pitosalas's profile - overview

● Favorite Question   × 2

• Installing ROS on Mac Sierra: a report
• Installing ROS on Mac Sierra: a report

● Enthusiast   × 1

● Commentator   × 1

• Difference between wstool and rosdep

● Good Question   × 6

• What exactly is the OpenCR part?
• What exactly is the OpenCR part?
• Installing ROS on Mac Sierra: a report
• Installing ROS on Mac Sierra: a report
• Running ROS and its gui tools through a docker image
• Running ROS and its gui tools through a docker image

● Organizer   × 2

• Sudden velocity changes and their impact on a Turtlebot
• Sudden velocity changes and their impact on a Turtlebot

● Popular Question   × 298

• What exactly is the OpenCR part?
• What exactly is the OpenCR part?
• Installing Turtlebot3 software for the first time on remote pc
• Installing Turtlebot3 software for the first time on remote pc
• rosdep not properly installed
• rosdep not properly installed
• Where does ROS install?
• Where does ROS install?
• I may have corrupted rosdep
• I may have corrupted rosdep
• catkin_make_isolated: ImportError: No module named genmsg
• catkin_make_isolated: ImportError: No module named genmsg
• Difference between wstool and rosdep
• Difference between wstool and rosdep
• Why are these topics appearing?
• Why are these topics appearing?
• Nesting of workspaces
• Nesting of workspaces
• Missing compile step?
• Missing compile step?
• lz4 includes not found
• lz4 includes not found
• HTTP server on board Turtlebot?
• HTTP server on board Turtlebot?
• Rosdep not detecting that pyqt5 is there, despite skip-keys
• Rosdep not detecting that pyqt5 is there, despite skip-keys
• Rostopic on Mac
• Rostopic on Mac
• Easiest way for non-ROS program to talk to a ROS node
• Easiest way for non-ROS program to talk to a ROS node
• Installing ROS on Mac Sierra: a report
• Installing ROS on Mac Sierra: a report
• Mac Install (Sierra) - ERROR: the following packages/stacks could not have their rosdep keys resolved to system dependencies: webkit_dependency: No definition of [python-qt5-bindings-webkit] for OS [osx]
• Mac Install (Sierra) - ERROR: the following packages/stacks could not have their rosdep keys resolved to system dependencies: webkit_dependency: No definition of [python-qt5-bindings-webkit] for OS [osx]
• Best book about ROS with Python
• Best book about ROS with Python
• Questions about using stdr
• Questions about using stdr
• Gazebo seems to be crashing
• Gazebo seems to be crashing
• Ros Scan Topic generation by simulator
• Ros Scan Topic generation by simulator
• Continued: Installing on Mac Sierra: qt_gui_cpp_sip errors
• Continued: Installing on Mac Sierra: qt_gui_cpp_sip errors
• Can turtlebot3_fake simulate lidar and obstacles?
• Can turtlebot3_fake simulate lidar and obstacles?
• Turtlebot3 - how to work with various OpenCR sensors and actions
• Turtlebot3 - how to work with various OpenCR sensors and actions
• Using turtlesim
• Using turtlesim
• Turtlebot 3 Questions
• Turtlebot 3 Questions
• Recommended hardware for ROS development
• Recommended hardware for ROS development
• Create Autonomy + ROS + iRobot Create - odometry
• Create Autonomy + ROS + iRobot Create - odometry
• Python versions of tutorials
• Python versions of tutorials
• tf tutorial is displaying just one turtle instead of two
• tf tutorial is displaying just one turtle instead of two
• Conventions in wiki.ros...
• Conventions in wiki.ros...
• Skipped loading plugin with error: XML Document '/opt/ros/kinetic/share/gmapping/nodelet_plugins.xml' has no Root Element. This likely means the XML is malformed or missing.
• Skipped loading plugin with error: XML Document '/opt/ros/kinetic/share/gmapping/nodelet_plugins.xml' has no Root Element. This likely means the XML is malformed or missing.
• stdr_simulatorTutorialsCreate a map with gmapping - "the right topic"?
• stdr_simulatorTutorialsCreate a map with gmapping - "the right topic"?
• Best tutorial for learning nav_stack
• Best tutorial for learning nav_stack
• Python tutorials for Actionlib?
• Python tutorials for Actionlib?
• How to totally reset ROS
• How to totally reset ROS
• Stdr and RViz
• Stdr and RViz
• How to build a persistent hash?
• How to build a persistent hash?
• Favorite papers in mobile robotics?
• Favorite papers in mobile robotics?
• Installing ROS on Mac Sierra
• Installing ROS on Mac Sierra
• Customizing Turtlebot3 - OpenCR tweaks needed
• Customizing Turtlebot3 - OpenCR tweaks needed
• Velocity ramps - Turtlebot 3?
• Velocity ramps - Turtlebot 3?
• Roscore not finding rostopic
• Roscore not finding rostopic
• Localhost vs. 0.0.0.0
• Localhost vs. 0.0.0.0
• Experimenting with SLAM navigation with a simulated robot
• Experimenting with SLAM navigation with a simulated robot
• When should roscors's ros_master_uri not just be localhost?
• When should roscors's ros_master_uri not just be localhost?
• navigation_stage .world files and other documentation
• navigation_stage .world files and other documentation
