1 /**************************************************************************
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4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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8 * documentation strictly for non-commercial purposes is hereby granted *
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14 **************************************************************************/
16 // $Id: AliEvent.cxx,v 1.25 2004/10/20 10:49:44 nick Exp $
18 ///////////////////////////////////////////////////////////////////////////
20 // Creation and investigation of an Alice physics event.
21 // An AliEvent can be constructed by adding AliTracks, Alivertices, AliJets
22 // and/or devices like AliCalorimeters or AliDevice (derived) objects.
24 // All objects which are derived from TObject can be regarded as a device.
25 // However, AliDevice (or derived) objects profit from additional hit
26 // handling facilities.
27 // A "hit" is a generic name indicating an AliSignal (or derived) object.
28 // Note that AliEvent does NOT own hits; it only provides references to hits
29 // obtained from the various devices.
30 // This implies that hits should be owned by the devices themselves.
32 // The basic functionality of AliEvent is identical to the one of AliVertex.
33 // So, an AliEvent may be used as the primary vertex with some additional
34 // functionality compared to AliVertex.
36 // To provide maximal flexibility to the user, the two modes of track/jet/vertex
37 // storage as described in AliJet and AliVertex can be used.
38 // In addition an identical structure is provided for the storage of devices like
39 // AliCalorimeter objects, which can be selected by means of the memberfunction
42 // a) SetDevCopy(0) (which is the default).
43 // Only the pointers of the 'added' devices are stored.
44 // This mode is typically used by making studies based on a fixed set
45 // of devices which stays under user control or is kept on an external
47 // In this way the AliEvent just represents a 'logical structure' for the
51 // Modifications made to the original devices also affect the device
52 // objects which are stored in the AliEvent.
55 // Of every 'added' device a private copy will be made of which the pointer
57 // In this way the AliEvent represents an entity on its own and modifications
58 // made to the original calorimeters do not affect the AliCalorimeter objects
59 // which are stored in the AliEvent.
60 // This mode will allow 'adding' many different devices into an AliEvent by
61 // creating only one device instance in the main programme and using the
62 // Reset() and parameter setting memberfunctions of the object representing the device.
65 // The copy is made using the Clone() memberfunction.
66 // All devices (i.e. classes derived from TObject) have the default TObject::Clone()
68 // However, devices generally contain an internal (signal) data structure
69 // which may include pointers to other objects. Therefore it is recommended to provide
70 // for all devices a specific copy constructor and override the default Clone()
71 // memberfunction using this copy constructor.
72 // Examples for this may be seen from AliCalorimeter, AliSignal and AliDevice.
74 // See also the documentation provided for the memberfunction SetOwner().
76 // Coding example to make an event consisting of a primary vertex,
77 // 2 secondary vertices and a calorimeter.
78 // --------------------------------------------------------------
79 // vp contains the tracks 1,2,3 and 4 (primary vertex)
80 // v1 contains the tracks 5,6 and 7 (sec. vertex)
81 // v2 contains the jets 1 and 2 (sec. vertex)
85 // Specify the event object as the repository of all objects
86 // for the event building and physics analysis.
89 // evt.SetTrackCopy(1);
91 // Fill the event structure with the basic objects
93 // AliCalorimeter emcal1;
94 // AliCalorimeter emcal2;
96 // ... // code to fill the emcal1 and emcal2 calorimeter data
99 // evt.AddDevice(emcal1);
100 // evt.AddDevice(emcal2);
102 // // Assume AliTOF has been derived from AliDevice
106 // ... // code to fill the tof1 and tof2 data
109 // evt.AddDevice(tof1);
110 // evt.AddDevice(tof2);
112 // AliTrack* tx=new AliTrack();
113 // for (Int_t i=0; i<10; i++)
116 // ... // code to fill the track data
128 // Order and investigate all the hits of all the TOF devices
130 // TObjArray* hits=evt.GetHits("AliTOF");
131 // TObjArray* orderedtofs=evt.SortHits(hits);
133 // if (orderedtofs) nhits=orderedtofs->GetEntries();
134 // for (Int_t i=0; i<nhits; i++)
136 // AliSignal* sx=(AliSignal*)orderedtofs->At(i);
137 // if (sx) sx->Data();
140 // Order and investigate all the hits of all the calorimeter devices
142 // TObjArray* hits=evt.GetHits("AliCalorimeter");
143 // TObjArray* orderedcals=evt.SortHits(hits);
145 // if (orderedcals) nhits=orderedcals->GetEntries();
146 // for (Int_t i=0; i<nhits; i++)
148 // AliSignal* sx=(AliSignal*)orderedcals->At(i);
149 // if (sx) sx->Data();
152 // Build the event structure (vertices, jets, ...) for physics analysis
153 // based on the basic objects from the event repository.
