter 5 - USB Camera is not running
• How to create OccupancyGrid from Laser scan data and Pose (odometry)?
• Does gmapping resize the map if required?
• Deleted src files after catkin_make
• use of rtabmap with 3D lidars
• Node doesn't receive message, but rostopic list/info sees it
• Give 'manual' goal to Hector Exploration Planner
• Objects spawning and falling down immediately in Gazebo
• Ros Multiple machine Gmapping fails
• How to call callback at a specific period?
• RViz - RobotModel -> base_link -> 'show trail' history
• Gazebo camera plugin rendering in wrong order on Virtual Machine
• How to change turtlebot gazebo FOV and make it 270 degree?
• Camera calibration and fish eye cameras
• Does a node receive messages sent by itself on a topic that it is both publishing and subscribing to?
• [rospack] Error: package 'map_server' not found
• URDF and Mesh for Pioneer 3AT
• hector_mapping map overlap
• Decimate Collada/urdf for faster collision checking in MoveIt
• How much does the /odom frame matter for hector_slam?
• Is raspberry pi 3 suitable for testing ros with pcl for computer vision purpose?
• Issues with RViz and Displaying IMU data
• Is it possible to remap topics at runtime?
• how can i solve the forward kinematics and get the cartesian positions for the links on a arm?
• How to create directories in a ROS launch file
• Hydro and Indigo in parallel?
• image_proc not working as expected
• How can I calibrate low resolution cameras?
• How to use/install OpenCV with Indigo?
• improve odom by laserscan
• Multiple action clients to one server and correct preemption notifications
• How do I get a package from Electric EMYS to work in Indigo Igloo.
• tf_listener error transform.tf::Transform::getOrigin does not have class type
• How to run "tf view_frames" for a remapped tf
• can kinetic work with indigo over a network?
• Google Cartographer Successes on Turtlebot (Or Similar?)
• Drawing Bounding Box for a rotated object
• Create two nodes in the same package
• D-H table for youbot
• How to enter multi-line code in our questions?
• How to enter multi-line code in our questions?
• Cannot build hector_localization
• change Gazebo initial position of the arm
• Ground truth from the jackal robot
• How to Improve Inaccurate ROS Timer
• URDF or Xacro?
• Rviz: Display image in 3D scene
• Thread Scheduling in ROS
• How to merge two different topics and create a new one?
• How can I perform loop closure in graph SLAM ?
• How can I have a copy of same robot in Gazebo simulation
• Husky perfect localization (Gazebo Positioning System)
• Data loss between publisher and subscriber
• Message size of >=520 bytes result in inconsistent publish timing
• ROS callback invoked faster than publishing rate
• How to make a heat map of WiFi signal in Rviz?
• How do I publish gazebo position of a robot model on odometry topic.

● Rapid Responder   × 7

• Camera view occluded by robot body, how to deal for SLAM?
• Is there a way to publish a video file so it can be displayed with a camera display in RViz? (solved)
• Nodelets general confusion
• Motor controllers recommendation
• Can't see my python node in rosnode list?
• Subsampling a bagfile
• RViz Grid Direction

