From: Hwai L. K. <hwa...@ya...> - 2003-09-02 12:06:52
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Hi; I am new to this simulator and I am particularly interested to know what is the maximum number of mobile robots (at one simulation instant) that can be supported on Stage and Gazebo? This is important as I may require a large colony of robots for my research. Besides, can someone tell me what are the differences between Gazebo and commercial software Webots? I hope someone can help me in this. Thanks in advance. HL __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com |
From: Nate K. <nk...@us...> - 2003-09-02 15:51:38
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Hello Hwai, There is no set maximum number of mobile robots for either Stage or Gazebo. This is more a function of how much processing power you can afford. Stage has a much greater capacity in this respect since it operates in a 2D world without a dynamics engine. However, if your colony is around 10-15, gazebo *might* be able to handle it. Gazebo will perform better if lasers are not used (a lot less collision detection occurring). Since both Stage and Gazebo are easy to use, it doesn't hurt just to try both out. Webots has a lot of the features Gazebo will have in the near future, such as real time user interaction and more sensors and robots. Some key differences are: Gazebo is open source, free customer support, easy model creation (you can make your own robots, sensors, actuators), and most importantly its Player compatible. Hope that helps, -nate On Tue, 2003-09-02 at 05:06, Hwai Lin Khor wrote: > Hi; > > I am new to this simulator and I am particularly > interested to know what is the maximum number of > mobile robots (at one simulation instant) that can be > supported on Stage and Gazebo? This is important as I > may require a large colony of robots for my research. > Besides, can someone tell me what are the differences > between Gazebo and commercial software Webots? > > I hope someone can help me in this. Thanks in advance. > > HL > > __________________________________ > Do you Yahoo!? > Yahoo! SiteBuilder - Free, easy-to-use web site design software > http://sitebuilder.yahoo.com > > > ------------------------------------------------------- > This sf.net email is sponsored by:ThinkGeek > Welcome to geek heaven. > http://thinkgeek.com/sf > _______________________________________________ > Playerstage-users mailing list > Pla...@li... > https://lists.sourceforge.net/lists/listinfo/playerstage-users |
From: Richard V. <va...@hr...> - 2003-09-02 16:12:30
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Hi Hwai Lin, Stage is a low-fidelity simulator designed to support large populations. In theory you could simulate many thousands of robots. In practice you'll find that your choice of sensor determines how many robots you can run in a reasonable amount of time. Laser and blobfinder sensors are computationally intensive, so you'll find you can only run 10-20 of these in real time. You may well be able to get around 200 sonar-based robots in real time. Adding more models will slow Stage down below real-time, but things will still work OK. Gazebo models dynamics in 3D and is much more realistic than Stage, at the cost of a lot more computation. You should expect to run < 10 robots on Gazebo right now. Both Stage and Gazebo are developing rapidly. These numbers are based on the current releases. CVS versions may be quite different. Stage has been largely re-written since the last release and I haven't experimented with population size yet. Check Webot's site for info. Webots looks great, but you can't adapt it yourself, it costs money and does not (yet) support Player. Richard. On Tue, 2 Sep 2003, Hwai Lin Khor wrote: > Hi; > > I am new to this simulator and I am particularly > interested to know what is the maximum number of > mobile robots (at one simulation instant) that can be > supported on Stage and Gazebo? This is important as I > may require a large colony of robots for my research. > Besides, can someone tell me what are the differences > between Gazebo and commercial software Webots? > > I hope someone can help me in this. Thanks in advance. > > HL > > __________________________________ > Do you Yahoo!? > Yahoo! SiteBuilder - Free, easy-to-use web site design software > http://sitebuilder.yahoo.com > > > ------------------------------------------------------- > This sf.net email is sponsored by:ThinkGeek > Welcome to geek heaven. > http://thinkgeek.com/sf > _______________________________________________ > Playerstage-users mailing list > Pla...@li... > https://lists.sourceforge.net/lists/listinfo/playerstage-users > -- Richard Vaughan / HRL Laboratories / va...@hr... / +1 310.317.5689 |