what is a joint and a link, and how does the child and parent parameter work...
I am working on modifying the PX4 gazebo simulator by adding a camera. I am unable to add the camera as the quadcopter take off but the camera get left behind. Can someone explain the difference and...
View ArticleConnectDeleteEntity event doesn't work in World Plugin
Hello everybody, I want to make a world plugin with events callback, everything work perfectly except the ConnectDeleteEntity event. With the following code, when we create a model, we get a "Add"...
View ArticleMarker-like functionality in Gazebo
Are there any plugins for Gazebo that provide functionality similar to the Marker plugin for rviz? If not, I'll look into creating a visual plugin that wraps the DynamicLines class to support ROS nodes...
View ArticleHow to add a dynamic visual marker in gazebo?
I have a regular robot model in gazebo and i'd like to display some forces applied on a link for visualization and validation purposes. What would be the best way to do this? I'm looking for something...
View Articlewhere is model://camera ?
I am working on adding 2 camera sensors to my quad, but it uses the same link. Eventhough, I rename the joint. I am thinking of creating another camera model folder and rename the model. However, I do...
View ArticleTutorial: Intermediate: Connect to ROS - Laser is not spinning
Hi, i have recently started with Gazebo and ROS hence I thought it is a good start doing the tutorial http://gazebosim.org/tutorials?cat=guided_i&tut=guided_i6 I have followed all the previous...
View ArticleScala language with Gazebo
Hi, Can somebody give me some information about combining Gazebo with another programming languages? I'm interesting in some problem where i should to write program in **scala** programming language to...
View ArticleScala language with Gazebo
Hi, Can somebody give me some information about combining Gazebo with another programming languages? I'm interesting in some problem where i should to write program in scala programming language to...
View ArticleGazebo contact sensor added to a robot link in urdf file is not working as...
I have added a contact sensor to one of the finger links of a robot's gripper as follows:bh_finger_13_link_collision 5 On lauching the urdf file, I am getting the `gazebo topics...
View ArticlePlugin order of execution
I'm trying to use Boost IPC mechanisms to communicate between an external application and some gazebo plugins. I'm not using the transport layer because speed is critical for my application, and IPC...
View ArticleGazeboRosMagnetic sensor seems to be mounted backwards by default - How to...
Hi, I am using GazeboRosMagnetic sensor plugin from hector_gazebo_plugins and due to some reason it seems to be mounted backwards. Because after reading the heading value, my robot turns and goes...
View ArticleHelp needed for making a C++ listener to gazebo topic
Hi, I am trying to create a simple listener/subscriber for a gazebo topic, but I have been having limited success due to c++ issues. When I compile the following simple code it works fine:...
View Articlegazebo ros drone with two front cameras
Hi. Is it possible to make Gazebo simulation environment for drone model with ROS? There should be two cameras connected to OpenCV on front of drone. It would be great, if i could use ROS with Java....
View ArticleCreating N links using a For Loop in Xacro
I wonder if it is possible to construct a for loop to build N wheels sub-assemblies for a mobile robot in a xacro.urdf file. I have already created an URDF using Xacro for the mobile robot and the...
View Articlealternative to meshlab for moment of inertia calculation
whch is the best free software like meshlab which can be used for moment of inertia calculation of collada file except meshlab?Currentely my computer only has ubuntu in it. I installed the meshlab...
View ArticleChanging max step size affects angular velocity
Hi, I was recently graphing the **relative angular velocity** of a link(applying torque via ROS' Wrench service) and decided to change the "max step size" in Gazebo GUI parameters from 0.0001 to...
View ArticleHow to send joint position to robot?
Hello everyone, I am new about this filed and i need some help to start. I have a robot modell kuka iiwa in gazebo and i have been looking for how to move the joint from terminal. I already installed...
View Articlegazebo8 depends on libignition-math2 and libignition-math3, which conflict
I have installed gazebo 8 from the debs on Ubuntu 16.04. I'm getting an error that libignition-math2.so.2 is not found. When I try to install libignition-math2, apt tries to uninstall gazebo8 and the...
View ArticleAttach plugin to included laser model
Hello, My sdf model contains an included [Hokuyo laser](https://bitbucket.org/osrf/gazebo_models/src/6cd587c0a30e/hokuyo/model.sdf?at=default&fileviewer=file-view-default), and I tried to attach...
View Articlerealloc(): invalid pointer in gazebo startup
When I try to start gazebo-8, I get a realloc() error. The top part of the log is below: ======= Backtrace: ========= /lib/x86_64-linux-gnu/libc.so.6(+0x777e5)[0x7f756875a7e5]...
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