Questions tagged [frame-id]

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How to set ekf_node in robot_localization?

What I'm currently doing is I'm trying to replace Gazebo 11 with Gazebo garden in this document. However, I ran into a problem when learning robot_localization. First, I try to set ekf_filter_node as ...
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ros2 publish frame_id

I created a simple image publisher node like the one below class MinimalPublisher(Node): ...
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Camera feed frame_id

Very new to ROS but I have set up a CSI camera with ROS melodic, running on ubuntu 18.04 (On jetson nano). And I am trying to overlay a pointcloud on it in rviz, however the camera visualization doesn'...
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what should the frame_id of topic "poseX" be, before use robot_localization package?

Hello: According to r_l(robot_localization) wiki, coordinate-frames-and-transforming-sensor-data doc, it can transforms ...
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base_link vs base_footprint

I have read that the navigation stacking within ROS requires the use of base_footprint. What is the difference between base_link and base_footprint? How do I know which I should use? Originally ...
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How to change the frame_id from recorded bag files [bag_tools don't work]

Hi to all, I need to change the frame_id of my imu/data topic from /base_imu to base_imu. I'...
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With ar_pose_marker can the distance between the camera and the ar code be determined?

The coordinates that I get mediange ar_pose_marker do not reflect the distance between the camera and the observed AR code. As much as I move the AR code closer to the camera, the distance between the ...
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Got confused with frame_ids

I'm fusing GPS, Visual Odometry and IMU. After reading the documentations with some try and error tests, finally I can get a reasonable output. I put the frame_id of my Visual Odometry output as odom. ...
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GPS + IMU + encoders for robot localization

Hey guys, I want to fuse gps data i am getting from my piksi multi RTK system, and an IMU, and wheel encoders. The GPS driver (http://wiki.ros.org/swiftnav_piksi) publishes the following: sensor_msgs::...
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Change frame_id in messages

I use kitti_player and robot_localization. kitti_player publich messages with framed_id "/kitti_player" but in robot_localization I get an error "frame_ids cannot start with a '/' &...
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Changing tf_prefix for turtlebot

I know that similar questions were already asked here but I still haven't found an answer to my question. I would like to create a system of several turtlebots with different names (e.g. "pinky&...
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empty frame_id when converting sensor_msgs/PointCloud2 to sensor_msgs/Image

Hi, I am using iai_kinect2(ROS Indigo and Ubuntu 14.04) to get a depth cloud from my Kinect2 in the form sensor_msgs/Image. Then, it is converted to ...
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Why is pcl_ros::transformPointCloud changing the frame_id

Hi, if got the following code: ...
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tf message_filters and child_frame_id

Message filters are handy when you want to only fire callbacks if a transform is available for the data contained therein. The user sets the target frame_id, and presumably the source frame_id is ...
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rgbdslam provides transform from /map to /camera_link... what happens in localization?

I am looking at the frames that tf is providing. In rgbdslam, it is shown that /camera_link -> /map, which is ambiguous. I understand that ...
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frame_id and child_frame_id for robot_pose_ekf

Hi, guys. I am new to ROS. I am currently trying to use robot_pose_ekf to fuse data from odometry, imu and gps. But I can't get output from the EKF package. I think it might be caused by the issue of ...
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How do I use collision_object.header.frame_id? Can I use it for frame transformations?

I want to add collision objects to the world using a frame that is broadcast by a node. Setting collision_object.header.frame_id = "task_frame" results ...
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[rviz] tf and Interactivemarker: pose with respect to which frame?

Hi all, I wonder in which frame the interactive_marker.pose field is expressed? It seems relative to interactive_marker.header.frame_id but even considering that hypothesis, I get a strange behaviour. ...
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how to create world frame!

Hi all, I've worked on simulated husky with simulated kinect to create a customize 3d occupancy map, i want to transform the pointcloud frame to map or world frame, but i don't have these frames, just ...
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frame_id for Turtlebot

Is there anywhere that I can get a list of frame_ids (coordinate frames) for Turtlebot? base_link odom kinect ? Originally posted by Solmaz on ROS Answers with karma: 3 on 2013-08-01 Post score: 0
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Displaying multiple pcd pointclouds in rviz

Is there a way to display multiple, separate pcd pointclouds (from pcd_to_pointcloud) on the same rviz screen? I published the first pointcloud by doing: $ pcd_to_pointcloud first_pc.pcd .1 /cloud_pcd:...
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What frame is sensor_msgs::Imu.orientation relative to?

I have been looking at REP 103 and REP 105 along with nav_msgs::Odometry and sensor_msgs::Imu and I would like to know if there is a standard convention for the frame that ...
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TransformListener Question

I think that this must be some sort of silly mistake on my part but.... I'm trying to use the following code. My transform tree (verified with command line tf and rviz) has /map -> /odom -> /...
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Hector_slam and frames ?!!! I'm lost

Hi all. I have a wheeled robot that provide odometry, ahrs and a laser. I'm trying to use hector_slam but I don't understand the frame and transform system. My base robot package provide an "/...
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Header frame_id

I am learning ros and I have a question regarding frame_id in the Header (like in PoseStamped). If I understand correctly frame_id means to which tf the position is relative to. So does that mean if I ...
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