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Forum: Geometry
Re: Question How to construct sine or cosine shape geometry? (Linlin Zhang)
Re: None Re: How to construct sine or cosine shape geometry? (John Apostolakis)
Date: 08 May, 2017
From: Linlin Zhang <Linlin Zhang>

Dear John,

Thanks very much for your response. It is very useful :)

Best Regards, Linlin

On Mon, 08 May 2017 10:12:09 GMT, John Apostolakis wrote:

> Dear Linlin,
> 
> The answer depends on the accuracy of the description that you need for 
> your application.
> 
> If you can use an approximate description, then you should slice the 
> tubular shape and approximate its different pieces with an existing 
> Geant4 solid.  I suggest that you look into the G4CutTubs shape, as it 
> may fulfill your needs - it may be possible to create the shape you need 
> by gluing together several segments made of G4CutTubs.  Else you could 
> look into cylinders (G4Tubs), extruded solids or tesselated solids (with 
> triangular or quadrilateral facets.
> 
> Else, if you want a very accurate description, you will need to create 
> your own G4VSolid implementation which describes the wire. Please refer 
> to the Geant4 Users Guide for Toolkit developers regarding the interface 
> this must implement.
> 
> Best regards,
> 
> John Apostolakis
> 
> On 08.05.17 09:51, Linlin Zhang wrote:
> > *** Discussion title: Geometry
> >
> > Hello,
> >
> > I need to construct one solid geometry with sine or cosine shape wire.
> > Does anybody have idea how to do ?
> >
> > Thanks, Linlin
> >
> > -------------------------------------------------------------
> > Visit this GEANT4 at hypernews.slac.stanford.edu message (to reply or unsubscribe) at:
> > http://hypernews.slac.stanford.edu/HyperNews/geant4/get/geometry/1531.html
> 
>  [ MIME part of type text/html without a name stripped ]
> 

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