class AliITSUv1Layer: public AliITSv11Geometry

 Standard constructor

 Constructor setting debugging level

 Constructor setting layer number and debugging level

 Constructor setting layer number and debugging level
 for a "turbo" layer (i.e. where staves overlap in phi)

 Copy constructor

 Assignment operator

 Destructor

 Creates the actual Layer and places inside its mother volume

 Input:
         moth : the TGeoVolume owing the volume structure

 Output:

 Return:

 Created:      17 Jun 2011  Mario Sitta
 Updated:      08 Jul 2011  Mario Sitta
 Updated:      20 May 2013  Mario Sitta  Layer is Assembly instead of Tube

 Local variables

 Creates the actual Layer and places inside its mother volume
 A so-called "turbo" layer is a layer where staves overlap in phi
 User can set width and tilt angle, no check is performed here
 to avoid volume overlaps

 Input:
         moth : the TGeoVolume owing the volume structure

 Output:

 Return:

 Created:      08 Jul 2011  Mario Sitta
 Updated:      08 Mar 2012  Mario Sitta  Correct way to compute container R
 Updated:      20 May 2013  Mario Sitta  Layer is Assemgbly instead of Tube

 Creates the actual Stave

 Input:
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Created:      22 Jun 2011  Mario Sitta
 Updated:      18 Dec 2013  Mario Sitta  Handle IB and OB

 Create the chip stave for the Inner Barrel
 (Here we fake the halfstave volume to have the same
 formal geometry hierarchy as for the Outer Barrel)

 Input:
         xsta, ysta, zsta : X, Y, Z stave half lengths
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Created:      06 Mar 2014  Mario Sitta

 Local variables

 Creates the IB Module: (only the chips for the time being)

 Input:
         xmod, ymod, zmod : X, Y, Z module half lengths
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:
         the module as a TGeoVolume

 Created:      06 Mar 2014  M. Sitta

 Create the mechanical stave structure

 Input:
         xsta : X length
         zsta : Z length
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Created:      22 Mar 2013  Chinorat Kobdaj
 Updated:      26 Apr 2013  Mario Sitta

 Create dummy stave

 Input:
         xsta : X length
         zsta : Z length
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Created:      22 Mar 2013  Chinorat Kobdaj
 Updated:      26 Apr 2013  Mario Sitta

 Done, return the stave structur

 Create the mechanical stave structure for Model 0 of TDR

 Input:
         xsta : X length
         zsta : Z length
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Created:      22 Mar 2013  Chinorat Kobdaj
 Updated:      26 Apr 2013  Mario Sitta

 Materials defined in AliITSUv1

 Create the mechanical stave structure for Model 1 of TDR

 Input:
         xsta : X length
         zsta : Z length
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Created:      22 Mar 2013  Chinorat Kobdaj
 Updated:      26 Apr 2013  Mario Sitta

 Materials defined in AliITSUv1

 Create the mechanical stave structure for Model 2.1 of TDR

 Input:
         xsta : X length
         zsta : Z length
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Created:      22 Mar 2013  Chinorat Kobdaj
 Updated:      26 Apr 2013  Mario Sitta

 Materials defined in AliITSUv1

 Create the mechanical stave structure for Model 2.2 of TDR

 Input:
         xsta : X length
         zsta : Z length
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Created:      22 Mar 2013  Chinorat Kobdaj
 Updated:      26 Apr 2013  Mario Sitta
 Updated:      30 Apr 2013  Wanchaloem Poonsawat

 Materials defined in AliITSUv1

 Create the mechanical stave structure for Model 3 of TDR

 Input:
         xsta : X length
         zsta : Z length
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Created:      28 May 2013  Chinorat Kobdaj
 Updated:                   Mario Sitta
 Updated:                   Wanchaloem Poonsawat

