the necessary of the "rosparam set use_sim_time true " in gmapping
hello, I would like to know the necessary of "rosparam set use_sim_time true " when I build exact map by using gmapping and rviz. When I used "rosparam set use_sim_time true " before "rosrun gmapping...
View ArticleIssue while creating a Map using gmapping?
Hello I am in confusion, what really the issue is in? Please any one can solved it, we urgently needed to solve it. In my mobile base Robot , we are now at the stage of creating a map using gmapping,...
View ArticleThe real turtlebo pose in gmapping
Hi, I'm a beginner in ROS and learn the gmapping package now. I would like to visualize the real robot pose and the estimated robot pose in RVIZ. Now when I run gmapping and teleop to move the robot...
View Articleways to autonomous localization of turtlebot
Hello guys, i am working on turtlebot with ROS Indigo 14.04. I have created a map of an environment using gmapping and the maps turned out to be great. I am using this map for autonomous navigation and...
View ArticleIs there a Turtlebot package software for iRobot Roomba 600 series base?
Hi!! I'm trying to make my own Turtlebot using a Roomba 645 base, a Kinect sensor and ROS Indigo. I would like to use this platform to make maps (SLAM) using Gmapping package for example. I've trying...
View ArticleMy robot position get changes automatically
Hi, I an facing one issue in ROS , Now I am at the stage of creating a map , firstly my odometry data is been correct , TF( Transform ) data between all frames is correct and the Laserscan is giving...
View ArticleZ-coordinate has to be 1 or -1
Hello, I'm starting to build a map using gmapping, but whenever I start slam_gmapping, the following warning is shown: Laser has to be mounted planar! Z-coordinate has to be 1 or -1, but gave: 0.00000...
View ArticleAlternative approach to gmapping and hector-mapping?
Hi there, i'm new to this forum and hope to ask my question the right way. I started to work with ROS. To get used to it i tested some SLAM algorithm to get a occupancy grid map. The first one was...
View ArticleHow 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...
View ArticleGmapping and tf
Hi all My robot in rviz has some problems when i run gmapping launch file. the robot model and it's wheel got to take apart. How can i fix it. Sorry for my bad english. Thanks first. Here is the image...
View ArticleHow do I use a map to reduce odometry errors?
So, I have a *.pgm and *.yaml map and I want to use it, somehow, to reduce the odometry errors. I need to get accurate locations to set point on a map and someone recomended this to me. However I...
View Articleerror when gmaping
**I met error when i use gmaping:** in rviz , i see the simulated position is 1/2 of the reality, when i was using `gmapping` + `laser_scaner` to build the map. when I echo the topic `/odom` , it shows...
View Articlehow to configure gmapping params to make the map denser?
I'm using the `gmapping/slam_gmapping` node to create the map using `ros_arduino_bridge` and `neato_laser_driver` with which the `/odom , /scan, and /tf` can be published. I referred the parameter...
View ArticleHow to create 2Dmap with p3dx with rosbag?
I recorded the data in rosbag file of /tf and /scan topics and when i run the gmapping and playback the recorded data from rosbag file nothing changes. And the error is 100% messages dropped.Do i have...
View ArticleTurtlebot Gmapping with RPLIDAR encounters errors
Hi, i know there were serveral questions about this error, but they are all about the kinect connected to the turtlebot.. I have a RPLIDAR A1 connected to the turtlebot and want to run gmapping slam...
View Articlegmapping and frontier exploration acting weird
I am trying to use frontier exploration package to solve a coverage path planning problem. The robot needs to search for a a target in an empty space. Namely, There are no landmarks except the target...
View ArticleProblem in Map buildiing using Gmapping
I have created a bag file using the attached code of bagconvert.py, The code is pasted, #!/usr/bin/env python import rospy import rosbag from sensor_msgs.msg import LaserScan from math import pi from...
View ArticleClosed Loop Detection gmapping & Hector SLAM
All, Found this [answer](http://answers.ros.org/question/199781/how-does-gmapping-detect-loop-closure/) how do I check Neff to see if a loop closure has been found/detected. Thanks Mark
View ArticleLocalizing and mapping with only tf,GPS, and scan
I need to do localizing and mapping in an environment. I don't want to use gmapping since GPS and IMU on the robot can already give a very accurate pose estimation. My question can be divided into two...
View Articletf tree details
After running gmapping from intel.bag, while generating the map, if I run rosrun tf view_frames, it gives me the frames.pdf. In this case, the transform is map->odom->base_link and...
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