• rostopic shows /odom publisher and subscriber, but topic monitor shows "unknown"
• rostopic shows /odom publisher and subscriber, but topic monitor shows "unknown"
• What computers are participating in ROS right now?
• What computers are participating in ROS right now?
• Converting raw lidar data to something more useful
• Converting raw lidar data to something more useful
• Modularity in software design with ROS
• Modularity in software design with ROS
• answers.ros question: seeing responses to my questions
• answers.ros question: seeing responses to my questions
• roslaunch, rosrun, and ./mynode.py
• roslaunch, rosrun, and ./mynode.py
• Need information from two different topics at once
• Need information from two different topics at once
• ROSPY: Interrupting with a control-c
• ROSPY: Interrupting with a control-c
• Avoid going reverse
• Avoid going reverse
• What does this do: roslaunch turtlebot3_bringup turtlebot3_remote.launch
• What does this do: roslaunch turtlebot3_bringup turtlebot3_remote.launch
• Getting information out of the /scan topic
• Getting information out of the /scan topic
• Robot "bucking" while driving in reverse
• Robot "bucking" while driving in reverse
• Sudden velocity changes and their impact on a Turtlebot
• Sudden velocity changes and their impact on a Turtlebot
• Interpetting a stream of cmd_vels
• Interpetting a stream of cmd_vels
• Where is the map stored at different times?
• Where is the map stored at different times?
• Installed ros-kinetic-turtlebot-gazebo but something weird
• Installed ros-kinetic-turtlebot-gazebo but something weird
• rospy.Time.now() returns 0
• rospy.Time.now() returns 0
• Traces of Gazebo left even after it has exited
• Traces of Gazebo left even after it has exited
• Python source for built-in message types
• Python source for built-in message types
• Other Linux Distros
• Other Linux Distros
• What kinds of robot platforms are most appropriate for ROS?
• What kinds of robot platforms are most appropriate for ROS?
• SLAM - definitions
• SLAM - definitions
• OpenCV "namedwindow" goes grey, is not getting events
• OpenCV "namedwindow" goes grey, is not getting events
• turtlebot_fake: can have no objects, correct?
• turtlebot_fake: can have no objects, correct?
• Predictability of cmd_vel
• Predictability of cmd_vel
• Obstacles seen by planning but not expected by AMCL
• Obstacles seen by planning but not expected by AMCL
• Best practice for running multiple robots in a class
• Best practice for running multiple robots in a class
• Package installation confusion
• Package installation confusion
• We are looking for a ROS robot design to build for our project
• We are looking for a ROS robot design to build for our project
• Inbound TCP/IP connection failed: 'function' object has no attribute 'peer_subscribe'
• Inbound TCP/IP connection failed: 'function' object has no attribute 'peer_subscribe'
• Any experience with aws robomaker
• Any experience with aws robomaker
• ROS Docker Container not able to be pulled
• ROS Docker Container not able to be pulled
• Today in 2019, will RViz and Gazebo work with X forwarding over SSH
• Today in 2019, will RViz and Gazebo work with X forwarding over SSH
• Running ROS and its gui tools through a docker image
• Running ROS and its gui tools through a docker image
• Gazebo crashes immediately after launching
• Gazebo crashes immediately after launching
• Interrupting ROS node with a ctrl+c (in terminator shell)
• Interrupting ROS node with a ctrl+c (in terminator shell)
• Can I launch rqt_console from a .launch file?
• Can I launch rqt_console from a .launch file?
• RViz keyboard control
• RViz keyboard control
• RViz UI gestures using Mac Book Pro trackpad
• RViz UI gestures using Mac Book Pro trackpad
• Is it possible to remote execute a python ROS file
• Is it possible to remote execute a python ROS file
• One lab, multiple robots, multiple independent projects
• One lab, multiple robots, multiple independent projects
• Is the tf 'tree' persistent in any way or derived from the flow of tf topics?
• Is the tf 'tree' persistent in any way or derived from the flow of tf topics?
• Help with tf2 tutorial "Writing a tf2 listener"
• Help with tf2 tutorial "Writing a tf2 listener"
• Inbound TCP/IP connection failed: connection from sender terminated before handshake header received. 0 bytes were received. Please check sender for additional details
• Inbound TCP/IP connection failed: connection from sender terminated before handshake header received. 0 bytes were received. Please check sender for additional details
• rospy.loginfo_throttle and _throttle_identical
• rospy.loginfo_throttle and _throttle_identical
• Where can I find the actual source code for the tf2 demo?
• Where can I find the actual source code for the tf2 demo?
• Teaching amcl and slam
• Teaching amcl and slam
• move_base constantly replanning ("got new plan")
• move_base constantly replanning ("got new plan")
