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[Jan Stránský <question661471@xxxxxxxxxxxxxxxxxxxxx>]

Question #661471 on Yade changed:
https://answers.launchpad.net/yade/+question/661471

    Status: Open => Answered

Jan Stránský proposed the following answer:
Hi George

> is there the possibility to find a particle id given its position
efficiently?

###
reqPos = Vector3(1,1,1)
for b in O.bodies:
   if isinstance(b.shape,Sphere):
       if b.state.pos == reqPos: # here
           print b.id,b.state.pos[0],b.state.pos[1],b.state.pos[2]
###
could help a bit.
Rewriting the code to C++ will also decrease the needed time.

> is it possible to access the particle position knowing only the
particle id?

O.bodies[id].state.pos
O.bodies[id].whatever # for not only position

cheers
Jan

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