wheel rotates, but robot moves slowly
I was trying to send cmd_vel command to a diff-drive robot in gazebo as in http://www.generationrobots.com/blog/en/2015/02/robotic-simulation-scenarios-with-gazebo-and-ros/ After some work, I was able...
View ArticleNew Gazebo plugin for ROS control to simulate control packet latency:...
Dear Gazebo Community, Gazebo seems to lack the feature of simulating the effects of control latency that would make it a fully-fledged cyber-physical system (CPS) simulator. The CPS that we address...
View ArticleManipulator joint constraints
Hi, i am trying to implement a manipulator inside gazebo, by writing my own SDF file. I have written the geometry and joint basing on existing examples, but when I spawn the robot, it goes limp. I...
View ArticleWhich user input devices can be used beside Razer Hydra?
I can see from the tutorials section that the Razer Hydra can be used with Gazebo, but what about others such as playstation, xbox or other console-agnostic controllers?
View ArticleHow to change gravity in python code/questions on reseting the model
Hey guys, I have a few questions, sorry if there are simple answers but I couldn't find them in any of the tutorials. I am trying to create a simple walker with 8 joints to use with reinforcement...
View ArticleIs it possible to run automated tests from within Gazebo?
Suppose I have a custom URDF robot and that I'm trying to find an optimal value for a certain parameter. For example, suppose this robot is a car and I want to test 100 different wheel sizes to see...
View ArticleHow do I build a world for free flying robotics simulations in space (no...
I am new to gazebo and am looking to do some free flying space robotics simulations. How do I remove gravity and the ground when building a world? Is there a world I can load that has stars in the...
View ArticleApplying force to 'ball' joint
I am using plugin to apply force to certain ball joints, however I am getting this error: [Err] [Joint.cc:1025] Calling Joint::SetForce with an index [2] out of range [Err] [ODEJoint.cc:1149]...
View ArticleSimulating GPS outage due to tree foliage
Howdy folks, I'd like to simulate GPS outage/degradation due to tree foliage in Gazebo. This is conceivably "relatively easy" to do if I knew where all the tree model objects are located in Gazebo. I...
View ArticleROS Timer Bug? Only occurs when using Gazebo
Hello, this is a forked question from ros answers. There I'm referring to an issue where I see a relation to gazebo and hope to attract some attention of the gazebo community. The discussion and a...
View Articleresize simple objects to specific sizes
I am trying to load simple objects into the empty world of gazebo (box, cylinder and sphere.) and scale their sizes to specific values (say x = 2,y=1,z=3 for a box). The below image can give a better...
View ArticleHow to get the terrain elevation (z) at specific (x,y) location
I am interesting in programmatically spawn models on a terrain in a random fashion, so i am wondering whether, there is some tool that allow querying for the z coordinate of a terrain given the (x,y)...
View ArticleApplying a force to a link in gazebo plugin
I am trying to simulate an autonomous surface vehicle with an azimuthing thruster. I set up a basic model and want to apply a force to the thruster in the thruster's reference frame. What...
View ArticleProbelm of Parallel physics Gazebo
We want to try the Parallel physics Gazebo, which list on the website: http://gazebosim.org/tutorials?tut=parallel&cat=physics However, we can not install this version of Gazebo successfully under...
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Despite Their Political Differences, Utah And Rhode Island Have a Common...
Rediscovering A Civil Rights Activist And Legal Scholar In March 2012, just one year after his passing, Derrick Bell took over as focus of right-wing haters, especially Sean Hannity and , in the attack...
View ArticleApplying collision bitmasks to ray sensors
Is there any way to apply a collision bit mask to a ray or GPU ray sensor such that it will only detect collision models with corresponding masks? I am trying to create models with "glass" walls where...
View ArticleYouth Use Social Networking To Wish Rahul Gandhi On Birthday
In today's modern day environment, personal privacy it's essentially obsolete. Your telephone conversations may be secretly recorded; you might be easily spied lets start work on hidden cameras and...
View ArticleGetting forward dynamics of a model
I have a robot model in the form of an sdf file (relatively simple). Now, I have a certain control policy which manipulates torques applied to robot joints, but the real system is set up in a way that...
View ArticleMultiple Instances of GZServer and GZWeb
I am newbie to gazebo and gzweb. What I am doing is to connect multiple users to different sessions of gzweb on my computer. Once a user logged in with their account, system will login to their account...
View ArticleManipulator model bugging out
This is a followup to the question here: http://answers.gazebosim.org/question/17153/manipulator-joint-constraints/ I can't seem to figure out how the fourth link causes problems depicted here, when...
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