156 // for (Int_t i=0; i<evt.GetNtracks(); i++)
158 // tx=evt.GetTrack(i);
160 // ... // code to fill the jet data
165 // tx=evt.GetTrack(1);
167 // tx=evt.GetTrack(2);
169 // tx=evt.GetTrack(3);
171 // tx=evt.GetTrack(4);
174 // Float_t rp[3]={2.4,0.1,-8.5};
175 // vp.SetPosition(rp,"car");
178 // tx=evt.GetTrack(5);
180 // tx=evt.GetTrack(6);
182 // tx=evt.GetTrack(7);
185 // Float_t r1[3]={1.6,-3.2,5.7};
186 // v1.SetPosition(r1,"car");
194 // Float_t r2[3]={6.2,4.8,1.3};
195 // v2.SetPosition(r2,"car");
197 // Specify the vertices v1 and v2 as secondary vertices of the primary
199 // vp.SetVertexCopy(1);
203 // Enter the physics structures into the event
204 // evt.SetVertexCopy(1);
205 // evt.AddVertex(vp,0);
207 // The jets j1 and j2 are already available via sec. vertex v2,
208 // but can be made available also from the event itself if desired.
219 // Float_t etot=evt.GetEnergy();
220 // Ali3Vector ptot=evt.Get3Momentum();
222 // evt.GetPosition(loc,"sph");
223 // AliPosition r=v1.GetPosition();
225 // Int_t nt=v2.GetNtracks();
226 // AliTrack* tv=v2.GetTrack(1); // Access track number 1 of Vertex v2
230 // Int_t nv=evt.GetNvtx();
231 // AliVertex* vx=evt.GetVertex(1); // Access primary vertex
232 // Float_t e=vx->GetEnergy();
234 // Float_t M=evt.GetInvmass();
236 // Reconstruct the event from scratch
239 // evt.SetNvmax(25); // Increase initial no. of sec. vertices
241 // ... // code to create tracks etc...
244 // Note : All quantities are in GeV, GeV/c or GeV/c**2
246 //--- Author: Nick van Eijndhoven 27-may-2001 UU-SAP Utrecht
247 //- Modified: NvE $Date: 2004/10/20 10:49:44 $ UU-SAP Utrecht
248 ///////////////////////////////////////////////////////////////////////////
250 #include "AliEvent.h"
251 #include "Riostream.h"
253 ClassImp(AliEvent) // Class implementation to enable ROOT I/O
255 AliEvent::AliEvent() : AliVertex(),AliTimestamp()
257 // Default constructor.
258 // All variables initialised to default values.
276 ///////////////////////////////////////////////////////////////////////////
277 AliEvent::AliEvent(Int_t n) : AliVertex(n),AliTimestamp()
279 // Create an event to hold initially a maximum of n tracks
280 // All variables initialised to default values
283 cout << " *** This AliVertex initialisation was invoked via the AliEvent ctor." << endl;
302 ///////////////////////////////////////////////////////////////////////////
303 AliEvent::~AliEvent()
305 // Default destructor
332 ///////////////////////////////////////////////////////////////////////////
333 AliEvent::AliEvent(const AliEvent& evt) : AliVertex(evt),AliTimestamp(evt)
340 fPnucProj=evt.fPnucProj;
344 fPnucTarg=evt.fPnucTarg;
346 fDevCopy=evt.fDevCopy;
354 Int_t ndevs=evt.GetNdevices();
357 fDevices=new TObjArray(ndevs);
358 if (fDevCopy) fDevices->SetOwner();
359 for (Int_t i=1; i<=ndevs; i++)
361 TObject* dev=evt.GetDevice(i);
366 fDevices->Add(dev->Clone());
376 ///////////////////////////////////////////////////////////////////////////
377 void AliEvent::Reset()
379 // Reset all variables to default values
380 // The max. number of tracks is set to the initial value again
381 // The max. number of vertices is set to the default value again
382 // Note : The DevCopy mode is maintained as it was set by the user before.
424 ///////////////////////////////////////////////////////////////////////////
425 void AliEvent::SetOwner(Bool_t own)
427 // Set ownership of all added objects.
428 // The default parameter is own=kTRUE.
430 // Invokation of this memberfunction also sets all the copy modes
431 // (e.g. TrackCopy & co.) according to the value of own.
433 // This function (with own=kTRUE) is particularly useful when reading data
434 // from a tree/file, since Reset() will then actually remove all the
435 // added objects from memory irrespective of the copy mode settings
436 // during the tree/file creation process. In this way it provides a nice way
437 // of preventing possible memory leaks in the reading/analysis process.
439 // In addition this memberfunction can also be used as a shortcut to set all
440 // copy modes in one go during a tree/file creation process.