● Notable Question   × 62

• rosserial Esp8266HelloWorld example does not work with UDP mode
• roslaunch Python arg substitution finds wrong package folder path?
• How to use a Arduino Due in a CMake-based package using rosserial-arduino?
• How can UAVs be simulated using ROS?
• How can I visualize covariance data using ROS tools?
• How can multiple robots communicate using ROS?
• How can I speed up simulation in Gazebo?
• Modeling URDF files using Blender and exporting to COLLADA format
• How can I calibrate my (real) robot?
• Unreliable connection using rosserial
• Using rosserial for a ATmega168/Arduino based motorcontroller
• Best Practice: URDF descriptions, real robots, gazebo plugins and dependencies
• Setting near/far clip planes in gazebo visualization
• Example bagfile of SICK LIDAR data on robot driving around
• Simulated Kinect in gazebo with realistic error model
• URDF using mimic joints and conversion to OpenRAVE format
• Playing back logfiles with tf data for offline SLAM
• How can I calibrate low resolution cameras?
• erratic_robot simulation and diamondback
• Applying wrench to object and update rate of gazebo_ros_force plugin
• Smooth Shading for environments in gazebo
• dynamic_reconfigure with large parameter sets
• Simulating a thermal camera in gazebo
• rosserial/cmake flashing fails with atmega168
• Dynamic Reconfiguration using orocos_toolchain
• self_see_filter not working with meshes
• Laser data with Turtlebot simulation on electric
• Publishing rate of gazebo sensor plugins broken on fuerte?
• Retrieving the distance from a point to the closest link of a robot
• Geometry tools for python
• Filtering out robot parts from pointcloud data
• Activating shading for a .stl based environment in gazebo
• MoveIt! groovy symbol lookup error (KDL plugin)
• State of Turtlebot simulation using Gazebo in fuerte and groovy
• KDL iterative IK solver joint angles not normalized
• avr_bridge example code not working with current git version?
• Object origin not handled correctly by Gazebo for lighting?
• roscore fails to start after latest update? (precise, groovy, AMD64)
• Providing MoveIt! with (external) octomap data
• MoveIt! endeffectors and groups
• Making sure the goal state is reachable/clearing it when planning with MoveIt!
• Using care-o-bot in simulation on electric, installed from .debs
• Is the page design on this site broken for anyone else? (Ubuntu w/ Chrome and Firefox, Android with Chrome)
• catkin_make only working with -j1 option, giving compile error otherwise?
• (Conveniently) deleting packages using rosinstall/rosws
• ROS groovy update screwed up workspace setup in some cases?
• Launch setup using tf_prefix broken in hydro
• Alternatives for (not working) nested substitution arguments for roslaunch
• Joint state settlers crash when trying out to adapt robot calibration to custom robot
• Unable to change Avatar image, "service unavailable"
• Robot Calibration not finding a solution
• "The notion of a group name for collision tags is not supported by URDF" when loading Atlas model
• Webots to URDF Model Converter
• How can lights be manipulated in Gazebo 1.0?
• dynamic_reconfigure unable to (re)load dumped parameters
• Complete MoveIt! Pick and Place example? (ideally with Gazebo integration)
• turtlebot_simulator on hydro barely usable due to robot slipping
• Occassionally getting a Error32 Broken Pipe error when calling service from rospy
• razer_hydra: One controller working fine, other one extremely jittery
• Very high latency when using ROS tools over WiFi
• Travis CI with 14.04/Indigo and/or alternatives
• Multiple action clients to one server and correct preemption notifications

● Popular Question   × 62

• rosserial Esp8266HelloWorld example does not work with UDP mode
• roslaunch Python arg substitution finds wrong package folder path?
• How to use a Arduino Due in a CMake-based package using rosserial-arduino?
• How can I visualize covariance data using ROS tools?
• How can multiple robots communicate using ROS?
• How can UAVs be simulated using ROS?
• How can I calibrate my (real) robot?
• How can I speed up simulation in Gazebo?
• erratic_robot simulation and diamondback
• Unreliable connection using rosserial
• Modeling URDF files using Blender and exporting to COLLADA format
• Using rosserial for a ATmega168/Arduino based motorcontroller
• Best Practice: URDF descriptions, real robots, gazebo plugins and dependencies
• Playing back logfiles with tf data for offline SLAM
• Simulated Kinect in gazebo with realistic error model
• Example bagfile of SICK LIDAR data on robot driving around
• Setting near/far clip planes in gazebo visualization
• URDF using mimic joints and conversion to OpenRAVE format
• How can I calibrate low resolution cameras?
• Applying wrench to object and update rate of gazebo_ros_force plugin
• Smooth Shading for environments in gazebo
• dynamic_reconfigure with large parameter sets
• Simulating a thermal camera in gazebo
• rosserial/cmake flashing fails with atmega168
• Dynamic Reconfiguration using orocos_toolchain
• self_see_filter not working with meshes
• Laser data with Turtlebot simulation on electric
• Publishing rate of gazebo sensor plugins broken on fuerte?
• Retrieving the distance from a point to the closest link of a robot
• Geometry tools for python
• Filtering out robot parts from pointcloud data
• Activating shading for a .stl based environment in gazebo
• MoveIt! groovy symbol lookup error (KDL plugin)
• State of Turtlebot simulation using Gazebo in fuerte and groovy
• KDL iterative IK solver joint angles not normalized
• avr_bridge example code not working with current git version?
• MoveIt! endeffectors and groups
• Object origin not handled correctly by Gazebo for lighting?
• roscore fails to start after latest update? (precise, groovy, AMD64)
• Providing MoveIt! with (external) octomap data
• Making sure the goal state is reachable/clearing it when planning with MoveIt!
• Using care-o-bot in simulation on electric, installed from .debs
• Is the page design on this site broken for anyone else? (Ubuntu w/ Chrome and Firefox, Android with Chrome)
• catkin_make only working with -j1 option, giving compile error otherwise?
• (Conveniently) deleting packages using rosinstall/rosws
• Alternatives for (not working) nested substitution arguments for roslaunch
• ROS groovy update screwed up workspace setup in some cases?
• Unable to change Avatar image, "service unavailable"
• Launch setup using tf_prefix broken in hydro
• "The notion of a group name for collision tags is not supported by URDF" when loading Atlas model
• Joint state settlers crash when trying out to adapt robot calibration to custom robot
• Robot Calibration not finding a solution
• razer_hydra: One controller working fine, other one extremely jittery
• Webots to URDF Model Converter
• How can lights be manipulated in Gazebo 1.0?
• Complete MoveIt! Pick and Place example? (ideally with Gazebo integration)
• dynamic_reconfigure unable to (re)load dumped parameters
• turtlebot_simulator on hydro barely usable due to robot slipping
• Occassionally getting a Error32 Broken Pipe error when calling service from rospy
• Very high latency when using ROS tools over WiFi
• Travis CI with 14.04/Indigo and/or alternatives
• Multiple action clients to one server and correct preemption notifications

