Connecting tf tree and odom with Realsense t265
Hello! I've asked this question [here](https://github.com/IntelRealSense/realsense-ros/issues/749#issuecomment-508430078) as well. Just to preface this: I’m a complete beginner with both, ROS and the...
View Articleamcl not publishing map -> odom under different namespace
Hello, I'm attempting to setup a pair of turtlebots that can run simultaneously, and in order to do so, they need to run their nodes on different namespaces while both subscribing to a shared /map...
View ArticleRviz use last tf (transform) message for creating visualization
I have a map frame, a camera frame and a robot frame. The transform between map frame and the camera frame is fixed and gets published occasionally, ~10 seconds irregular intervals. The transform...
View ArticleRobot_localization is not updating movement from relative frame to world...
Hello, I am trying to set up an Extended Kalman Filter (EKF). I have the following types of sensors mounted on board of the ROV system: 1) IMU - Primarily used for Orientation 2) USBL- Sonar sensor...
View ArticleCan a frame be both parent_id and child_id?
I'm using odom as parent_id for base_link and child_frame_id for map tf in the respective launch files. Will it cause any issues in my tf tree?
View ArticleCan I publish map>-odom tf which can be used by amcl?
I want to publish map>-odom tf which can be used by amcl or other localization packages. Is there a way to do that?
View ArticleMap transform not published by AMCL.
In my tf tree, map transform is not published. I only have odom<-base_link>-base_laser. I'm using navigation stack package and I have only added "use_map_topic" parameter to true, base_frame_id...
View ArticleTransform pose from one frame to another
I'm using a tensorflow object detector to find and reproject pose estimates for objects in 3D (via a Realsense). I am publishing the local transforms, i.e. /object_n -> /camera_link, but would like...
View ArticleAmcl stops publishing map tf.
I'm using amcl for localization. I added "use map topic" to "true" in launch file for amcl to publish map frame transform (it wasn't published before). When I start amcl the tf tree is...
View ArticleIs the tf 'tree' persistent in any way or derived from the flow of tf topics?
I am trying to get a level deeper in understanding tf. Yes there are tutorials but I have yet to find a good conceptual explanation, tied to the api, so I am just experimenting and reading bits and...
View Articlefacing error in robot_state_publisher
I am following the tutorials of urdf with robot state publisher: https://wiki.ros.org/urdf/Tutorials/Using%20urdf%20with%20robot_state_publisher but after catkin_make ,I am facing the following error:...
View ArticleWhen using TF API in a plugin, can I specify the topic from which to listen...
For example the `tf::TransformListener::transformPose` method uses transformations published on `/tf` topic to compute a given pose in different coordinate frame. But I would like this method to take...
View ArticleHaving an artificial robot in the scene
I'm trying to use a [node](https://github.com/ethz-asl/voxblox) which requires the full pose of the camera I am using, as well as the TF between the camera and the robot. Since I don't have an actual...
View ArticleProblem with TF Tree in RPLidar Hector SLAM and Navigation
I'm a beginner in ROS and Robotics and have problem implementing an autonomous mobile robot. I'm getting this error: Timed out waiting for transform from base_footprint to map to become available...
View ArticleRviz: No transform from [my_new_frame] to frame [map] - adding a tf frame to...
Apologies for lack of images: I'm running this on a computer without screen capture. I am mounting a RealSense to car, and would like to have a tf defined from the camera to the base of the car. I am...
View Articlep3dx not moving to the goal
Hello, I have question. I set the goal for my p3dx and in move_base.launch I got a warns: [ WARN] [1559064696.964216030, 2184.557000000]: DWA planner failed to produce path. [ WARN]...
View Articlestore transforms for offline/batch usage
My robot is publishing kinect imagery, localization info, and transforms. I would like to record a bagfile for offline image processing and I need to store the transforms for each image (i.e., the...
View Articletf broadcaster object
Hello, My robot has detected 2d object at some distance and how can I publish the TF of that object ?
View ArticleObtaining Camera Pose via TF
I have the calibration board fixed on the work station, and I have its world coordinates, entered them in URDF, all good. I used OpenCV's pose estimation module to find the board's pose (rvecs and...
View ArticleWriting a tf broadcaster (C ++) errors
After entering a command: roslaunch learning_tf start_demo.launch Errors appear: (but I see one turtle) ERROR: cannot launch node of type [learning_tf/turtle_tf_broadcaster]: learning_tf ROS path...
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