|Message: Re: Retrieving post step point Volume causes Seg Fault||Not Logged In (login)|
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Dear Geant4 experts,
This might be very trivial to others; but can someone tell me what was the exact command(or commands) used to avoid the segmentation fault?
Thanking you in advance.
SamirOn Thu, 26 Jun 2014 15:55:37 GMT, Marc Verderi wrote:
> Dear William, > > This is a "classical" trap: when reaching the boundary of the world > volume, the "post step point volume" should contain the "next" volume, > in this case there is not next volume, and the GetVolume() pointer value > returned in null. Just check if this pointer is null before calling any > method (GetLogicalVolume() in your case) on it. > > Cheers, > Marc > > On 06/26/2014 05:28 PM, William Donahue wrote: > > *** Discussion title: Event and Track Management > > > > Hi Guys, > > > > In my application I am checking to see if an object passes into a > > detector at the end of its step and counting based on energy of the > > particle and its location. > > > > In my code I am trying to implement a check to perform this. I get > > segmentation faults early on and my assumption is that it has to do with > > the post step point when the particle reaches the World Volume boundary. > > > > I have included my current user stepping action file. Is there any way > > to check if the particle has reached that boundry before i try to get > > the logical volume of the post step point? > > > > Attachment: > > http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2014/06/26/08.27-29559-SteppingAction.cc > > > > ------------------------------------------------------------- > > Visit this GEANT4 at hypernews.slac.stanford.edu message (to reply or unsubscribe) at: > > http://hypernews.slac.stanford.edu/HyperNews/geant4/get/eventtrackmanage/1209.html >