Solmaz's profile - activity

We added this line to our launch file in order to run a node on another machine:

<machine name="robot" address="robot.dynamic.edu" env-loader="/opt/ros/groovy/env.sh" user="turtlebot"/>

The problem is we get this error:

<a href="http://robot.dynamic.edu">robot.dynamic.edu</a> is not in your SSH known_hosts file.

Please manually:
   ssh <a href="mailto:turtlebot@robot.dynamic.edu">turtlebot@robot.dynamic.edu</a>

then try roslaunching again.

If you wish to configure roslaunch to automatically recognize unknown hosts, please set the environment variable ROSLAUNCH_SSH_UNKNOWN=1

Our environment variable is set to:

#!/usr/bin/env sh
# generated from catkin/cmake/templates/env.sh.in

if [ $# -eq 0 ] ; then
   /bin/echo "Usage: env.sh COMMANDS"
   /bin/echo "Calling env.sh without arguments is not supported anymore. Instead spawn a subshell and source a setup file manually."
   exit 1
else
  . "/opt/ros/groovy/setup.sh"
  exec "$@"
fi

Say we have use this to introduce our machine in our launch file

<machine name="Robot" address="localhost" default="true" ros-root="/u/user/ros/ros/" ros-package-path="/u/user/ros/ros-pkg"/>

How can I include a launch file which is on this remote machine (Robot) in my launch file?

What kind of overhead camera (high precision) do you recommend to purchase for object tracking. Is there any particular kind that works the best with the ROS?

I am configuring a user account on a Fedora machine to use ROS which is installed in the administer account. When I use

$rosdep update

reading in sources list data from /etc/ros/rosdep/sources.list.d ... (couple of lines that I am not allowed to put here, they are online link) Ignore legacy gbpdistro "groovy" Ignore legacy gbpdistro "hydro" Query rosdistro index ... Add distro "groovy" Add distro "hydro" updated cache in /home/solmaz/.ros/rosdep/sources.cache

Then when I try

$ source /opt/ros/grooby/setup.bash

I get

CATKIN_SHELL=bash: Command not found. Illegal variable name.

or when I try

$ export | grep ROS

I get

export: Command not found.

I need help in fixing this. Please explain your solution a bit in detail.

Is there anywhere that I can get a list of frame_ids (coordinate frames) for Turtlebot? base_link odom kinect ?

How much graph card memory I need to run the Gazebo efficiently? Is 1GB nVidia enough?

Can anyone help me (maybe already have) writing a simple program to subscribe to TutleBotSensorState and use a callback function to display some of the data, for example temperature.

I am planning to buy a new desktop specifically to use ROS and Turtlebot application. Is there a best option to go after. It would be nice to have a machine with Ubuntue and perhaps ROS pre-installed and a graphic card that is going to be the best option for Gazebo and rviz.

Hi, I would like to write a node that reads data from a file, a vector and a matrix, and as part of the task this node is supposed to preform I need to multiply the vector by the matrix. Is there already a data structure in ROS library that one can use to create vectors and matrices. If so, How does the matrix multiplication is carried out?

I am trying to stablish bi-directional connection between workstation and a netbook of a Turtlebot robot. The netbook uses the school wireless network and I can not get an static IP for it however it is accessible through a wireless address like turtle.dynamic.blabla.edu. The instructions to set the ROS_HOSTNAME and ROS_MASTER_URI are based on using IP address, is ti possible to use wireless name/address instead of IP and if yes, how should I do it?

Thank you

I have installed ROS in my home directory as an administer user. When other users, even with admin privilege, try to run ros commands, they receive the command can not be found message. Is there anyway that I give other users access to run ROS using my software?

I would like to link to an external library of C++ ncurses. How I can do this in the make file of ROS? I use Electric.