Questions tagged [ros]

ROS (Robot Operating System) is a free, open-source robot software framework initially developed by Willow Garage. And now under the maintenance of Open Robotics.

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rosbag play & tf static_transform_publisher

I've recorded some data and realized one of my static transforms was wrong. Specifically, I'm want to run robot_pose_ekf, but my /base_footprint to /imu transform is upside down. I want to play back ...
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Pr2MotorsAnalyzers

Hi all, I have read analyzer http://www.ros.org/wiki/diagnostics/Tutorials/Creating%20a%20Diagnostic%20Analyzer and checked it. It works. I use SICK LMS200 with Pioneer-3DX, how can i collect ...
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How to transform PointCloud2 with TF?

Hi, I'm writing a small node aggregating data from a Kinect sensor (PointCloud2) taken from different angle of view. I therefore use the tf library to transform all images in the /world frame before ...
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Which quadrotor has the best ROS support?

We are looking to buy a quadrotor, and I was wondering which quadrotor is currently best supported by ros. Originally posted by Yogi on ROS Answers with karma: 411 on 2011-02-16 Post score: 1 ...
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Is it possible to have memory mapped messages in ROS?

Sending huge messages like images over a pipe can slow things down a lot. Is there a way we can have memory mapped messages in ROS? Originally posted by Yogi on ROS Answers with karma: 411 on 2011-02-...
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usb_cam: VIDIOC_S_FMT error 22

When using usb_cam package, I get the following error message: VIDIOC_S_FMT error 22, Invalid argument Originally posted by fergs on ROS Answers with karma: 13902 on 2011-02-16 Post score: 4 ...
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How can I get a unique device path for my Arduino/FTDI device

I'd like to be able to access my Arduino that uses an FTDI USB-Serial device with a unique path. However, the order of /dev/ttyUSB devices depends on which device is plugged in first or USB bus ...
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Is anybody in ROS community using PySide?

If not, what about PyQt? Originally posted by Alex Bravo on ROS Answers with karma: 901 on 2011-02-16 Post score: 2
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Has anyone used any haptic devices in conjunction with ROS?

Or even just on Linux--the ROS interfacing is probably relatively simple. I'd be interested to hear of anyone's experiences with any kind of haptic input devices, though I'm interested mostly in ...
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How to visualize surface normals as Marker::Arrow for each point in rviz?

Hi, I would like to show the surface normals of a point cloud in rviz. Below is what I was trying: Create a MarkerArray and corresponding publisher Resize the MarkerArray with the size of the point ...
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What driver should I use for my USB camera?

I see people using lots of different ROS packages to work with their USB webcams. What are the options? What cameras does the driver support? Which features does it have? What's the license? Where ...
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Collisions not detected between attached object and environment?

Hi, I'm now facing a new issue in my implementation of the manipulation stack: the collisions between the object I just picked up (which is correctly attached to the hand) and the environment don't ...
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VSLAM based navigation with Kinect, where do I begin?

I'm interested in developing a robot (UAV) indoor navigation system basing on a MS Kinect (or Kinect-like, like the PrimeSense dev kit) sensor. I'm specifically interested in corridor following. I've ...
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Where is the commenting tool?

I cannot find any clickable under the posts. Originally posted by Homer Manalo on ROS Answers with karma: 475 on 2011-02-16 Post score: 4 Original comments Comment by blueskin on 2011-02-16: There ...
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How can I speed up image rectification?

I hope to increase the rectified frame rate that I'm getting from image_proc. I'm feeding it a 64 fps 704x456 video stream, with that 704x456 rectangle being the region of interest sampled from a ...
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vslam eigen and compile_error

Hello, I am trying to compile vslam as instructed but halting at some error mentioned below: Is there anything that i am suppose to make link to eigen3 externally? [rosmake-3] Finished <<< ...
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ROS + Lego NXT + Kinect?

Here's a question I received recently, thought it would be good to put up here: My project group is going to try programming a Lego Mindstorm NXT robot and the Kinect. We are currently still trying ...
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Is ROS.org the only place of information about ROS?

Are there other places? Originally posted by Alex Bravo on ROS Answers with karma: 901 on 2011-02-15 Post score: 2
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Supported platforms

On which platforms is ROS supported? Originally posted by Wim on ROS Answers with karma: 2915 on 2011-02-15 Post score: 1 Original comments Comment by tfoote on 2011-02-15: Please remember to accept ...
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How do I find people around me who use ROS?

I live in a medium-size city. Is there a way for me to find other people in my area that use ROS? Originally posted by Alex Bravo on ROS Answers with karma: 901 on 2011-02-15 Post score: 12
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Is there ROS documentation in languages other than English?

Do other people around the world use ROS? Or is it only a US thing? Is there ROS documentation in languages other than English? Originally posted by Alex Bravo on ROS Answers with karma: 901 on 2011-...
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Is ROS only for Computer Scientists?

I see ROS is being used by several top-level universities. Do I have to be a computer scientist to use ROS? Originally posted by Alex Bravo on ROS Answers with karma: 901 on 2011-02-15 Post score: 5 ...
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how do I revise my original question

My question went out when only 10% complete. I don't know why. The page says I can revise it, but it does not say how. Originally posted by joq on ROS Answers with karma: 25443 on 2011-02-15 Post ...
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How can I get involved in ROS community?

I'm just starting to learn ROS. Is there anything I can do to help ROS while I'm learning it? Originally posted by Alex Bravo on ROS Answers with karma: 901 on 2011-02-15 Post score: 3
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Which robot can or should I get to run ROS?

