Need Info on simulated turtlebot2(melodic and/or kinetic)

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@ljaniec have you ever used a simulated turtlebot2?, Im trying to gmap with it now but its not working. I want to create a map

Does this setup not work for you in your case?

@ljaniec some of the steps used in the textbook dont work.

Which one? Please describe these steps and we will try to resolve them :^)

@Ijaniec forget what I asked about ros melodic, I have started using a real turtlebot2, I have been following the instructions from the book you suggested, all was going well until I ran this command on my remote PC roslaunch turtlebot_rviz_launchers view_navigation.launch

I get this error:

QXcbConnection: Could not connect to display 
[rviz-1] process has died [pid 8017, exit code -6, cmd /opt/ros/kinetic/lib/rviz/rviz -d /opt/ros/kinetic/share/turtlebot_rviz_launchers/rviz/navigation.rviz __name:=rviz __log:=/home/turtlebot/.ros/log/39de43b2-7fed-11ec-a022-a0510b03a27d/rviz-1.log].
log file: /home/turtlebot/.ros/log/39de43b2-7fed-11ec-a022-a0510b03a27d/rviz-1*.log

I dont know why, I can eleop my robot from my remote pc, and this same command that gives me an error on remote PC works just fine when I run it on the laptop connected to the turtlebot2 itself. DO you know whats going on?

I have found some similar issues, I am not sure if they can help you though: link1, link2, link3. It seems like the QXcvConnection couldn't connect to your monitor through your connection, did you use -X option with ssh?

@ljaniec I think my problem was that I didnt have the turtlebot package in my remote PC. I'll install it and see what happens. Also, what planner does turtlebot2 use? DO I just install the ROS navigation stack to use that? I ask because I which to use DWA_local_planner for my tirtlebot2 and I need to change it's parameters to fit my use. When I'm using a turtlebot3 I can roscd turtlebot3_navigation and find the .yaml files that hold the parameters I wish to change. Is there a roscd turtlebot2_navigation type thing?

There is a tutorial for a navigation stack setup on the TurtleBot and an example exercises. The general navigation package has a few tutorials too. I hope it could help you.