● Self-Learner   × 10

• How to use a Arduino Due in a CMake-based package using rosserial-arduino?
• Modeling URDF files using Blender and exporting to COLLADA format
• Smooth Shading for environments in gazebo
• Simulating a thermal camera in gazebo
• How can UAVs be simulated using ROS?
• roscore fails to start after latest update? (precise, groovy, AMD64)
• "The notion of a group name for collision tags is not supported by URDF" when loading Atlas model
• Joint state settlers crash when trying out to adapt robot calibration to custom robot
• How can I calibrate low resolution cameras?
• Multiple action clients to one server and correct preemption notifications

● Supporter   × 1

• Which IDE(s) do ROS developers use?

● Autobiographer   × 1

● Teacher   × 1

• Which robot can or should I get to run ROS?

● Citizen Patrol   × 1

• set priority on python node

● Enlightened   × 1

• Which robot can or should I get to run ROS?

● Commentator   × 1

• erratic_gazebo tutorial not working

● Taxonomist   × 1

● Great Question   × 10

• How can multiple robots communicate using ROS?
• How can I visualize covariance data using ROS tools?
• How can I speed up simulation in Gazebo?
• Simulated Kinect in gazebo with realistic error model
• Modeling URDF files using Blender and exporting to COLLADA format
• How can I calibrate my (real) robot?
• Complete MoveIt! Pick and Place example? (ideally with Gazebo integration)
• ROS groovy update screwed up workspace setup in some cases?
• Best Practice: URDF descriptions, real robots, gazebo plugins and dependencies
• How can UAVs be simulated using ROS?

● Scholar   × 1

• How can multiple robots communicate using ROS?

● Student   × 1

• How can multiple robots communicate using ROS?

● Editor   × 1

• How can UAVs be simulated using ROS?

● Organizer   × 1

• Which IDE(s) do ROS developers use?

● Enthusiast   × 1

● Critic   × 1

• I'm new to ROS how do I get started?

● Civic Duty   × 1

• Visual and collision geometry misaligned in Gazebo 1.0

● Stellar Question   × 3

• How can I visualize covariance data using ROS tools?
• How can UAVs be simulated using ROS?
• How can I speed up simulation in Gazebo?

