On 3 June 2010 14:34, Jerome Duriez <[email protected]> wrote:
> Hello, > > I want to use the engine "StepDisplacer", through Python. Normally it needs > one "se3" and one boolean as argument. I got that se3 does not exist in > python but should be used as a tuple of elements (the components, with a > nice trick for the ones of the quaternion...) But in fact it seems that I > did not understand all, because I get an error at the definition of this > Engine : > > Yade [6]: > a=StepDisplacer([DPos[0],DPos[1],DPos[2],qId[3],qId[0],qId[1],qId[2]],'true') > --------------------------------------------------------------------------- > RuntimeError Traceback (most recent call last) > > /home/3S-LAB/jduriez/YADE/lib/yade-trunk-classic/py/yade/__init__.pyc in > <module>() > ----> 1 > 2 > 3 > 4 > 5 > > RuntimeError: Zero or one (and not more) non-keyword string argument > required > > I tried with a "real" se3 to be sure that it is not my syntax of se3 in > python which is to blame. No more success : > Yade [15]: s1=O.bodies[1] > Yade [16]: se3Issu=s1.state.se3 > Yade [17]: StepDisplacer(se3Issu,'true') > --------------------------------------------------------------------------- > RuntimeError Traceback (most recent call last) > > /home/3S-LAB/jduriez/YADE/lib/yade-trunk-classic/py/yade/__init__.pyc in > <module>() > ----> 1 > 2 > 3 > 4 > 5 > > RuntimeError: Zero or one (and not more) non-keyword string argument > required > > > Has someone any idea ? Thanks a lot, > > Jerome > Hi Jerome, I was using StepDisplacer and I was using in python the following notation: StepDisplacer(subscribedBodies=[1],delta=(Vector3(-1e-6,0,0),Quaternion().IDENTITY),setVelocities=True) Have you tried this way? Is that what you need? cheers, Chiara > > _______________________________________________ > Mailing list: > https://launchpad.net/~yade-users<https://launchpad.net/%7Eyade-users> > Post to : [email protected] > Unsubscribe : > https://launchpad.net/~yade-users<https://launchpad.net/%7Eyade-users> > More help : https://help.launchpad.net/ListHelp >
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