How to navigate a robot not using Rviz '2D Goal Button' ??
Hello Im just asking this question in order to be pointed in the correct direction. I am currently completing a Navigation project for myself and have been using the turtle bot simulator using Gazebo...
View ArticleRobot Navigation without using Rviz '2D Nav Goal' Button??
Hello Im completing a project of my own to make a small autonomous robot using Slam and Lidar etc. So far I have been using the turtle bot simulator along with Gazebo and Rviz in order to create a map...
View ArticleWhere I am in a resized occupancy grid?
Hi, I'm working on my first task in ROS and ran into a problem implementing the following algorithm: These are the asumpsions we have: You can assume the following about the environment and the...
View Articlegetting robot location members to update all the time.
Hello, I'm new to ROS and I'm working on indigo and gazebo with python 2.7. I have a task to implement robotic navigation where the map is known in advance. I'm having difficulties to make my robot...
View ArticleRviz panel won't open
Hi all, This might seem like a silly question but similar issues are probably shadowing my keyword search so I haven't been able to find a post with the same exact problem. I am using ROS indigo on...
View ArticleROS solutions for large map
Hi, I'm working on path finding in a large map. I'm using the costmap_2d package with a four-layer costmap(static_map, obstables, inflation and a self-defined layer). I ran into a problem that the...
View ArticleHow to respawn kobuki or turtlebot on Gazebo
I'm trying reinforcement learning on Gazebo. If robot hit the wall,bumper sensor reaction. So, I wanna respawn robot in start position. Sorry my poor English.Do you have any idea?
View Articlehow to install ZED camera in ubuntu 14.04 CUDA 9 and ubuntu 14.04 CPU
system: nvidia-msi nvidia-msi: command not found redhwan@red:~$ nvidia-smi Fri Jan 18 15:46:07 2019 +-----------------------------------------------------------------------------+ | NVIDIA-SMI 384.130...
View ArticleIs /clock being published?
Hi Guys, This question has been asked before, however I was not able to fix the issue by using the recommended solutions. Kindly help me in understanding the reason for this prompt and also the steps...
View ArticleHow can I change the algorithm of IK service on Baxter arm
I want to move the endpoint from point A to point B while keeping the wrist joint fixed. IK sevice on the rethink robotics messes up the wrist joint. Any suggestions on how can I make the arm move...
View ArticleHow can I get pwm navdata
I just starting working with the tum_simulator, ardrone_autonomy and tum_ardrone packages. I am using the simulation in tum_simulator and not an actual drone. I first ran the launch file roslaunch...
View ArticleWhat is the difference between two setup.bash files ?
In both wiki-ros tutorials and some ros programming textbooks, the first step is to add environment variables of ROS. To do this, we execute the following command: `source /opt/ros/indigo/setup.bash`....
View ArticleI would like to ask Trajectory Scoring Parameters of DWA.
Hello. I am a ROS beginner. I am doing SLAM of turtlebot 2 in the ubuntu 14.04, ros (indigo) personal computer environment. I am asking questions by looking at the DWA page of...
View ArticleHelp in buildfarm
I'm new in Rosbuildfarm and I'm trying so hard to reach the following targets. - I want to let the Jenkins to get my Ros-Package automatic from Github repository or Private Repo and build it using. -...
View ArticleThe differences between dependency tags
I am new to Robotic Operating System, so this can be fundamental question. When I was investigating dependency tags of `package.xml` file of my newly-created package, I faced two dependency tags that I...
View ArticleAstra Camera Shows in rviz, Invalid device number in openni2
I'm working my way through the Turtlebot tutorials (http://learn.turtlebot.com/2015/02/01/8/), and I'm currently at the stage where I'm testing the 3D sensor. I'm running into a few problems since the...
View ArticleRelative Names and Default Namespace
As you know, nodes, topics, services and parameters have an identification name. By using these names, we can access and reference them. Generally, there are two main name concepts: `global names` and...
View ArticleCommunication between Kinetic and Indigo only working one-way
I am currently trying to set a Master-Slave using my laptop (Ubuntu 16.04 w/ ROS Kinetic) as master and an UDOO Quad (Ubuntu 14.04.5 LTS (GNU/Linux 3.14.56-udooqdl-02044-gddaad11 armv7l) w/ ROS Indigo...
View ArticleROS publishing "/initialpose" topic in code
Hello, I'm trying to publishing the topic "initialpose" whose type is `geometry_msgs/PoseWithCovarianceStamped` to amcl node. I successfully made a node from following c++ source code (modified from...
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