|Message: Re: Query about the efficient use of G4TessellatedSolid||Not Logged In (login)|
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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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