(no subject)

From: kamps (kamps@fsw.leidenuniv.nl)
Date: Tue Aug 08 2000 - 16:55:18 MEST


Hello,
Is it correct that histogram like attributes of a graph must be handled by
the GetHistogram()
function ? The program below runs under WINNT, visual C++ 6.0, root 2.24/05,
but crashes if
I include the line that is commented out.

#include <TRoot.h>
#include <TCanvas.h>
#include <TPad.h>
#include <TApplication.h>
#include <TGraph.h>
#include <TH1.h>

extern void InitGui();
VoidFuncPtr_t initfuncs[] = {InitGui, 0};
TROOT root("rint","The ROOT Interactive Interface", initfuncs);

int main()
{
	TApplication* pRootApp = new TApplication("RootApp",0,0);
	TCanvas* c = new TCanvas("c1","bla",200,10,600,400);
	TPad *pad1 = new TPad("pad1","The pad",0.05,0.52,0.95,0.97);

	c->SetGrid();

	float x[3];
	float y[3];

	x[0] = 0.0;
	y[0] = 0.0;

	x[1] = 0.5;
	y[1] = 0.5;

	x[2] = 0.9;
	y[2] = 0.9;

	TGraph graph(3,x,y);
	graph.SetTitle("linear");
//	graph.GetHistogram()->SetLabelSize(1e-1);
	graph.Draw();

	c->Modified();
	c->Update();

	while(1)
		;

	return 0;
}



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