class AliSimulation: public TNamed

 create simulation object with default parameters

 clean up

 set the number of events for one run

 activate a default CDB storage
 First check if we have any CDB storage set, because it is used
 to retrieve the calibration and alignment constants

 activate a default CDB storage
 First check if we have any CDB storage set, because it is used
 to retrieve the calibration and alignment constants

 check run number. If not set, set it to 0 !!!!

 Set CDB lock: from now on it is forbidden to reset the run number
 or the default storage or to activate any further storage!

 Store the desired default CDB storage location
 Activate it later within the Run() method

 Store the desired default CDB storage location
 Activate it later within the Run() method

 Store a detector-specific CDB storage location
 Activate it later within the Run() method

 sets run number
 Activate it later within the Run() method

 sets seed number
 Activate it later within the Run() method

 Set the CDB manager run number
 The run number is retrieved from gAlice

 set the name of the config file

 set the name of the galice file
 the path is converted to an absolute one if it is relative

 set the number of events per file for the given detector and data type
 ("Hits", "Summable Digits", "Digits", "Reconstructed Points" or "Tracks")

 Read the alignment objects from CDB.
 Each detector is supposed to have the
 alignment objects in DET/Align/Data CDB path.
 All the detector objects are then collected,
 sorted by geometry level (starting from ALIC) and
 then applied to the TGeo geometry.
 Finally an overlaps check is performed.

 add a file with background events for merging

 add a file with background events for embeddin

 run the generation, simulation and digitization

 Generates lego plots of:
    - radiation length map phi vs theta
    - radiation length map phi vs eta
    - interaction length map
    - g/cm2 length map

  ntheta    bins in theta, eta
  themin    minimum angle in theta (degrees)
  themax    maximum angle in theta (degrees)
  nphi      bins in phi
  phimin    minimum angle in phi (degrees)
  phimax    maximum angle in phi (degrees)
  rmin      minimum radius
  rmax      maximum radius


  The number of events generated = ntheta*nphi
  run input parameters in macro setup (default="Config.C")

  Use macro "lego.C" to visualize the 3 lego plots in spherical coordinates

 run the trigger

 Writes the CTP (trigger) DDL raw data
 Details of the format are given in the
 trigger TDR - pages 134 and 135.

 run the generation and simulation

 Execute Config.C

 run the digitization and produce summable digits

 run the digitization and produce digits from sdigits

 run the digitization and produce digits from hits

 convert the digits to raw data
 First DDL raw data files for the given detectors are created.
 If a file name is given, the DDL files are then converted to a DATE file.
 If deleteIntermediateFiles is true, the DDL raw files are deleted
 afterwards.
 If the file name has the extension ".root", the DATE file is converted
 to a root file.
 If deleteIntermediateFiles is true, the DATE file is deleted afterwards.
 'selrawdata' flag can be used to enable writing of detectors raw data
 accoring to the trigger cluster.

 convert the digits to raw data DDL files

 convert raw data DDL files to a DATE file with the program "dateStream"
 The second argument is not empty when the user decides to write
 the detectors raw data according to the trigger cluster.

 convert a DATE file to a root file with the program "alimdc"

 delete existing run loaders, open a new one and load gAlice

 get or calculate the number of signal events per background event

 check whether detName is contained in detectors
 if yes, it is removed from detectors

 Steering routine  to convert raw data in directory rawDirectory/ to fake SDigits.
 These can be used for embedding of MC tracks into RAW data using the standard
 merging procedure.

 If an ESD file is given the reconstructed vertex is taken from it and stored in the event header.

 Called at the end of the run.

 return the detector index corresponding to detector

 Init the HLT simulation.
 The function  loads the library and creates the instance of AliHLTSimulation.
 the main reason for the decoupled creation is to set the transient OCDB
 objects before the OCDB is locked

 Run the HLT simulation
 HLT simulation is implemented in HLT/sim/AliHLTSimulation
 Disabled if fRunHLT is empty, default vaule is "default".
 AliSimulation::SetRunHLT can be used to set the options for HLT simulation
 The default simulation depends on the HLT component libraries and their
 corresponding agents which define components and chains to run. See
 http://web.ift.uib.no/~kjeks/doc/alice-hlt-current
 http://web.ift.uib.no/~kjeks/doc/alice-hlt-current/classAliHLTModuleAgent.html

 The libraries to be loaded can be specified as an option.
 <pre>
 AliSimulation sim;
 sim.SetRunHLT("libAliHLTSample.so");
 </pre>
 will only load <tt>libAliHLTSample.so</tt>

 run the QA on summable hits, digits or digits

 Allows to run QA for a selected set of detectors
 and a selected set of tasks among HITS, SDIGITS and DIGITS
 all selected detectors run the same selected tasks

 Extract run number and random generator seed from env variables

 Get the necessary information from galice (generator, trigger etc) and
 write a GRP entry corresponding to the settings in the Config.C used
 note that Hall probes and Cavern and Surface Atmos pressures are not simulated.

 Generate event time-stamp according to
 SOR/EOR time from GRP

 write in galice.root maps with used CDB paths

 Sets the name of the file from which the geometry is loaded

 HLT