AliEMCALSurvey Class Reference

Read survey data and create alignement. More...

#include <AliEMCALSurvey.h>

Inheritance diagram for AliEMCALSurvey:

Classes
struct	AliEMCALSuperModuleDelta

Public Types
enum	SurveyDataType_t { kSurvey = 0, kDummy = 1 }

Public Member Functions
	AliEMCALSurvey ()
	Default constructor. More...
	AliEMCALSurvey (const TString &txtFileName, const SurveyDataType_t dataType=kSurvey)
virtual	~AliEMCALSurvey ()
	Destructor. More...
void	CreateAliAlignObjParams (TClonesArray &array)
	Create AliAlignObjParams. More...
void	CreateNullObjects (TClonesArray &alObj, const AliEMCALGeometry *geom) const
	Create null shifts and rotations. More...
void	SetDataType (const SurveyDataType_t dataType)
Int_t	GetDataType () const

Protected Member Functions
void	InitSuperModuleData (const Double_t *xReal, const Double_t *yReal, const Double_t *zReal, const Double_t *psiReal, const Double_t *thetaReal, const Double_t *phiReal)
void	InitSuperModuleData (const TObjArray *surveypoints)

Protected Attributes
Int_t	fNSuperModule
	Number of supermodules. More...
AliEMCALSuperModuleDelta *	fSuperModuleData
	Supermodule transformation data. More...

Private Member Functions
virtual AliEMCALSuperModuleDelta	GetSuperModuleTransformation (Int_t smIndex) const
	Supermodule transformation. More...
	AliEMCALSurvey (const AliEMCALSurvey &)
AliEMCALSurvey &	operator= (const AliEMCALSurvey &)

Private Attributes
Int_t	fDataType
	! which date type (survey or dummy) to use More...

Detailed Description

Read survey data and create alignement.

Objects of this class read txt file with survey data and convert the data into AliAlignObjParams of alignable EMCAL volumes. AliEMCALSurvey inherits TObject only to use AliLog "functions".

Dummy functions originally written before EMCAL installation and survey are kept for backward compatibility, but now they are not used.

Surveyed points on the EMCAL support rails were used with the CATIA 3D graphics program to determine the positions of the bottom corners of the active area for each supermodule. These numbers are read in from file and converted to position of the center and roll, pitch, yaw angles of each installed SM.

Author

J.L. Klay, Cal Poly

Adapted for DCAL by M.L. Wang CCNU & Subatech Oct-19-2012

Definition at line 40 of file AliEMCALSurvey.h.

Member Enumeration Documentation

enum AliEMCALSurvey::SurveyDataType_t

Enumerator
kSurvey	use real survey parameters
kDummy	use dummy values for testing

Definition at line 45 of file AliEMCALSurvey.h.

Constructor & Destructor Documentation

AliEMCALSurvey::AliEMCALSurvey

(

)

Default constructor.

Definition at line 39 of file AliEMCALSurvey.cxx.

AliEMCALSurvey::AliEMCALSurvey	(	const TString &	txtFileName,
		const SurveyDataType_t	type = kSurvey
	)

Get the geometry object and then attempt to read survey data from a file, depending on which method (kSurvey or kDummy) is selected.

Definition at line 65 of file AliEMCALSurvey.cxx.

AliEMCALSurvey::~AliEMCALSurvey ( )

virtual

Destructor.

Definition at line 146 of file AliEMCALSurvey.cxx.

AliEMCALSurvey::AliEMCALSurvey ( const AliEMCALSurvey &  )

private

Member Function Documentation

void AliEMCALSurvey::CreateAliAlignObjParams

(

TClonesArray &

array

)

Create AliAlignObjParams.

Definition at line 154 of file AliEMCALSurvey.cxx.

Referenced by MakeEMCALFullMisAlignment().

void AliEMCALSurvey::CreateNullObjects	(	TClonesArray &	alObj,
		const AliEMCALGeometry *	geom
	)		const

Create null shifts and rotations.

Definition at line 229 of file AliEMCALSurvey.cxx.

Referenced by CreateAliAlignObjParams(), and MakeEMCALZeroMisAlignment().

Int_t AliEMCALSurvey::GetDataType ( ) const

inline

Definition at line 63 of file AliEMCALSurvey.h.

AliEMCALSurvey::AliEMCALSuperModuleDelta AliEMCALSurvey::GetSuperModuleTransformation ( Int_t  smIndex ) const

privatevirtual

Supermodule transformation.

Definition at line 268 of file AliEMCALSurvey.cxx.

Referenced by CreateAliAlignObjParams().

void AliEMCALSurvey::InitSuperModuleData ( const Double_t *  xReal, const Double_t *  yReal, const Double_t *  zReal, const Double_t *  psiReal, const Double_t *  thetaReal, const Double_t *  phiReal  )

protected

Dummy method just takes the inputted values and applies them

Useful for testing small changes

Definition at line 561 of file AliEMCALSurvey.cxx.

Referenced by AliEMCALSurvey().

void AliEMCALSurvey::InitSuperModuleData ( const TObjArray *  svypts )

protected

This method uses the data points from the EMCAL survey and CATIA program to create the alignment matrices. Only valid for (installed) SM, others will have null objects

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The bottom edges of the strip modules define the active area of the EMCAL, but in software we have a box to hold them which is longer than that. We need to convert info about the position of the corners of the bottom of the active area to the center of the software box that contains the strip modules.

View from beam axis up to EMCAL Ai Ci

0,1 0,0 1,0 1,1 xxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx x x x x x x x x % * x x * % x x x x x x x x xxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx 1,1 1,0 0,0 0,1 <–> = added length <–> = added length

• represents the center of the active area % represents the center of the full box (with added length)

View from side of topmost SM

Ai Ci

0,1 0,0 1,0 1,1 xxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx x x % * x x % * x x xxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx 1,1 1,0 0,0 0,1 <–> = added length <–> = added length

• represents the center of the active area % represents the center of the full box (with added length)

  ---

Definition at line 324 of file AliEMCALSurvey.cxx.

AliEMCALSurvey& AliEMCALSurvey::operator= ( const AliEMCALSurvey &  )

private

void AliEMCALSurvey::SetDataType ( const SurveyDataType_t  dataType )

inline

Definition at line 62 of file AliEMCALSurvey.h.

Member Data Documentation

Int_t AliEMCALSurvey::fDataType

private

! which date type (survey or dummy) to use

Definition at line 91 of file AliEMCALSurvey.h.

Referenced by AliEMCALSurvey(), GetDataType(), and SetDataType().

Int_t AliEMCALSurvey::fNSuperModule

protected

Number of supermodules.

Definition at line 76 of file AliEMCALSurvey.h.

Referenced by AliEMCALSurvey(), and InitSuperModuleData().

AliEMCALSuperModuleDelta* AliEMCALSurvey::fSuperModuleData

protected

Supermodule transformation data.

Definition at line 77 of file AliEMCALSurvey.h.

Referenced by GetSuperModuleTransformation(), InitSuperModuleData(), and ~AliEMCALSurvey().

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The documentation for this class was generated from the following files:

• EMCAL/EMCALbase/AliEMCALSurvey.h
• EMCAL/EMCALbase/AliEMCALSurvey.cxx