Re: Still can't get bb vertex

From: Stephen J. Sanders (ssanders@ku.edu)
Date: Fri Oct 26 2001 - 16:50:16 EDT

  • Next message: Djamel Ouerdane: "Re: Still can't get bb vertex"

    Hi Djamel,
      That was the problem.  Everyting seems to be working!!!!!  Thanks
    for all of your help.
    
    ...steve
    
    Djamel Ouerdane wrote:
    
    >Steve, 
    >
    >I've sent this email to the brahms-dev-l but didn't show up so far.
    >
    >Hope you can get it now.
    >
    >Djam
    >
    >
    >On Fri, 26 Oct 2001, Djamel Ouerdane wrote:
    >
    >>Hi Steve, don't worry about the long list of params claiming there are not 
    >>set. There are at begin time in fact. And this list shows up at Init time.
    >>
    >>For the stuff you got, that's odd since you should always have a vertex 
    >>(since the fastest tube method always works....euh, not that's not true!)
    >>
    >>I got it: the cal hits module make sure that you have always some hits in 
    >>left and right arrays to build the vtx.
    >>It might happen that your thresholds and TDC requirements to construct the 
    >>cal hits are not met because of hits that are under thresholds or having a 
    >>TDC overlowed.
    >>
    >>then, the vertex module won't have anything to build a vtx from.
    >>if you try to get the vtx, make sure it's not null pointer:
    >>
    >> if (vtx)
    >>  cout << "etc..." << endl;
    >>
    >>the reason you have that is that you don't use the main module and 
    >>call all event methods yourself but don't make the internal checks 
    >>yourself at the same time.
    >>
    >>Djam	 
    >>
    >>
    >>
    >
    



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