Make separate, specialized geometries for RPhi and RhoZ views.
[u/mrichter/AliRoot.git] / PHOS / AliPHOSLink.cxx
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d15a28e7 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
b2a60966 15/* $Id$ */
d15a28e7 16//_________________________________________________________________________
b2a60966 17// Algorithm class used only by AliPHOSTrackSegmentMaker
2f04ed65 18// Links recpoints into tracksegments
19// Why should I put meaningless comments
20// just to satisfy
21// the code checker
b2a60966 22//*-- Author: Dmitri Peressounko (SUBATECH)
d15a28e7 23
24// --- ROOT system ---
25
26// --- Standard library ---
27
28// --- AliRoot header files ---
29
30#include "AliPHOSLink.h"
31
32ClassImp(AliPHOSLink)
33//____________________________________________________________________________
62423cb6 34 AliPHOSLink::AliPHOSLink() :
648f392e 35 fEmcN(-1), fCpvN(-1), fTrack(-1), fx(-1.), fz(-1.)
62423cb6 36{
37}
38
39//____________________________________________________________________________
648f392e 40AliPHOSLink::AliPHOSLink(Float_t dx, Float_t dz, Int_t emc, Int_t cpv, Int_t track):
43fbaae1 41 fEmcN(emc),
42 fCpvN(cpv),
648f392e 43 fTrack(track),
44 fx(dx),
45 fz(dz)
d15a28e7 46{
b2a60966 47 // ctor
d15a28e7 48}
49
50//____________________________________________________________________________
2a941f4e 51Int_t AliPHOSLink::Compare(const TObject * obj) const
d15a28e7 52{
62423cb6 53 // Compare according to the distance between EMC and CPV RecPoints in a track segment
b2a60966 54
d15a28e7 55 Int_t rv ;
56
57 AliPHOSLink * link = (AliPHOSLink *) obj ;
58
648f392e 59 if(fx*fx+fz*fz < link->fz*link->fz+link->fx*link->fx )
d15a28e7 60 rv = -1 ;
61 else
62 rv = 1 ;
63
64 return rv ;
65}