441 // However, in this case the user has to take care to only set/change the
442 // ownership (and copy mode) for empty objects (e.g. newly created objects
443 // or after invokation of the Reset() memberfunction) otherwise it will
444 // very likely result in inconsistent destructor behaviour.
448 if (fDevices) fDevices->SetOwner(own);
451 AliVertex::SetOwner(own);
453 ///////////////////////////////////////////////////////////////////////////
454 void AliEvent::SetDayTime(TTimeStamp& stamp)
456 // Set the date and time stamp for this event.
457 // An exact copy of the entered date/time stamp will be saved with an
458 // accuracy of 1 nanosecond.
460 // Note : Since the introduction of the more versatile class AliTimestamp
461 // and the fact that AliEvent has now been derived from it,
462 // this memberfunction has become obsolete.
463 // It is recommended to use the corresponding AliTimestamp
464 // functionality directly for AliEvent instances.
465 // This memberfunction is only kept for backward compatibility.
467 Set(stamp.GetDate(),stamp.GetTime(),0,kTRUE,0);
469 ///////////////////////////////////////////////////////////////////////////
470 void AliEvent::SetDayTime(TDatime& stamp)
472 // Set the date and time stamp for this event.
473 // The entered date/time will be interpreted as being the local date/time
474 // and the accuracy is 1 second.
476 // This function with the TDatime argument is mainly kept for backward
477 // compatibility reasons.
478 // It is recommended to use the corresponding AliTimestamp functionality
479 // directly for AliEvent instances.
481 Set(stamp.GetDate(),stamp.GetTime(),0,kFALSE,0);
483 ///////////////////////////////////////////////////////////////////////////
484 void AliEvent::SetRunNumber(Int_t run)
486 // Set the run number for this event
489 ///////////////////////////////////////////////////////////////////////////
490 void AliEvent::SetEventNumber(Int_t evt)
492 // Set the event number for this event
495 ///////////////////////////////////////////////////////////////////////////
496 TTimeStamp AliEvent::GetDayTime() const
498 // Provide the date and time stamp for this event
500 // Note : Since the introduction of the more versatile class AliTimestamp
501 // and the fact that AliEvent has now been derived from it,
502 // this memberfunction has become obsolete.
503 // It is recommended to use the corresponding AliTimestamp
504 // functionality directly for AliEvent instances.
505 // This memberfunction is only kept for backward compatibility.
507 return (TTimeStamp)(*this);
509 ///////////////////////////////////////////////////////////////////////////
510 Int_t AliEvent::GetRunNumber() const
512 // Provide the run number for this event
515 ///////////////////////////////////////////////////////////////////////////
516 Int_t AliEvent::GetEventNumber() const
518 // Provide the event number for this event
521 ///////////////////////////////////////////////////////////////////////////
522 void AliEvent::SetProjectile(Int_t a,Int_t z,Double_t pnuc,Int_t id)
524 // Set the projectile A, Z, momentum per nucleon and user defined particle ID.
525 // By default the particle ID is set to zero.
531 ///////////////////////////////////////////////////////////////////////////
532 Int_t AliEvent::GetProjectileA() const
534 // Provide the projectile A value.
537 ///////////////////////////////////////////////////////////////////////////
538 Int_t AliEvent::GetProjectileZ() const
540 // Provide the projectile Z value.
543 ///////////////////////////////////////////////////////////////////////////
544 Double_t AliEvent::GetProjectilePnuc() const
546 // Provide the projectile momentum value per nucleon.
549 ///////////////////////////////////////////////////////////////////////////
550 Int_t AliEvent::GetProjectileId() const
552 // Provide the user defined particle ID of the projectile.
555 ///////////////////////////////////////////////////////////////////////////
556 void AliEvent::SetTarget(Int_t a,Int_t z,Double_t pnuc,Int_t id)
558 // Set the target A, Z, momentum per nucleon and user defined particle ID.
559 // By default the particle ID is set to zero.
565 ///////////////////////////////////////////////////////////////////////////
566 Int_t AliEvent::GetTargetA() const
568 // Provide the target A value.
571 ///////////////////////////////////////////////////////////////////////////
572 Int_t AliEvent::GetTargetZ() const
574 // Provide the target Z value.
577 ///////////////////////////////////////////////////////////////////////////
578 Double_t AliEvent::GetTargetPnuc() const
580 // Provide the target momentum value per nucleon.
583 ///////////////////////////////////////////////////////////////////////////
584 Int_t AliEvent::GetTargetId() const
586 // Provide the user defined particle ID of the target.
