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Questions tagged [transform-broadcaster]

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tf2 sendTransform() not actually sending anything

I'm trying to send a transformation from "world" to "base_link" based on coordinates I get from a different node. The node is actually running, and it is reaching the ROS_INFO() ...
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Tf broadcaster dynamically changing values

Hi guys, my robot's sensor angle can be changed during its run so the transformations have to be dynamically changed. For now I have a node which reads pointclouds from the sensor, detects the angle ...
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How to feed physical dimensions of robot to navigation stack?

I have just successfully finished my simulation and just assembled my robot hardware. Now i want to setup navigation stack in my real robot. In the simulation, the navigation stack will take the ...
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Best practice with tf transforms

Hey, I've got a small problem: I have three laser scanners mounted at my robot with -> frames: (name -> tf frame) Hokuyo 1 -> hokuyo1_frame Hokuyo 2 -> hokuyo2_frame Another 4 layer Laser ...
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Right Angle Turn Problem

Hi, I'm trying to move my urdf model on a rectangular/square trajectory in rviz. In order to do that I try to broadcast certain transforms within certain time intervals using a timer. But the robot ...
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Using tf for plotting frames in rviz

So I'm developing some lab exercises for an introductory robotics course. In one of the first labs, we want students to be able to plot tf frames in rviz by defining the transformations between them: <...
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Applying rotations to coordinate frames using TF

Hello, I have two frames on my robot, /base_link and /frame_imu. The imu is positioned 90deg in the positive yaw direction relative to the robot center(or /base_link). So basically a roll in the imu's ...
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Setting up the tf tree for multiple robots

There seem to be a great many "silently overlooked" aspects of getting multiple robots to work correctly. At this page I read that each robot (nodes) should be run with the correct tf_prefix,...
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tf broadcaster synchronization

supposed that i have two broadcasters that declare my robot's frame transformation (odom->base_link, base_link->base_laser), which are written in two different python files, (cuz it's convenient ...
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Determining number of subscribers to a TransformBroadcaster

How do I determine the number of subscribers to my TransformBroadcaster? Usually when you do a Publisher, you can call Publisher::getNumSubscribers() to determine if you want to publish that message. ...
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tf re-boadcaster

I would like a way to publish tf transforms, but using a standard ros::Publisher instead of the tf::TransformBroadcaster. (I won't go into the reasons why). The only way I think this can be done is ...
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tf listener/broadcaster

Hi, I'm looking for a way to transform coordinates from one from to another, but without setting up a broadcaster and listener. Is there a way to just call the transform function? Or if I need the ...
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distinguishing between openni_tracker broadcasts based on which user's information is being sent

I am making a node that receives transforms from openni_tracker. Is there a way to make my node distinguish between transforms being sent for User 1, User 2, etc...? Originally posted by qdocehf on ...
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from PoseStamped message to tf StampedTransform

What's the neatest way to change a PoseStamped message into a StampedTransform to be published through a transform_broadcaster? Originally posted by quimnuss on ROS Answers with karma: 169 on 2011-06-...
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