Hi Gero,
Thanks for complaining about this special case. Now fixed in CVS.
Rene Brun
On Mon, 7
Jul 2003, Gero Flucke wrote:
> Hi!
> I noticed that for TGraph the draw option 'l' (simple poly-line) and 'c'
> (smooth curve) behave different:
>
> If the a point of a TGraph is outside the axis range of the previous drawn
> histogram, than for 'l' the poly-line connects all points, i.e. the line
> is drawn untill the border of the frame (as one wants it!). But for 'c'
> the curve just ignores the points outside the range:
>
> {
> TH1* hist = new TH1F("hist", "hist", 20, 1, 10);
> hist->SetBinContent(1, 5.);
>
> TGraph* graph = new TGraph(6);
> //graph->SetPoint(0, 1., 2.5);
> graph->SetPoint(0, 0.99999, 2.5);
> graph->SetPoint(1, 2., 1.5);
> graph->SetPoint(2, 3., 1.5);
> graph->SetPoint(3, 4.5, 4.);
> graph->SetPoint(4, 5.5, 4.5);
> graph->SetPoint(5, 7., 4.);
>
> hist->Draw();
> // graph->Draw("l");
> graph->Draw("cl");
> }
>
> This is especially annoying if it is the first or the last point...
> Is it a bug or a feature?
> How to draw a smooth line just for exactly the range of the x-axis,
> although first and last point defining the TGraph are outside the axis
> range?
>
> BTW: I am using root 3.04_02 on a linux PC.
>
>
> Cheers
>
> Gero
>
>
>
> -----------------------------------------------------------------------
> Gero Flucke
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> 22607 Hamburg
> +49-(0)40-8998-2454
>
>
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>
>
>
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