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Error when running slam_gmapping tutorial

I followed this tutorial: http://wiki.ros.org/slam_gmapping/Tutorials/MappingFromLoggedData I used the provided bag file to test. When playing the bag file back I keep getting a warning message from...

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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...

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Odometry for a holonomic robot with 3 wheels

Hi, Considering a mobile base robot with 3 omni-directional wheels, is there a ROS package that would convert motor encoder position to an odometry message (pose and twist) to feed to the navigation...

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No transform from [robot0/robot0/map] to [world]

Hey everyone I was trying to add a fixed "World" frame to add my separate TF trees (robot/map -> robot/odom -> robot/base_link) using a static transform publisher, when I came across this...

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How do you integrate IMU data with odom data generated from Gazebo Skid Steer...

I have gmapping working with a skid steer robot while utilizing the Gazebo skid steer plugin to actuate and control my robot. I am attempting to add an IMU and fuse the data from that sensor with the...

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Problem creating a map with gmapping

I added a laser scanner to a custom robot model, but when I ran the the gmap node. The robot was not mapping the environment. The warnings I got when I ran my launch file are : Timed out waiting for...

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Gmapping with V-REP

Hello, I'm doing a course project whose goal is to build a SLAM simulation with ROS and V-REP. I'm new to ROS and V-REP and I'd like some help from you guys. Here is what I did: 1. I created a scene...

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GMapping with dynamic objects and occupancy updates

Hi Everyone, I am using GMapping as my mapping package using a MRS6124 (I have a node to convert to laserscan). My problem is that GMapping doesn't update an obstacles location on the map when the...

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How to load a map in the SLAM for the resumption of the SLAM in uncharted areas

On the first day, using SLAM, I create a corridor map and save it via map_saver. On the second day, I need to load the map into the SLAM and continue creating the map in the unexplored rooms. If I...

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Automatic generation of map of a world

I'm new to ros and I`m working on turtlebot to understand things clearly. I know we can use the gmapping module with a keyboard/joystick as operator but let's say I have lot of maps and I do not want...

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ROSSharp RVIZ Odometry Issue

Hello together, I am facing following problem: The robot in RVIZ does not move accordingly to the behavior in Unity, I am using ROSSharp with Unity and ROS is running on a Ubuntu VM. ROS Distribution...

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What do the colors in gmapping mean?

I'm pretty new to ROS and I've been trying to do gmapping for turtlebot2 and turtlebot3 on Ubuntu 16.04 ROS-kinetic. I have been successful, however I've been trying to figure what the different colors...

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Error launching Gmapping node on ROS

Hi, I am using ROS kinetic on ubuntu 16 and have installed the binaries for openslam and slam_gmapping using the command `sudo apt-get install ros-kinetic-slam-gmapping and sudo apt-get install...

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gmapping cannot create map

Ubuntu16.04LTS & ROS Kinetic got issues like this [ WARN] [1544758709.859826979]: MessageFilter [target=odom ]: Dropped 100.00% of messages so far. Please turn the [ros.gmapping.message_notifier]...

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Help with Localization Algorithm

Hello, I've been working on creating a simulation of an autonomous robot and I'm very new to ROS. Till now I've used Gmapping algorithm which successfully generates a 2D map now I need Localization...

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How to use depthimage_to_laserscan package to create map?

I am running rosrun depthimage_to_laserscan depthimage_to_laserscan and the scan topic is published and when I rosbag record -o /scan /tf the scan topic is not been recorded and the map is not...

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slam_gmapping Laser is mounted upwards

Hello friends, I am trying to run rosrun gmapping slam_gmapping and I am facing with this result . [ INFO] [1546503887.324696498]: Laser is mounted upwards. Error in...

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SLAM Gmapping map to odom remapping error

Hello, I am trying to perform slam_gmapping for my project, and using filtered odometry obtained using ekf. However, the tf_tree shows that map->odom (this is for slam_gmapping), and second side of...

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Poor quality maps produced from odometry based slam algorithms tested in real...

We are currently testing several slam algorithms in a real TurtleBot(ROS Kinetic). Despite the fact that everything seems to be working fine on TurtleBot we have come across a problem on the maps...

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map_saver for different map topics

Hey there. I am trying to figure out how is possible to use rosrun map_server map_saver -f name_of_map in order to save maps simultaneously made by different gmapping nodes, that is, how to save maps...

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