-/**************************************************************************
- * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
- * *
- * Author: The ALICE Off-line Project. *
- * Contributors are mentioned in the code where appropriate. *
- * *
- * Permission to use, copy, modify and distribute this software and its *
- * documentation strictly for non-commercial purposes is hereby granted *
- * without fee, provided that the above copyright notice appears in all *
- * copies and that both the copyright notice and this permission notice *
- * appear in the supporting documentation. The authors make no claims *
- * about the suitability of this software for any purpose. It is *
- * provided "as is" without express or implied warranty. *
- **************************************************************************/
-
-/* $Id$ */
+$Id$
==========================================================
Please add to this README file all information concerning
==========================================================
How to check that your aliroot is working well
==========================================================
-There is a script file AlirootRun_MUONtest.script which
+There is a script file AlirootRun_MUONtest.sh which
allows for simulating, reconstructing and making the
invariant analysis of the generated Upsilon (1S).
The used configuration file is Config.C in MUON
directory.
-There you have to type :
+You have to type :
+source $ALICE_ROOT/MUON/AlirootRun_MUONtest.sh
+The results of this test are saved in test_out/ directory.
+Please note that the CDB (Condition DataBase) is now always *required*
+to perform either simulation or reconstruction. For the moment, a version
+ of that CDB is stored in CVS, so you should have one already in MUON/Calib
+subdirectories.
-source $ALICE_ROOT/MUON/AlirootRun_MUONtest.script
+==========================================================
+ How to check that your aliroot is working VERY well
+==========================================================
+There is a script file AlirootRun_MUONlongtest.sh which
+allows for simulating, reconstructing and making the
+-+invariant analysis of the generated Upsilon (1S).
+This script generates a large number of Upsilon (20k)
+in order to access differential quantities.
+The used configuration file is Config.C in MUON
+directory.
+One should really run this script to check if the MUON
+code can process a large number of events WITHOUT errors,
+in particular before making important commits !!
+
+You have to type :
+$ALICE_ROOT/MUON/AlirootRun_MUONtestlong.sh
+The results of this test are saved in testlong_out/ directory
+and will be kept in CVS
-If you do not recover a few Upsilons in their mass region
-in the file MUONmassPlot.root
+(NOTE: the macros performing the calculations/plots MUONefficiency.C
+and MUONplotEfficiency.C are also able to handle J/Psi if
+Config.C is modified accordingly )
==========================================================
How to run a MUON generation
root [0] gAlice->SetConfigFunction("Config( \"/home/martinez/aliroot/work_NewIO/test/\" , \"box\" );");
============================================================
- How to run MUONCheck macro
+ How to dump the content of Root data files
============================================================
-To check the content of a root data file, the MUONCheck
-provides a ascii output on screen.
-
-To compile MUONCheck.C
-.includepath $ALICE_ROOT/STEER
-.includepath $ALICE_ROOT/MUON
-.includepath $ALICE_ROOT/MUON/mapping
-.L $ALICE_ROOT/MUON/MUONCheck.C++
-To Load
-gSystem->Load("$ALICE_ROOT/MUON/MUONCheck_C.so")
-
-To print Kine : (default file is galice.root )
-MUONkine() or MUONkine("galice.root",##) for the event number ##
-
-To print hits : (default file is galice.root if not MUONhits("toto.root""); )
-MUONhits() or MUONhits("galice.root",##) for the event number ##
+To check the content of Root data files, the AliMUONData class
+provides the functions to produce an ASCII output on the screen
+which can be redirected on the file:
-To print digits : (default file is galice.root)
-MUONdigits() or MUONdigits("galice.root",##) for the event number ##
-
-To print rawcluster : (default file is galice.root)
-MUONrecpoints() or MUONrecpoints("galice.root",##) for the event number ##
+aliroot
+root [0] AliMUONData data("galice.root");
+root [1] data.DumpKine(5); > dump.kine
+root [2] data.DumpHits(5); > dump.hits
+root [3] data.DumpDigits(5); > dump.digits
+root [4] data.DumpSDigits(5); > dump.sdigits
+root [5] data.DumpRecPoints(5); > dump.recpoints
+root [6] data.DumpRecTrigger(5); > dump.rectrigger
-To print trigger : (default file is galice.root)
-MUONTestTrigger() or MUONTestTrigger("galice.root",##) for the event number ##
+If the event number in the function argument is not specified,
+data are dumped for all events.
-....
