TF Error while running AMCL (turtlebot). Waiting on transform from /base_link...
Hi, I have a world in gazebo(fuerte) with turtlebot in it and I have the map of the world too. After launching the world, when I try to launch the launch file described below, I get this warning: `[...
View ArticleTransform from base_link to odom failed on Stage
I am starting to learn how to program a robot controller on C++. For now, I just want my robot to repetitively travel 1m straight until it runs into an obstacle. When I run my program on Stage, the...
View ArticleUsing SLAM Gmapping on Stage with Fuerte
I am having trouble using Gmapping on Stage along with a very basic controller publishing on *cmd_vel* and reading from *base_scan*. Here is my launch file: However, this doesn't work; I receive the...
View ArticleStageros: cannot change z coordinate of base_link → base_laser tf
Hello all, for any reason I cannot put the laser of my robot at its real height in the Stage-simulated version. The maximum z I get is 0.15 m! No idea why. I have tried to resize the robot model, to...
View ArticleHow to get robot position (x,y) in a map?
Hi, I want to **calculate robot's current position** with respect to the **map**. Autonomous navigation of ROS works **fine**. Initially, I thought that by listening to **/amcl_pose topic**, we can get...
View ArticleCould not find a connection between '/map' and '/base_link'
Hi, I want to **calculate robot's current position with respect to the map**. Autonomous navigation of ROS works **fine**. Following is my **"rosrun tf view_frames"** [tf...
View Articlerosrun tf tf_echo /map /base_link VS. Coding implementation.
Hi, I want to calculate robot's current position with respect to the map. **Following is my "rosrun tf view_frames"** [tf tree](http://answers.ros.org/upfiles/13988714412451395.jpg) I have tried...
View ArticleLaser -> point cloud, tf drop all packages
hi, all, I am super new to ROS. I am trying to use tf to transform the laser input to tf base_link frame. But I am constantly getting error msg like "MessageFilter [target=base_link ]: Dropped 100.00%...
View Articleset up a TF broadcaster for laser input
hi, All, I am trying to compose a broadcaster node to take in raw laser readings and converted to robot base frame. is there any tutorial/example I can refer to? input sensor_msgs::LaserScan laser_in;...
View ArticleHow to publish transform from odom to base_link?
I have a Recorded rosbag file which contains Laserscan data (LMS100) linked to base_link. I trying to use amcl and localize the robot in the map, but amcl needs odom->baselink so that it can publish...
View Article/tf from /base_link to /camera_link
Hi, I'm using ccny_rgbd_tools which gives me a transform between /camera_link, which is the base_frame, and /odom, which is the fixed_frame. I'm using MoveIt!, where I have a urdf model which as a...
View Articlewhich frame I should use ?
I used laser_geometry tutorial and I have this code: LaserScanToPointCloud(ros::NodeHandle n): n_(n), // laser_sub_(n_, "base_scan", 10), laser_sub_(n_, "/laserscan", 1),...
View Article[Groovy] How to link /scan to base_link?
When I launch my move_base.launch, ( http://wiki.ros.org/navigation/Tutorials/RobotSetup) , I got this error : Waiting on transform from /base_link to /map to become available before running costmap,...
View Articlelaser_frame not moving
I have the following scheme in simulation enviroment with Gazebo and Rviz: laser_frame -> base_link -> base_stabilized -> base_footprint -> odom -> map -> world laser_frame to...
View Article[Hydro] Error in move_base.launch rviz
I succed finally to launch my move_base.launch file. And when with rviz I tried to tell where the robot is in the map, with the 2d Pose Estime, i got this message : Failed to transform initial pose in...
View Articlestatic_transform_publisher base_link base_laser
hi everyone Is this line enough in order to use tf package for set a fixed relation between base_link and base_laser frames in my launch file? and do i need other nodes or scripts to set /map frames...
View ArticleWhere do I put base_footprint?
So I have a urdf for my robot, with the tree root as `base_link`. However, I am using `robot_pose_ekf`, which has a hard-coded transform for `base_footprint`. Assuming a simple square `base_footprint`,...
View Articlechanging the dimention of the base link moved the robot upward from the ground
I have a mobile robot "husky" I have the following things in a urdf file: In the same urdf file I have this information related to the base link: 10 I changed in the stl file the dimension of the...
View Articlemore than one odom->base_link transform
Hello, I am using rtabmap rgbd_odometry node and data from IMU feeded to robot_pose_ekf node. This gives me stable odometry. This stable odometry data publishes a odom->base_link transform. Apart...
View ArticleRViz - RobotModel -> base_link -> 'show trail' history
I'm trying to display the trail of my robot in RViz. I know that it's possible by publishing a visualization_msgs/Marker something like in this tutorial: [Markers: Points and Lines...
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