Hi Luis, Just try gROOT->SetBatch(kTRUE); to get rid of all graphical output. Cheers, Christophe. +-----------------------------------------------------------\|/---+ | Christophe DELAERE office: e253 !o o! | | UCL - FYNU phone : 32-(0)10-473234 ! i ! | | chemin du cyclotron, 2 fax : 32-(0)10-452183 `-' | | 1348 Louvain-la-Neuve BELGIUM e-mail: delaere@fynu.ucl.ac.be | +-----------------------------------------------------------------+ On Fri, 8 Mar 2002, Luis Silva wrote: > Dear roottalk. > > I'm doing a program that use ROOT's ability to generate > postscripts. > > Essentiailly, this program is called by cron in a machine with no > X-window (no grafical interface). > > The postscripts are gererated from histos. > > > So i do something like this: > > ... > TFile *f; > TH1F *histo; > TCanvas *myc=new TCanvas("c","c",0,0,600,400); > > ... > > f = new TFile("servers_stats.root","RECREATE"); > ... > > gStyle->SetOptStat(0); > > for (int i=0;i<nlines;i++) { > > Float_t size=0.0; > > TPostScript *ps = new TPostScript(name[i]+".ps",112); > ... > > histo=new TH1F(name[i].Data(),"database server > progression",3000,0,3000); > histo->SetFillColor(4); > histo->SetMaximum(2100000); > int count=0; > while(rs->Next()) { > size = rs->GetFloat(1); > histo->Fill(count,size); > count++; > } > > ... > > if (size>500000.0) > myc->SetLogy(0); > else myc->SetLogy(1); > > f->Write(); > > histo->Draw(); > > TF1 *max=new TF1("max","2100000",0,3000); > max->SetLineColor(6); > max->Draw("same"); > > TF1 *dangerous=new TF1("dangerous","1900000",0,3000); > dangerous->SetLineColor(2); > dangerous->Draw("same"); > > TLegend Legend(0.8, 0.2, 1.0, 0.4); > Legend.SetHeader(name[i]+"Kb/hour:"); > Legend.AddEntry(histo, "Growth Size", "f"); > Legend.AddEntry(max, "Maximum File size", "f"); > Legend.AddEntry(dangerous, "Dangerous size level", "f"); > Legend.Draw(); > myc->Update(); > > ps->Close(); > ... > > Is there any way to this like "silent"; in a way that not need the > X-window?. There is, probably, a method to do that. I hope. > > Thanks in advance. > > Best Regards. > > Um abraço, > Luís Silva. > > +*************************+***********************************+ > |Luís Silva |/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/| > |Colaborator at DESY |Adress:FCUL | > |in Hamburg Germany |Campo Grande, Edifício C8,room 8518| > |Experiment Hera-b |1749-016 Lisboa-Portugal | > |e-mail:Luis.Silva@desy.de|Tel.: +351 21 750 00 00 Ext.:28518 | > +=========================+===================================+ > >
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