589 ///////////////////////////////////////////////////////////////////////////
590 void AliEvent::HeaderData()
592 // Provide event header information
593 const char* name=GetName();
594 const char* title=GetTitle();
595 cout << " *" << ClassName() << "::Data*";
596 if (strlen(name)) cout << " Name : " << GetName();
597 if (strlen(title)) cout << " Title : " << GetTitle();
600 cout << " Run : " << fRun << " Event : " << fEvent << endl;
604 ///////////////////////////////////////////////////////////////////////////
605 void AliEvent::Data(TString f,TString u)
607 // Provide event information within the coordinate frame f
609 // The string argument "u" allows to choose between different angular units
610 // in case e.g. a spherical frame is selected.
611 // u = "rad" : angles provided in radians
612 // "deg" : angles provided in degrees
614 // The defaults are f="car" and u="rad".
617 AliVertex::Data(f,u);
619 ///////////////////////////////////////////////////////////////////////////
620 Int_t AliEvent::GetNdevices() const
622 // Provide the number of stored devices
624 if (fDevices) ndevs=fDevices->GetEntries();
627 ///////////////////////////////////////////////////////////////////////////
628 void AliEvent::AddDevice(TObject& d)
630 // Add a device to the event.
633 // In case a private copy is made, this is performed via the Clone() memberfunction.
634 // All devices (i.e. classes derived from TObject) have the default TObject::Clone()
636 // However, devices generally contain an internal (signal) data structure
637 // which may include pointers to other objects. Therefore it is recommended to provide
638 // for all devices a specific copy constructor and override the default Clone()
639 // memberfunction using this copy constructor.
640 // An example for this may be seen from AliCalorimeter.
644 fDevices=new TObjArray();
645 if (fDevCopy) fDevices->SetOwner();
648 // Add the device to this event
651 fDevices->Add(d.Clone());
658 ///////////////////////////////////////////////////////////////////////////
659 void AliEvent::SetDevCopy(Int_t j)
661 // (De)activate the creation of private copies of the added devices.
662 // j=0 ==> No private copies are made; pointers of original devices are stored.
663 // j=1 ==> Private copies of the devices are made and these pointers are stored.
667 // In case a private copy is made, this is performed via the Clone() memberfunction.
668 // All devices (i.e. classes derived from TObject) have the default TObject::Clone()
670 // However, devices generally contain an internal (signal) data structure
671 // which may include pointers to other objects. Therefore it is recommended to provide
672 // for all devices a specific copy constructor and override the default Clone()
673 // memberfunction using this copy constructor.
674 // An example for this may be seen from AliCalorimeter.
676 // Once the storage contains pointer(s) to device(s) one cannot
677 // change the DevCopy mode anymore.
678 // To change the DevCopy mode for an existing AliEvent containing
679 // devices one first has to invoke Reset().
689 cout << " *" << ClassName() << "::SetDevCopy* Invalid argument : " << j << endl;
694 cout << " *" << ClassName() << "::SetDevCopy* Storage already contained devices."
695 << " ==> DevCopy mode not changed." << endl;
698 ///////////////////////////////////////////////////////////////////////////
699 Int_t AliEvent::GetDevCopy() const
701 // Provide value of the DevCopy mode.
702 // 0 ==> No private copies are made; pointers of original devices are stored.
703 // 1 ==> Private copies of the devices are made and these pointers are stored.
706 // In case a private copy is made, this is performed via the Clone() memberfunction.
707 // All devices (i.e. classes derived from TObject) have the default TObject::Clone()
709 // However, devices generally contain an internal (signal) data structure
710 // which may include pointers to other objects. Therefore it is recommended to provide
711 // for all devices a specific copy constructor and override the default Clone()
712 // memberfunction using this copy constructor.
713 // An example for this may be seen from AliCalorimeter.
717 ///////////////////////////////////////////////////////////////////////////
718 TObject* AliEvent::GetDevice(Int_t i) const
720 // Return the i-th device of this event.
721 // The first device corresponds to i=1.
729 Int_t ndevs=GetNdevices();
732 cout << " *" << ClassName() << "::GetDevice* Invalid argument i : " << i
733 << " ndevs = " << ndevs << endl;
738 return fDevices->At(i-1);
742 ///////////////////////////////////////////////////////////////////////////
743 TObject* AliEvent::GetDevice(TString name) const
745 // Return the device with name tag "name"
753 Int_t ndevs=GetNdevices();
754 for (Int_t i=0; i<ndevs; i++)
756 TObject* dev=fDevices->At(i);
760 if (s == name) return dev;
764 return 0; // No matching name found
767 ///////////////////////////////////////////////////////////////////////////
768 TObject* AliEvent::GetIdDevice(Int_t id) const
770 // Return the device with unique identifier "id".
771 if (!fDevices || id<0) return 0;
774 for (Int_t i=0; i<GetNdevices(); i++)
776 TObject* dev=fDevices->At(i);
779 idx=dev->GetUniqueID();
780 if (idx==id) return dev;
783 return 0; // No matching id found
785 ///////////////////////////////////////////////////////////////////////////
786 void AliEvent::ShowDevices(Int_t mode) const
788 // Provide an overview of the available devices.
