I tried this, but it didn't work. With a constant turning speed (that should propably result in a more or less constant angular velocity) I get values from -2 over 0 to 2. In my opinion angular velocity is, how much the angle on a specific axis changes in time. So the vaules should raise and then, stay constant. The values I get are sinus-like.
Jonas - -----Ursprüngliche Nachricht----- Von: Gazebo developers <[email protected]> Betreff: Re: [PlayerStage-Gazebo] Simulate gyroscope in gazebo Hello, There is a function in gazebo's quaternion class to convert to Euler angles. It might be easier to work with. -nate On 10/29/07, Jonas Lanvers <[EMAIL PROTECTED]> wrote: > Hello again :-) > My quaternion to angle conversion seemed to be completely wrong. > Does anybody know how to convert the Quaternion from Body->GetAngularVel() to > degrees / second? > I tried a lot of formulas, but they all don't work. The output becomes > smaller and bigger although I run it with a constant rotation speed. > So the angular velocity also has to be more or less constant, doesn't it? > > Thanks in advance > > Jonas > -----Ursprüngliche Nachricht----- > Von: Gazebo developers <[email protected]> > Gesendet: 23.10.07 19:46:05 > An: "Gazebo developers" <[email protected]> > Betreff: Re: [PlayerStage-Gazebo] Simulate gyroscope in gazebo > > > Yeah, the drift does seem to be a problem. Are there any mathematical > models for drift, or simple ways to estimate it? If all else fails, > maybe adding a little gaussian noise will do the trick. However, take > that with a grain of salt, I'm no expert on gyroscopes. > > -nate > > On 10/23/07, Jonas Lanvers <[EMAIL PROTECTED]> wrote: > > Hi, > > > > The object does not have to spin. I only need orientation and drift. > > Orientation seems to be no problem, I got this by converting the Global > > Pose Quaternion. > > But drift seems to be a problem, doesn't it? > > > > Jonas > > > > -----Ursprüngliche Nachricht----- > > Von: Gazebo developers <[email protected]> > > Gesendet: 22.10.07 23:59:05 > > > > > > A gyroscope might be possible. Do you want an actively spinning > > object, or just a sensor that measures/maintains orientation? > > > > -nate > > > > On 10/18/07, Jonas Lanvers <[EMAIL PROTECTED]> wrote: > > > Is there any way (or better a plugin ) to simulate a gyroscope in gazebo? > > > > > > Jonas _____________________________________________________________________ Der WEB.DE SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! http://smartsurfer.web.de/?mc=100071&distributionid=000000000066 ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Playerstage-gazebo mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo
