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2016-06-11 21:06:30 -0500 | marked best answer | Simulating Turtlebot with Gazebo Hello all, I'm interested in programming Turtlebot in gazebo environment. I've finished the basic stuff on its tutorial page however I'm interested in doing more advanced stuff. For example, I want to get data from either its virtual Kinect or a real one and then program it with C++ to function it as an obstacle avoiding robot. Can someone point me in the right direction ? Thanks. |
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2014-03-18 02:19:10 -0500 | answered a question | Setting robot orientation As atp suggested following this) tutorial solved my problem: |
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2014-03-12 15:00:17 -0500 | commented question | Setting robot orientation @atp How did I miss that! It helped me a lot. If you add this as an answer, I'll accept it mate. Thank you! |
2014-03-12 09:39:10 -0500 | commented question | Setting robot orientation Updated my question. Hope it's more clear now. |
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2014-03-12 03:51:26 -0500 | asked a question | Setting robot orientation Hello all, I have 2 robots erratic robots in gazebo and I want them to have approximately the same orientation. I am trying following piece of code but it doesn't seem to have any effect on my robot's rotation. |
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2014-03-11 04:08:21 -0500 | commented answer | Transform listener can't find base_link It says I need more than 25 points for that. |
2014-03-09 12:03:51 -0500 | answered a question | Transform listener can't find base_link Adding this line solved the problem: so the final code is: |
2014-03-09 11:49:15 -0500 | asked a question | Transform listener can't find base_link Hello all, I'm trying to read values from base_link frame in order to get my robot's coordinates with the following code: However, all I get is an error.
I can visualize base_link in rviz or read it's values on terminal using rostopic echo so I'm pretty sure it exists. Any help is much appreciated. |
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2014-01-31 13:33:27 -0500 | asked a question | Stage/Player integration with ROS Hello all, I've been working on Stage(3.2.2)/Player(3.0.2) for a while. I need to integrate it with ROS in order to get to next step in my project. So, in Player/Stage you have a .cfg and a .world file. You run the .cfg and then run an executable on the background in order to control your robot. What I want is to publish Player as a ROS(Groovy preffered) node (I guess it is essentially the same thing as connecting to the drivers that are defined in .cfg file using ROS) rather than connecting to Stage directly through ROS. I think the hierarchy between them should be like this: ROS->Player->Exe->Stage. The http://wiki.ros.org/player page doesn't seem to have anything useful for a beginner like me. An example configuration would be great for example. Would appreciate any help. Thanks. Update: I've found the following tutorial->brice-rebsamen.blogspot.com.tr/2011/05/first-exercise-with-ros-node-to.html So, as far as i can understand the whole player package becomes a node to ROS and then i can subcribe to the proxies i defined in my code through it. |
2014-01-28 17:33:02 -0500 | marked best answer | Setting joint velocity in Gazebo Hello all, I'm trying to simulate an obstacle avoiding robot in gazebo. I've been following this tutorial. The problem is that this tutorial uses the following function in order to move the robot.
The problem with that is it eventually makes robot to spin. So i looked in API ref and found
Code compiles just fine however, this doesn't seem to have any effect on model. So how can I set velocity of wheels from a plugin ? |
2014-01-28 17:32:49 -0500 | marked best answer | Kinect with rviz I am a beginner of both ROS, Kinect and Ubuntu. What i want is to visualize kinect data on rviz environment then run object recognition on it. I've tried a few tutorials but had no luck. All I got was an empty rviz world. Since I am a beginner I would appreciate any step-by-step intructions (preferably for hydro or groovy). I would also like to note that I've menaged to get visual from kinect so the device is working fine. |
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2014-01-20 08:28:51 -0500 | asked a question | Player/Stage installation issues Hello all, I'm trying to run player/stage in groovy. I believe installation of stage is done just fine since I can follow this tutorial without any problems.
The problems start to occur when i try to run After navigating to I simply try running to by I tried to solve it by doing the following: and then reinstalling stage/player as mentioned in here. However, I keep getting the same error. Any help is much appreciated. |