Problem 376 - G4Trap cannot be created with pDX3 or pdX4 = 0
Summary: G4Trap cannot be created with pDX3 or pdX4 = 0
Status: RESOLVED WORKSFORME
Alias: None
Product: Geant4
Classification: Unclassified
Component: geometry/solids (show other problems)
Version: 4.0
Hardware: All All
: P2 normal
Assignee: Vladimir.Grichine
URL:
Depends on:
Blocks:
 
Reported: 2002-06-04 07:54 CEST by Pedro.Arce
Modified: 2002-06-11 08:47 CEST (History)
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Description Pedro.Arce 2002-06-04 07:54:52 CEST 
We have these new volumes in the electromagnetic calorimeter of CMS and we need
to build them.
Comment 1 Vladimir.Grichine 2002-06-11 08:47:59 CEST 
Practically both fDx3 and fDx4 can be small enough, let say 1000*kCarTolerance,
which is 0.001 micron and very far from mechanical accuracy. If one nevertheless
will try to put exactly zero, G4Trap will loose its topology transforming to a
solid with triangle face.