No, that's the weird fact, it doesn't change at all when I'm varying different parameters like mass, friction etc.
What do you mean with "off the trunk"? I attached the piece of code for moving the rods: http://80.56.19.206/files/movingrodscode.txt More and more, I start to think that my Gazebo isn't set-up properly. First on 0.10, I got strange behavior when using the act-array interface. I couldn't event rotate a single hinge. Now, on 0.9, other thinks occur which aren't really explainable. Is there a way to check if your Gazebo is set up properly? Thanks again for helping me! Rein On Thu, Jun 16, 2011 at 10:42 AM, John Hsu <john...@willowgarage.com> wrote: > Hi Rein, > does the strange behavior change at all when you increase/decrease mass of > the walls? > Have you tried off the trunk to see if this problem still exists? > lastly, can you attach the code you used to move the rods too? > thanks, > John > > On Thu, Jun 16, 2011 at 1:08 AM, Rein Appeldoorn <rein...@gmail.com> > wrote: > > > I'm using Gazebo version 0.9. This is because I had a problem with > > actuating > > the hinges via the generic-actarray in Gazebo version 0.10. Therefore, > I'm > > using version 0.9 now. > > > > I'm not using a wall mesh; the wall consist of multiple box geometries. > > > > The movement of the table, what you saw in the movie, happens when > rotating > > the rod. This is weird because the static part of the table (walls) have > > the > > following parameters: > > > > <mu1>0.3</mu1> > > <mu2>0.3</mu2> > > <mass>1e5</mass> > > > > I've added my ODEPhysics.cc and my .world-files: > > http://80.56.19.206/files/ODEPhysics.cc > > http://80.56.19.206/files/simulation_010.world (Gazebo 0.10) > > http://80.56.19.206/files/simulation_090.world (Gazebo 0.09) > > > > Thanks for responding! > > > > Rein > > > > On Thu, Jun 16, 2011 at 9:45 AM, John Hsu <john...@willowgarage.com> > > wrote: > > > > > ah, sorry, I just went back to see the video again, and apparently I > saw > > > the > > > wrong video earlier! > > > > > > Ok, the bouncing table problem is most likely a problem with max > contacts > > > specified. I've seen this when max contacts is set too low for the > mesh > > > involved. What version of gazebo are you running? can you attach or > > point > > > me to ODEPhysics.cc? > > > > > > One way to fix this (not the best way) is, try putting a small box > block > > > under each corner of your "wall" mesh. > > > > > > John > > > > > > On Wed, Jun 15, 2011 at 2:50 AM, Rein Appeldoorn <rein...@gmail.com> > > > wrote: > > > > > > > I checked my gazebo settings in /server/physics/ode/ODEPhysics.cc and > > > they > > > > were as follows: > > > > > > > > contact.surface.mode = dContactSlip1 | dContactSlip2 | > > > > dContactSoftERP | dContactSoftCFM | > > > > dContactBounce | dContactMu2 | > > > > dContactApprox1; > > > > > > > > So this can't be the problem in my opinion. The parameters for the > > > > geometries of the table are as follows: > > > > > > > > <mu1>0.3</mu1> > > > > <mu2>0.3</mu2> > > > > <mass>1e5</mass> > > > > > > > > Any idea what we are doing wrong? > > > > > > > > Thanks, > > > > > > > > Rein > > > > > > > > > > > > On Fri, Jun 10, 2011 at 1:08 PM, Rein Appeldoorn <rein...@gmail.com> > > > > wrote: > > > > > > > > > John, > > > > > > > > > > Thanks for your reply. > > > > > > > > > > What do you mean with the friction coefficients of the "wheels"? > > > > > And how do I check my Gazebo-settings if they are right? > > > > > > > > > > Regards, > > > > > > > > > > Rein > > > > > > > > > > > > > > > On Thu, Jun 9, 2011 at 8:01 PM, John Hsu <john...@willowgarage.com > > > > > > wrote: > > > > > > > > > >> Hi Rein, > > > > >> Not sure if this will help, but have you tried reducing the > friction > > > > >> coefficients of the wheels <mu1> and <mu2> to something less than > 1? > > > > >> also, make sure that in the version of gazebo you are running, > > > > >> contact.surface mode has "dContactApprox1" in it. > > > > >> > > > > >> contact.surface.mode = dContactSoftERP | dContactSoftCFM | > > > > >> dContactApprox1 | dContactMu2; > > > > >> > > > > >> John > > > > >> > > > > >> On Thu, Jun 9, 2011 at 5:51 AM, Rein Appeldoorn < > rein...@gmail.com> > > > > >> wrote: > > > > >> > > > > >> > Code: > http://www.student.tue.nl/W/r.p.w.appeldoorn/simulation.txt > > > > >> > <http://www.student.tue.nl/W/r.p.w.appeldoorn/simulation.world> > > > > >> > > > > > >> > On Thu, Jun 9, 2011 at 2:43 PM, Rein Appeldoorn < > > rein...