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earth.C File Reference

Detailed Description

View in nbviewer Open in SWAN This tutorial illustrates the special contour options.

  • "AITOFF" : Draw a contour via an AITOFF projection
  • "MERCATOR" : Draw a contour via an Mercator projection
  • "SINUSOIDAL" : Draw a contour via an Sinusoidal projection
  • "PARABOLIC" : Draw a contour via an Parabolic projection
TCanvas *earth(){
TCanvas *c1 = new TCanvas("c1","earth_projections",700,700);
TH2F *ha = new TH2F("ha","Aitoff", 180, -180, 180, 179, -89.5, 89.5);
TH2F *hm = new TH2F("hm","Mercator", 180, -180, 180, 161, -80.5, 80.5);
TH2F *hs = new TH2F("hs","Sinusoidal",180, -180, 180, 181, -90.5, 90.5);
TH2F *hp = new TH2F("hp","Parabolic", 180, -180, 180, 181, -90.5, 90.5);
TString dat = gROOT->GetTutorialDir();
ifstream in;
while (1) {
in >> x >> y;
if (!in.good()) break;
ha->Fill(x,y, 1);
hm->Fill(x,y, 1);
hs->Fill(x,y, 1);
hp->Fill(x,y, 1);
c1->cd(1); ha->Draw("aitoff");
c1->cd(2); hm->Draw("mercator");
c1->cd(3); hs->Draw("sinusoidal");
c1->cd(4); hp->Draw("parabolic");
return c1;
float Float_t
Definition RtypesCore.h:57
#define gROOT
Definition TROOT.h:404
R__EXTERN TStyle * gStyle
Definition TStyle.h:413
The Canvas class.
Definition TCanvas.h:23
virtual void Draw(Option_t *option="")
Draw this histogram with options.
Definition TH1.cxx:3074
2-D histogram with a float per channel (see TH1 documentation)}
Definition TH2.h:251
Int_t Fill(Double_t)
Invalid Fill method.
Definition TH2.cxx:358
Basic string class.
Definition TString.h:136
const char * Data() const
Definition TString.h:369
TString & ReplaceAll(const TString &s1, const TString &s2)
Definition TString.h:692
TString & Append(const char *cs)
Definition TString.h:564
void SetOptTitle(Int_t tit=1)
Definition TStyle.h:318
void SetOptStat(Int_t stat=1)
The type of information printed in the histogram statistics box can be selected via the parameter mod...
Definition TStyle.cxx:1589
return c1
Definition legend1.C:41
Double_t y[n]
Definition legend1.C:17
Double_t x[n]
Definition legend1.C:17
Olivier Couet (from an original macro sent by Ernst-Jan Buis)

Definition in file earth.C.