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Simulation of URDF, Gazebo and Rviz | ROS Noetic Tutorial 8

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Design a User-defined robot of your choice (or you can use the URDF file) and enable the LIDAR Scanner so that any obstacle placed on the path of the light scan will cut the light rays. Visualize the robot in the Gazebo workspace, and also show the demonstration in RViz.   (NB: Gain knowledge on wiring URDF file and .launch file for enabling any user-defined robot to get launched in the gazebo platform.) SLAM : One of the most popular applications of ROS is SLAM(Simultaneous Localization and Mapping). The objective of the SLAM in mobile robotics is to construct and update the map of an unexplored environment with the help of the available sensors attached to the robot which will be used for exploring. URDF: Unified Robotics Description Format, URDF, is an XML specification used in academia and industry to model multibody systems such as robotic manipulator arms for manufacturing assembly lines and animatronic robots for amusement parks. URDF is especially popular with users of the Robo
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Installing NS-2.35 in Fedora 20 (64 bit)

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Installing ns2 under Fedora 20 is same as Fedora 19. However, there are some slight changes in the installation pattern.
Refer to this post for downloading the ns2.35 software and pre installation steps:

http://www.nsnam.com/2013/09/installing-network-simulator-2-ns-2-35-in-fedora-19.html

Steps for Fedora 20

During the software customization in Fedora 20, I have selected all the softwares in GNOME Desktop. So I did not tried the following command. However, if you have installed Fedora 20 with default set of softwares, there here is the step to install all the developmental libraries.

$prompt] yum install tcl tk gcc-c++ libX11-devel libXt-devel libXmu-devel 

You need to change the file ns-2.35/linkstate/ls.h file as specified below.
in Line number 137, change erase( to this->erase

 
The installation will report an error if the above change is not made.

Once installed, set the PATH in /home/pradeepkumar/.bash_profile file, in my case here is my path information.

PATH=$PATH:$HOME/.local/bin:$HOME/bin:/home/pradeepkumar/ns-allinone-2.35/bin:/home/pradeepkumar/ns-allinone-2.35/tcl8.5.10/unix:/home/pradeepkumar/ns-allinone-2.35/tk8.5.10/unix
 
export LD_LIBRARY_PATH=/home/pradeepkumar/ns-allinone-2.35/otcl-1.14:/home/pradeepkumar/ns-allinone-2.35/lib
Here is the screenshot of my file
ns-2.35 in fedora 20
NS2 in Fedora 20

 T S Pradeep Kumar
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