More details on installation pre-requisites

[u/mrichter/AliRoot.git] / RICH / RICHdisplay.C

RICHdisplay (Int_t nevent=0) {
// Dynamically link some shared libs
 
    if (gClassTable->GetID("AliRun") < 0) {
	gROOT->LoadMacro("loadlibs.C");
	loadlibs();
    }
    
    
// Connect the Root Galice file containing Geometry, Kine and Hits
    
    TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject("galice.root");
    if (file) file->Close(); 
    file = new TFile("galice.root","UPDATE");
    file->ls();
    
    printf ("I'm after Map \n");
    
// Get AliRun object from file or create it if not on file
    
    if (!gAlice) {
	gAlice = (AliRun*)file->Get("gAlice");
	if (gAlice) printf("AliRun object found on file\n");
	if (!gAlice) gAlice = new AliRun("gAlice","Alice test program");
    }
    printf ("I'm after gAlice \n");
    
    // Create Event Display object
    AliRICHdisplay *muondisplay = new AliRICHdisplay(750);
    
// Display first event
    gAlice->GetEvent(nevent);
    muondisplay->ShowNextEvent(0);
}