XXX - copied to Everonte
xxxxx

Change gray box display, put it in to .rootrc script

void rootlogon ()
{
  cout << "~/.rootrcdir/rootlogon.C is executing.\n";
  gStyle->SetTitleBorderSize(0);
  gStyle->SetFrameFillColor(kWhite); // needed when using root v5

  gStyle->SetCanvasColor(kWhite);     // background is no longer mouse-dropping white
  gStyle->SetPalette(1,0);            // blue to red false color palette. Use 9 for b/w
  gStyle->SetCanvasBorderMode(0);     // turn off canvas borders
  gStyle->SetPadBorderMode(0);
  gStyle->SetPaintTextFormat("5.2f");  // What precision to put numbers if plotted with "TEXT"

  // For publishing:
  gStyle->SetLineWidth(2.);
  gStyle->SetTextSize(1.1);
  gStyle->SetLabelSize(0.06,"xy");
  gStyle->SetTitleSize(0.06,"xy");
  gStyle->SetTitleOffset(1.2,"x");
  gStyle->SetTitleOffset(1.0,"y");
  gStyle->SetPadTopMargin(0.1);
  gStyle->SetPadRightMargin(0.1);
  gStyle->SetPadBottomMargin(0.16);
  gStyle->SetPadLeftMargin(0.12);

}

 

---

Moving of stats Box

  h->Draw();    // need it here to create  stats-box	 
  can->Update();  // need it here to get access to stats-box 
  TPaveStats *statsbox =( TPaveStats *st ) h->GetListOfFunctions()->FindObject("stats");
    statsbox->SetX1NDC(0.18); 
    statsbox->SetY1NDC(0.70);
    statsbox->SetX2NDC(0.48);
    statsbox->SetY2NDC(0.95);
  h->Draw(); // need it to see new position of stat box

---

Arbitrary division of Canvas 

Use case:    
  sprintf(padTit,"Selected high PT tracks, %s",core0);   
  can=new TCanvas("aa","aa",800,600);    TPad *c0=makeTitle(can,padTit,page);   
  TPad *cL,*cR;   splitPadX(0.4,&cL,&cR);    
  cR->cd();    cR->Divide(2,2);  
  cR->cd(1);    h->Draw();
   
 int mxRow=3, kRow=1;
  //Use case:    
  int page=1;
  TString padTit=Form("Boiling runs ");
  can=new TCanvas("aa","aa",800,600);    TPad *c0=makeTitle(can,padTit,page);
  splitPadX(0.7,&cL,&cR);
  cL->cd();    cL->Divide(1,mxRow);
  cR->cd();    cR->Divide(1,mxRow);


  for(int i=0;i<runL.size();i++) {
    int runNo=runL[i];
    processRun(runNo,kRow) ;
    kRow++;
    if(kRow>mxRow) break;
  }

  char *core0="boling";
  char *oPath="./out/";
  int pl=2;
  TString canTit=Form("%s_page%03d",core0,page);
  can->SetTitle(canTit);
  can->SetName(canTit);
  if(pl&2) can->Print(oPath+canTit+".ps");



//------------------------
TPad *makeTitle(TCanvas *c,char *core, int page) {
  c->Range(0,0,1,1);
  TPad *pad0 = new TPad("pad0", "apd0",0.0,0.95,1.,1.);
  pad0->Draw();
  pad0->cd();

  TPaveText *pt = new TPaveText(0,0.,1,1,"br");
  pt->Draw();
  TDatime dt;
  TString txt2=core;
  txt2+=", page=";
  txt2+=page;
  txt2+=",  ";
  txt2+=dt.AsString();
  pt->AddText(txt2);
  txt2="--";
  pt->AddText(txt2);

  c->cd();
  pad = new TPad("pad1", "apd1",0.0,0.0,1,.95);
  pad->Draw();
  return pad;
} 

---

Arbitrary X, Y-split of Canvas 

//------------------------
void splitPadX(float x, TPad **cL, TPad **cR) {
  (*cL) = new TPad("padL", "apdL",0.0,0.,x,0.95);
  (*cL)->Draw();
  (*cR) = new TPad("padL", "apdL",x+0.005,0.,1.0,0.95);
  (*cR)->Draw();
}

//------------------------
void splitPadY(float y, TPad **cU, TPad **cD) {
  (*cU) = new TPad("padD", "apdD",0,y+0.005,1.0,1.);
  (*cU)->Draw();
  (*cD) = new TPad("padU", "apdU",0.0,0.,1.,y);
  (*cD)->Draw();

  /* use case:    
     TPad *cU,*cD;   splitPadY(0.4,&cU,&cD);    cU->cd(); h->Draw()   
  */
}

 

---

gROOT->Macro("loadMuDst.C");
 char* dbDate = "2009-01-01 00:00:00";
 StBemcTablesWriter *bemctables = new StBemcTablesWriter();
 bemctables->loadTables(dbDate);
qiuh@rcf.rhic.bnl.gov wrote:

Hi Matthew.Do you have an example macro or several command lines to use this StBemcTablesWriter?

Thank you.Hao

 

---

use STAR Geometry Browser

- Start Browser
 - Select the vesion of geometry you need  
   You an start browser with your custom dewfautl to avoid the 
selection
for example
   root4star GeomBrowse.C("upg16");
  The other versions will be availabe too (as ususally) however upg16 will be the default one.
 - choose the top volume you want to vizualiza and doubel click it.

- Activate 3D views:

-Navigate

 

---

I want the top edge of the histo is much closer to the yellow line - marking the begin of the second pad.

canvas->Divide(1, 2, 0.001, 0.001);
canvas->cd(2);
gPad->SetTopMargin(0.01);

Four margins between the histogram and pad borders are:
gPad->SetTopMargin(),
gPad->SetBottomMargin(),
gPad->SetLeftMargin(),
gPad->SetRightMargin().

Regards,
Oleksandr

---

recompile root with new library ( I needed gdml to display some graphics)

You can go to $ROOTSYS and run:
./configure `cat ./config.status` --enable-gdml
This will preserve the existing config options and add gdml to them.

 

---

Loop over all objects in the hist.root file

void jan(const char* filename = "allpt.root")
{
 TFile* file = TFile::Open(filename);
 assert(filename);
 TIter next(file->GetListOfKeys());
 TKey* key;
 while (key = (TKey*)next()) {
   TH1F* h1 = (TH1F*)key->ReadObj();
   h1->Draw();
   break;
 }
}