• Other APIs for ROS
• Other APIs for ROS
• Best practice robot launch sequence
• Best practice robot launch sequence
• When bringing up ROS on a TurtleBot3 Lidar spins once and stops
• When bringing up ROS on a TurtleBot3 Lidar spins once and stops
• Raspicam with Rviz
• Raspicam with Rviz
• Best practices for reproducibility
• Best practices for reproducibility
• four wheel drive
• four wheel drive
• On MacOS: Running ROS and its gui tools through a docker image edit
• On MacOS: Running ROS and its gui tools through a docker image edit
• Running ROS + Gazebo on Raspberry Pi
• Running ROS + Gazebo on Raspberry Pi
• Working code for computing odometry from decoder ticks
• Working code for computing odometry from decoder ticks
• Lowest end computer that will run ROS and all its tools
• Lowest end computer that will run ROS and all its tools
• Lightweight alternatives to Gazebo
• Lightweight alternatives to Gazebo
• Gazebo Simulated Robot going at 1m/second acts weird
• Gazebo Simulated Robot going at 1m/second acts weird
• RViz Grid Direction
• RViz Grid Direction
• Anyone know what came of "Pyro?
• Anyone know what came of "Pyro?
• Rviz says LaserScan "transform [sender=unknown_pubisher]" but all evidence points against it
• Rviz says LaserScan "transform [sender=unknown_pubisher]" but all evidence points against it
• TF with unknown publisher
• TF with unknown publisher
• What are the causes of AMCL jumping around in its localization?
• What are the causes of AMCL jumping around in its localization?
• Why catkin_make_isolated on Rasberry Pi?
• Why catkin_make_isolated on Rasberry Pi?
• tf: I can't explain "unknown publisher" and rviz cant display laserscan
• tf: I can't explain "unknown publisher" and rviz cant display laserscan
• expected_update_rate
• expected_update_rate
• Finding lines from a set of points (image processing)
• Finding lines from a set of points (image processing)
• Safely rename catkin_ws to fix typo
• Safely rename catkin_ws to fix typo
• Amcl localization accurate, but slightly offset from lidar data
• Amcl localization accurate, but slightly offset from lidar data
• ROS via VNC "XKEYBOARD extension not present"
• ROS via VNC "XKEYBOARD extension not present"
• Should the origin of base_link and odom be the same?
• Should the origin of base_link and odom be the same?
• How to get Qhull PyHull on Mac OS Sierra
• How to get Qhull PyHull on Mac OS Sierra
• Confused about python versions
• Confused about python versions
• Idiomatic way to tell whether code is on simulator or real robot
• Idiomatic way to tell whether code is on simulator or real robot
• Idiomatic way to tell whether code is on simulator or real robot
• Idiomatic way to tell whether code is on simulator or real robot
• Alternative to .launch files
• Alternative to .launch files
• What tcp/ip ports have to be open?
• What tcp/ip ports have to be open?
• VPN use case for ROS_IP, ROS_MASTER_URI and ROS_HOSTNAME
• VPN use case for ROS_IP, ROS_MASTER_URI and ROS_HOSTNAME
• How is roslaunch different from a series of rosruns?
• How is roslaunch different from a series of rosruns?
• ROS Best Practices
• ROS Best Practices
• Confused about spinOnce and sleep
• Confused about spinOnce and sleep
• Gazebo display of colored arrows showing x,y,z
• Gazebo display of colored arrows showing x,y,z
• Trouble installing a package - "Unable to locate package"
• Trouble installing a package - "Unable to locate package"
• Getting raspicam_node running on noetic
• Getting raspicam_node running on noetic
• Design of a teleop-api
• Design of a teleop-api
• catkin_make error message
• catkin_make error message
• IMU shows continuous slow spin around z axis
• IMU shows continuous slow spin around z axis
• Troubleshooting new robot
• Troubleshooting new robot
• Odometry orientation in radians is giving me weird numbers
• Odometry orientation in radians is giving me weird numbers
• roswtf: unconnected subscription warning?
• roswtf: unconnected subscription warning?
• urdf publishing on robot or on remote computer?,
• urdf publishing on robot or on remote computer?,
• Converting /scan data for Lidar that is not centered on Robot
• Converting /scan data for Lidar that is not centered on Robot
• Does gmapping require amcl?
• Does gmapping require amcl?
• Using rospy.sleep inside a callback
• Using rospy.sleep inside a callback
• Adding FIducial tag images to a gazebo model
• Adding FIducial tag images to a gazebo model
• Python program or function to compute the distance between two TFs
• Python program or function to compute the distance between two TFs
• Dynamic Recongure callback seems to happen spontaneously
• Dynamic Recongure callback seems to happen spontaneously
• [UPDATE] "Unknown Reason for Transform Failure"
• [UPDATE] "Unknown Reason for Transform Failure"
• Is raspicam_node still the right software?
• Is raspicam_node still the right software?
• Performance of nodes that process images
• Performance of nodes that process images

