import ROOT,argparse

parser=argparse.ArgumentParser(description='print out cluster infos')
parser.add_argument('file',help='the input file',type=str)
parser.add_argument('--events',help='number of events to print',type=int,default=-1)
parser.add_argument('--sphit',help='also print sphit infos',action='store_true')
parser.add_argument('--event',help='only plot this event',type=int,default=-1)
args=parser.parse_args()


ROOT.gROOT.ProcessLine(".x rootlogon.C") 
ROOT.gROOT.ProcessLine('gROOT->SetStyle("Plain")')

rfile=ROOT.TFile(args.file,'r')
tree=rfile.Get('cbmsim')

ev=-1
for e in tree:
    ev+=1
    if args.events!=-1 and args.events<ev:
        break
    if args.event!=-1 and args.event!=ev:
        continue

    for cl in e.TpcCluster:
        print 'the errors 0,2 and 3:'
        cl.sig(0).Print()
        cl.sig(2).Print()
        cl.sig(3).Print()
        print 'the cov:'
        cl.cov().Print()
        print 'the pos:'
        cl.pos().Print()
        print ''

    print 'now the hits:'
    for hit in e.TpcSPHit:
        print 'the cov:'
        hit.getHitCov().Print()
        print 'the pos:'
        hit.getPos().Print()
        print ''