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2021-04-12 05:39:43 -0500 received badge  Notable Question (source)
2021-02-26 21:27:13 -0500 answered a question How I can access joints values like angle_0?

One option is to write a plugin, probably a model plugin, that uses the model to get the joint, and then call Position/G

2021-01-25 11:46:30 -0500 received badge  Nice Answer (source)
2021-01-22 12:14:00 -0500 answered a question Publish data without ROS

You can use ignition-transport and write C++ code to publish/subscribe without using ROS.

2021-01-22 12:11:49 -0500 answered a question Fixed Joints are Detaching and Moving

I think you're right, I've seen this before with low masses (not inertia specifically). Try setting the mass to be 0.001

2021-01-19 09:06:30 -0500 edited answer Is it possible to add transparency property to an object? [SOLVED]

UPDATE: In gazebo 11 it seems the "a" argument to diffuse and friends don't work. You can still used material scripts,

2021-01-11 09:08:09 -0500 answered a question Create a sim environnement for CNC router

you have the camera set to "static" https://github.com/arnauddomes/floating_camera_gazebo/blob/master/src/mybot_descript

2020-12-18 12:52:08 -0500 received badge  Notable Question (source)
2020-12-13 11:47:20 -0500 answered a question Does setModelState block such that the next sensor readings account for the modified scene?

It does, sort of: https://github.com/ros-simulation/gazebo_ros_pkgs/blob/kinetic-devel/gazebo_ros/src/gazebo_ros_api_plu

2020-12-11 19:44:20 -0500 commented answer Why should I use a ROS plugin instead of the GAZEBO camera?

You can follow that tutorial to set up the gazebo sensor, and then write your own plugin. I don't know of any tutorials,

2020-11-27 11:07:22 -0500 answered a question Why should I use a ROS plugin instead of the GAZEBO camera?

The ROS plugin just offers a ROS api for the gazebo camera, it doesn't do much work besides that. If you want to use the

2020-11-25 12:55:42 -0500 answered a question How to close a four bar link?

you could manually write the SDF and include the ros_control tags. Manually keeping a urdf and sdf in sync is not that b

2020-11-25 12:53:08 -0500 received badge  Popular Question (source)
2020-11-10 08:19:03 -0500 answered a question angle_0 in joints gazebo

Just a guess, but that's probably the result of GetPosition(0) so it would be the position/coordinate (which for revolut

2020-11-02 14:33:59 -0500 asked a question Is there a mutex that guarantees a link pointer will remain valid?

Is there a mutex that guarantees a link pointer will remain valid? If I want to call a function of a LinkPtr, I need to

2020-11-01 14:15:52 -0500 commented answer does anyone know of a plugin for applying forces with the mouse?

Thanks for the suggestions, but no that's not what I mean. What I want is to click and drag on a link, and have it apply

2020-10-26 13:44:39 -0500 asked a question does anyone know of a plugin for applying forces with the mouse?

does anyone know of a plugin for applying forces with the mouse? Does anyone know of a plugin for applying forces with t

2020-10-26 13:39:53 -0500 commented answer kinematic links use case?

another option is to merge the links. you can have multiple collision and or visual elements in one link

2020-10-15 14:43:22 -0500 answered a question kinematic links use case?

I love kinematic links, they're great for cheating/hacking things. For example, let's say I have a rope model and I want

2020-10-15 14:38:06 -0500 answered a question Gazebo crashes, Assertion `px != 0' failed

there errors usually come from trying to access joints or links through pointer that do not exist. you must always test

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2020-06-27 19:40:54 -0500 asked a question Collision checking between mesh and sphere causes segfault

Collision checking between mesh and sphere causes segfault This is mostly an ODE question, but I'm hoping someone here c

2020-06-27 19:37:49 -0500 answered a question ODE dCollide only checks AABB

The Gazebo ODE ray wrapper code seems to be checking collision in a limited way, first using only the AABB. I would call

2020-06-27 16:20:40 -0500 answered a question How to actuate the ball joint in Gazebo?