789 // The argument mode determines the amount of information as follows :
790 // mode = 0 ==> Only printout of the number of devices
791 // 1 ==> Provide a listing with 1 line of info for each device
793 // The default is mode=1.
795 Int_t ndevs=GetNdevices();
800 cout << " There are " << ndevs << " devices available." << endl;
804 cout << " The following " << ndevs << " devices are available :" << endl;
805 for (Int_t i=1; i<=ndevs; i++)
807 TObject* dev=GetDevice(i);
810 const char* name=dev->GetName();
811 cout << " Device number : " << i;
812 cout << " Class : " << dev->ClassName() << " Id : " << dev->GetUniqueID();
813 if (strlen(name)) cout << " Name : " << name;
814 if (dev->InheritsFrom("AliDevice")) cout << " Nhits : " << ((AliDevice*)dev)->GetNhits();
815 if (dev->InheritsFrom("AliSignal")) cout << " Nwaveforms : " << ((AliSignal*)dev)->GetNwaveforms();
823 cout << " No devices present for this event." << endl;
826 ///////////////////////////////////////////////////////////////////////////
827 TObjArray* AliEvent::GetDevices(const char* classname)
829 // Provide the references to the various devices derived from the
831 if (fDevs) fDevs->Clear();
833 Int_t ndev=GetNdevices();
834 for (Int_t idev=1; idev<=ndev; idev++)
836 TObject* obj=GetDevice(idev);
839 if (obj->InheritsFrom(classname))
841 if (!fDevs) fDevs=new TObjArray();
847 ///////////////////////////////////////////////////////////////////////////
848 Int_t AliEvent::GetNhits(const char* classname)
850 // Provide the number of hits registered to the specified device class.
851 // The specified device class has to be derived from AliDevice.
852 // It is possible to indicate with the argument "classname" a specific
853 // device instead of a whole class of devices. However, in such a case
854 // it is more efficient to use the GetDevice() memberfunction directly.
857 if (fHits) nhits=fHits->GetEntries();
860 ///////////////////////////////////////////////////////////////////////////
861 TObjArray* AliEvent::GetHits(const char* classname)
863 // Provide the references to all the hits registered to the specified
865 // The specified device class has to be derived from AliDevice.
866 // It is possible to indicate with the argument "classname" a specific
867 // device instead of a whole class of devices. However, in such a case
868 // it is more efficient to use the GetDevice() memberfunction directly.
872 ///////////////////////////////////////////////////////////////////////////
873 AliSignal* AliEvent::GetIdHit(Int_t id,const char* classname)
875 // Return the hit with unique identifier "id" for the specified device class.
878 Int_t nhits=GetNhits(classname);
879 if (!nhits) return 0;
883 for (Int_t i=0; i<nhits; i++)
885 sx=(AliSignal*)fHits->At(i);
888 sid=sx->GetUniqueID();
889 if (id==sid) return sx;
892 return 0; // No matching id found
894 ///////////////////////////////////////////////////////////////////////////
895 void AliEvent::LoadHits(const char* classname)
897 // Load the references to the various hits registered to the specified
899 // The specified device class has to be derived from AliDevice.
900 if (fHits) fHits->Clear();
902 Int_t ndev=GetNdevices();
903 for (Int_t idev=1; idev<=ndev; idev++)
905 TObject* obj=GetDevice(idev);
908 if (obj->InheritsFrom(classname) && obj->InheritsFrom("AliDevice"))
910 AliDevice* dev=(AliDevice*)GetDevice(idev);
911 Int_t nhits=dev->GetNhits();
914 if (!fHits) fHits=new TObjArray();
915 for (Int_t ih=1; ih<=nhits; ih++)
917 AliSignal* sx=dev->GetHit(ih);
918 if (sx) fHits->Add(sx);
924 ///////////////////////////////////////////////////////////////////////////
925 TObjArray* AliEvent::SortHits(const char* classname,Int_t idx,Int_t mode,Int_t mcal)
927 // Order the references to the various hits registered to the specified
928 // device class. The ordered array is returned as a TObjArray.
929 // A "hit" represents an abstract object which is derived from AliSignal.
930 // The user can specify the index of the signal slot to perform the sorting on.
931 // By default the slotindex will be 1.
932 // Via the "mode" argument the user can specify ordering in decreasing
933 // order (mode=-1) or ordering in increasing order (mode=1).
934 // The default is mode=-1.
935 // Signals which were declared as "Dead" will be rejected.
