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Forum: Geometry
Re: Sad How to check the overlapping surfaces between the daughters of two mother volumes in geant4 (Davinder Siwal)
Date: 18 Feb, 2014
From: Gabriele Cosmo <Gabriele Cosmo>

Hi Davinder,

I'm not sure to understand what exactly you're trying to do, but, in
any case, you can only check for overlaps within the -same- tree of
placed volumes, being them either parameterised or placements.
You cannot mix parametrised and placed volumes in the same level.

Cheers, Gabriele

----------
On Thu, 30 Jan 2014 10:53:35 GMT, Davinder Siwal wrote:
> Dear Geant4 Users and experts
> 
> I am trying to build an array having different rings in Geant4, each of
> the ring have different number of detector elements. So I have defined
> some of the rings without using parametrised volumes (having
> experimental hall as a mother volume) but after a certain ring number I
> started to use parametrised volume. As the parametrised volume uses the
> mother volume which do no have the daughters so I defined a separate
> mother volume for that having same position co-ordinate and dimensions
> as that of the experimental hall. My question is how do I check the
> overlapping between the surfaces of the daughter volumes of the two
> mother volumes.
> 
> Assistance from the experts would greatly be appreciated !!!!
> 

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