Your question is not very clear, but I would warn you that actuating ball joints is not supported, I would guess because

2020-06-27 16:17:51 -0500 received badge  Popular Question (source)
2020-06-17 02:01:44 -0500 asked a question ODE dCollide only checks AABB

ODE dCollide only checks AABB It seems that the GetIntersection function of the RayShape class for ODE uses dCollider be

2020-04-17 15:04:22 -0500 edited answer Where is element <gazebo> in the source code parsed?

I finally found my own answer, just posting it here if by any chance anybody in the future is interested. The code that

2020-04-17 15:03:56 -0500 edited answer Where is element <gazebo> in the source code parsed?

I finally found my own answer, just posting it here if by any chance anybody in the future is interested. The code that

2020-04-08 11:00:41 -0500 commented question Where is element <gazebo> in the source code parsed?

not a full answer, but you might check the SDFormat code, or possible the gazebo_ros_pkgs code

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2020-01-15 13:41:29 -0500 marked best answer How to rebuild ign-msgs for gazebo9?

I've install gazebo9 on a Bionic machine which has more up to date versions of protobuf than gazebo is expecting. Specifically, the apt package for ign-msgs1 was compiled with something before protobuf 3. So naturally, I'm trying to rebuild ign-msgs1 so that it will be up to date. However, this fails because there are macros in ign-msgs1 Utils.cmake which are defined by ign-cmake0 in IgnUtils.cmake. This conflict makes it impossible to rebuild ign-msgs1 on Bionic.

I can't upgrade from ign-msgs1 without recompiling everything else, so I'm wondering if there's a way to make ign-msgs use its own macros instead of getting them stomped on by ign-cmake0

2020-01-15 13:41:13 -0500 edited answer How to rebuild ign-msgs for gazebo9?

The solution here was to build protobuf 3.0.0 from source. The ubuntu package installed 3.8.0 because I was using a Lamb

2020-01-15 13:38:15 -0500 received badge  Popular Question (source)
2020-01-15 13:30:09 -0500 edited answer How to rebuild ign-msgs for gazebo9?

The solution here was to build protobuf 3.0.0 from source. The ubuntu package installed 3.8.0, which is incorrect since

2020-01-15 13:29:41 -0500 answered a question How to rebuild ign-msgs for gazebo9?

The solution here we to build protobuf 3.0.0 from source. The ubuntu package installed 3.8.0, which is incorrect since i

2020-01-15 13:03:44 -0500 commented answer How to rebuild ign-msgs for gazebo9?

The failing check is 3000000 < GOOGLE_PROTOBUF_MIN_PROTOC_VERSION so it would seem that the ign-msgs1 headers were ge

2020-01-15 13:01:38 -0500 commented answer How to rebuild ign-msgs for gazebo9?

I just noticed that and I'm confused -- if gazebo uses libprotobuf3, why am I getting compiler errors: /usr/include/igni

2020-01-15 12:18:58 -0500 commented answer How to rebuild ign-msgs for gazebo9?

Do you have any experience with proto2 being installed alongside proto3? I'm not sure it would work nicely because they

2020-01-14 11:12:21 -0500 asked a question How to rebuild ign-msgs for gazebo9?

How to rebuild ign-msgs for gazebo9? I've install gazebo9 on a Bionic machine which has more up to date versions of prot

2019-10-11 09:47:40 -0500 answered a question Contact Sensor doesn't work in Gazebo 9

The collision the bump sensor is checking for is state to be sensor_collision, but I don't see that collision anywhere.

2019-08-27 12:51:37 -0500 edited answer Simple model always becomes unstable

Your model is stable if I increase the number of solver iterations from 50 to 100, although I'm not sure why it's unstab

2019-08-27 12:51:03 -0500 answered a question Simple model always becomes unstable

Your model is stable if I increase the number of solver iterations from 50 to 100, although I'm not sure why it's unstab

2019-08-26 08:46:06 -0500 commented question What have been people's experience with bullet in Gazebo? Are soft-body and deformable objects supported?

I did not, I would recommend using NVIDIA Flex.

2019-07-28 19:25:34 -0500 answered a question My model does not going straight

This may not solve your problem, but either way you should definitely specify mass and inertial properties. Otherwise yo