@gmail.com> > > > > >> wrote: > > > > >> > > > > > >> > > Hi all, > > > > >> > > > > > > >> > > We are working on a simulation model of an autonomous football > > > > table. > > > > >> We > > > > >> > > already build our model but we're struggling with the realism. > > We > > > > >> solved > > > > >> > a > > > > >> > > lot of problems but to this one, we can't find an answer to. > > Here > > > is > > > > a > > > > >> > movie > > > > >> > > of the weird/unrealistic behavior: > > > > >> > > > > > > >> > > Movie: > > > > >> > > > http://www.student.tue.nl/W/r.p.w.appeldoorn/gazebo_tablesoccer.avi > > > > >> > > > > > > >> > > Has someone perhaps experienced similar problems or perhaps > does > > > > >> someone > > > > >> > > want to take a look at our code because we're probably making > > > > trivial > > > > >> > > mistakes. > > > > >> > > > > > > >> > > Code: > > > http://www.student.tue.nl/W/r.p.w.appeldoorn/simulation.world > > > > >> > > > > > > >> > > Thanks in advance, > > > > >> > > > > > > >> > > Rein > > > > >> > > > > > > >> > > > > > >> > > > > > >> > > > > > > > > > > ------------------------------------------------------------------------------ > > > > >> > EditLive Enterprise is the world's most technically advanced > > content > > > > >> > authoring tool. Experience the power of Track Changes, Inline > > Image > > > > >> > Editing and ensure content is compliant with Accessibility > > Checking. > > > > >> > http://p.sf.net/sfu/ephox-dev2dev > > > > >> > _______________________________________________ > > > > >> > Playerstage-gazebo mailing list > > > > >> > Playerstage-gazebo@lists.sourceforge.net > > > > >> > https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo > > > > >> > > > > > >> > > > > >> > > > > >> > > > > >> -- > > > > >> John Hsu, Ph.D. > > > > >> Senior Research Engineer > > > > >> Willow Garage Inc. > > > > >> +1-650-475-2809 > > > > >> > > > > >> > > > > > > > > > > ------------------------------------------------------------------------------ > > > > >> EditLive Enterprise is the world's most technically advanced > content > > > > >> authoring tool. Experience the power of Track Changes, Inline > Image > > > > >> Editing and ensure content is compliant with Accessibility > Checking. > > > > >> http://p.sf.net/sfu/ephox-dev2dev > > > > >> _______________________________________________ > > > > >> Playerstage-gazebo mailing list > > > > >> Playerstage-gazebo@lists.sourceforge.net > > > > >> https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------------ > > > > EditLive Enterprise is the world's most technically advanced content > > > > authoring tool. Experience the power of Track Changes, Inline Image > > > > Editing and ensure content is compliant with Accessibility Checking. > > > > http://p.sf.net/sfu/ephox-dev2dev > > > > _______________________________________________ > > > > Playerstage-gazebo mailing list > > > > Playerstage-gazebo@lists.sourceforge.net > > > > https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo > > > > > > > > > > > > > > > > -- > > > John Hsu, Ph.D. > > > Senior Research Engineer > > > Willow Garage Inc. > > > +1-650-475-2809 > > > > > > > > > ------------------------------------------------------------------------------ > > > EditLive Enterprise is the world's most technically advanced content > > > authoring tool. Experience the power of Track Changes, Inline Image > > > Editing and ensure content is compliant with Accessibility Checking. > > > http://p.sf.net/sfu/ephox-dev2dev > > > _______________________________________________ > > > Playerstage-gazebo mailing list > > > Playerstage-gazebo@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo > > > > > > > > ------------------------------------------------------------------------------ > > EditLive Enterprise is the world's most technically advanced content > > authoring tool. Experience the power of Track Changes, Inline Image > > Editing and ensure content is compliant with Accessibility Checking. > > http://p.sf.net/sfu/ephox-dev2dev > > _______________________________________________ > > Playerstage-gazebo mailing list > > Playerstage-gazebo@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo > > > > > > -- > John Hsu, Ph.D. > Senior Research Engineer > Willow Garage Inc. > +1-650-475-2809 > > ------------------------------------------------------------------------------ > EditLive Enterprise is the world's most technically advanced content > authoring tool. Experience the power of Track Changes, Inline Image > Editing and ensure content is compliant with Accessibility Checking. > http://p.sf.net/sfu/ephox-dev2dev > _______________________________________________ > Playerstage-gazebo mailing list > Playerstage-gazebo@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo > ------------------------------------------------------------------------------ EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev _______________________________________________ Playerstage-gazebo mailing list Playerstage-gazebo@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/playerstage-gazebo
