|Message: Re: Complex object by chaining G4IntersectionSolid||Not Logged In (login)|
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> To make the "shallow union", there are two approaches: Make unions of > pairs, then union pairs of those, and so on until you've built the whole > set. With 60k objects, the nesting will be only 16 layers deep instead > of 60,000 layers. Alternatively, if you're using "USOLIDS", you can use > the G4MultiUnion class to form a single union out of a set of solids by > repeatedly calling AddNode(solid, transform).
Thank you for the suggestion Michael, I will give this a try. I think the G4 Multi Union might be a way to approach this.
> Also, you mentioned that maybe you could split the box into pieces and > do subtraction in the individual pieces. Are the different sub-boxes > identical to one another? If so, then that's also a better choice: make > the "unit cell" shape, and just place it multiple times into your world > (or mother volume).
That is definitely an option that I am considering and I have started testing.
-- Francesc Massanes
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