Re: No symbol gProofServer

From: Fons Rademakers (rdm@pcsalo.cern.ch)
Date: Tue Dec 07 1999 - 02:01:36 MET


Hi Marco,

   I am aware of the problem and working on a fix. The problem is
due to the gROOT->Reset() in your macro that removes the gProofServer
symbol.

Cheers, Fons.

> 
> I'm using a simple macro to plot some information from an TNtuple, read
> from a file. The second time I run it, a sequence of errormessages are
> generated, like "No symbol gProofServer" and "No symbol gProof". Althought
> everything seems to work out well, I think this shoudl be investigated. I
> tried to do it myself, but I was soon lost in the code. Therefore, I send
> you my macro (see below).
> 
> Regards,
> 
> Marco van Leeuwen.
> 
> I'm using root v2.23/09 and the TNtuple in the file is not extraordinary
> large (5 variables, 105 Entries).
> 
> --- Macro.C
> 
> {{
>   gROOT->Reset();
>   TCanvas *c1=new TCanvas("c1","Canvas #1",500,500);
> 
> gPad->DrawFrame(2.5,0.8,40,1.7);
>   TFile fin("vtx_cali_fit.root");
> 
> TNtuple *NT = (TNtuple*) fin->Get("NT");   // Leaving this line out or
> putting it in doesn't change anything
>   Char_t crit[50];
>   for (Int_t
> type=1; type < 4; type++) {
>     NT->SetMarkerStyle(type+2);
> 
> sprintf(&crit,"type==%d",type);
>     NT->Draw("mean:p",crit,"same");
>   }
> }}
> 
> 


-- 
Org:    CERN, European Laboratory for Particle Physics.
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E-Mail: Fons.Rademakers@cern.ch              Phone: +41 22 7679248
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