============================================================
- How to check the Geometry
+ How to check the Geometry with the new Geometrical modeler
+ ftp://root.cern.ch/root/doc/chapter16.pdf
+ http://agenda.cern.ch/fullAgenda.php?ida=a05212
============================================================
gAlice->Init("$ALICE_ROOT/MUON/Config.C");
-.L $ALICE/geant3/TGeant3/G3GUI.C
-G3GUI()
+gGeoManager->GetMasterVolume()->Draw();
+
============================================================
- How to check the Geometry with the new Geometrical modeler
+ How to check the overlap with the new Geometrical modeler
ftp://root.cern.ch/root/doc/chapter16.pdf
http://agenda.cern.ch/fullAgenda.php?ida=a05212
============================================================
gAlice->Init("$ALICE_ROOT/MUON/Config.C");
-gGeoManager->GetMasterVolume()->Draw();
-
+gGeoManager->CheckOverlaps();
+gGeoManager->PrintOverlaps();
============================================================
How to run MUONdisplay
use RKUTA to get the optimal mass resolution of the
spectrometer. The choice of HELIX or RKUTA is done in the
config file when the magnetic field is defined:
- AliMagFMaps* field = new AliMagFMaps("Maps","Maps", TRACKING, FACTOR, MAXB, AliMagFMaps::k4kG);
+ AliMagFMaps* field = new AliMagFMaps("Maps","Maps", TRACKING, FACTOR, MAXB, AliMagFMaps::k5kG);
gAlice->SetField(field);
TRACKING must be 1 for RKUTA and 2 for HELIX (the default value for aliroot is 2 (HELIX))
FACTOR allows you to set the magnetic field to 0, just putting FACTOR=0. Default value is 1.
the muon rawdata generation
aliroot -b << EOF
AliSimulation MuonSim("$ALICE_ROOT/MUON/Config.C")
+MuonSim.SetMakeTrigger("MUON");
MuonSim.SetWriteRawData("MUON")
MuonSim.Run(10)
.q
MuonRec.SetRunLocalReconstruction("MUON");
MuonRec.SetRunTracking("");
MuonRec.SetFillESD("MUON");
-MuonRec.SetOption("MUON", "AZ Kalman"); // to use AZ clustering and Kalman filter
-MuonRec.Run();
+MuonRec.SetOption("MUON", "VS"); // to use VS cluster finder
+// MuonRec.SetOption("MUON", "VS Original"); // to run VS and original track finder
+// MuonRec.SetOption("MUON", "Combi"); // to run combined cluster / track finder
+MMuonRec.Run();
.q
EOF
+============================================================
+ How to read & decode raw data
+============================================================
+These macros can read & decode DDL files, root and DATE files.
+Nevertheless for the two latter, aliroot has to be compiled with DATE.
+
+For tracker raw data
+.includepath $ALICE_ROOT/STEER
+.includepath $ALICE_ROOT/MUON
+.includepath $ALICE_ROOT/RAW
+.L $ALICE_ROOT/MUON/MUONRawStreamTracker.C+
+MUONRawStreamTracker(maxEvent, firstDDL, lastDDL, rawFileName)
+
+For trigger raw data
+.includepath $ALICE_ROOT/STEER
+.includepath $ALICE_ROOT/MUON
+.includepath $ALICE_ROOT/RAW
+.L $ALICE_ROOT/MUON/MUONRawStreamTrigger.C+
+MUONRawStreamTrigger(maxEvent, firstDDL, lastDDL, rawFileName)
+
+Default wise the macro read all DDL files from the current directory for 1000 events.
+For root file rawFileName must end with .root, for date file rawFileName
+must be no extention. For DDL files you have to specified the directory
+where the raw0...n subdirectories are located:
+MUONRawStreamTracker(maxEvent, "$YOUR_WORKING_DIRECTORY/"); //Do not forget the slash at the end!
============================================================
Macro MUONGenerateGeometryData.C
===========================================================
-Macro for generating the geometry data files:
-(transform_*.dat, svmap_*.dat).
-- MUON/data/transform_*dat files contain all the information
-about the transformation (traslation + rotation) needed for
-the positionning of each detection element of the MUON
-spectrometer.
-- MUON/data/svmap_*.dat files contain all the information to link
+Macro for generating the geometry data files
+and mis-alignment data.
+
+Geometry data files:
+- MUON/data/volpath.dat file contains the volume paths
+for all alignable objects (modules & detection
+elements).
+- MUON/data/transform.dat file contains the transformations
+data (translation and rotation) for all alignable objects
+(modules & detection elements)
+- MUON/data/svmap.dat file contains all the information to link
each geant volume (it can be extended to other virtual MC) with
a detection element. The point here is that a given detection
-element, i.e. a slat chamber consists of many geant volumes.
