Author: Alessandro Di Fava < alessandro.difava@pal-robotics.com >
Maintainer: Jordi Pages < jordi.pages@pal-robotics.com >
Support: tiago-support@pal-robotics.com
Source: https://github.com/pal-robotics/tiago_dual_tutorials.git
 Please ask about problems and questions regarding this tutorial on answers.ros.org. Don't forget to include in your question the link to this page, the versions of your OS & ROS, and also add appropriate tags. |
Create a map with gmapping
Description: This tutorial shows how to create a map of the environment using the range-finder on the base of TIAGo++.Keywords: Mapping, laser scan matching
Tutorial Level: INTERMEDIATE
Next Tutorial: Localization
Contents
Purpose
This tutorial shows how to create a laser map of the environment with the public simulation of TIAGo++ using gmapping. The map is required to use afterwards AMCL based localization to match laser scans with the map to provide reliable estimates of the robot pose in the map.
Pre-Requisites
First make sure that the tutorials are properly installed along with the TIAGo simulation, as shown in the Tutorials Installation Section.
Execution
First of all open two consoles and source TIAGo++'s public simulation workspace in each one
cd ~/tiago_dual_public_ws source ./devel/setup.bash
In the first console launch one of the following simulation:
Starting TIAGo ++ simulation
roslaunch tiago_dual_2dnav_gazebo tiago_dual_mapping.launch public_sim:=true
Note that a rviz will also show up in order to visualize the mapping process.
Starting TIAGo OMNI ++ simulation
roslaunch tiago_dual_2dnav_gazebo tiago_dual_mapping.launch public_sim:=true base_type:=omni_base
Note that a rviz will also show up in order to visualize the mapping process.
Mapping
In the second console launch the keyboard teleoperation node
rosrun key_teleop key_teleop.py
By pressing the arrow keys on this console drive TIAGo++ around the world. The map being created will be shown. When the world has been fully mapped, as in the below example
Press 'q' in the key_teleop console and save the map as follows
rosservice call /pal_map_manager/save_map "directory: ''"
The service call will save the map in the following folder
~/.pal/tiago_dual_maps/config
If the folder ~/.pal/tiago_dual_maps doesn't exist, please create it and run again the previous command to save the map. Now TIAGo++ is ready to do autonomous localization and path planning using the map. See next tutorial on how to make use of maps to perform autonomous navigation.
