Hi Miro,
I am aware of the problem when using the smoothing option "C"
A clean solution to this clipping problem requires some work.
The algorithm is currently only implemented with option "L"
Rene Brun
Miroslav Helbich wrote:
>
> Hi all,
>
> I have discovered the following bug. When I draw the TGraph object with
> graph->Draw("AC") and restrict the histogram scale to ommit some points,
> the line is not drawn through those points and treats them as if they
> wouldn't exist. This is very dangerous and can fool many people: where is
> the bump? This feature is not present in other options e.g
> graph->Draw("AL").
>
> I'm using SuSE Linux 6.3 (i386) - Kernel 2.2.16 (pts/12)
> and root Version 3.01/05.
>
> Miro
>
> To illustrate the problem
>
> {
> //=========Macro generated from canvas: c1/c1
> //========= (Tue Sep 11 14:48:02 2001) by ROOT version3.01/05
> TCanvas *c1 = new TCanvas("c1", "c1",10,10,700,500);
> c1->Range(-0.138363,-0.122176,1.23736,1.13146);
> c1->SetFillColor(0);
> c1->SetBorderMode(0);
> c1->SetBorderSize(2);
> c1->SetFrameFillColor(0);
> c1->SetFrameBorderMode(0);
>
> TGraph *graph = new TGraph(5);
>
> graph->SetPoint(0,0.1,0.5);
> graph->SetPoint(1,0.3,0.5);
> graph->SetPoint(2,0.5,0.5);
> graph->SetPoint(3,0.7,1.5);
> graph->SetPoint(4,1.,0.5);
>
> TH1 *Graph1 = new TH1F("Graph1","Pdf's enhancing high x
> region",5,0.,1.);
> Graph1->SetMinimum(0);
> Graph1->SetMaximum(1.0); //note that 1.0 is less than highest point=1.5
> graph->SetHistogram(Graph1);
>
> graph->DrawClone("AC"); // why the point n.4 is not connected?
>
> }
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