936 // The gain etc... corrected signals will be used in the ordering process as
937 // specified by the "mcal" argument. The definition of this "mcal" parameter
938 // corresponds to the signal correction mode described in the GetSignal
939 // memberfunction of class AliSignal.
940 // The default is mcal=1 (for backward compatibility reasons).
942 // For more extended functionality see class AliDevice.
944 if (idx<=0 || abs(mode)!=1) return 0;
949 TObjArray* ordered=dev.SortHits(idx,mode,fHits,mcal);
956 if (ordered) fHits=new TObjArray(*ordered);
959 ///////////////////////////////////////////////////////////////////////////
960 TObjArray* AliEvent::SortHits(const char* classname,TString name,Int_t mode,Int_t mcal)
962 // Order the references to the various hits registered to the specified
963 // device class. The ordered array is returned as a TObjArray.
964 // A "hit" represents an abstract object which is derived from AliSignal.
965 // The user can specify the name of the signal slot to perform the sorting on.
966 // In case no matching slotname is found, the signal will be skipped.
967 // Via the "mode" argument the user can specify ordering in decreasing
968 // order (mode=-1) or ordering in increasing order (mode=1).
969 // The default is mode=-1.
970 // Signals which were declared as "Dead" will be rejected.
971 // The gain etc... corrected signals will be used in the ordering process as
972 // specified by the "mcal" argument. The definition of this "mcal" parameter
973 // corresponds to the signal correction mode described in the GetSignal
974 // memberfunction of class AliSignal.
975 // The default is mcal=1 (for backward compatibility reasons).
977 // For more extended functionality see class AliDevice.
979 if (abs(mode)!=1) return 0;
984 TObjArray* ordered=dev.SortHits(name,mode,fHits,mcal);
991 if (ordered) fHits=new TObjArray(*ordered);
994 ///////////////////////////////////////////////////////////////////////////
995 void AliEvent::GetExtremes(const char* classname,Float_t& vmin,Float_t& vmax,Int_t idx,Int_t mode)
997 // Provide the min. and max. signal values of the various hits registered
998 // to the specified device class.
999 // The input argument "idx" denotes the index of the signal slots to be investigated.
1000 // The default is idx=1;
1001 // Signals which were declared as "Dead" will be rejected.
1002 // The gain etc... corrected signals will be used in the process as specified
1003 // by the "mode" argument. The definition of this "mode" parameter corresponds to
1004 // the description provided in the GetSignal memberfunction of class AliSignal.
1005 // The default is mode=1 (for backward compatibility reasons).
1007 // For more extended functionality see class AliDevice.
1011 LoadHits(classname);
1014 dev.GetExtremes(vmin,vmax,idx,fHits,mode);
1016 ///////////////////////////////////////////////////////////////////////////
1017 void AliEvent::GetExtremes(const char* classname,Float_t& vmin,Float_t& vmax,TString name,Int_t mode)
1019 // Provide the min. and max. signal values of the various hits registered
1020 // to the specified device class.
1021 // The input argument "name" denotes the name of the signal slots to be investigated.
1022 // Signals which were declared as "Dead" will be rejected.
1023 // The gain etc... corrected signals will be used in the process as specified
1024 // by the "mode" argument. The definition of this "mode" parameter corresponds to
1025 // the description provided in the GetSignal memberfunction of class AliSignal.
1026 // The default is mode=1 (for backward compatibility reasons).
1028 // For more extended functionality see class AliDevice.
1030 LoadHits(classname);
1033 dev.GetExtremes(vmin,vmax,name,fHits,mode);
1035 ///////////////////////////////////////////////////////////////////////////
1036 void AliEvent::DisplayHits(const char* classname,Int_t idx,Float_t scale,Int_t dp,Int_t mode,Int_t mcol)
1038 // 3D color display of the various hits registered to the specified device class.
1039 // The user can specify the index (default=1) of the signal slot to perform the display for.
1040 // The marker size will indicate the absolute value of the signal (specified by the slotindex)
1041 // as a percentage of the input argument "scale".
1042 // In case scale<0 the maximum absolute signal value encountered in the hit array will be used
1043 // to define the 100% scale. The default is scale=-1.
1044 // In case dp=1 the owning device position will be used, otherwise the hit position will
1045 // be used in the display. The default is dp=0.
1046 // Via the "mcol" argument the user can specify the marker color (see TPolyMarker3D).
1047 // The default is mcol=blue.
1048 // Signals which were declared as "Dead" will not be displayed.
1049 // The gain etc... corrected signals will be used to determine the marker size.
1050 // The gain correction is performed according to "mode" argument. The definition of this
1051 // "mode" parameter corresponds to the description provided in the GetSignal
1052 // memberfunction of class AliSignal.
1053 // The default is mode=1 (for backward compatibility reasons).
1055 // For more extended functionality see class AliDevice.
