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2018-08-14 12:07:55 -0500 answered a question What does multi_step in world_control.proto do?

If you're using a world plugin, OnUpdate is called at every iteration within the physics thread. So I think what's happe

2018-08-13 10:38:36 -0500 commented answer How to edit a pre-existing model in Gazebo

Strange, maybe the menu is leaking out of the screen? You listed the 3 last options, but there are 5 more above those, o

2018-08-07 11:17:37 -0500 commented question Gazebo not updating visual position in gzclient

Is the model selected in the GUI at the moment you send the command? Try making sure the model is not selected and see i

2018-08-06 12:41:58 -0500 commented answer Measure distance between 2 points in GUI?

Which means the core dev team is not working on it, but we could accept it as an external contribution ;)

2018-08-06 12:41:47 -0500 commented answer Measure distance between 2 points in GUI?

Which meas the core dev team is not working on it, but we could accept it as an external contribution ;)

2018-08-06 12:40:38 -0500 commented answer Measure distance between 2 points in GUI?

Not on the roadmap for Gazebo 10, but an alternative version may be there at Gazebo 11.

2018-08-06 11:54:00 -0500 answered a question Clouds from screen is not visible in camera image

This is a known issue, you can vote for it and it would be great if you could dig to figure out what exactly is the prob

2018-07-30 16:35:08 -0500 commented answer Actors not seen by LIDAR sensors

You could try using this plugin which adds collisions to the actor, but the sensor will see boxes instead of the actor's

2018-07-30 12:15:56 -0500 commented answer Actors not seen by LIDAR sensors

Yes, you'll need a computer with a good GPU. The non-gpu ray plugin will not be able to see the actors because they work

2018-07-27 10:48:57 -0500 answered a question Gazebo recognize collision and show in rqt

A contact sensor may be a good start, see this tutorial.

2018-07-25 11:30:02 -0500 received badge  Nice Answer (source)
2018-07-24 14:31:51 -0500 answered a question How can I check if a commit has been updated to my Gazebo?

You can find the instructions to install Gazebo from source here. In your case, since you want to use a custom branch, t

2018-07-23 21:57:55 -0500 answered a question Cannot Scale/resize simple objects with GUI mouse controls.

Here's a pull request fixing it. Once that's approved and merged, it will be in the next patch release.

2018-07-23 11:08:56 -0500 commented answer Can we fix the robot base to the world about a given axis?

You'll have to see exactly which motion you want to allow and constrain all other axes with a combination of prismatic a

2018-07-22 23:53:19 -0500 answered a question Model Editor Scale Handles don't seem to work

Looks like a duplicate of http://answers.gazebosim.org/question/19477/cannot-scaleresize-simple-objects-with-gui-mouse-c

2018-07-20 15:04:28 -0500 answered a question Can we fix the robot base to the world about a given axis?

Yup, just change the joint type to continuous and give it an <axis>. See the URDF documentation here.

2018-07-20 11:44:45 -0500 edited answer Why is there a difference between functions of Link Class Reference and gazebo::physics::Link Class Reference ?

As detailed on the Migration guide From Gazebo 7 to Gazebo 8, function inline virtual const math::Pose Entity::GetWorld

2018-07-20 11:43:01 -0500 answered a question Why is there a difference between functions of Link Class Reference and gazebo::physics::Link Class Reference ?

As detailed on the Migration guide From Gazebo 7 to Gazebo 8, function gazebo::math::Pose worldPose was replaced with

2018-07-17 11:16:00 -0500 answered a question Actors not seen by LIDAR sensors

Try changing <sensor type="ray" to <sensor type="gpu_ray"

2018-07-17 11:12:27 -0500 commented question Pan is not working in dbw_mkz_simulator

I see their tutorial mentions Gazebo 2.4, which hasn't been supported for a long time. If that's the version you're usin

2018-07-03 10:48:15 -0500 answered a question Scale tool in Gazebo not working

Sounds like the same issue as this question. There's also an issue on the repo.

2018-06-28 12:14:45 -0500 commented answer "Fake" collision that can be detected by RaySensor but doesnt collide with other models?

It may make a difference for the GPU sensor, not for the CPU one.

2018-06-28 12:05:25 -0500 commented question How to play custom log files?

A minimum world + models which allows reproducing the problem would be helpful.

2018-06-27 11:05:23 -0500 commented question I am trying to write my own plugin, which has its own header file. For its compilation, I am following Plugins 101 tutorials. When I run make command in terminal in build folder, it says "fatal error: myproject.hh: No such file or directory compilation terminated". How to solve this problem ?

What's the include line in myproject.cc?

2018-06-25 11:17:38 -0500 commented answer Tips for implementing an existing codebase in Gazebo?

You'll probably need to compile the plugin linking and including both Gazebo and your code...

2018-06-25 11:01:37 -0500 answered a question "Fake" collision that can be detected by RaySensor but doesnt collide with other models?

If you use a GPU ray sensor, you can remove collisions from your particles, because the sensor only detects the visuals.

2018-06-25 08:12:57 -0500 received badge  Nice Answer (source)
2018-06-22 10:36:22 -0500 commented answer How to get msgs::LogicalCameraImage timestamp?

