From Andrei Gheata: Radlen<0 produced recomputation of radlen using G3 algorithm (only in TGeo) G3 just takes the abs value. Of course when geometry was created via VMC the TGeo values were ignored and G3 did its job, but when loading from geometry file, G3 material was created based on the radlen value of TGeo (which being positive, produces recalculation with G3).
From Andrei Gheata:
Radlen<0 produced recomputation of radlen using G3 algorithm (only in TGeo)
G3 just takes the abs value. Of course when geometry was created via VMC
the TGeo values were ignored and G3 did its job, but when loading from
geometry file, G3 material was created based on the radlen value of TGeo
(which being positive, produces recalculation with G3).

This patch preserves the radlen/abslen values as defined
by users.


git-svn-id: acec3fd5b7ea1eb9e79d6329d318e8118ee2e14f@12089 27541ba8-7e3a-0410-8455-c3a389f83636

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