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Forum: Event and Track Management
Re: None Problem with GetProcessName() (Aram)
Re: None Re: Problem with GetProcessName() (Marc Verderi)
Date: 26 May, 2008
From: Aram <ateymura@yahoo.com>

Hi Marc,

that is correct the problem arises only if I try to output to the screen (or assign to a G4String) the result of aTrack->GetCreatorProcess()->GetProcessName();

this can be easily tested if you copy those lines into the stepping action of novice example N02.

But that is true aTrack->GetCreatorProcess() is 0 for primary particles.

thanks, Aram

>>Hello Aram,
>>
>>Have you checked that "aTrack->GetCreatorProcess() != 0" ? I would guess 
>>that primary particles (ie the ones produced by the generator, which are 
>>those having aTrack->GetTrack() == 1) do not have a 
>>"GetProcessCreator()" defined.
>>
>>Cheers,
>>Marc
>>
>>PS : I am a bit surprised that the lines :
>>
>>///  
>>  G4Track* aTrack = aStep->GetTrack();
>>  if(aTrack->GetTrackID()==1)
>>    aTrack->GetCreatorProcess()->GetProcessName();
>>///
>>
>>do not show the problem... Do you confirm you don't have problems with 
>>these lines ?

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