How do you add new frames to the tf tree of a Jackal robot?
I have a Jackal robot that is running ubuntu 14.04 with ROS indigo installed. I have attached a Hokuyo UTM 30lx laser to the jackal robot so I am trying to modify the jackal.urdf.xacro file to include...
View Articlerospy.Time(nsecs) bugs ?
Hi, I'm using ROS indigo on Ubuntu 14.04 I have realized that rospy.Time() hangs when called with nsecs argument: >>> rospy.Time(secs=1507324334622140084)...
View ArticleROS installation issue on ubuntu 14.04
Hi, I am trying to install these modules on a fresh ubuntu 14.04 OS "python-rosdep", "python-rosdistro", "python-rosdistro-modules", "python-catkin-pkg", "python-catkin-pkg-modules",...
View Articlegazebo velocity controller
I tried to simulate my car model in the gazebo, I built the front and rear wheel of the car, I tried to use the velocity controller in the ros_control to control my car front wheel and rear wheels...
View ArticleROS on Manjaro
Is it straightforward to install and run ROS1 indigo on [manjaro](https://manjaro.org/) (based on [archlinux](https://wiki.archlinux.org/))? Does someone know what needs to be considered in addition/in...
View ArticleHow to interpret robot's quaternion?
Hello Again! (Using Indigo/Rospy) Is there a way, using the robot's quaternion (using slam_out_pose orientation), to determine if its going towards, or away, from the center of the global map (the...
View ArticleCan't rosmake nor catkin_make pi_tracker
Hello, While attempting to rosmake "pi_tracker", It came out with an error. No package or stack specified. Add current directory 'pi_tracker-indigo-devel' is not a package name or stack name ubuntu...
View ArticleProblem insatlling ROS indigo in ubuntu 14.04: python-catkin-pkg is not...
Straight dump of error: gyan@L-7874:~$ sudo apt-get install ros-indigo-desktop-full Reading package lists... Done Building dependency tree Reading state information... Done You might want to run...
View Articlecatkin_make not happen
OS : Ubuntu 14.04 ROS : Indigo catkin_make is not working. But there is no error. Just nothing happened.  I upgraded cmake version 3.12 (before : 2.x) I created pkg with...
View ArticleEKF localization with unknown correspondence
I am working on a simulation with the huskyA200. I want to implement the EKF localization with unknown correspondences (CH7.5) in the [probabilistic robotics book by...
View Articleopenni_tracker isn't found
I tried to use this clone https://github.com/ros-drivers/openni_tracker http://wiki.ros.org/openni_tracker but i can't run the program, anyone can give any advice to this beginner? Thanks! Here is my...
View ArticleUpload or download file into YRC1000
Hi, I am currently developping an application using ROS, GP7 robot and YRC1000 controller from Yaskawa, and I want to know if it's possible to upload or download program file from the controller to...
View ArticleHow to record data from rostopics using MongoDB
I have installed the mongodb_store package on my jackal clearpath robot (Ubuntu 14.04) running ros-indigo, and I have started the mongoldb_server by running the commands: rosparam set mongodb_port...
View ArticleQuestion about joinstate publisher and navigation ?
hi , i have a real robot and i'm trying to work with the navigation stack , i don't have an urdf model and i'm wondering if the navigation and the localization depend on it ? , and i want to know if i...
View ArticleInvalid argument passed to lookupTransform argument source_frame in tf2...
I'm using the [surface_perception package](http://wiki.ros.org/surface_perception) to get some table top data but I've been getting this error message Invalid argument passed to lookupTransform...
View ArticleQuestion about imu emplacement
hi , i have a sensor imu (razor_imu_9dof) and i'm using the ekf package to combine it with the odom data that coming from encoder , my question is where should i put the imu on the robot , i have a...
View ArticleQuestion about odometry and radians unit
hi , i have a question about odometry , here is the code i'm using to get odometry from wheel encoder i don't understand something , why vth unit is m/s ? if ' th' is an angle it should be in radians...
View ArticleSourcing of containerized ROS via docker-py
I want to run a docker container wrapping ROS indigo using `docker-py` without running a command.>>> import docker>>> docker_client =...
View ArticleCan't launch/locate nodes - but nodes exist!
Hi all, I'm a ROS neophyte, trying to get my Neato Botvac D80 working with ROS Indigo, following Julian Tatsch's instructions ([part 1](http://www.tatsch.it/neato-botvac-80-wifi-mod/),[part...
View Articleerror on Installing ros on ubuntu14 i386
I'm trying to install ros by: `sudo apt-get install ros-indigo-desktop` but I got following errors: The following packages have unmet dependencies: python-rosdep : Depends: python-catkin-pkg but it is...
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