From: Florian (florian.sommerer@cern.ch)
Date: Thu Jan 25 2007 - 16:06:03 CET
Dear Chris!
I think there is a misunderstanding. As far as I know the 3 vectors do
not define height, width and length. Each of these vectors lie on one
edge of the box and the length of each vector is the length of the edge.
If you look into the manual p255 fig 8.2 (CERN, yellow report) you find
a drawing how it works.
Hope this helps.
Regards, Florian
Chris Theis wrote:
> Hello,
>
> I'm currently dealing with an old input file which uses BOX definitions
> and came across the following issue, which is not really clear to me.
> According to the manual the user has to define an origin of the box + 3
> vectors for height, width & length. Furthermore, it's a requirement that
> the user ensures perpendicularity of those vectors. However, nothing is
> stated with respect to the orientation of the basis generated by those
> vectors. I'm not sure whether it is a requirement that they form a
> right-handed coordinate system and what is the effect if a left-handed
> system is (accidentally) supplied? Probably somebody could shed some
> light on this issue.
>
> Thanks in advance
> Chris
>
>
-- ########################################### Florian Sommerer European Organization for Nuclear Research CERN DSU/TT Mailbox Z08700 Geneve 23 CH-1211 Switzerland Tel : +41 2276 75582 ###########################################
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