class AliTRDalignment: public TObject

 constructor

 copy constructor

 assignment operator

 multiplication operator

 addition operator

 subtraction operator

 comparison operator

 reset to zero supermodule data

 reset to zero chamber data

 generate random gaussian supermodule data with sigmas a

 generate random gaussian chamber data with sigmas a

 generate random gaussian supermodule data similar to the misalignment
 expected from the mechanical precision

 generate random gaussian chamber data similar to the misalignment
 expected from the mechanical precision

 generate random gaussian supermodule data similar to the misalignment
 remaining after full calibration
 I assume that it will be negligible

 generate random gaussian chamber data similar to the misalignment
 remaining after full calibration

 print the supermodule data

 print the chamber data

 read the alignment data from ascii file

 use currently loaded geometry to determine misalignment by comparing
 original and misaligned matrix of the last node
 Now, original, does not mean "ideal". It is the matrix before the alignment.
 So, if alignment was applied more than once, the numbers extracted will
 represent just the last alignment. -- check this!

 read the alignment data from root file

 read the alignment data from database file

 read the alignment data from database

 decode the survey point name and extract the sm, z, r and phi indices

 Read survey report and store the numbers in fSurveyX, fSurveyY, fSurveyZ,
 and fSurveyE.  Store the survey info in the fComment.
 Each supermodule has 8 survey points. The point names look like
 TRD_sm08ah0 and have the following meaning.

 sm00..17 mean supermodule 0 through 17, following the phi.
 Supermodule 00 is between phi=0 and phi=20 degrees.

 a or c denotes the anticlockwise and clockwise end of the supermodule
 in z. Clockwise end is where z is negative and where the muon arm sits.

 l or h denote low radius and high radius holes

 0 or 1 denote the hole at smaller and at larger phi, respectively.

 Read survey report and store the numbers in fSurveyX, fSurveyY, fSurveyZ,
 and fSurveyE.  Store the survey info in the fComment.
 Each supermodule has 8 survey points. The point names look like
 TRD_sm08ah0 and have the following meaning.

 sm00..17 mean supermodule 0 through 17, following the phi.
 Supermodule 00 is between phi=0 and phi=20 degrees.

 a or c denotes the anticlockwise and clockwise end of the supermodule
 in z. Clockwise end is where z is negative and where the muon arm sits.

 l or h denote low radius and high radius holes

 0 or 1 denote the hole at smaller and at larger phi, respectively.

 read the alignment data from any kind of file

 store the alignment data on ascii file

 store the alignment data on root file

 dumping on a DB-like file

 store the alignment data in database

 apply misalignment to current geometry and store the
 resulting geometry on a root file

 rms fSm[][xyz]

 rms fCh[][xyz]

 dump rms of fSm

 dump rms of fCh

 for each of the alignment objects in array ar extract the six local
 alignment parameters; recognize by name to which supermodule or chamber
 the alignment object pertains; set the respective fSm or fCh

 build array of AliAlignObj objects based on fSm and fCh data
 at the same time, apply misalignment to the currently loaded geometry
 it is important to apply misalignment of supermodules before creating
 alignment objects for chambers

 check whether a geometry is loaded
 issue a warning if geometry is not ideal

 simple getters (for other getters see below)

 dumping on screen

 geometry and symbolic names getters
 phi-sector number of chamber ch, 0-17

 stack number, 0-4

 plane number, 0-5

 module number, 0-89

 layer number, 9-14

 volume id

 symbolic name of a supermodule

 symbolic name of a chamber

 index of a supermodule

 index of a chamber