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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