class AliITSUv1: public AliITSU

    Standard default constructor
 Inputs:
   none.
 Outputs:
   none.
 Return:
   none.

    Standard constructor for the Upgrade geometry.
 Inputs:
   const char * name   Ignored, set to "ITS"
   const char * title  Arbitrary title
   const Int_t nlay    Number of layers

    Standard destructor
 Inputs:
   none.
 Outputs:
   none.
 Return:
   none.

 Creates entries for alignable volumes associating the symbolic volume
 name with the corresponding volume path.

 Records in the alignable entries the transformation matrices converting
 TGeo local coordinates (in the RS of alignable volumes) to the tracking
 system
 For this, this function has to run before the misalignment because we
 are using the ideal positions in the AliITSgeom object.

 add alignable volumes for layer and its daughters

 add alignable volumes for stave and its daughters

 add alignable volumes for halfstave (if any) and its daughters

 add alignable volumes for module (if any) and its daughters

 add alignable volumes for chip

 book arrays for wrapper volumes

 set parameters of id-th wrapper volume

 Creates the Service Barrel (as a simple cylinder) for IB and OB
 Inputs:
         innerBarrel : if true, build IB service barrel, otherwise for OB
         dest        : the mother volume holding the service barrel
         mgr         : the gGeoManager pointer (used to get the material)

 Create ITS materials
     This function defines the default materials used in the Geant
 Monte Carlo simulations for the geometries AliITSv1, AliITSv3,
 AliITSv11Hybrid.
 In general it is automatically replaced by
 the CreateMaterials routine defined in AliITSv?. Should the function
 CreateMaterials not exist for the geometry version you are using this
 one is used. See the definition found in AliITSv5 or the other routine
 for a complete definition.
 Inputs:
   none.
 Outputs:
   none.
 Return:
   none.

     Sets the layer parameters
 Inputs:
          nlay    layer number
          phi0    layer phi0
          r       layer radius
          zlen    layer length
          nstav   number of staves
          nunit   IB: number of chips per stave
                  OB: number of modules per half stave
          lthick  chip thickness (if omitted, defaults to 0)
          dthick  sensor thickness (if omitted, defaults to 0)
          dettypeID  ??
          buildLevel (if 0, all geometry is build, used for material budget studies)
 Outputs:
   none.
 Return:
   none.

     Sets the layer parameters for a "turbo" layer
     (i.e. a layer whose staves overlap in phi)
 Inputs:
          nlay    layer number
          phi0    phi of 1st stave
          r       layer radius
          zlen    layer length
          nstav   number of staves
          nunit   IB: number of chips per stave
                  OB: number of modules per half stave
          width   stave width
          tilt    layer tilt angle (degrees)
          lthick  chip thickness (if omitted, defaults to 0)
          dthick  sensor thickness (if omitted, defaults to 0)
          dettypeID  ??
          buildLevel (if 0, all geometry is build, used for material budget studies)
 Outputs:
   none.
 Return:
   none.

     Gets the layer parameters
 Inputs:
          nlay    layer number
 Outputs:
          phi0    phi of 1st stave
          r       layer radius
          zlen    layer length
          nstav   number of staves
          nmod    IB: number of chips per stave
                  OB: number of modules per half stave
          width   stave width
          tilt    stave tilt angle
          lthick  chip thickness
          dthick  sensor thickness
          dettype detector type
 Return:
   none.

     Creates an air-filled wrapper cylindrical volume
 Inputs:
          volume id
 Outputs:
          the wrapper volume

     Initialise the ITS after it has been created.

     Returns true if the layer is a "turbo" layer

 sets the default segmentation, response, digit and raw cluster classes

    Called for every step in the ITS, then calles the AliITSUHit class
 creator with the information to be recoreded about that hit.
     The value of the macro ALIITSPRINTGEOM if set to 1 will allow the
 printing of information to a file which can be used to create a .det
 file read in by the routine CreateGeometry(). If set to 0 or any other
 value except 1, the default behavior, then no such file is created nor
 it the extra variables and the like used in the printing allocated.
 Inputs:
   none.
 Outputs:
   none.
 Return:
   none.

 set det type

 set det type