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. Mail: 1211 Geneve 23, Switzerland E-Mail: Fons.Rademakers@cern.ch Phone: +41 22 7679248 WWW: http://root.cern.ch/~rdm/ Fax: +41 22 7677910
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