● Great Answer   × 54

• error in publishing an Eigen::Matrix using rostopic
• map_server GetMap
• use of rtabmap with 3D lidars
• To understand the concept of Origin field from map_server
• How to enter multi-line code in our questions?
• move_base and extrapolation errors into the future
• hector_slam: how to load a saved map (and perform localization)
• How can I perform loop closure in graph SLAM ?
• Does a node receive messages sent by itself on a topic that it is both publishing and subscribing to?
• Simulating a thermal camera in gazebo
• Husky perfect localization (Gazebo Positioning System)
• How to Use Laser Data
• Clear Map from HectorMapping
• Using hector slam with amcl for localization in a pre-made map
• SLAM without odometry: gmapping or hector_slam?
• Path planning for car-like robots
• About geometry_msgs/Twist
• ros launch issue
• problem in geometry_msgs::Pose
• How can I create robot model and simulate with ROS?
• Which robot can or should I get to run ROS?
• Hector Slam
• Has anyone worked with a mobile robot simulation on terrain in Gazebo?
• How do I publish gazebo position of a robot model on odometry topic.
• URDF or Xacro?
• [rospack] Error: package 'map_server' not found
• Could IK solver called by arm_navigation auto-generated file work for 5 DOF manipulator
• When to use Gmapping??
• rospack became agonizingly slow
• How to understand robot orientation from quaternion yaw angle
• How to visualize a frame pose as a path
• Weird situation with kinect mounted on PR2
• Maps, is it better to publish on a topic or use a service and have other nodes request a map?
• is there any ROS package for exploration in Groovy (ubuntu 12.10)?
• How to Mark a detected victim in hector slam
• regarding visual slam
• Debugging ROS package with Qtcreator???
• How to change the height of the Kinect mounted in turtlebot simulator
• How can UAVs be simulated using ROS?
• Navigation using real time generate map without a known map
• Get package path with rospy
• lookupTransform base_link to laser0_frame timed out. Could not transform laser scan into base_frame
• Problem with the robot model collapsing
• Depth image from a Disparity image
• add opencv to indigo
• roscore, roswtf commands not found
• hector_slam with odometry?
• ROS using C++ 11 & How to Use With Catkin?
• Difference between .dae and .stl files
• Difference between .dae and .stl files
• What is the different between RGBD-6D-SLAM and rgbdslam
• Phyton vs c++
• map.yaml format
• The difference between Spin() and SpinOnce().

● Favorite Question   × 6

• How can multiple robots communicate using ROS?
• How can I speed up simulation in Gazebo?
• How can UAVs be simulated using ROS?
• How can I visualize covariance data using ROS tools?
• State of Turtlebot simulation using Gazebo in fuerte and groovy
• ROS groovy update screwed up workspace setup in some cases?