+element, i.e. a slat chamber can consist of more geant volumes.
the correspondence is then defined in an input file.
-Eanch time there is a change in the virtual MC geometry, these
+Each time there is a change in the definition of MC geometry, these
input files must be re-generated via the macro
MUONGenerateGeometryData.C
The generated files do not replace the existing ones
but have different names (with extension ".out").
-To compare/replace the existing files with generated ones
-run the scripts in MUON/data:
-compare_data.sh [transform] [svmap ]
-reset_data.sh [transform] [svmap ]
-Author: I. Hrivnacova, IPN Orsay
+Replacement with new files has to be done manually.
+
+If the appropiate flags are set (zeroAlign, resMisAlign and/or fullMisAlign)
+zero, residual and/or full misalignment data are generated in a
+local CDB folder (defaults are ResMisAlignCDB and FullMisAlignCDB
+in the working directory). Inside the local CDB the path for the
+alignment data is (and must be) "MUON/Align/Data/".
+Residual misalignment: Default is our current estimate of
+misalignment after all our alignment procedure has been applied.
+Full misalignment: Default is our current estimate of initial
+misalignment.
+
+==========================================================
+How to simulate events with misaligned geometry in local CDB
+==========================================================
+
+If you want to use a misaligned geometry to simulate some
+events you can use a local CDB. For this need to follow
+the next steps:
+
+- Generate misaligned data in local CDB.
+You can use MUONGenerateGeometryData.C as described above in
+the corresponding section. Let's assume you used the default
+residual misalignment settings, then you have a local CDB in
+your working directory called ResMisAlignCDB containing
+misalignement data (ResMisAlignCDB/MUON/Align).
+
+- Tell AliSimulation you want to use your local CDB for
+MUON/Align/Data
+To do this you need to instantiate the AliCDBManager, set the
+default storage and set the specific storage for MUON/Align/Data,
+before instantiating AliSimulation (see for example the commented
+lines AlirootRun_MUONtest.sh).
+
+aliroot -b >& testSim.out << EOF
+AliCDBManager* man = AliCDBManager::Instance();
+man->SetDefaultStorage("local://$ALICE_ROOT");
+man->SetSpecificStorage("MUON/align/Data","local://ResMisAlignCDB");
+AliSimulation MuonSim("$ALICE_ROOT/MUON/Config.C");
+MuonSim.SetWriteRawData("MUON");
+MuonSim.Run(10);
+.q
+EOF
+
+==========================================================
+How to check the alignment software
+==========================================================
+
+The script AlirootRun_MUONtestAlign.sh allows you to check the software for
+the alignment with physics tracks. The script will:
+- Generate a misaligned geometry in a local CDB (default FullMisAlignCDB)
+- Simulate 1000 events using previously misaligned geometry
+- Reconstruct the events using perfect geometry
+- Run the alignment code over the above events using MUONAlignment.C
+
+To run you need to type:
+$ALICE_ROOT/MUON/AlirootRun_MUONtestAlign.sh
+The results of the test are saved in test_align/ directory. The file measShifts.root
+contains useful graphs for studying the alignment performances. A local CDB
+containing the realigned geometry is also created (default is ReAlignCDB). The
+file $ALICE_ROOT/MUON/data/transform2ReAlign.dat contains the
+transformations describing the realigned geometry to be compared with the
+used misaligned geometry $ALICE_ROOT/MUON/data/transform2.dat.
+
+IMPORTANT NOTE: For a useful test of the alignment performances, the
+order of 100 000 tracks is needed, it is then advisable to generate and
+reconstruct enough events separately and run MUONAlignment.C providing a file list
+afterwards.
+
+==========================================================
+ How to Merge events
+==========================================================
+
+You can merge 2 types of simulated events. For example,
+you can simulate Hijing events, and then simulate muons
+merging both.
+
+Merging is done at the sdigits level, so Kinematics files
+of the merged events will just correspond to the
+Config.C simulated file (not to Config_HIJING.C).
+
+You must, first, do the Hijing simulation and store it
+in directory $HIJING_SIM. Note that for merging you
+won't need Kinematics files of the Hijing simulation...
+
+Hijing simulation
+
+aliroot -b << EOF
+AliSimulation HijingSim("$HIJING_SIM/Config_HIJING.C")
+HijingSim.Run(5)
+.q
+EOF
+
+
+Then you can do muon simulation and reconstruction
+merging both simulated events. In next example, we are
+merging 20 times each Hijing event in order to simulate
+100 muons merged with 5 Hijing events.
