ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange

Attention: Answers.ros.org is deprecated as of August the 11th, 2023. Please visit robotics.stackexchange.com to ask a new question. This site will remain online in read-only mode during the transition and into the foreseeable future. Selected questions and answers have been migrated, and redirects have been put in place to direct users to the corresponding questions on Robotics Stack Exchange. Additional details are available here.

0

How to draw circles with RVIZ markers?

asked 2019-06-18 10:28:17 -0600

264 ●34 ●40 ●43

updated 2019-06-18 13:00:14 -0600

PeteBlackerThe3rd

flag of United Kingdom of Great Britain and Northern Ireland

9529 ●30 ●143 ●135 https://www.linkedin.c...

Hello all,

I would like to indicate a special zone around an object (for instance a cube) in RVIZ by a marker. I have looked at the basic_marker tutorial and it is possible to creat this zone by a LINE_STRIP. But I was wondering if we can create a one like the Interactive Markers. I have looked the documents and I did not find that the circle around the object like the one on ChessPiece is configurable.

Do you have any idea how to do it correctly?

Thanks,

edit retag flag offensive close merge delete

Comments

Assuming you just want the circle to look the same as the one used by the interactive markers then you can reproduce it using a triangle list marker and setting the alpha transparency of the whole marker to around 50%.

PeteBlackerThe3rd ( 2019-06-18 10:37:41 -0600 )edit

There are marker types for CUBE, SPHERE and CYLINDER. Would those be sufficient for what you're trying to do?

A circle can be made from a really flat cylinder.

or does it need to be an 'open' circle (ie: not a filled one)?

gvdhoorn ( 2019-06-18 10:43:57 -0600 )edit

thanks for your comment @gvdhoorn, I found exactly the CYLINDER shape marker as the easiest solution.

Mobile_robot ( 2019-06-19 01:55:42 -0600 )edit

@PeteBlackerThe3rd thanks for your comment.

Mobile_robot ( 2019-06-19 01:56:37 -0600 )edit

1 Answer

Sort by » oldest newest most voted

1

answered 2019-06-19 01:54:39 -0600

264 ●34 ●40 ●43

As I understood, based on your application and your requirement there exist different solutions. For my case as @gvdhoorn mentioned it can be solved by a CYLINDER shape marker.

edit flag offensive delete link

Question Tools

1 follower

Stats

Asked: 2019-06-18 10:28:17 -0600

Seen: 2,521 times

Last updated: Jun 19 '19

Related questions

ROS Answers is licensed under Creative Commons Attribution 3.0 Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.

Powered by Askbot version 0.10.2