● Good Answer   × 181

• catkin_tools and qtcreator
• Create two nodes in the same package
• How to import Collada (.dae) files into Gazebo (ROS/Fuerte)?
• Objects spawning and falling down immediately in Gazebo
• Pointcloud data to mesh conversion
• image_proc not working as expected
• [Moveit/Gazebo] Controller failed with error code GOAL_TOLERANCE_VIOLATED
• how can i solve the forward kinematics and get the cartesian positions for the links on a arm?
• How to enter multi-line code in our questions?
• Data loss between publisher and subscriber
• Brushless Motor Control
• Oddity in rxplot
• Why is there a Twist in Odometry message
• Camera calibration and fish eye cameras
• Matching RGB image with Point Cloud
• Kinect + Gazebo
• To understand the concept of Origin field from map_server
• How to control the speed of urdf model using moveit
• rc_control controllers modes
• ros gmapping change scan topic
• Exploration tutorial for gazebo/erratic or P3DX
• How do I publish gazebo position of a robot model on odometry topic.
• Visualize data during experiment: Gazebo/RVIZ
• Multiple action clients to one server and correct preemption notifications
• visualizing gazebo model in rviz
• Is there a way to subscribe to the uncertainty of Gmapping?
• Husky perfect localization (Gazebo Positioning System)
• hector_slam: how to load a saved map (and perform localization)
• Using Hector mapping for odometry with amcl for localization in a pre given map
• How to enable a robot to ROS
• Problem with data from subscriber not going anywhere
• Simulating a thermal camera in gazebo
• Which robot can or should I get to run ROS?
• simulating kinect sensor in Gazebo
• ROSJava Laserscan
• Visualizing continuous and revolute joint types in rviz
• How can I create robot model and simulate with ROS?
• What happened if I install two version of ROS?
• Small Single Board Computers suitable for ROS
• Path planning for car-like robots
• About geometry_msgs/Twist
• create robot model for rviz
• roscore, roswtf commands not found
• RVIZ display 2d probabilistic map
• Restart a package with a clean state
• Teleop and Network disconnections
• Do not have any equipment
• Use 3-Axis Accelerometer to calculate theta?
• ros launch issue
• How to check the pointcloud data rate from the turtlebot laptop to the workstation?
• How to visualize a frame pose as a path
• scale problems with gazebo
• piloting an UAV model in Gazebo.
• problem in geometry_msgs::Pose
• Copying STL files to gazebo_worlds
• markers python
• How to generate map with hector_slam and Kinect
• very strange stuff in rviz
• Kinect for Windows
• Mesh rendering in RViz
• hector_slam tf error
• Hector Slam
• lookupTransform base_link to laser0_frame timed out. Could not transform laser scan into base_frame
• Sick TiM300 Laserscanner Driver
• regarding visual slam
• Has anyone worked with a mobile robot simulation on terrain in Gazebo?
• How to understand robot orientation from quaternion yaw angle
• Can't see my python node in rosnode list?
• Is it possible to remap topics at runtime?
• Deleted src files after catkin_make
• Trouble Including rosbag
• ros_control: Difficulty getting custom hardware interface to run
• Existing motion planner for double Ackermann kynematics?
• trajectory saving problem
• D-H table for youbot
• Visual servoing with ROS
• hector_mapping set-up
• map.yaml format
• Debugging ROS package with Qtcreator???
• Could IK solver called by arm_navigation auto-generated file work for 5 DOF manipulator
• Waypoints with orientation + Smooth trajectory
• Smooth Shading for environments in gazebo
• Gmapping overwrites map
• Using AMCL without wheel odometry (only laser + IMU)
• When to use Gmapping??
• Navigation using real time generate map without a known map
• Teleop based control of a custom vehicle
• rospack became agonizingly slow
• is there any ROS package for exploration in Groovy (ubuntu 12.10)?
• deformation with ros an gazebo
• Weird situation with kinect mounted on PR2
• Why is Groovy's rosmake so slow?
• move_base with own localization
• error in publishing an Eigen::Matrix using rostopic
• gmapping missing spots
• publishing topics and tf data through wireless
• hector_slam with odometry?
• How to Mark a detected victim in hector slam
• Get package path with rospy
• Unable to Spawn a coffee_cup in a Gazebo World
• Using Fuerte and Groovy in the same machine?
• Maps, is it better to publish on a topic or use a service and have other nodes request a map?
• PCL package on ROS Hydro compiling errors
• Why search field do an "OR" search, not an "AND" search
• How do I solve undefined reference to interactive_markers
• Rotating Hokuyo on the Atlas?
• joystick control/navigation using python in ros
• problem with tf No transform from /laser_link to frame /odom
• How can i add and detect qrcode on my map?
• gmapping + iRobot Create + Hokuyo laser scanner
• How to Use Laser Data
• Question on topic publication
• E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
• How to change the height of the Kinect mounted in turtlebot simulator
• Phyton vs c++
• What is the different between RGBD-6D-SLAM and rgbdslam
• Depth image from a Disparity image
• move_base and extrapolation errors into the future
• Can a low cost IMU compensate for wheel slip induced heading errors?
• add opencv to indigo
• Lots of delay when trying to teleop with a Turtlebot
• installing hector_slam package in fuerte
• Dynamic Robot Model Implementation
• Hector mapping stabilized frame
• Grab Single Frame From Gazebo Camera
• Project point cloud to image coordinates using camerainfo
• How to integrate Qt with ROS ?
• Is there any package for omnidirectional drive robot for gazebo?
• Ros timing issue
• Is it possible to use Fuerte on 14.04?
• ar_track_alvar not 32-bit compatible?
• Problem connecting hokuyo ethernet LIDAR
• Use a catkin package that depends on a rosbuild package
• Can't include message of other package in Catkin
• Using hector slam with amcl for localization in a pre-made map
• What do hector_slam with /odom?
• show robot trajectory in rviz real-time
• How can UAVs be simulated using ROS?
• Interactive markers: launch on robot, or on desktop?
• Clear Map from HectorMapping
• quadrotor with laser scanner?
• Linear Algebra operations with ROS
• Difference between .dae and .stl files
• multiple robots and ros_control
• ROS using C++ 11 & How to Use With Catkin?
• IMU plugin erratic acceleration measurements
• Hector Trajectory path is not flowing smoothly
• Simulating a Camera with a Pan Tilt Unit
• Problem with the robot model collapsing
• sick tim no node ?
• help me with a simulator that can be used to simulate obstacle avoidance of manipulators using potential field ?
• Old data keeps being visualized in rviz
• Huge drift using single IMU state estimation
• Does gmapping resize the map if required?
• Book: Learning ROS for Robotics Programming, 2nd Edn; Chapter 5 - USB Camera is not running
• Gazebo simulation time speed up.
• Code for keeping a list of the "Pose" that Turtlebot has visited.
• SLAM without odometry: gmapping or hector_slam?
• map_server GetMap
• Does a node receive messages sent by itself on a topic that it is both publishing and subscribing to?
• Is there any workspace analysis tool in ROS for a robot arm?
• PCL Header timestamp
• The difference between Spin() and SpinOnce().
• How to change turtlebot gazebo FOV and make it 270 degree?
• use of rtabmap with 3D lidars
• Is raspberry pi 3 suitable for testing ros with pcl for computer vision purpose?
• Issues with RViz and Displaying IMU data
• how can I build probability maps with gmapping
• Can I make a directory in launch file?
• Drawing Bounding Box for a rotated object
• Loading generated maps into Gazebo
• Independently change angular and linear velocities (cmd_vel)
• [rospack] Error: package 'map_server' not found
• Decimate Collada/urdf for faster collision checking in MoveIt
• How can I calibrate low resolution cameras?
• Any idea to implement a generic controller for a Quadcopter?
• RViz - RobotModel -> base_link -> 'show trail' history
• Multiple Kinects in Rviz, image fusion?
• How can I perform loop closure in graph SLAM ?
• URDF or Xacro?
• which sensor better to use for slam?