● Critic   × 2

• When should roscors's ros_master_uri not just be localhost?
• When should roscors's ros_master_uri not just be localhost?

● Enlightened   × 2

• Running ROS + Gazebo on Raspberry Pi
• Running ROS + Gazebo on Raspberry Pi

● Famous Question   × 228

• What exactly is the OpenCR part?
• What exactly is the OpenCR part?
• Nesting of workspaces
• Nesting of workspaces
• Missing compile step?
• Missing compile step?
• Easiest way for non-ROS program to talk to a ROS node
• Easiest way for non-ROS program to talk to a ROS node
• Installing Turtlebot3 software for the first time on remote pc
• Installing Turtlebot3 software for the first time on remote pc
• Installing ROS on Mac Sierra: a report
• Installing ROS on Mac Sierra: a report
• Best book about ROS with Python
• Best book about ROS with Python
• catkin_make_isolated: ImportError: No module named genmsg
• catkin_make_isolated: ImportError: No module named genmsg
• Continued: Installing on Mac Sierra: qt_gui_cpp_sip errors
• Continued: Installing on Mac Sierra: qt_gui_cpp_sip errors
• lz4 includes not found
• lz4 includes not found
• Difference between wstool and rosdep
• Difference between wstool and rosdep
• Can turtlebot3_fake simulate lidar and obstacles?
• Can turtlebot3_fake simulate lidar and obstacles?
• Recommended hardware for ROS development
• Recommended hardware for ROS development
• Best tutorial for learning nav_stack
• Best tutorial for learning nav_stack
• Rosdep not detecting that pyqt5 is there, despite skip-keys
• Rosdep not detecting that pyqt5 is there, despite skip-keys
• Turtlebot3 - how to work with various OpenCR sensors and actions
• Turtlebot3 - how to work with various OpenCR sensors and actions
• Skipped loading plugin with error: XML Document '/opt/ros/kinetic/share/gmapping/nodelet_plugins.xml' has no Root Element. This likely means the XML is malformed or missing.
• Skipped loading plugin with error: XML Document '/opt/ros/kinetic/share/gmapping/nodelet_plugins.xml' has no Root Element. This likely means the XML is malformed or missing.
• Installing ROS on Mac Sierra
• Installing ROS on Mac Sierra
• Rostopic on Mac
• Rostopic on Mac
• Turtlebot 3 Questions
• Turtlebot 3 Questions
• How to totally reset ROS
• How to totally reset ROS
• Create Autonomy + ROS + iRobot Create - odometry
• Create Autonomy + ROS + iRobot Create - odometry
• rosdep not properly installed
• rosdep not properly installed
• Customizing Turtlebot3 - OpenCR tweaks needed
• Customizing Turtlebot3 - OpenCR tweaks needed
• HTTP server on board Turtlebot?
• HTTP server on board Turtlebot?
• tf tutorial is displaying just one turtle instead of two
• tf tutorial is displaying just one turtle instead of two
• Using turtlesim
• Using turtlesim
• Velocity ramps - Turtlebot 3?
• Velocity ramps - Turtlebot 3?
• Roscore not finding rostopic
• Roscore not finding rostopic
• Python tutorials for Actionlib?
• Python tutorials for Actionlib?
• Where does ROS install?
• Where does ROS install?
• Gazebo seems to be crashing
• Gazebo seems to be crashing
• Localhost vs. 0.0.0.0
• Localhost vs. 0.0.0.0
• When should roscors's ros_master_uri not just be localhost?
• When should roscors's ros_master_uri not just be localhost?
• Ros Scan Topic generation by simulator
• Ros Scan Topic generation by simulator
• Robot "bucking" while driving in reverse
• Robot "bucking" while driving in reverse
• Getting information out of the /scan topic
• Getting information out of the /scan topic
• ROSPY: Interrupting with a control-c
• ROSPY: Interrupting with a control-c
• rostopic shows /odom publisher and subscriber, but topic monitor shows "unknown"
• rostopic shows /odom publisher and subscriber, but topic monitor shows "unknown"
• SLAM - definitions
• SLAM - definitions
• We are looking for a ROS robot design to build for our project
• We are looking for a ROS robot design to build for our project
• Experimenting with SLAM navigation with a simulated robot
• Experimenting with SLAM navigation with a simulated robot
• Package installation confusion
• Package installation confusion
• Inbound TCP/IP connection failed: 'function' object has no attribute 'peer_subscribe'
• Inbound TCP/IP connection failed: 'function' object has no attribute 'peer_subscribe'
• Today in 2019, will RViz and Gazebo work with X forwarding over SSH
• Today in 2019, will RViz and Gazebo work with X forwarding over SSH
• rospy.Time.now() returns 0
• rospy.Time.now() returns 0
• Running ROS and its gui tools through a docker image
• Running ROS and its gui tools through a docker image
• What kinds of robot platforms are most appropriate for ROS?
• What kinds of robot platforms are most appropriate for ROS?
• Installed ros-kinetic-turtlebot-gazebo but something weird
• Installed ros-kinetic-turtlebot-gazebo but something weird
• Sudden velocity changes and their impact on a Turtlebot
• Sudden velocity changes and their impact on a Turtlebot
• Converting raw lidar data to something more useful
• Converting raw lidar data to something more useful
• Python versions of tutorials
• Python versions of tutorials
• ROS Docker Container not able to be pulled
• ROS Docker Container not able to be pulled
• What does this do: roslaunch turtlebot3_bringup turtlebot3_remote.launch
• What does this do: roslaunch turtlebot3_bringup turtlebot3_remote.launch
• Best practice for running multiple robots in a class
• Best practice for running multiple robots in a class
• Why are these topics appearing?
• Why are these topics appearing?
