Re: [ROOT] TGeo and coordinate system

From: Rene Brun (brun@pcbrun.cern.ch)
Date: Wed Jul 14 2004 - 21:28:49 MEST

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Yes, with the TGeo classes, you can built a deep hierarchy of nodes.
For example, the LHC detectors have geometries with typically 15 levels
or more.
See the description in the Users Guide.


Rene Brun

On 
Wed, 14 Jul 2004, Ahmet Sedat Ayan wrote:

> 
> 
> Hi all,
> 
> With the TGeo package i am trying to create a geometry. I place the
> objects with the  AddNode as;
> 
>     rootbox->AddNode(R, 1, tr10);
>     rootbox->AddNode(O, 1, tr11);
> 
>  I would like to know if one can place the object "O" relative to "R", I
> mean can I define "O" in the coordinate system of "R" ?( tr11  relative to
> origin of "R")
> 
> 
> thanks much,
> ahmet.
> 
> ***************
> 
> Ahmet Sedat Ayan
> 
> Physics & Astronomy Dept.
> Van Allen Hall
> University of Iowa
> Iowa City, IA, 52242
> 
> Voice      : (++ 1 319) 335-1941 (W) (GMT-6)
> Occupation : Ph.D (But still dreamer!)
> e-mail     : ayan@cms.physics.uiowa.edu
> web        : http://jazz.physics.uiowa.edu/~ayan
> 
>

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