● Famous Question   × 61

• razer_hydra: One controller working fine, other one extremely jittery
• roslaunch Python arg substitution finds wrong package folder path?
• How can UAVs be simulated using ROS?
• Modeling URDF files using Blender and exporting to COLLADA format
• How can I speed up simulation in Gazebo?
• How can multiple robots communicate using ROS?
• Using rosserial for a ATmega168/Arduino based motorcontroller
• How can I visualize covariance data using ROS tools?
• How can I calibrate my (real) robot?
• rosserial Esp8266HelloWorld example does not work with UDP mode
• How to use a Arduino Due in a CMake-based package using rosserial-arduino?
• Setting near/far clip planes in gazebo visualization
• Unreliable connection using rosserial
• Example bagfile of SICK LIDAR data on robot driving around
• Simulated Kinect in gazebo with realistic error model
• Best Practice: URDF descriptions, real robots, gazebo plugins and dependencies
• URDF using mimic joints and conversion to OpenRAVE format
• Playing back logfiles with tf data for offline SLAM
• How can I calibrate low resolution cameras?
• erratic_robot simulation and diamondback
• Applying wrench to object and update rate of gazebo_ros_force plugin
• Smooth Shading for environments in gazebo
• dynamic_reconfigure with large parameter sets
• Simulating a thermal camera in gazebo
• rosserial/cmake flashing fails with atmega168
• Dynamic Reconfiguration using orocos_toolchain
• Retrieving the distance from a point to the closest link of a robot
• Publishing rate of gazebo sensor plugins broken on fuerte?
• Filtering out robot parts from pointcloud data
• Laser data with Turtlebot simulation on electric
• Activating shading for a .stl based environment in gazebo
• Geometry tools for python
• self_see_filter not working with meshes
• State of Turtlebot simulation using Gazebo in fuerte and groovy
• MoveIt! groovy symbol lookup error (KDL plugin)
• avr_bridge example code not working with current git version?
• Object origin not handled correctly by Gazebo for lighting?
• roscore fails to start after latest update? (precise, groovy, AMD64)
• Providing MoveIt! with (external) octomap data
• KDL iterative IK solver joint angles not normalized
• Using care-o-bot in simulation on electric, installed from .debs
• MoveIt! endeffectors and groups
• catkin_make only working with -j1 option, giving compile error otherwise?
• Making sure the goal state is reachable/clearing it when planning with MoveIt!
• ROS groovy update screwed up workspace setup in some cases?
• (Conveniently) deleting packages using rosinstall/rosws
• Is the page design on this site broken for anyone else? (Ubuntu w/ Chrome and Firefox, Android with Chrome)
• Launch setup using tf_prefix broken in hydro
• "The notion of a group name for collision tags is not supported by URDF" when loading Atlas model
• Robot Calibration not finding a solution
• How can lights be manipulated in Gazebo 1.0?
• Webots to URDF Model Converter
• Unable to change Avatar image, "service unavailable"
• Joint state settlers crash when trying out to adapt robot calibration to custom robot
• Complete MoveIt! Pick and Place example? (ideally with Gazebo integration)
• dynamic_reconfigure unable to (re)load dumped parameters
• Alternatives for (not working) nested substitution arguments for roslaunch
• Travis CI with 14.04/Indigo and/or alternatives
• Very high latency when using ROS tools over WiFi
• Occassionally getting a Error32 Broken Pipe error when calling service from rospy
• Multiple action clients to one server and correct preemption notifications