+
+
+aliroot -b << EOF
+AliSimulation MuonSim("$ALICE_ROOT/MUON/Config.C")
+MuonSim.MergeWith("$HIJING_SIM/galice.root",20) //parameters are the Hijing simulation file and the number of times we use each Hijing event
+MuonSim.Run(100) // number of muon (Config.C) events
+.q
+EOF
+
+
+aliroot -b << EOF
+TPluginManager * pluginmanager = gROOT->GetPluginManager()
+pluginmanager->AddHandler("AliReconstructor","MUON","AliMUONReconstructor","MUON","AliMUONReconstructor()")
+AliReconstruction MuonRec("galice.root")
+MuonRec.SetRunTracking("")
+MuonRec.SetRunVertexFinder(kFALSE)
+MuonRec.SetRunLocalReconstruction("MUON")
+MuonRec.SetFillESD("MUON")
+MuonRec.Run()
+.q
+EOF
+
+==========================================================
+ How to play with the CDB
+==========================================================
+
+If you'd like to see how the CDB is created, please have a look at the
+MUONCDB.C (work in progress, though).
+
+==========================================================
+...on track numbering
+==========================================================
+
+All generated particles, including primary and secondary
+particles are put on the stack. The secondary particles are kept
+in the stack only if they gave a hit in *any* of the ALICE detectors
+The number of all particles placed on the stack for a given event
+can be obtained with
+Int_t nPart = AliStack::GetNtrack();
+Looping from 0 to nPart via AliStack::Particle(ipart)
+gives the particle listing as obtained from the particle generator (primaries)
+and Monte Carlo (secondaries).
+
+The particle response in the detector, a hit, is registered
+in the hits tree and the hits are filled with each primary track.
+The total number of "tracks" (fills of the tree) can be obtained
+with ntracks = AliMUONData::GetNtracks() and is usually smaller than "nPart".
+Since particles can also deposit hits in other detectors than
+the MUON spectrometer, there will be many "tracks" (fills) in the hit-tree
+without a hit in MUON.
+
+The correspondence between "track ID" in the hits-tree ("itr") and the
+particle ID for particles on the stack (i.e. generated particles) can be
+obtained via:
+for (Int_t itr = 0; itr < ntracks; itr++) {
+ MUONData->GetTrack(itr); //track "itr" of the hits-tree
+ Int_t nhitstot = MUONData->Hits()->GetEntriesFast();
+ AliMUONHit* mHit;
+ for (Int_t ihit=0; ihit<nhitstot; ihit++) {
+ mHit = static_cast<AliMUONHit*>(MUONData->Hits()->At(ihit));
+ Int_t id = muonHit->Track(); //gives particle ID on stack
+ TParticle* particle = gAlice->Stack()->Particle(id);
+ }
+}
+
+During the procedure to go from hits to digits, the hits
+are summed up such that more than one track can contribute
+to a given digit. As a consequence the method
+Int_t AliMUONDigit::Track(Int_t trackID)
+takes an argument, where "trackID" runs from 0 to
+AliMUONDigit::Ntracks() to provide the reference to *all*
+tracks that contributed to it. The returned track ID is the one
+referred to in the hit-tree. To know which is the generated particle
+that deposited a given digit one has to follow the sequence of the kind:
+
+
+mDigit = static_cast<AliMUONDigit*>(digits->At(idigit));
+for (int tr = 0; tr < mDigit->Ntracks(); tr++){
+ Int_t hitTrackID = mDigit->Track(tr);
+ MUONData->GetTrack(hitTrackID);
+ mHit = static_cast<AliMUONHit*>(MUONData->Hits()->At(0));
+ //just take first hit of given track
+ Int_t numPart = mHit->Track(); //gives ID of particle on the stack
+ Int_t idTrack = mHit->Particle(); //gives flavour code of the particle
+}
+In this example, for simplicity, only the first hit of a
+hit-track is used to check the particle ID.
+
+==========================================================
+Macro to process PDC06 preproduction
+==========================================================
+
+To read a generation/reconstrution from PDC06 preproduction, and write a file
+with a tree of AliMUONTrackLight / AliMUONPairLight :
+go to the directory containing the generation/reconstruction. From there run
+aliroot
+.x DecodeRecoCocktail.C+
+.q
+
+To read the file previously generated:
+aliroot
+.x ReadRecoCocktail.C+
+.q
===========================================================
Still working ..............
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff