From: Flemming Videbaek (videbaek@sgs1.hirg.bnl.gov)
Date: Wed Apr 30 2003 - 13:08:37 EDT
I guess I cannot bring my self to use the term 'howdy y'all' - on ther other hands my scripts aren't called foobar
since I happen to know what it stands for and have higher standards.
Anyhow,
problems solved in a few steps.
a) take Jens Ivar clue that it goes wrong in GFVOLU
b) turn bedug on "vector/input debug 0 0 0 0 1
c) notice the npar ishape is retured as 0 . BAD.
d) check what geant think
cont/print volu 173
Gives back npar ==35 !
e) AHA -> param is defined as param(15) - oh yack
d) change to 35 - should really have changed cdat format too, but no-one
(I hope) uses the volu params saved.
f) recompile, link and run again- test ok
g) DECLARE VICTORY
h) check-in as brat-2-1-4
PS. The pro was caught by the fact the internal param in geant is NOT the same as those
used when defining volumes - a fact that was exposed since the rich as active TRAP volumes;
demonstrating the old fact the even well running programs has bugs that may eat you or at least
sting you one day.
------------------------------------------------------
Flemming Videbaek
Physics Department
Brookhaven National Laboratory
tlf: 631-344-4106
fax 631-344-1334
e-mail: videbaek@bnl.gov
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