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None Re: Restrictions on G4PVReplica and parameterised volumes 

Keywords: replicas, parameterised
Forum: Geometry
Re: None Restrictions on G4PVReplica and parameterised volumes (Ben Morgan)
Re: More Re: Restrictions on G4PVReplica and parameterised volumes (Gabriele Cosmo)
Date: 14 Dec, 2006
From: Ben Morgan <Ben Morgan>

Hi Gabriele,

Thank you for the information. I think I was a little careless with terminology here:

>> I presume that 'Replica' in these statements refers to the logical volume that will be
>> replicated inside the mother logical volume? If so, then am I correct in thinking that the
>> logical volume which will be replicated inside the mother

>I have the impression you may have 'confused' concepts of what is a 'logical' volume and
>a 'physical' volume. I would suggest you to look at the documentation where such concepts,
>I think, are well defined.

What I meant was that G4PVReplica is constructed through

G4PVReplica(const G4String& pName,
                  G4LogicalVolume* pCurrentLogical,
                  G4LogicalVolume* pMotherLogical,
            ...)

so the logical volume 'pCurrentLogical' is what is placed(positioned) as the (single) physical volume representing the N replicas inside the 'pMotherLogical' logical volume. As it says in the manual, the position/rotation of the 'active' replica is determined during tracking from the number of replicas, replica width and axis of replication.

Therefore, I thought that the statement about 'placements inside replicas' refered to physical volumes positioned inside 'pCurrentLogical' - i.e. the daughter physical volumes of a LV positioned as a G4PVReplica. Assuming that's the case, it was restrictions on how these daughter physical volumes of 'pCurrentLogical' may be placed that I was a little unsure about, i.e

1) 'pCurrentLogical' could be the mother for a daughter G4PVReplica?

2) 'pCurrentLogical' could be the mother for daughter G4PVPlacements (think that's obvious from your reply!).

3) 'pCurrentLogical' could be the mother for a daughter G4PVParameterised?

Apologies for the confusion...

Ben.

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