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2021-10-08 22:34:43 -0600 received badge  Notable Question (source)
2021-08-10 05:24:53 -0600 commented question How does the population element work in SDFormat?

Number 2: This is in fact a bug in the current spec. The source code specifies that only a single model is permitted. Se

2021-08-09 14:49:19 -0600 edited question How does the population element work in SDFormat?

How does the population element work in SDFormat? Looking at the SDFormat spec for v1.8, there is the /world/population

2021-08-09 14:31:55 -0600 edited question How does the population element work in SDFormat?

How does the population element work? Looking at the SDFormat spec for v1.8, there is the /world/population element. I'm

2021-08-09 14:31:36 -0600 asked a question How does the population element work in SDFormat?

How does the population element work? Looking at the SDFormat spec for v1.8, there is the /world/population element. I'm

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2021-03-30 01:50:32 -0600 received badge  Popular Question (source)
2021-03-24 08:17:45 -0600 edited answer How to get the camera matrix of a camera sensor in Ignition Gazebo

It is indeed possible to get the camera matrix from the /camera_info topic. It also directly provides a projection matri

2021-03-20 01:21:10 -0600 commented answer How to get the camera matrix of a camera sensor in Ignition Gazebo

@AndrejOrsula Thanks! I would upvote your comment because it is really useful; unfortunately, it requires 3 rep to do so

2021-03-19 14:53:33 -0600 received badge  Famous Question (source)
2021-03-19 14:34:19 -0600 commented question SDF model not loading properly in ignition gazebo

Strange Meshes can often be traced back to a locale problem, i.e., the machine using commas instead of dots to represent

2021-03-19 14:34:11 -0600 commented question SDF model not loading properly in ignition gazebo

Strange Meshes can often be traced back to a locale problem, i.e., the machine using commas instead of dots to represent

2021-03-19 10:22:22 -0600 edited answer How to get the camera matrix of a camera sensor in Ignition Gazebo

It is indeed possible to get the camera matrix from the /camera_info topic. It also directly provides a projection matri

2021-03-19 10:00:01 -0600 marked best answer How to get the camera matrix of a camera sensor in Ignition Gazebo

I have a world in Ignition Gazebo that contains a camera and a robot arm (panda). The camera has the robot in view. I would like to compute the pixel position of the robot's end-effector within the recorded camera image.

What I would like to know is how/where to find the camera matrix (and information about distortion if applicable) so that I can compute the projection.

I can find the projected position of the end-effector in the camera's frame of reference, but to convert the location into pixels I need the camera's intrinsic parameters. I thought they would be published on the /camera_info topic, but the simulator doesn't appear to publish any messages on this topic. My next thought was to check the camera sensor's source code, but I can't seem to figure out where it is located.

Any pointers where to find this information are highly appreciated :)

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2021-03-19 09:59:55 -0600 answered a question How to get the camera matrix of a camera sensor in Ignition Gazebo

It is indeed possible to get the camera matrix from the /camera_info topic. It also directly provides a projection matri

2021-03-18 16:01:07 -0600 commented answer How to get the camera matrix of a camera sensor in Ignition Gazebo

Sounds a bit like a bug that has been fixed on master, but didn't propagate to the package archive yet. I've noticed thi

2021-03-18 13:46:05 -0600 received badge  Notable Question (source)
2021-03-18 10:50:44 -0600 commented answer How to get the camera matrix of a camera sensor in Ignition Gazebo

Thanks for the reply! Unfortunately, I have a blank output when I run the two lines you mentioned, i.e., echo is waiting

2021-03-18 04:10:28 -0600 received badge  Popular Question (source)
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2021-03-17 10:46:45 -0600 edited question How to get the camera matrix of a camera sensor in Ignition Gazebo

Ignition Gazebo get the Camera Matrix (or how to find an object's position in pixels for a camera sensor) I have a world

2021-03-17 10:45:17 -0600 asked a question How to get the camera matrix of a camera sensor in Ignition Gazebo

Ignition Gazebo get the Camera Matrix (or how to find an object's position in pixels for a camera sensor) I have a world

2021-03-12 07:31:26 -0600 received badge  Enthusiast
2021-03-08 19:09:08 -0600 asked a question How to listen to ign-transport messages?

How to listen to ign-transport messages? I'm trying to work out how different parts of Ignition Gazebo (Dome) communicat