Hi Federico, Impossible to come with a diagnostic with only these few lines. Could you provide a short example that we can use to understand your problem? Rene Brun Federico Roncarolo wrote: > > Hello, > > I'm trying to interpolate a graph with TGraphSmooth, > I'm working in linux, my makefile looks to compile properly the file .cxx > in which I put: > > ..... > ..... > TGraph *grq1 = new TGraph(ncycles,vtime,vmax);// properly drawn > > TGraph *grout=new TGraph(ncycles+12); > TGraphSmooth *gs1 = new TGraphSmooth(); > > Double_t xout[12]; > Int_t add; > Double_t dt=90e-3; > Double_t t0=784e-3; > > for(add=0;add<12;add++) xout[add]=t0+add*dt; > > grout = gs1->Approx(grq1,"linear",ncycles+12,xout,0,2); > //the program clearly > //stops at this line > ..... > ..... > > but while executing I get the message > > pure virtual method called > Abort (core dumped) > > what's wrong? > > Thanks a lot, > Federico > > __________________________________________________ > Federico Roncarolo federico.roncarolo@cern.ch > alchemist@infinito.it > CERN SL/BI 865 1-A27 > > Tel: > +41.(0)22.76.75611 Work > +41.(0)79.6982190 GSM > +33.(0)4.50.40.82.67 Home > __________________________________________________
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