[u/mrichter/AliRoot.git] / MUON / AliMUONGeometryMisAligner.h

/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

// $Id$

/// \ingroup geometry
/// \class AliMUONGeometryMisAligner
/// \brief Class for misalignment of geometry transformations
///
/// Author: Bruce Becker


#ifndef ALI_MUON_GEOMETRY_MIS_ALIGNER_H
#define ALI_MUON_GEOMETRY_MIS_ALIGNER_H

#include <TObject.h>
#include <TGeoMatrix.h>

class AliMUONGeometryTransformer;

class TRandom;

class AliMUONGeometryMisAligner:public TObject
{
 public:
  AliMUONGeometryMisAligner(Double_t cartMisAlig, Double_t angMisAlig);
  AliMUONGeometryMisAligner();
  virtual ~AliMUONGeometryMisAligner();
  
  //_________________________________________________________________
  // methods
  
  // return a misaligned geometry obtained from the existing one.
  AliMUONGeometryTransformer* MisAlign(const AliMUONGeometryTransformer* transformer, 
                                       Bool_t verbose = kFALSE);
  
  void SetMaxCartMisAlig(Double_t offset)
    {fMaxCartMisAlig = offset ;}
  
  void SetMaxAngMisAlig(Double_t offset)
    {fMaxAngMisAlig = offset;}
  
  void SetXYAngMisAligFactor(Double_t factor);
  
  
 protected:
  AliMUONGeometryMisAligner(const AliMUONGeometryMisAligner & right);
  AliMUONGeometryMisAligner & operator =(const AliMUONGeometryMisAligner &right);
  
 private:
  // return a misaligned transformation
  TGeoCombiTrans MisAlign(const TGeoCombiTrans& transform) const;

  Double_t fMaxCartMisAlig;   // cartesian displacement range, set by SetMaxCartMisAlig (translations)
  Double_t fMaxAngMisAlig;    // Angular displacement range (rotations)
  Double_t fXYAngMisAligFactor; // factor (<1) to apply to angular misalignment range since range of motion is restricted out of the xy plane
  TRandom *fDisplacementGenerator;  // random number generator for the displacements
  
  ClassDef(AliMUONGeometryMisAligner,2)	// Geometry parametrisation
};

#endif //ALI_MUON_GEOMETRY_MIS_ALIGNER_H
Commit	Line	Data
21dd83fc	1	/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	2	* See cxx source for full Copyright notice */
	3
	4	// $Id$
	5
	6	/// \ingroup geometry
	7	/// \class AliMUONGeometryMisAligner
	8	/// \brief Class for misalignment of geometry transformations
	9	///
	10	/// Author: Bruce Becker
	11
	12
	13	#ifndef ALI_MUON_GEOMETRY_MIS_ALIGNER_H
	14	#define ALI_MUON_GEOMETRY_MIS_ALIGNER_H
	15
	16	#include <TObject.h>
	17	#include <TGeoMatrix.h>
21dd83fc	18
	19	class AliMUONGeometryTransformer;
	20
ef79ed3a	21	class TRandom;
ef79ed3a	22
21dd83fc	23	class AliMUONGeometryMisAligner:public TObject
	24	{
	25	public:
	26	AliMUONGeometryMisAligner(Double_t cartMisAlig, Double_t angMisAlig);
	27	AliMUONGeometryMisAligner();
	28	virtual ~AliMUONGeometryMisAligner();
	29
	30	//_________________________________________________________________
	31	// methods
	32
	33	// return a misaligned geometry obtained from the existing one.
ef79ed3a	34	AliMUONGeometryTransformer* MisAlign(const AliMUONGeometryTransformer* transformer,
ef79ed3a	35	Bool_t verbose = kFALSE);
21dd83fc	36
21dd83fc	37	void SetMaxCartMisAlig(Double_t offset)
	38	{fMaxCartMisAlig = offset ;}
	39
	40	void SetMaxAngMisAlig(Double_t offset)
	41	{fMaxAngMisAlig = offset;}
	42
	43	void SetXYAngMisAligFactor(Double_t factor);
	44
	45
	46	protected:
	47	AliMUONGeometryMisAligner(const AliMUONGeometryMisAligner & right);
	48	AliMUONGeometryMisAligner & operator =(const AliMUONGeometryMisAligner &right);
	49
	50	private:
ef79ed3a	51	// return a misaligned transformation
	52	TGeoCombiTrans MisAlign(const TGeoCombiTrans& transform) const;
	53
21dd83fc	54	Double_t fMaxCartMisAlig; // cartesian displacement range, set by SetMaxCartMisAlig (translations)
	55	Double_t fMaxAngMisAlig; // Angular displacement range (rotations)
	56	Double_t fXYAngMisAligFactor; // factor (<1) to apply to angular misalignment range since range of motion is restricted out of the xy plane
	57	TRandom *fDisplacementGenerator; // random number generator for the displacements
	58
	59	ClassDef(AliMUONGeometryMisAligner,2) // Geometry parametrisation
	60	};
	61
	62	#endif //ALI_MUON_GEOMETRY_MIS_ALIGNER_H
	63
	64
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	66