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2019-08-28 11:43:56 -0500 commented answer Turtlebot navigation through narrow passageway

Hey @Rayner, so what were your parameters which worked? Could you please share them?

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2019-08-23 00:16:52 -0500 marked best answer Does move_base require Twist from Odometry?

I'm trying to make a turtlebot like robot using only the RPLidar. Hence I donot have a good source for odometry. I'm getting the Pose2D using laser_scan_matcher, and can use the values and represent it in nav_msgs/Odometry.

I've also found a way to use these pose2D values with /scan headers to roughly calculate velocities.

But I want to know is it mandatory to have Twist information for move_base to work? Or does move_base only require Pose from the odometry messages?

2019-08-23 00:16:39 -0500 commented answer Does move_base require Twist from Odometry?

Hi, yes robot_localisation should work too. I'm currently getting good results with laser_scan_matcher with a custom odo

2019-08-22 08:34:00 -0500 marked best answer Where can I find Ubuntu Mate 16.04 ISO to install ROS Kinetic on Raspberry Pi

I want to use ROS Kinetic on a network with my PC and Raspberry PI. And to do so, I want to isntall ubuntu mate on my pi. But on the official website, they have removed the link to download ubuntu mate 16.04. I tried installing melodic with mate 18.04, but have problems with rosserial on arduino. I get an error saying version mismatch as melodic has Rev 1 whereas kinetic has Rev0.

Can anyone provide me a link to the OS image? Thanks

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2019-08-20 08:41:08 -0500 commented answer Is it possible to convert geometry_msgs PoseStamped to nav_msgs Odometry?

Yes. That sounds like a good option. Thanks! I'm currently using headers from /scan and pose2D from laser_scan_matcher t

2019-08-20 03:43:45 -0500 commented answer Is it possible to convert geometry_msgs PoseStamped to nav_msgs Odometry?

No it is not a duplicate. The robot setup is same but they are fundamentally two different problems

2019-08-19 16:39:45 -0500 asked a question Does move_base require Twist from Odometry?

Does move_base require Twist from Odometry? I'm trying to make a turtlebot like robot using only the RPLidar. Hence I do

2019-08-19 15:33:32 -0500 commented question replacement of odometry in navigation stack

Facing same issue. Did you find the answer @IvyKK ?

2019-08-19 15:31:25 -0500 commented question Using external opencv version - kinetic

Try running the following code at top: import sys sys.path.remove('/opt/ros/kinetic/lib/python2.7/dist-packages')

2019-08-19 15:27:49 -0500 edited question Creating fake Odometry

Creating fake Odometry I am trying to build a robot similar to the turtlebot. But my only sensor input is LaserScan from

2019-08-19 15:27:34 -0500 edited question Creating fake Odometry

Creating fake Odometry I am trying to build a robot similar to the turtlebot. But my only sensor input is LaserScan from

2019-08-19 15:25:06 -0500 edited question Is it possible to convert geometry_msgs PoseStamped to nav_msgs Odometry?

Is it possible to convert geometry_msgs PoseStamped to nav_msgs Odometry? I am trying to build a differential drive robo

2019-08-19 09:58:20 -0500 asked a question Creating fake Odometry

Creating fake Odometry I am trying to build a robot similar to the turtlebot. But my only sensor input is LaserScan from

2019-08-19 09:47:49 -0500 asked a question Is it possible to convert geometry_msgs PoseStamped to nav_msgs Odometry?

Is it possible to convert geometry_msgs PoseStamped to nav_msgs Odometry? I am trying to build a differential drive robo

2019-08-16 06:17:13 -0500 commented answer Obtaining nav_msgs/Odometry from a laser_scan (eg. with laser_scan_matcher)

Hi! I'm unable to do it. I'm getting error with CMakeLists and there seems to be some errors in laser_scan_matcher_odom.

2019-08-16 05:41:58 -0500 commented answer Change path of rosrun. Couldn't find executables?

replace exec_file with your file name

2019-08-14 07:24:50 -0500 commented answer Retrieve velocity data from twist messages

Hey @vonovak one quick question - Are the velocity commands in m/s and angular velocity in rads/sec? or is there any oth

2019-08-13 07:33:26 -0500 answered a question can't locate node in package

For python nodes, writing it as type="file.py" instead of just type="file" works for me.

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2019-08-13 03:46:21 -0500 commented answer Errors at catkin_make for laser_scan_matcher

Works for Kinetic as well

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2019-08-12 03:59:43 -0500 commented answer What tf frames are required for autonomous navigation?

Thanks! I just saw some robots having very detailed tf_tree with even wheels and such transforms due to which I got this

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2019-08-11 08:03:51 -0500 asked a question Where can I find Ubuntu Mate 16.04 ISO to install ROS Kinetic on Raspberry Pi

Where can I find Ubuntu Mate 16.04 ISO to install ROS Kinetic on Raspberry Pi I want to use ROS Kinetic on a network wit

2019-08-11 07:43:02 -0500 asked a question What tf frames are required for autonomous navigation?

What tf frames are required for autonomous navigation? I am new trying to implement autonomous navigation on my 2WD driv

2019-08-09 08:39:12 -0500 asked a question Can't locate node turtle_tf_message_filter in Kinetic

Can't locate node turtle_tf_message_filter in Kinetic I'm reading through the tf tutorials and reading about sensor tf.

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2019-07-16 05:59:47 -0500 answered a question Help with rplidar sdk installation and port error on ubuntu 16.10

I had the same error. For me, changing the USB wire worked. Yep, it was that simple for me

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2019-06-10 02:16:17 -0500 commented question Multiple turtlebot3 navigation base_footprint to map solution

Hey! It would be better if you could post the question and answer separately in their given sections. This would let one

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2019-06-09 13:53:44 -0500 edited question Using Hector_SLAM to get odom for autonomous navigation

How to use /poseupdate or /slam_out_pose from hector_mapping as /odom for base_local_planner My aim is to implement auto

2019-06-09 13:52:16 -0500 commented answer Can't see Interactive markers in rViz when working with MoveIt!

Has this been fixed?

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