|Message: Re: Is there an official way to remove a volume structure before closing geometry?||Not Logged In (login)|
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Dear Mike, The functionality that you discuss is not available in the Geant4 geometry modeller. I am not aware of another example of a use case such as yours, where you build a module and want to keep only the top volume. John Sent with Outlook<https://aka.ms/sdimjr> for iOS On Wed, Mar 7, 2018 at 9:08 PM +0100, "Michael H. Kelsey" <email@example.com<mailto:firstname.lastname@example.org>> wrote: *** Discussion title: Geometry In my experiment's simulation framework, we have a highly decentralized way to construct the geometry: a huge collection of cross-dependent classes which build volumes, place daughters, pass LV's up the chain for placement, and so on. I have encountered several places where I need to acquire the "envelope" of one of those objects; that is, the outermost LV and associated solid, but NOT all of the internally placed daughters. The simplest way for me to do this without new code would be to be able to call my "BuildGeometry()" function on the class, and then to gut the returned LV, deleting all the contained daughters (PVs, LVs, and solids). Obviously, this only makes sense while the overall geometry is "open", and still being constructed. Is this kind of functionality built into Geant4? Or do I need to traverse the daughter tree "by hand", finding and removing their various constituents from the geometry Stores? -- Mike Kelsey ------------------------------------------------------------- Visit this GEANT4 at hypernews.slac.stanford.edu message (to reply or unsubscribe) at: http://hypernews.slac.stanford.edu/HyperNews/geant4/get/geometry/1573.html [ MIME part of type text/html without a name stripped ]
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