TF problem using vrep and ros
Hello, I am using V-rep in order to simulate a scenario. I have a robot publishing laser scanner data and odometry to corresponding topics. I run through ros the slam_gmapping node and I visualise the...
View Articlewhy cannot use tf::Quaternion and tf::createQuaternionMsgfromYaw in arduino
I try to use **tf::Quaternion and tf::createQuaternionMsgfromYaw in arduino** I have **included** ros.h and tf/transform_broadcaster.h but when I build the code in arduino ide , it shows error: >...
View ArticleNo transform between base_footprint and base_link
I have an URDF file with a fixed joint between base_footprint & base_link, but robot_state_publisher isn't publishing a tf transform between those 2 links. My understanding is that...
View Articlestatic frame visible in tf_tree but not in RViz
I am playing a bag file which has the following tf tree structure odom --> base_link --> (lidar, gps, imu) I want to publish a frame 'base_footprint' which is a child of 'base_link' with a...
View ArticleWhether subscriber/ listener using visual transform (tf )can be implemented...
My requirement is that, I need to run a **tf listener** in **windows machine**. either through Python script or cpp code. I was able to run ,Simple Publisher and Subscriber (Python) on a Windows...
View Article[Fixed] Gmapping 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 ArticleSupported for implementing tf functionality of ROS on a Windows Platform
Hi,, I want to get a confirmation on whether the **tf functionality of ROS** is supported on a **Windows Platform.** I have tried and tested the simple publisher and listener on Windows Platform. But...
View Articleissue while building a map
hi i am trying to build a map using slam i am using arduino with ROS. i am using arduino duo and it publish imu data and encoder and subscribe to cmd vel know every thing is good all the odometer data...
View Articlestatic transformer question
Hi I am trying to build a map using slam. I am using Arduino due and Ros indigo, I am capable of building map with few error I have this line in my launch file: node pkg="tf"...
View Articlehow to use gmapping based on laser_scan_matcher?
I now only have .pcap file collected by my velodyne. I want to test gampping without a moving robot. Here are the steps I did: roslaunch velodyne_pointcloud VLP16_points.launch...
View ArticleLaser_Ortho_Projector Transformation
Hi, I am having tf issues with scan tool as in in this link -> http://wiki.ros.org/laser_ortho_projector Under the package summary, it states that the tf transformation of world → base_ortho is...
View Articlear_track_alvar causes TF_NAN_INPUT:
I am running ar_track_alvar successfully, but it causes tf transform nodes to output errors such as: TF_NAN_INPUT: Ignoring transform for child_frame_id "ar_marker_111" I'm pretty sure the errors are...
View ArticleConfigure frame IDs for mavros local_position/odom
Hi, I have a system of 4 UAVs with 4 pixhawks and 4 on-board computers. A ground station is controlling the ROS master. I have a problem managing UAV poses. Mavros publishes local_position/odom with...
View Article"use_sim_time" parameter disabled tf
Hello,every one, After I added `` in my launch file,the rviz can not show the tf tree and there was an error in the RobotModel:`No transform from [base_laser]to[odom]` and a warning in Global Status:...
View ArticleHaving trouble with making openni_depth_frame a visable child of Baxter's...
I'm using a kinect with Baxter. I am having a problem getting baxter to move one of its hands to a humans hand to grab something from it. In order to track people I am using openni.launch from the...
View ArticleWhat's the difference between "laser" and "scan" of tf
When I write the above. I'm not clear about the names of tf frames, especially for the "laser". Is this argument always like this even if my sensor topic is "/scan" ? Does it mean the frame name is...
View Articletf_prefix and tf2_web_republisher (URDF visualization in browser)
Hello everybody ! I have manage to display my custom urdf file in my browser by using [this tutorial](http://wiki.ros.org/urdf/Tutorials/Using%20urdf%20with%20robot_state_publisher). However, when I...
View ArticleFrame Transformation using Laser_Geometry package
Hi, I am just wondering if it is possible to use the `laser_geometry` package for a fixed-tilt RPLidar A2 2D sensor? If I tilt it at a fixed angle (30deg) , is there a way to project that tilted laser...
View ArticleTranslating between left handed co-ordinate system and right handed...
I have a rosbag that publishes IMU information in the left hand coordinate system but as I read in [REP 103](http://www.ros.org/reps/rep-0103) , the coordinate systems in ros are all right handed. How...
View ArticleRotate rtabmap's local_costmap?
We're using rtabmap and only our local costmap is incorrectly rotated 90 degrees :(. We've tried using TF to rotate a few things with the static_transform_publisher but haven't been successful. Do you...
View Article