yade-users team mailing list archive

[Jerome Duriez <jerome.duriez@xxxxxxxxxxxxxxx>]

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