Thanks. This works nicely .But If I want to save it in a postscript file
by adding
c1->Print("new.ps"); to the macro ,shaded region disappears,graph prints.
Subhendu Chakrabarti
On Tue, 6 Aug 2002, Rene Brun wrote:
> Hi,
>
> Here is an example
>
> void fillg() {
> const Int_t n = 8;
> Double_t x[n] = {87,100,110,120,130,150,160,200};
> Double_t y[n] = {1e-6,2e-6,2.5e-6,3e-6,3e-2,2e-1,3e-1,7e-1};
> Double_t xmin = 80, ymin = 1e-6, xmax = 200, ymax = 1;
>
> TGraph *g = new TGraph(n,x,y);
>
> TCanvas *c1 = new TCanvas("c1");
> c1->SetLogy();
> c1->DrawFrame(xmin,ymin,xmax,ymax);
> g->SetLineColor(2);
> g->Draw("l");
>
> //make a new graph using the previous graph points
> //+ the corner points of the pad.
> TGraph *gabove = new TGraph(n+3);
> for (Int_t i=0;i<n;i++) gabove->SetPoint(i,x[i],y[i]);
> gabove->SetPoint(n,xmax,ymax);
> gabove->SetPoint(n+1,xmin,ymax);
> gabove->SetPoint(n+2,xmin,ymin);
> gabove->SetFillColor(4);
> gabove->SetFillStyle(3012);
> gabove->Draw("f");
> }
>
>
> Rene Brun
>
> On Tue, 6 Aug 2002, Subhendu Chakrabarti wrote:
>
> >
> > Hi
> > I want to give a dark shade on the upper side of the graph
> > only .(see attachment)
> >
> > Can anybody give some idea how to do that ?
> >
> > Thanks in advance .
> >
> > Subhendu Chakrabarti
> >
> >
> >
>
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