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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