• RViz keyboard control
• RViz keyboard control
• RViz UI gestures using Mac Book Pro trackpad
• RViz UI gestures using Mac Book Pro trackpad
• Gazebo crashes immediately after launching
• Gazebo crashes immediately after launching
• Stdr and RViz
• Stdr and RViz
• OpenCV "namedwindow" goes grey, is not getting events
• OpenCV "namedwindow" goes grey, is not getting events
• Is it possible to remote execute a python ROS file
• Is it possible to remote execute a python ROS file
• Can I launch rqt_console from a .launch file?
• Can I launch rqt_console from a .launch file?
• Interrupting ROS node with a ctrl+c (in terminator shell)
• Interrupting ROS node with a ctrl+c (in terminator shell)
• Inbound TCP/IP connection failed: connection from sender terminated before handshake header received. 0 bytes were received. Please check sender for additional details
• Inbound TCP/IP connection failed: connection from sender terminated before handshake header received. 0 bytes were received. Please check sender for additional details
• Other Linux Distros
• Other Linux Distros
• Need information from two different topics at once
• Need information from two different topics at once
• Traces of Gazebo left even after it has exited
• Traces of Gazebo left even after it has exited
• Help with tf2 tutorial "Writing a tf2 listener"
• Help with tf2 tutorial "Writing a tf2 listener"
• What computers are participating in ROS right now?
• What computers are participating in ROS right now?
• answers.ros question: seeing responses to my questions
• answers.ros question: seeing responses to my questions
• rospy.loginfo_throttle and _throttle_identical
• rospy.loginfo_throttle and _throttle_identical
• Where is the map stored at different times?
• Where is the map stored at different times?
• Raspicam with Rviz
• Raspicam with Rviz
• Is the tf 'tree' persistent in any way or derived from the flow of tf topics?
• Is the tf 'tree' persistent in any way or derived from the flow of tf topics?
• On MacOS: Running ROS and its gui tools through a docker image edit
• On MacOS: Running ROS and its gui tools through a docker image edit
• Running ROS + Gazebo on Raspberry Pi
• Running ROS + Gazebo on Raspberry Pi
• Obstacles seen by planning but not expected by AMCL
• Obstacles seen by planning but not expected by AMCL
• Lowest end computer that will run ROS and all its tools
• Lowest end computer that will run ROS and all its tools
• RViz Grid Direction
• RViz Grid Direction
• Any experience with aws robomaker
• Any experience with aws robomaker
• Where can I find the actual source code for the tf2 demo?
• Where can I find the actual source code for the tf2 demo?
• four wheel drive
• four wheel drive
• Lightweight alternatives to Gazebo
• Lightweight alternatives to Gazebo
• move_base constantly replanning ("got new plan")
• move_base constantly replanning ("got new plan")
• TF with unknown publisher
• TF with unknown publisher
• What are the causes of AMCL jumping around in its localization?
• What are the causes of AMCL jumping around in its localization?
• ROS via VNC "XKEYBOARD extension not present"
• ROS via VNC "XKEYBOARD extension not present"
• How to get Qhull PyHull on Mac OS Sierra
• How to get Qhull PyHull on Mac OS Sierra
• When bringing up ROS on a TurtleBot3 Lidar spins once and stops
• When bringing up ROS on a TurtleBot3 Lidar spins once and stops
• Alternative to .launch files
• Alternative to .launch files
• How to build a persistent hash?
• How to build a persistent hash?
• Amcl localization accurate, but slightly offset from lidar data
• Amcl localization accurate, but slightly offset from lidar data
• tf: I can't explain "unknown publisher" and rviz cant display laserscan
• tf: I can't explain "unknown publisher" and rviz cant display laserscan
• ROS Best Practices
• ROS Best Practices
• Predictability of cmd_vel
• Predictability of cmd_vel
• Confused about spinOnce and sleep
• Confused about spinOnce and sleep
• Safely rename catkin_ws to fix typo
• Safely rename catkin_ws to fix typo
• Rviz says LaserScan "transform [sender=unknown_pubisher]" but all evidence points against it
• Rviz says LaserScan "transform [sender=unknown_pubisher]" but all evidence points against it
• Teaching amcl and slam
• Teaching amcl and slam
• expected_update_rate
• expected_update_rate
• Other APIs for ROS
• Other APIs for ROS
• catkin_make error message
• catkin_make error message
• Getting raspicam_node running on noetic
• Getting raspicam_node running on noetic
• Converting /scan data for Lidar that is not centered on Robot
• Converting /scan data for Lidar that is not centered on Robot
• Avoid going reverse
• Avoid going reverse
• Working code for computing odometry from decoder ticks
• Working code for computing odometry from decoder ticks
• Anyone know what came of "Pyro?
• Anyone know what came of "Pyro?
• VPN use case for ROS_IP, ROS_MASTER_URI and ROS_HOSTNAME
• VPN use case for ROS_IP, ROS_MASTER_URI and ROS_HOSTNAME
• Odometry orientation in radians is giving me weird numbers
• Odometry orientation in radians is giving me weird numbers
• Using rospy.sleep inside a callback
• Using rospy.sleep inside a callback
• Should the origin of base_link and odom be the same?
• Should the origin of base_link and odom be the same?
• Trouble installing a package - "Unable to locate package"
• Trouble installing a package - "Unable to locate package"
• IMU shows continuous slow spin around z axis
• IMU shows continuous slow spin around z axis