 Materials defined in AliITSUv1

 Create the mechanical stave structure for Model 2.2 of TDR
 Logic is similar to method CreateStaveModelInnerB22
 but completely rewritten:
 - code completely revised, made systematic and more similar to OB
 - fix some inconsistencies (stave element sequence, empty space)
 - use static const as parameters
 - comply with latest (nov '14) C.Gargiulo data

 Input:
         xstave : stave X half length
         zstave : stave Z half length
         mgr    : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Created:      04 Dec 2014  Mario Sitta

 Local parameters

 Create the chip stave for the Outer Barrel

 Input:
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Created:      20 Dec 2013  Mario Sitta
 Updated:      12 Mar 2014  Mario Sitta

 Create dummy stave

 Input:
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Created:      20 Dec 2013  Mario Sitta

 Creation of the mechanical stave structure for the Outer Barrel as in v0
 (we fake the module and halfstave volumes to have always
 the same formal geometry hierarchy)

 Input:
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Created:      20 Dec 2013  Mario Sitta
 Updated:      12 Mar 2014  Mario Sitta

 Create the mechanical half stave structure
 for the Outer Barrel as in TDR

 Input:
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Created:      20 Nov 2013  Anastasia Barbano
 Updated:      16 Jan 2014  Mario Sitta
 Updated:      24 Feb 2014  Mario Sitta
 Updated:      11 Nov 2014  Mario Sitta  Model2
 Updated:      03 Dec 2014  Mario Sitta  Revised with C.Gargiulo latest infos

 Create the space frame for the Outer Barrel

 Input:
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Create dummy stave

 Input:
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Create the space frame for the Outer Barrel (Model 1)

 Input:
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:
         a TGeoVolume with the Space Frame of a stave

 Created:      20 Dec 2013  Anastasia Barbano
 Updated:      15 Jan 2014  Mario Sitta
 Updated:      18 Feb 2014  Mario Sitta
 Updated:      12 Mar 2014  Mario Sitta

 Creates the actual Chip

 Input:
         xchip,ychip,zchip : the chip dimensions
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:

 Created:      22 Jun 2011  Mario Sitta

 Creates the OB Module: HIC + FPC + Carbon plate

 Input:
         mgr  : the GeoManager (used only to get the proper material)

 Output:

 Return:
         the module as a TGeoVolume

 Created:      18 Dec 2013  M. Sitta, A. Barbano
 Updated:      26 Feb 2014  M. Sitta
 Updated:      12 Nov 2014  M. Sitta  Model2 is w/o Carbon Plate and Glue
                                      and Cu instead of Al

 Sets the number of units in a stave:
      for the Inner Barrel: the number of chips per stave
      for the Outer Barrel: the number of modules per half stave


 Input:
         u :  the number of units

 Output:

 Return:

 Created:      18 Feb 2013  Mario Sitta (was already SetNChips)

 Sets the Stave tilt angle (for turbo layers only)

 Input:
         t :  the stave tilt angle

 Output:

 Return:

 Created:      08 Jul 2011  Mario Sitta

 Sets the Stave width (for turbo layers only)

 Input:
         w :  the stave width

 Output:

 Return:

 Created:      08 Jul 2011  Mario Sitta

 Creates the V-shaped sides of the OB space frame
 (from a similar method with same name and function
 in AliITSv11GeometrySDD class by L.Gaudichet)

 Create one half of the V shape corner of CF stave

 Help method to create a TGeoCombiTrans matrix
 (from a similar method with same name and function
 in AliITSv11GeometrySDD class by L.Gaudichet)


 return the TGeoCombiTrans which make a translation in y and z
 and a rotation in phi in the global coord system
 If planeSym = true, the rotation places the object symetrically
 (with respect to the transverse plane) to its position in the
 case planeSym = false

 Help method to add a translation to a TGeoCombiTrans matrix
 (from a similar method with same name and function
 in AliITSv11GeometrySDD class by L.Gaudichet)

 Add a dx,dy,dz translation to the initial TGeoCombiTrans