1059 // Before any display activity, a TCanvas and a TView have to be initiated
1060 // first by the user like for instance
1062 // TCanvas* c1=new TCanvas("c1","c1");
1063 // TView* view=new TView(1);
1064 // view->SetRange(-1000,-1000,-1000,1000,1000,1000);
1065 // view->ShowAxis();
1069 LoadHits(classname);
1071 AliDevice* dev=new AliDevice();
1072 dev->DisplayHits(idx,scale,fHits,dp,mode,mcol);
1081 ///////////////////////////////////////////////////////////////////////////
1082 void AliEvent::DisplayHits(const char* classname,TString name,Float_t scale,Int_t dp,Int_t mode,Int_t mcol)
1084 // 3D color display of the various hits registered to the specified device class.
1085 // The user can specify the name of the signal slot to perform the display for.
1086 // The marker size will indicate the absolute value of the signal (specified by the slotname)
1087 // as a percentage of the input argument "scale".
1088 // In case scale<0 the maximum absolute signal value encountered in the hit array will be used
1089 // to define the 100% scale. The default is scale=-1.
1090 // In case dp=1 the owning device position will be used, otherwise the hit position will
1091 // be used in the display. The default is dp=0.
1092 // The marker size will indicate the percentage of the maximum encountered value
1093 // of the absolute value of the name-specified input signal slots.
1094 // Via the "mcol" argument the user can specify the marker color (see TPolyMarker3D).
1095 // The default is mcol=blue.
1096 // Signals which were declared as "Dead" will not be displayed.
1097 // The gain etc... corrected signals will be used to determine the marker size.
1098 // The gain correction is performed according to "mode" argument. The definition of this
1099 // "mode" parameter corresponds to the description provided in the GetSignal
1100 // memberfunction of class AliSignal.
1101 // The default is mode=1 (for backward compatibility reasons).
1103 // For more extended functionality see class AliDevice.
1107 // Before any display activity, a TCanvas and a TView have to be initiated
1108 // first by the user like for instance
1110 // TCanvas* c1=new TCanvas("c1","c1");
1111 // TView* view=new TView(1);
1112 // view->SetRange(-1000,-1000,-1000,1000,1000,1000);
1113 // view->ShowAxis();
1115 LoadHits(classname);
1117 AliDevice* dev=new AliDevice();
1118 dev->DisplayHits(name,scale,fHits,dp,mode,mcol);
1127 ///////////////////////////////////////////////////////////////////////////
1128 TObjArray* AliEvent::SortDevices(const char* classname,TString name,Int_t mode,Int_t mcal)
1130 // Order the references to the various devices based on hit signals registered
1131 // to the specified device class. The ordered array is returned as a TObjArray.
1132 // A "hit" represents an abstract object which is derived from AliSignal.
1133 // The user can specify the name of the signal slot to perform the sorting on.
1134 // In case no matching slotname is found, the signal will be skipped.
1135 // Via the "mode" argument the user can specify ordering in decreasing
1136 // order (mode=-1) or ordering in increasing order (mode=1).
1137 // The default is mode=-1.
1138 // Signals which were declared as "Dead" will be rejected.
1139 // The gain etc... corrected signals will be used in the ordering process as
1140 // specified by the "mcal" argument. The definition of this "mcal" parameter
1141 // corresponds to the signal correction mode described in the GetSignal
1142 // memberfunction of class AliSignal.
1143 // The default is mcal=1 (for backward compatibility reasons).
1146 TObjArray* ordered=SortHits(classname,name,mode,mcal);
1148 if (!ordered) return 0;
1150 TObjArray* devs=SortDevices(ordered,"*",0,mcal);
1153 ///////////////////////////////////////////////////////////////////////////
1154 TObjArray* AliEvent::SortDevices(const char* classname,Int_t idx,Int_t mode,Int_t mcal)
1156 // Order the references to the various devices based on hit signals registered
1157 // to the specified device class. The ordered array is returned as a TObjArray.
1158 // A "hit" represents an abstract object which is derived from AliSignal.
1159 // The user can specify the index of the signal slot to perform the sorting on.
1160 // By default the slotindex will be 1.
1161 // Via the "mode" argument the user can specify ordering in decreasing
1162 // order (mode=-1) or ordering in increasing order (mode=1).
1163 // The default is mode=-1.
1164 // Signals which were declared as "Dead" will be rejected.
1165 // The gain etc... corrected signals will be used in the ordering process as
1166 // specified by the "mcal" argument. The definition of this "mcal" parameter
1167 // corresponds to the signal correction mode described in the GetSignal
1168 // memberfunction of class AliSignal.
1169 // The default is mcal=1 (for backward compatibility reasons).
