TCanvas *c1 = new TCanvas("c1", "Various options on LOG scales plots",0,0,700,900); c1->SetFillColor(30); TPad *pad1 = new TPad("pad1","pad1",0.03,0.62,0.50,0.92,32); TPad *pad2 = new TPad("pad2","pad2",0.51,0.62,0.98,0.92,33); TPad *pad3 = new TPad("pad3","pad3",0.03,0.02,0.97,0.535,38); pad1->Draw(); pad2->Draw(); pad3->Draw(); TPaveLabel *title = new TPaveLabel(0.1,0.94,0.9,0.98, "Various options on LOG scales plots"); title->SetFillColor(16); title->SetTextFont(42); title->Draw(); TPaveText *pave = new TPaveText(0.1,0.55,0.9,0.61); pave->SetFillColor(42); pave->SetTextAlign(12); pave->SetTextFont(42); pave->AddText("When more Log labels are requested, the overlapping labels are removed"); pave->Draw(); pad1->cd(); pad1->SetLogy(); pad1->SetGridy(); TF1 *f1 = new TF1("f1","x*sin(x)*exp(-0.1*x)+15",-10.,10.); TF1 *f2 = new TF1("f2","(sin(x)+cos(x))**5+15",-10.,10.); TF1 *f3 = new TF1("f3","(sin(x)/(x)-x*cos(x))+15",-10.,10.); f1->SetLineWidth(1); f1->SetLineColor(2); f2->SetLineWidth(1); f2->SetLineColor(3); f3->SetLineWidth(1); f3->SetLineColor(4); f1->Draw(); f2->Draw("same"); f3->Draw("same"); f1->GetYaxis()->SetMoreLogLabels(); TPaveText *pave1 = new TPaveText(-6,2,6,6); pave1->SetFillColor(42); pave1->SetTextAlign(12); pave1->SetTextFont(42); pave1->AddText("Log scale along Y axis."); pave1->AddText("More Log labels requested."); pave1->Draw(); pad2->cd(); double x[10] = { 200, 300, 400, 500, 600, 650, 700, 710, 900,1000 }; double y[10] = { 200, 1000, 900, 400, 500, 250, 800, 150, 201, 220 }; TGraph *g_2 = new TGraph(10,x,y); g_2->Draw("AL*"); g_2->SetMarkerColor(2); g_2->GetYaxis()->SetMoreLogLabels(); g_2->GetYaxis()->SetNoExponent(); pad2->SetLogy(); g_2->GetXaxis()->SetMoreLogLabels(); pad2->SetLogx(); pad2->SetGridx(); TPaveText *pave2 = new TPaveText(150,80,500,180); pave2->SetFillColor(42); pave2->SetTextFont(42); pave2->SetTextAlign(12); pave2->AddText("Log scale along X and Y axis."); pave2->AddText("More Log labels on both."); pave2->AddText("No exponent along Y axis."); pave2->Draw(); pad3->cd(); pad3->SetGridx(); pad3->SetGridy(); pad3->SetLogy(); pad3->SetLogx(); TF1 *f4 = new TF1("f4a","x*sin(x+10)+25",1,21); f4->SetLineWidth(1); f4->Draw(); f4->SetNpx(200); f4->GetYaxis()->SetMoreLogLabels(); f4->GetXaxis()->SetMoreLogLabels(); f4 = new TF1("f4b","x*cos(x+10)*sin(x+10)+25",1,21); f4->SetLineWidth(1); f4->Draw("same"); f4->SetNpx(200); Int_t a = 20; for (int i=a; i>=1; i--) { f4 = new TF1(Form("f4b_%d",i),"x*sin(x+10)*[0]/[1]+25",1,21); f4->SetParameter(0,i); f4->SetParameter(1,a); f4->SetNpx(200); f4->SetLineWidth(1); f4->SetLineColor(i+10); f4->Draw("same"); f4 = new TF1(Form("f4c_%d",i),"x*cos(x+10)*sin(x+10)*[0]/[1]+25",1,25); f4->SetParameter(0,i); f4->SetParameter(1,a); f4->SetNpx(200); f4->SetLineWidth(1); f4->SetLineColor(i+30); f4->Draw("same"); } TPaveText *pave3 = new TPaveText(1.2,8,9,15); pave3->SetFillColor(42); pave3->AddText("Log scale along X and Y axis."); pave3->SetTextFont(42); pave3->SetTextAlign(12); pave3->AddText("More Log labels on both."); pave3->AddText("The labels have no exponents (they would be 0 or 1)"); pave3->Draw(); gROOT->GetListOfCanvases()->Draw()