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2019-08-18 15:54:49 -0500 commented question Polynomial Curve as Marker (Similar to visualization msgs) in rviz

Line Strip will do but it won't be smoother as actual curve though. I looking to obtain the curve as an input for the au

2019-08-18 08:05:48 -0500 asked a question Polynomial Curve as Marker (Similar to visualization msgs) in rviz

Polynomial Curve as Marker (Similar to visualization msgs) in rviz I have a polynomial curve fitted (pink colored) betwe

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2019-08-09 03:37:14 -0500 edited answer How to install cv_bridge?

A most simple one would be installed from the Ubuntu terminal: sudo apt-get install ros-(ROS version name)-cv-bridge s

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2018-11-05 05:15:02 -0500 asked a question Teb_local_planner handling static obstacles that are not in the map?

Teb_local_planner handling static obstacles that are not in the map? Hey, i am trying to use the teb_local_planner to av

2017-07-01 11:54:45 -0500 answered a question tf transform tutorial issue (past extrapolation)

it is just the timing issue. Using rospy.spin() instead of rate.sleep() might solve the problem.

2017-06-30 07:59:37 -0500 answered a question ros kinetic opencv2 dependency not found

Well, it could not detect OpenCV2 package in ROS Kinetic version because kinetic has an OpenCV3 package in their Debain

2017-05-24 07:55:28 -0500 edited answer How to install cv_bridge?

Most simple one would be installing from the ubuntu terminal: sudo apt-get install ros-(ROS version name)-cv-bridge su

2017-05-24 07:53:03 -0500 answered a question How to install cv_bridge?

Most simple one would be installing from the ubuntu terminal: sudo apt-get install ros-(ROS version name)-cv-bridge su

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2017-01-22 11:54:41 -0500 marked best answer Reasons for marker or markerarray to be invisible in rviz?

I am working on driverless cars for motion planning.The car environment was already built (like odometry,car pose..)and my part was building planning algorithm.I got some trajectories,paths,goal position as markers from planning part..first I am running launch file related to car environment and then running the launch file related to planning with rviz now so that I can visualize everything together...now the problem was that I am getting all markers in rviz (status ok in display panel) but I couldnt able to visualize the markers generated by planner alone....but it is getting published while doing rostopic echo!! What are possible reasons for markers to be not visible in rviz in this case?

Any help is much appreciated!

P.S: I set alpha to 1 in all markers,and all the markers in both car environment and planning part are having same marker header...

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2016-05-17 16:12:19 -0500 commented answer Good Path following controller for ROS!

ros-control seems to be good option to proceed on but there are lot of existing controllers already in it! Do u know which controller will be feasible for car-like robot?

ros navigation won't adapt for my environment i guess and i will look into pure pursuit code!

2016-05-17 16:08:27 -0500 commented answer Good Path following controller for ROS!

Thanks for the much detailed answer croesmann. My planner will give trajectory according to kinodynamic constraints of car-like robot. (but i have also taken those trajectories poses and stored as way points with nav_msgs::Path message type !). My controller just have to follow feasible path!

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2016-05-17 08:26:34 -0500 asked a question Good Path following controller for ROS!

Hello people,

I am trying to generate collision free trajectory using specific planning algorithm and i got my trajectories from my planner and now i need a path-following controller to make the car-like robot to follow the concern trajectory.

So it there any good in-built path following controller code in ROS that i can use directly? Or any suggestions which controller that i can use? ( i am already trying to built pure-pursuit controller on my own, but i am bit lost!)

Any help will be much grateful!!

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