Oh strange, it should be a public function: https://bitbucket.org/osrf/gazebo/src/cc5101392ae32616bf9bf39b6fc051104836ae

2018-06-22 10:19:11 -0500 edited answer How to get msgs::LogicalCameraImage timestamp?

That LogicalCameraImage message is not stamped (i.e. it doesn't have a header), so I think it's not possible to know the

2018-06-22 10:11:09 -0500 commented answer How to get msgs::LogicalCameraImage timestamp?

Ah sorry, you're right, I woke up too early to watch football. Updating the answer.

2018-06-22 09:47:24 -0500 edited answer How to get msgs::LogicalCameraImage timestamp?

That message is not stamped (i.e. it doesn't have a header), so I think it's not possible to know the exact time. Besid

2018-06-22 09:46:18 -0500 answered a question How to get msgs::LogicalCameraImage timestamp?

That message is not stamped (i.e. it doesn't have a header), so I think it's not possible to know the exact time. Besid

2018-06-21 12:25:53 -0500 commented question How can I uninstall and reinstall Gazebo on ubuntu 16.04 LTS?

Hi John, can you describe the problem you have after installing Gazebo?

2018-06-20 16:59:39 -0500 answered a question Parts of the Gazebo GUI wont show up

The issue seems to be with the Gazebo version, which doesn't support the model editor yet. If I remember correctly, it s

2018-06-20 12:41:03 -0500 answered a question Can I add user input parameters for a gazebo plugin?

For runtime, I think a topic as you mentioned is your best bet. Not exactly run-time, but you can expose parameters via

2018-06-19 18:00:37 -0500 commented question Parts of the Gazebo GUI wont show up

What Gazebo version are you using? Check if that matches the tutorial version on the top right corner.

2018-06-19 17:59:34 -0500 commented answer I am following sensor noise model tutorial given in gazebo tutorials for inserting IMU sensor on my robot. I am getting this warning : [Wrn] [msgs.cc:1808] Conversion of sensor type[imu] not suppported. How to get rid of this error ?

Here are some tutorials on how to contribute: http://gazebosim.org/tutorials?cat=guided_a&tut=guided_a1

2018-06-19 17:59:12 -0500 commented answer I am following sensor noise model tutorial given in gazebo tutorials for inserting IMU sensor on my robot. I am getting this warning : [Wrn] [msgs.cc:1808] Conversion of sensor type[imu] not suppported. How to get rid of this error ?

Looks like you're in luck, the conversion already exists on newer Gazebo versions. You could port it to the gazebo7 bran

2018-06-19 13:54:27 -0500 answered a question How can I change an actor's trajectory waypoints during simulation?

There are a couple of plugins on ServiceSim which change actor trajectories dynamically: FollowActorPlugin TrajectoryA

2018-06-19 12:23:17 -0500 answered a question Wait For the API calls in a world plugin

So what's happening is that Gazebo is putting your insert instructions in a queue this->dataPtr->factoryMsgs which

2018-06-19 12:16:11 -0500 answered a question Tips for implementing an existing codebase in Gazebo?

Interfacing with Gazebo can be done through C++ plugins or through the Gazebo transport system. I believe in your case y

2018-06-19 12:13:35 -0500 answered a question I am following sensor noise model tutorial given in gazebo tutorials for inserting IMU sensor on my robot. I am getting this warning : [Wrn] [msgs.cc:1808] Conversion of sensor type[imu] not suppported. How to get rid of this error ?

This warning is coming from inside Gazebo, there's no way to get rid of it, unless you contribute with a pull request im

2018-06-18 12:44:41 -0500 commented question Tips for implementing an existing codebase in Gazebo?

Can you be just a tiny bit more specific? Is the codebase in C++? What do you need from simulation?

2018-06-18 12:42:17 -0500 commented question Wait For the API calls in a world plugin

What API calls are you referring to? Usually things which don't use transport shouldn't be asynchronous.

2018-06-15 16:12:27 -0500 commented answer How to create a curved road using <road> tag from SDF version 1.6 in Gazebo?

I don't think so, you can try to increase the resolution by placing more points close to each other.

2018-06-15 16:03:33 -0500 answered a question How to create a curved road using <road> tag from SDF version 1.6 in Gazebo?

You can make it out of several small segments, for example: <road name="my_road"> <width>7.34</width

2018-06-15 11:50:30 -0500 commented answer How to adjust center of mass when going over obstacles?

I'd say similarly to how you're controlling the rest of the robot... Since you're using ROS you may want to use that her

2018-06-15 11:44:03 -0500 answered a question How to adjust center of mass when going over obstacles?

How about adding a link which holds the amount of mass you want to move, and connecting that link to the rest of the rob

2018-06-13 12:35:50 -0500 commented answer Access to the gzclient_camera in a world plugin

Thanks for pointing out the typo, it's fixed

2018-06-13 12:35:31 -0500 edited answer Access to the gzclient_camera in a world plugin

World plugins run on gzserver, which is a different process from gzclient. So you won't be able to get a pointer to the