1172 TObjArray* ordered=SortHits(classname,idx,mode,mcal);
1174 if (!ordered) return 0;
1176 TObjArray* devs=SortDevices(ordered,0,0,mcal);
1179 ///////////////////////////////////////////////////////////////////////////
1180 TObjArray* AliEvent::SortDevices(TObjArray* hits,TString name,Int_t mode,Int_t mcal)
1182 // Order the references to the various devices based on hit signals contained
1183 // in the input array. The ordered array is returned as a TObjArray.
1184 // A "hit" represents an abstract object which is derived from AliSignal.
1185 // The user can specify the name of the signal slot to perform the sorting on.
1186 // In case no matching slotname is found, the signal will be skipped.
1187 // Via the "mode" argument the user can specify ordering in decreasing
1188 // order (mode=-1), ordering in increasing order (mode=1) or no ordering (mode=0).
1189 // The latter option provides a means to quickly obtain an ordered devices list
1190 // when the hits in the array were already ordered by the user. In this case
1191 // the input argument "name" is irrelevant.
1192 // The default is mode=-1.
1193 // Signals which were declared as "Dead" will be rejected.
1194 // The gain etc... corrected signals will be used in the ordering process as
1195 // specified by the "mcal" argument. The definition of this "mcal" parameter
1196 // corresponds to the signal correction mode described in the GetSignal
1197 // memberfunction of class AliSignal.
1198 // The default is mcal=1 (for backward compatibility reasons).
1201 if (!hits) return 0;
1203 TObjArray* ordered=hits;
1205 if (mode) ordered=dev.SortHits(name,mode,hits,mcal);
1207 if (!ordered) return 0;
1215 fOrdered=new TObjArray();
1218 Int_t nhits=ordered->GetEntries();
1220 for (Int_t ih=0; ih<nhits; ih++)
1222 AliSignal* sx=(AliSignal*)ordered->At(ih);
1224 AliDevice* dx=sx->GetDevice();
1226 for (Int_t id=0; id<fOrdered->GetEntries(); id++)
1228 AliDevice* odx=(AliDevice*)fOrdered->At(id);
1235 if (!exist) fOrdered->Add(dx);
1239 ///////////////////////////////////////////////////////////////////////////
1240 TObjArray* AliEvent::SortDevices(TObjArray* hits,Int_t idx,Int_t mode,Int_t mcal)
1242 // Order the references to the various devices based on hit signals contained
1243 // in the input array. The ordered array is returned as a TObjArray.
1244 // A "hit" represents an abstract object which is derived from AliSignal.
1245 // The user can specify the index of the signal slot to perform the sorting on.
1246 // By default the slotindex will be 1.
1247 // Via the "mode" argument the user can specify ordering in decreasing
1248 // order (mode=-1), ordering in increasing order (mode=1) or no ordering (mode=0).
1249 // The latter option provides a means to quickly obtain an ordered devices list
1250 // when the hits in the array were already ordered by the user. In this case
1251 // the input argument "idx" is irrelevant.
1252 // The default is mode=-1.
1253 // Signals which were declared as "Dead" will be rejected.
1254 // The gain etc... corrected signals will be used in the ordering process as
1255 // specified by the "mcal" argument. The definition of this "mcal" parameter
1256 // corresponds to the signal correction mode described in the GetSignal
1257 // memberfunction of class AliSignal.
1258 // The default is mcal=1 (for backward compatibility reasons).
1261 if (!hits) return 0;
1263 TObjArray* ordered=hits;
1265 if (mode) ordered=dev.SortHits(idx,mode,hits,mcal);
1267 if (!ordered) return 0;
1275 fOrdered=new TObjArray();
1278 Int_t nhits=ordered->GetEntries();
1280 for (Int_t ih=0; ih<nhits; ih++)
1282 AliSignal* sx=(AliSignal*)ordered->At(ih);
1284 AliDevice* dx=sx->GetDevice();
1286 for (Int_t id=0; id<fOrdered->GetEntries(); id++)
1288 AliDevice* odx=(AliDevice*)fOrdered->At(id);
1295 if (!exist) fOrdered->Add(dx);
1299 ///////////////////////////////////////////////////////////////////////////
1300 TObject* AliEvent::Clone(const char* name) const
1302 // Make a deep copy of the current object and provide the pointer to the copy.
1303 // This memberfunction enables automatic creation of new objects of the
1304 // correct type depending on the object type, a feature which may be very useful
1305 // for containers when adding objects in case the container owns the objects.
1306 // This feature allows to store either AliEvent objects or objects derived from
1307 // AliEvent via some generic AddEvent memberfunction, provided these derived
1308 // classes also have a proper Clone memberfunction.
1310 AliEvent* evt=new AliEvent(*this);
1313 if (strlen(name)) evt->SetName(name);
1317 ///////////////////////////////////////////////////////////////////////////