[ROOT] TGraphSmooth

From: Federico Roncarolo (Federico.Roncarolo@cern.ch)
Date: Tue Mar 19 2002 - 17:37:42 MET 

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

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