● Nice Question   × 14

• What exactly is the OpenCR part?
• What exactly is the OpenCR part?
• Installing ROS on Mac Sierra: a report
• Installing ROS on Mac Sierra: a report
• Running ROS and its gui tools through a docker image
• Running ROS and its gui tools through a docker image
• ROSPY: Interrupting with a control-c
• ROSPY: Interrupting with a control-c
• TF with unknown publisher
• TF with unknown publisher
• rospy.Time.now() returns 0
• rospy.Time.now() returns 0
• move_base constantly replanning ("got new plan")
• move_base constantly replanning ("got new plan")

● Notable Question   × 266

• What exactly is the OpenCR part?
• What exactly is the OpenCR part?
• Where does ROS install?
• Where does ROS install?
• Difference between wstool and rosdep
• Difference between wstool and rosdep
• Installing Turtlebot3 software for the first time on remote pc
• Installing Turtlebot3 software for the first time on remote pc
• Nesting of workspaces
• Nesting of workspaces
• Missing compile step?
• Missing compile step?
• Why are these topics appearing?
• Why are these topics appearing?
• Easiest way for non-ROS program to talk to a ROS node
• Easiest way for non-ROS program to talk to a ROS node
• Best book about ROS with Python
• Best book about ROS with Python
• Installing ROS on Mac Sierra: a report
• Installing ROS on Mac Sierra: a report
• Continued: Installing on Mac Sierra: qt_gui_cpp_sip errors
• Continued: Installing on Mac Sierra: qt_gui_cpp_sip errors
• HTTP server on board Turtlebot?
• HTTP server on board Turtlebot?
• Gazebo seems to be crashing
• Gazebo seems to be crashing
• Can turtlebot3_fake simulate lidar and obstacles?
• Can turtlebot3_fake simulate lidar and obstacles?
• I may have corrupted rosdep
• I may have corrupted rosdep
• catkin_make_isolated: ImportError: No module named genmsg
• catkin_make_isolated: ImportError: No module named genmsg
• Turtlebot3 - how to work with various OpenCR sensors and actions
• Turtlebot3 - how to work with various OpenCR sensors and actions
• Questions about using stdr
• Questions about using stdr
• lz4 includes not found
• lz4 includes not found
• Using turtlesim
• Using turtlesim
• Recommended hardware for ROS development
• Recommended hardware for ROS development
• rosdep not properly installed
• rosdep not properly installed
• Create Autonomy + ROS + iRobot Create - odometry
• Create Autonomy + ROS + iRobot Create - odometry
• Python versions of tutorials
• Python versions of tutorials
• Best tutorial for learning nav_stack
• Best tutorial for learning nav_stack
• Skipped loading plugin with error: XML Document '/opt/ros/kinetic/share/gmapping/nodelet_plugins.xml' has no Root Element. This likely means the XML is malformed or missing.
• Skipped loading plugin with error: XML Document '/opt/ros/kinetic/share/gmapping/nodelet_plugins.xml' has no Root Element. This likely means the XML is malformed or missing.
• How to totally reset ROS
• How to totally reset ROS
• Rosdep not detecting that pyqt5 is there, despite skip-keys
• Rosdep not detecting that pyqt5 is there, despite skip-keys
• Turtlebot 3 Questions
• Turtlebot 3 Questions
• Favorite papers in mobile robotics?
• Favorite papers in mobile robotics?
• How to build a persistent hash?
• How to build a persistent hash?
• Python tutorials for Actionlib?
• Python tutorials for Actionlib?
• Installing ROS on Mac Sierra
• Installing ROS on Mac Sierra
• Rostopic on Mac
• Rostopic on Mac
• Customizing Turtlebot3 - OpenCR tweaks needed
• Customizing Turtlebot3 - OpenCR tweaks needed
• Ros Scan Topic generation by simulator
• Ros Scan Topic generation by simulator
• tf tutorial is displaying just one turtle instead of two
• tf tutorial is displaying just one turtle instead of two
• Mac Install (Sierra) - ERROR: the following packages/stacks could not have their rosdep keys resolved to system dependencies: webkit_dependency: No definition of [python-qt5-bindings-webkit] for OS [osx]
• Mac Install (Sierra) - ERROR: the following packages/stacks could not have their rosdep keys resolved to system dependencies: webkit_dependency: No definition of [python-qt5-bindings-webkit] for OS [osx]
• Velocity ramps - Turtlebot 3?
• Velocity ramps - Turtlebot 3?
• Roscore not finding rostopic
• Roscore not finding rostopic
• Localhost vs. 0.0.0.0
• Localhost vs. 0.0.0.0
• Experimenting with SLAM navigation with a simulated robot
• Experimenting with SLAM navigation with a simulated robot
• When should roscors's ros_master_uri not just be localhost?
• When should roscors's ros_master_uri not just be localhost?
• What computers are participating in ROS right now?
• What computers are participating in ROS right now?
• rostopic shows /odom publisher and subscriber, but topic monitor shows "unknown"
• rostopic shows /odom publisher and subscriber, but topic monitor shows "unknown"
• answers.ros question: seeing responses to my questions
• answers.ros question: seeing responses to my questions
• Converting raw lidar data to something more useful
• Converting raw lidar data to something more useful
• Modularity in software design with ROS
• Modularity in software design with ROS
• Need information from two different topics at once
• Need information from two different topics at once
• ROSPY: Interrupting with a control-c
• ROSPY: Interrupting with a control-c
• What does this do: roslaunch turtlebot3_bringup turtlebot3_remote.launch
• What does this do: roslaunch turtlebot3_bringup turtlebot3_remote.launch
• Getting information out of the /scan topic
• Getting information out of the /scan topic
• Robot "bucking" while driving in reverse
• Robot "bucking" while driving in reverse
• Installed ros-kinetic-turtlebot-gazebo but something weird
• Installed ros-kinetic-turtlebot-gazebo but something weird
• rospy.Time.now() returns 0
• rospy.Time.now() returns 0
• Traces of Gazebo left even after it has exited
• Traces of Gazebo left even after it has exited
• Interpetting a stream of cmd_vels
• Interpetting a stream of cmd_vels
• Other Linux Distros
• Other Linux Distros
• What kinds of robot platforms are most appropriate for ROS?
• What kinds of robot platforms are most appropriate for ROS?
• SLAM - definitions
• SLAM - definitions
• Sudden velocity changes and their impact on a Turtlebot
• Sudden velocity changes and their impact on a Turtlebot
• Where is the map stored at different times?
• Where is the map stored at different times?
• Predictability of cmd_vel
• Predictability of cmd_vel
• Stdr and RViz
• Stdr and RViz
• turtlebot_fake: can have no objects, correct?
• turtlebot_fake: can have no objects, correct?
• Package installation confusion