I've heard a lot of good things about ROS and I want to try running it. PR2 is a little too expensive to me though. Is there anything more afordable to give ROS a try? What is the best use of my money?...
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How can two identical nodelets in one process remap topics and services?

I want to run a stereo pair of 1394 cameras as nodelets. It would be good to run both in the same address space with stereo_image_proc. But, I can't figure out how to remap the topic and service names ...
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Where's *the* ROS executable?

I'm used to running eclipse, chrome.exe and gimp by just clicking on an icon. Now I read all this stuff about ROS nodes and launch files... Is there a way to just click an icon and make my robot run? ...
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pr2_computer_monitor with lm_sensors

I would like to create a similar node as the pr2_computer_monitor, but I do not have access to a computer with IMPI (as I would assume most people don't have). I was wondering if anyone has written a ...
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Which IDE(s) do ROS developers use?

While emacs and vi are great, there are also advantages in using IDEs, especially for code exploration and debugging. Which IDE(s) do developers use for C++, Python and other languages? Originally ...
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How to get notified of new questions with a certain tag by email?

As the maintainer of cwru-ros-pkg, I'd be interested in getting notified by email of any new questions that are tagged with my repo name (or the stacks or packages contained therein). Is that possible?...
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What are the units and coordinate conventions in ROS?

Has ROS agreed on a units standard? Originally posted by mwise on ROS Answers with karma: 208 on 2011-02-15 Post score: 4
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Is ROS still looking at using Qt?

A while ago there was a discussion of moving from wxWidgets to Qt and PySide: Moving from wxWidgets to Qt How does ROS community feel about Qt in light of recent Nokia-Microsoft partnership ...
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How do I add a new stereo or monocular camera to ROS?

Do I need to write my own "driver"? (That is code that interfaces with the camera APIs and publishes to ROS?) In that case, what do I publish? Do I give only raw image output or is there a ...
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How do I get Karma?

I want to know how to earn karma on this site. Originally posted by Tully on ROS Answers with karma: 1145 on 2011-02-15 Post score: 15
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Is ROS Answers an Alternative to the [ros-users] Mailing List?

This may be a meta-question, but is ROS Answers an alternative to the [ros-users] mailing list? The search, tagging and editing facilities cerainly make ROS Answers a better medium. Originally posted ...
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How can I use the navigation stack on a carlike robot?

AFAIK the navigation stack in its current state does not work for a carlike robot. The last time I checked, base_local_planner required the robot to be able to turn in place. Would I have to implement ...
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ROS and Ubuntu 10.10

Could ROS work under Ubuntu 10.10? Originally posted by noonv on ROS Answers with karma: 471 on 2011-02-14 Post score: 2
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PS3joy six axis with bluetooth keyboard and mouse

I was just wondering if anyone has tried to use the ps3joy package with a bluetooth keyboard and mouse and run into the issue I am having. The instructions on the wiki detail how to allow the ps3 ...
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ROS in VMWare, No information shown in rviz

I installed ROS on a VMWare Ubuntu image on a MAC. I am using a kinect camera, when I run roslaunch openni_camera openni_kinect.launch, it is good. but there is nothing shows in rviz, no message ...
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Gumstix, uvc_camera and cv_capture

I've observed something surprising with a small UVC camera on the gumstix overo. If I use the camera_node from uvc_camera, I get barely 2 fps in 640x480. On the other hand, if I make a small ...
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Can I add tags to an existing question?

And if so, how? Originally posted by Patrick Bouffard on ROS Answers with karma: 2264 on 2011-02-14 Post score: 2
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Synchronize throttling

Does the throttle node under topic_tools support synchronized throttling? I have a stereo camera and I'm logging left/image_rect, right/image_rect and the relevant camera info topics. Is there an easy ...
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BSD license questions

I have a general question about BSD licenses for statically compiled libraries. The BSD license states, among other things, {{{ Redistribution and use in source and binary forms, with or without ...
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omniwheel design in urdf

Do you know any ros-package including an omni-wheel urdf? Or does anyone happen to design an omniwheel in urdf? I just don't want to re-invent the wheel :) By the way, what I mean by omni-wheel is the ...
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ROS Answers SE migration: pcl bag_to_pcd

I'm trying to convert a bagfile into pcd files using bag_to_pcd. But everything I get is [ERROR] [1297703460.328842013]: You requested a transform at time 1292497206.348, but the tf buffer only ...
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unable to get valid path when calling /ompl_planning/plan_kinematic_path

I feel a little desperate since I don't know what I'm doing wrong here: From within our grasp_planner, I want to call the "/plan_kinematic_path" service from the ompl package. Here is how I ...
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Plume Sim in ROS

I have used plume sim in Player/Stage - now I want to use it in ROS. However, I am not able to get much of a clue about installing it and using it. Originally posted by Tully on ROS Answers with ...
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What are the best practices for tagging questions?

I have a question which refers to a specific stack or package how should I tag it? Originally posted by Tully on ROS Answers with karma: 1145 on 2011-02-14 Post score: 8
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Using XACRO for Generating URDF Files

Generally, at what point does a project become large enough to justify the added time of writing a .xacro file (xml macro for generating URDF files) versus just using a hand-written URDF file? ...
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When should one use answers.ros.org vs. the ros-users mailing list?

There should be some straightforward guidelines as to which one to pick. Also what is the scope of answers.ros.org, is it the same as ros-users? What about questions that would otherwise have been ...
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