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Question Re: Query about the efficient use of G4TessellatedSolid 

Forum: Geometry
Re: Question Query about the efficient use of G4TessellatedSolid (Alex Leatherland)
Re: None Re: Query about the efficient use of G4TessellatedSolid (John Apostolakis)
Date: 12 Mar, 2013
From: Alex Leatherland <Alex Leatherland>

Thank you that was very helpful.

Another question about Tessellated solids, does G4Tesselated Solid cope with volumes with cavities? So volumes with one or more internal surfaces.

The reason I ask is I tried a quick geantino test with tesselated shape describing a 5x5x5mm cube with a 4.5x4.5x4.5mm central cavity. The geantinos that pass through the volumes centre according to verbose tracking go

world
walledcube
world


Where I would expect them to go

world
walledcube
world
walledcube
world

The transport positions also imply that the second wall is "missed"

Below is a quick 2D representation of the geometry involved

-------------------
|                 |
|  -------------  |
|  |           |  |
|  |           |  |
|  |           |  |
|  |           |  |
|  |           |  |
|  -------------  |
|                 |
-------------------

I've been through each facet and all the facets on the outer surface are counter clockwise looking from the outside, and all the facets on teh inner surface are counter clockwise looking from the centre of the cavity.

Thank you for your help.

Alex Leatherland

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1 More: Re: Query about the efficient use of G4TessellatedSolid   (Alex Leatherland - 12 Mar, 2013)
2 None: Re: Query about the efficient use of G4TessellatedSolid   (Tatiana Nikitina - 12 Mar, 2013)
1 None: Re: Query about the efficient use of G4TessellatedSolid   (Alex Leatherland - 12 Mar, 2013)
(_ None: Re: Query about the efficient use of G4TessellatedSolid   (Tatiana Nikitina - 13 Mar, 2013)
(_ None: Re: Query about the efficient use of G4TessellatedSolid   (Alex Leatherland - 13 Mar, 2013)
(_ None: Re: Query about the efficient use of G4TessellatedSolid   (Alex Leatherland - 13 Mar, 2013)
(_ More: Re: Query about the efficient use of G4TessellatedSolid   (Gabriele Cosmo - 13 Mar, 2013)
(_ None: Re: Query about the efficient use of G4TessellatedSolid   (Alex Leatherland - 13 Mar, 2013)
(_ None: Re: Query about the efficient use of G4TessellatedSolid   (Tatiana Nikitina - 18 Mar, 2013)
(_ None: Re: Query about the efficient use of G4TessellatedSolid   (Alex Leatherland - 19 Mar, 2013)
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