Gmapping and robot_localization
Hello We are using the robot_localization package to provide a state estimate by fusing IMU-data in 1 ekf_localization_node. We want to use gmapping for slam but we don't exactly know how to configure...
View ArticleStartExploration and StartMapping not working with Nav2d and Turtlebot3
We are trying to execute Tutorial 3 using a Turtlebot3 robot and gmapping. The map is appearing in rviz and teleoperation is working. However, when we send the StartExploration command, the robot does...
View Articleturtlebot estimates wrong 2D pose on rviz when using amcl_demo
Heres what I am trying to do: I am trying to basically create a SLAM map using a turtlebot and RPLIDAR A2 to get a slam map. After doing so I want to launch amcl_demo and use the orbecc astra and give...
View ArticleHow to set up robot_localization with gmapping, IMU and GPS
Hello I am planning to use robot_localization to localize my boat, equipped with a 2D laser scanner, 9 dof IMU and GPS. My plan was to use 1 kf_localization_node that has, as inputs, the output of the...
View ArticleHow to speed up map building with gmapping?
I have a pipeline that tries different parameters of gmapping and save the results to a folder. After letting them run I can just examine the pictures and see which maps turned out well and chose...
View ArticleGMapping and Laser_scan_matcher stopped working.
Hey there, I'm working on a robot to create maps via "Gmapping" and" Laser_scan_matcher" with a "sick tim 571", used with the "sick_tim" package, on a robot plattform. I use ROS kinetic on an Ubuntu...
View ArticleUsing SLAM algorithms on a bagfile
Kinetic, Linux 16.04 **Goal** I've bagfiled an experiment of Gmapping with a turtlebot, and want to unleash the Cartographer algorithm on this bagfile. **Code** turtlebot_gmapping.launch, used in the...
View ArticleHow to access and send occupancy grid data from a callback function...
So I made a map using the gmapping tool and I made a callback function to get the occupancy grid. But the problem is that I am not able to send that data to other function as I want to convert that...
View Articlerviz (occupancy grid) map doesn't match the one I save as pgm
Kinetic, Linux 16.04 I've done an experiment with a SLAM algorithm (gmapping) which makes a 'map' in rviz, from black and white cells (this is the occupancy grid). I then use a little script to save...
View ArticleProbability occupancy grid with Turtlebot's Gmapping?
Kinetic, Ubuntu 16.04 Turtlebot3 using Gmapping Gmapping uses a threshold to turn its maps into a binary map of cells that have either 'occupied' or 'free' (or 'unknown'). However, I need to use the...
View ArticleGmapping doesn't mark free spaces
in the documentation for Gmapping it is said : > The maximum range of the sensor. If regions with no obstacles within the range of the sensor should appear as free space in the map, set maxUrange...
View ArticleLocalise simultaneously in previous and current map
How can we localise in a real time map (similar to SLAM) as well as in a previously created saved map? It is something like combining amcl and gmapping to work together(although they don't work...
View ArticleMark unknown area as free space in gmapping
My gmapping launch is as below For the space where there is no obstacle within the maxRange, gmapping should mark the space as free space but it marks it as unknown. How do I make it mark this area as...
View ArticleHow to successfully run gmapping_demo on turtlebot2?
Hello! I have a turtlebot2. And my ros distro is kinetic. And I just tried to use it to build a map with slam, following the tutorial on the...
View ArticleSome errors when running gmapping_demo on a turtlebot
Hello! I have a turtlebot2. And my ros distro is kinetic. And I just tried to use it to build a map with slam, following the tutorial on the...
View ArticleSome errors when running gmapping_demo on a turtlebot
Hello! I have a turtlebot2. And my ros distro is kinetic. And I just tried to use it to build a map with slam, following the tutorial on the website....
View ArticleHow can the map used by a robot running gmapping be dynamically changed such...
Essentially I want to merge two maps using an algorithm, but when I finish merging, how do I get the robot running gMapping to use the merged map instead of the map stored in its gsp Tnode for its...
View ArticleWhy gets gmapping worse when i lower the laser angle
I'm using ROS Indigo with the Jackal from Clearpath. I did lower the laser angle from 270° to 90° in the sick_lms1xx.urdf.xarco file. In Simulation gmapping creates (because of that change) a very bad...
View ArticleNoisy laser scan from Kinect V2
I have a Turtlebot with Kinect V2 and using [kinect2_bridge](https://github.com/code-iai/iai_kinect2/tree/master/kinect2_bridge) for publishing depth images and...
View ArticleMerge multiple maps in kinetic
How do you merge multiple maps (generated by map_server map_saver) to form a single map? I want to generate a single map of a building with high accuracy. Then I will use the map in AMCL for...
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