• Package installation confusion
• Best practice for running multiple robots in a class
• Best practice for running multiple robots in a class
• We are looking for a ROS robot design to build for our project
• We are looking for a ROS robot design to build for our project
• Obstacles seen by planning but not expected by AMCL
• Obstacles seen by planning but not expected by AMCL
• Inbound TCP/IP connection failed: 'function' object has no attribute 'peer_subscribe'
• Inbound TCP/IP connection failed: 'function' object has no attribute 'peer_subscribe'
• ROS Docker Container not able to be pulled
• ROS Docker Container not able to be pulled
• Today in 2019, will RViz and Gazebo work with X forwarding over SSH
• Today in 2019, will RViz and Gazebo work with X forwarding over SSH
• Running ROS and its gui tools through a docker image
• Running ROS and its gui tools through a docker image
• Gazebo crashes immediately after launching
• Gazebo crashes immediately after launching
• Interrupting ROS node with a ctrl+c (in terminator shell)
• Interrupting ROS node with a ctrl+c (in terminator shell)
• Avoid going reverse
• Avoid going reverse
• Any experience with aws robomaker
• Any experience with aws robomaker
• RViz keyboard control
• RViz keyboard control
• Can I launch rqt_console from a .launch file?
• Can I launch rqt_console from a .launch file?
• RViz UI gestures using Mac Book Pro trackpad
• RViz UI gestures using Mac Book Pro trackpad
• Is it possible to remote execute a python ROS file
• Is it possible to remote execute a python ROS file
• One lab, multiple robots, multiple independent projects
• One lab, multiple robots, multiple independent projects
• Help with tf2 tutorial "Writing a tf2 listener"
• Help with tf2 tutorial "Writing a tf2 listener"
• OpenCV "namedwindow" goes grey, is not getting events
• OpenCV "namedwindow" goes grey, is not getting events
• Is the tf 'tree' persistent in any way or derived from the flow of tf topics?
• Is the tf 'tree' persistent in any way or derived from the flow of tf topics?
• rospy.loginfo_throttle and _throttle_identical
• rospy.loginfo_throttle and _throttle_identical
• Inbound TCP/IP connection failed: connection from sender terminated before handshake header received. 0 bytes were received. Please check sender for additional details
• Inbound TCP/IP connection failed: connection from sender terminated before handshake header received. 0 bytes were received. Please check sender for additional details
• Where can I find the actual source code for the tf2 demo?
• Where can I find the actual source code for the tf2 demo?
• Other APIs for ROS
• Other APIs for ROS
• When bringing up ROS on a TurtleBot3 Lidar spins once and stops
• When bringing up ROS on a TurtleBot3 Lidar spins once and stops
• Raspicam with Rviz
• Raspicam with Rviz
• Best practices for reproducibility
• Best practices for reproducibility
• Best practice robot launch sequence
• Best practice robot launch sequence
• On MacOS: Running ROS and its gui tools through a docker image edit
• On MacOS: Running ROS and its gui tools through a docker image edit
• Running ROS + Gazebo on Raspberry Pi
• Running ROS + Gazebo on Raspberry Pi
• Lowest end computer that will run ROS and all its tools
• Lowest end computer that will run ROS and all its tools
• move_base constantly replanning ("got new plan")
• move_base constantly replanning ("got new plan")
• Lightweight alternatives to Gazebo
• Lightweight alternatives to Gazebo
• RViz Grid Direction
• RViz Grid Direction
• four wheel drive
• four wheel drive
• What are the causes of AMCL jumping around in its localization?
• What are the causes of AMCL jumping around in its localization?
• TF with unknown publisher
• TF with unknown publisher
• Why catkin_make_isolated on Rasberry Pi?
• Why catkin_make_isolated on Rasberry Pi?
• ROS via VNC "XKEYBOARD extension not present"
• ROS via VNC "XKEYBOARD extension not present"
• Amcl localization accurate, but slightly offset from lidar data
• Amcl localization accurate, but slightly offset from lidar data
• Should the origin of base_link and odom be the same?
• Should the origin of base_link and odom be the same?
• How to get Qhull PyHull on Mac OS Sierra
• How to get Qhull PyHull on Mac OS Sierra
• Confused about python versions
• Confused about python versions
• Alternative to .launch files
• Alternative to .launch files
• tf: I can't explain "unknown publisher" and rviz cant display laserscan
• tf: I can't explain "unknown publisher" and rviz cant display laserscan
• VPN use case for ROS_IP, ROS_MASTER_URI and ROS_HOSTNAME
• VPN use case for ROS_IP, ROS_MASTER_URI and ROS_HOSTNAME
• Safely rename catkin_ws to fix typo
• Safely rename catkin_ws to fix typo
• ROS Best Practices
• ROS Best Practices
• Confused about spinOnce and sleep
• Confused about spinOnce and sleep
• How is roslaunch different from a series of rosruns?
• How is roslaunch different from a series of rosruns?
• Gazebo display of colored arrows showing x,y,z
• Gazebo display of colored arrows showing x,y,z
• Conventions in wiki.ros...
• Conventions in wiki.ros...
• Rviz says LaserScan "transform [sender=unknown_pubisher]" but all evidence points against it
• Rviz says LaserScan "transform [sender=unknown_pubisher]" but all evidence points against it
• Teaching amcl and slam
• Teaching amcl and slam
• expected_update_rate
• expected_update_rate
• Getting raspicam_node running on noetic
• Getting raspicam_node running on noetic
• Anyone know what came of "Pyro?
• Anyone know what came of "Pyro?
• catkin_make error message
• catkin_make error message
• IMU shows continuous slow spin around z axis
• IMU shows continuous slow spin around z axis
• Troubleshooting new robot
• Troubleshooting new robot
• Odometry orientation in radians is giving me weird numbers
• Odometry orientation in radians is giving me weird numbers
• Converting /scan data for Lidar that is not centered on Robot
• Converting /scan data for Lidar that is not centered on Robot
• Working code for computing odometry from decoder ticks
• Working code for computing odometry from decoder ticks
• Using rospy.sleep inside a callback
• Using rospy.sleep inside a callback
• Python program or function to compute the distance between two TFs
• Python program or function to compute the distance between two TFs
• Dynamic Recongure callback seems to happen spontaneously
• Dynamic Recongure callback seems to happen spontaneously
• Trouble installing a package - "Unable to locate package"
• Trouble installing a package - "Unable to locate package"
• Performance of nodes that process images
• Performance of nodes that process images

