Problem 215

Summary: MANY volumes
Product: Geant4 Reporter: ob214
Component: g3tog4Assignee: Gabriele Cosmo <Gabriele.Cosmo>
Status: RESOLVED INVALID    
Severity: normal CC: lockman
Priority: P2    
Version: other   
Hardware: PC   
OS: Linux   

Description ob214 2001-02-02 05:30:11 CET 
Can you implement MANY volumes in Geant4?
How does Geant4 treat overlapping volumes?
My guess is that Geant4 doesn't support MANY volumes
and you therefore have to make sure you don't have any
overlapping volumes (apart from boolean ones). Is that correct?
Comment 1 Gabriele Cosmo 2001-02-02 06:51:59 CET 
Given the accuracy Geant4 can reach, it is also very sensitive to problems
due to inaccurate geometry setups, therefore overlapping volumes are not
allowed in Geant4 (see User's Guide for Application Developers, section 4.2.3),
as well as G3's MANY volumes are not supported by G3toG4 (see README placed in
geant4/source/g3tog4).
Boolean solids can be used for this purpose.