● Nice Question   × 31

• roslaunch Python arg substitution finds wrong package folder path?
• MoveIt! endeffectors and groups
• How to use a Arduino Due in a CMake-based package using rosserial-arduino?
• How can multiple robots communicate using ROS?
• How can I calibrate my (real) robot?
• How can I visualize covariance data using ROS tools?
• avr_bridge example code not working with current git version?
• How can I speed up simulation in Gazebo?
• Modeling URDF files using Blender and exporting to COLLADA format
• Best Practice: URDF descriptions, real robots, gazebo plugins and dependencies
• Simulated Kinect in gazebo with realistic error model
• Simulating a thermal camera in gazebo
• Setting near/far clip planes in gazebo visualization
• How can UAVs be simulated using ROS?
• Retrieving the distance from a point to the closest link of a robot
• How can lights be manipulated in Gazebo 1.0?
• dynamic_reconfigure unable to (re)load dumped parameters
• (Conveniently) deleting packages using rosinstall/rosws
• State of Turtlebot simulation using Gazebo in fuerte and groovy
• Providing MoveIt! with (external) octomap data
• catkin_make only working with -j1 option, giving compile error otherwise?
• Alternatives for (not working) nested substitution arguments for roslaunch
• ROS groovy update screwed up workspace setup in some cases?
• Unable to change Avatar image, "service unavailable"
• Webots to URDF Model Converter
• Very high latency when using ROS tools over WiFi
• Travis CI with 14.04/Indigo and/or alternatives
• Complete MoveIt! Pick and Place example? (ideally with Gazebo integration)
• Smooth Shading for environments in gazebo
• Activating shading for a .stl based environment in gazebo
• How can I calibrate low resolution cameras?

● Good Question   × 17

• Webots to URDF Model Converter
• How can multiple robots communicate using ROS?
• How can I calibrate my (real) robot?
• How can I visualize covariance data using ROS tools?
• How can I speed up simulation in Gazebo?
• Modeling URDF files using Blender and exporting to COLLADA format
• Simulated Kinect in gazebo with realistic error model
• How can UAVs be simulated using ROS?
• Best Practice: URDF descriptions, real robots, gazebo plugins and dependencies
• catkin_make only working with -j1 option, giving compile error otherwise?
• ROS groovy update screwed up workspace setup in some cases?
• Providing MoveIt! with (external) octomap data
• Simulating a thermal camera in gazebo
• How can lights be manipulated in Gazebo 1.0?
• Alternatives for (not working) nested substitution arguments for roslaunch
• Travis CI with 14.04/Indigo and/or alternatives
• Complete MoveIt! Pick and Place example? (ideally with Gazebo integration)

● Necromancer   × 24

• How to change the robot_description paramter for the joint_trajectory_controller
• How to use Moveit for planning circular path with a robotic arm
• Kinect for Windows
• piloting an UAV model in Gazebo.
• How can UAVs be simulated using ROS?
• octomap_server problems
• "The notion of a group name for collision tags is not supported by URDF" when loading Atlas model
• Has anyone used a 'Dr Robot' platform with ROS?
• Using hector slam with amcl for localization in a pre-made map
• QR Code detection?
• Workspace exploration from urdf?
• Requiring deep understanding of robot_state_publisher and TF
• multiple ar.drones on tum_simulator
• Problem setting up hector_slam (no map), please help
• Gazebo Planar Move Plugin for Omni-Directional Wheel
• Objects spawning and falling down immediately in Gazebo
• Giving a directory to output file in a launcher. for (rosbag record and rostopic echo)
• completely black rectified images (Kind of solve....?)
• Complete coverage path planning ros
• Octomap slows down with increase in map size
• How can I perform loop closure in graph SLAM ?
• Need a camera with constant focus
• How do I publish gazebo position of a robot model on odometry topic.
• What for catkin needs to link to librt (realtime extension)?