class AliITSInitGeometry: public TObject

 AliITSgeomS?D class, or AliITSsegmentation
 class in fShape of AliITSgeom class.
 Default Creator
 Inputs:
   none.
 Outputs:
   none.
 Return:
   A default inilized AliITSInitGeometry object

 AliITSgeomS?D class, or AliITSsegmentation
 class in fShape of AliITSgeom class.
 Default Creator
 Inputs:
   none.
 Outputs:
   none.
 Return:
   A default inilized AliITSInitGeometry object

 Creates and Initilizes the geometry transformation class AliITSgeom
 to values appropreate to this specific geometry. Now that
 the segmentation is part of AliITSgeom, the detector
 segmentations are also defined here.
 Inputs:
   none.
 Outputs:
   none.
 Return:
   A pointer to a new properly inilized AliITSgeom class. If
   pointer = 0 then failed to init.

 Creates and Initilizes the geometry transformation class AliITSgeom
 to values appropreate to this specific geometry. Now that
 the segmentation is part of AliITSgeom, the detector
 segmentations are also defined here.
 Inputs:
   Int_t major   major version, see AliITSVersion_t

 Outputs:
   none.
 Return:
   A pointer to a new properly inilized AliITSgeom class. If
   pointer = 0 then failed to init.

 Initilizes the geometry transformation class AliITSgeom
 to values appropreate to this specific geometry. Now that
 the segmentation is part of AliITSgeom, the detector
 segmentations are also defined here.
 Inputs:
   AliITSgeom *geom  A pointer to the AliITSgeom class
 Outputs:
   AliITSgeom *geom  This pointer recreated and properly inilized.
 Return:
   none.

 Transpose the rotation matrix part of a TGeoHMatrix. This
 is needed because TGeo stores the transpose of the rotation
 matrix as compared to what AliITSgeomMatrix uses (and Geant3).
 Inputs:
    TGeoHMatrix *m  The matrix to be transposed
 Outputs:
    TGEoHMatrix *m  The transposed matrix
 Return:
    none.

 Initilizes the geometry transformation class AliITSgeom
 Now that the segmentation is part of AliITSgeom, the detector
 segmentations are also defined here.

 Inputs:
   AliITSgeom *geom  A pointer to the AliITSgeom class
 Outputs:
   AliITSgeom *geom  This pointer recreated and properly inilized.
 LG

 Returns the Transformation matrix between the volume specified
 by the path volumePath and the Top or mater volume. The format
 of the path volumePath is as follows (assuming ALIC is the Top volume)
 "/ALIC_1/DDIP_1/S05I_2/S05H_1/S05G_3". Here ALIC is the top most
 or master volume which has only 1 instance of. Of all of the daughter
 volumes of ALICE, DDIP volume copy #1 is indicated. Similarly for
 the daughter volume of DDIP is S05I copy #2 and so on.
 Inputs:
   TString& volumePath  The volume path to the specific volume
                        for which you want the matrix. Volume name
                        hierarchy is separated by "/" while the
                        copy number is appended using a "_".
 Outputs:
  TGeoHMatrix &mat      A matrix with its values set to those
                        appropriate to the Local to Master transformation
 Return:
   A logical value if kFALSE then an error occurred and no change to
   mat was made.
 We have to preserve the modeler state
 Preserve the modeler state.

 Returns the shape and its parameters for the volume specified
 by volumeName.
 Inputs:
   TString& volumeName  The volume name
 Outputs:
   TString &shapeType   Shape type
   TArrayD &par         A TArrayD of parameters with all of the
                        parameters of the specified shape.
 Return:
   A logical indicating whether there was an error in getting this
   information

 decode geometry into detector module number. There are two decoding
 Scheams. Old which does not follow the ALICE coordinate system
 requirements, and New which dose.
 Inputs:
    Int_t layer    The ITS layer
    Int_t cpn0     The lowest copy number
    Int_t cpn1     The middle copy number
    Int_t cpn2     the highest copy number
 Output:
    Int_t &mod     The module number assoicated with this set
                   of copy numbers.
 Return:
    none.
 This is a FIXED switch yard function. I (Bjorn Nilsen) Don't
 like them but I see not better way for the moment.

 decode geometry into detector module number. There are two decoding
 Scheams. Old which does not follow the ALICE coordinate system
 requirements, and New which dose.
 Inputs:
    Int_t mod      The module number assoicated with this set
                   of copy numbers.
 Output:
    Int_t cpn0     The lowest copy number
    Int_t cpn1     The middle copy number
    Int_t cpn2     the highest copy number
 Return:
    none.
 This is a FIXED switch yard function. I (Bjorn Nilsen) Don't
 like them but I see not better way for the moment.

 decode geometry into detector module number. There are two decoding
 Scheams. Old which does not follow the ALICE coordinate system
 requirements, and New which dose. Note, this use of layer ladder
 and detector numbers are strictly for internal use of this
 specific code. They do not represent the "standard" layer ladder
 or detector numbering except in a very old and obsoleate sence.
 Inputs:
    Int_t mod      The module number assoicated with this set
                   of copy numbers.
 Output:
    Int_t lay     The layer number
    Int_t lad     The ladder number
    Int_t det     the dettector number
 Return:
    none.
 This is a FIXED switch yard function. I (Bjorn Nilsen) Don't
 like them but I see not better way for the moment.

 decode geometry into detector module number
 Inputs:
    Int_t layer    The ITS layer
    Int_t cpn0     The lowest copy number
    Int_t cpn1     The middle copy number
    Int_t cpn2     the highest copy number
 Output:
    Int_t &mod     The module number assoicated with this set
                   of copy numbers.
 Return:
    none.

 decode geometry into detector module number using the new decoding
 Scheme.
 Inputs:
    Int_t mod      The module number assoicated with this set
                   of copy numbers.
 Output:
    Int_t cpn0     The lowest copy number  (SPD sector or SDD/SSD ladder)
    Int_t cpn1     The middle copy number  (SPD stave or SDD/SSD module)
    Int_t cpn2     the highest copy number (SPD ladder or 1 for SDD/SSD)
 Return:
    none.

 decode module number into detector indices for v11
 mod starts from 0
 lay, lad, det start from 1
 Inputs:
    Int_t mod      The module number associated with this set
                   of copy numbers.
 Output:
    Int_t lay     The layer number
    Int_t lad     The ladder number
    Int_t det     the dettector number

 fills the string str with the major version number
 Inputs:
   Char_t *str          The character string to hold the major version number
   Int_t  length        The maximum number of characters which
                        can be accommodated by this string.
                        str[length-1] must exist
   AliITSVersion_t maj  The major number

 fills the string str with the major and minor version number
 Inputs:
   Char_t *str   The character string to holding the major version number
   Int_t  length The maximum number of characters which can be
                 accommodated by this string. str[length-1] must exist
 Outputs:
   AliITSVersion_t maj  The major number

 Getters and Setters
 Getters and Setters

 Set debug level. debug=0 no debug info outputted.

 Retrun debug value

 Decode module number into old layer, ladder, and detector numbers