● Student   × 2

• What exactly is the OpenCR part?
• What exactly is the OpenCR part?

● Nice Answer   × 4

• Making my code ros-independent
• Making my code ros-independent
• Running ROS + Gazebo on Raspberry Pi
• Running ROS + Gazebo on Raspberry Pi

● Necromancer   × 2

• Making my code ros-independent
• Running ROS + Gazebo on Raspberry Pi

● Great Question   × 4

• What exactly is the OpenCR part?
• What exactly is the OpenCR part?
• Running ROS and its gui tools through a docker image
• Running ROS and its gui tools through a docker image

● Associate Editor   × 1

• Roscore not finding rostopic

● Good Answer   × 2

• Running ROS + Gazebo on Raspberry Pi
• Running ROS + Gazebo on Raspberry Pi

● Self-Learner   × 6

• Missing compile step?
• Missing compile step?
• Running ROS + Gazebo on Raspberry Pi
• Running ROS + Gazebo on Raspberry Pi
• Odometry orientation in radians is giving me weird numbers
• Odometry orientation in radians is giving me weird numbers

● Teacher   × 2

• Missing compile step?
• Missing compile step?

● Editor   × 2

• Nesting of workspaces
• Nesting of workspaces

● Rapid Responder   × 5

• RViz Grid Direction
• When bringing up ROS on a TurtleBot3 Lidar spins once and stops
• ROS via VNC "XKEYBOARD extension not present"
• What are the causes of AMCL jumping around in its localization?
• Odometry orientation in radians is giving me weird numbers

● Supporter   × 2

• Continued: Installing on Mac Sierra: qt_gui_cpp_sip errors
• Continued: Installing on Mac Sierra: qt_gui_cpp_sip errors

● Scholar   × 2

• Continued: Installing on Mac Sierra: qt_gui_cpp_sip errors
• Continued: Installing on Mac Sierra: qt_gui_cpp_sip errors

● Taxonomist   × 1