clock model not displayed in gazebo

clock
gazebo

asked 2012-03-14 01:13:18 -0600

339 ●22 ●25 ●35 http://everythingislog...

Hi everyone,

I was going through gazebo tutorial at : http://ros.org/wiki/simulator_gazebo/Tutorials , when I launch empty world I didn't see clock model, only gplane and point_white is being shown. I am not able to control the speed of simulation.

Launch file empty_world.launch has line.

Am I missing something. What is needed to be done to bring the clock model and control the speed of simulation.

Thanks in advance

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Are you referring to the "use_sim_time" parameter? What clock model are you referring to?

DimitriProsser ( 2012-03-14 03:30:33 -0600 )edit

As in the tutorial : http://ros.org/wiki/simulator_gazebo/Tutorials/StartingGazebo In the figure that is displayed (on the page), I can see on top left, under model:- clock, gplane, & point_white but whne I run 'roslaunch gazebo_worlds empty_world.launch' I only see gplane point_white & no clock

aknirala ( 2012-03-14 07:33:22 -0600 )edit

hi hsu, by cont speed of sim' I mean, for eg, 1. I launched an empty gazebo world. 2. Span an empty cup 3. Applied a body wrench (as in http://ros.org/wiki/simulator_gazebo/Tutorials/Gazebo_ROS_API pt 9) Now, can I control the sim clock so that I see rotation faster or slower?

aknirala ( 2012-03-29 08:16:34 -0600 )edit

aknirala ( 2012-03-29 08:16:35 -0600 )edit

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answered 2012-03-22 15:41:12 -0600

hsu
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If you are talking about the "clock model" in diamondback, as of electric, the "clock model" has been removed from the world file. The gazebo binary built from gazeboros.cpp contains a publisher for /clock and various services such as the model factory for spawning models. In fuerte, the model is slightly shifted as all ros related topics/services are now available there through system plugins, invoked by loading them with the -p option when starting up gazebo.

In terms of "controlling the speed of simulation", can you explain in more detail what you mean by it? Thanks.

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