// the information needed to do the coordinate transformation are kept in
// a specialized structure for ease of implementation.
/////////////////////////////////////////////////////////////////////////
-#include <fstream.h>
+#include <Riostream.h>
+#include <TObject.h>
#include <TObjArray.h>
#include <TVector.h>
-#include "AliITSgeomSPD.h"
-#include "AliITSgeomSDD.h"
-#include "AliITSgeomSSD.h"
#include "AliITSgeomMatrix.h"
-typedef enum {kSPD=0, kSDD=1, kSSD=2} AliITSDetector;
+
+typedef enum {kSPD=0, kSDD=1, kSSD=2, kSSDp=3,kSDDp=4} AliITSDetector;
//_______________________________________________________________________
public:
AliITSgeom(); // Default constructor
AliITSgeom(const char *filename); // Constructor
- void ReadNewFile(const char *filename); // Constructor for new format.
+ AliITSgeom(Int_t itype,Int_t nlayers,Int_t *nlads,Int_t *ndets,
+ Int_t nmods); // Constructor
+ // this function allocates a AliITSgeomMatrix for a particular module.
+ void CreatMatrix(Int_t mod,Int_t lay,Int_t lad,Int_t det,
+ AliITSDetector idet,const Double_t tran[3],
+ const Double_t rot[10]);
+ void ReadNewFile(const char *filename); // Constructor for new format.
+ void WriteNewFile(const char *filename); // Output for new format.
AliITSgeom(AliITSgeom &source); // Copy constructor
- void operator=(AliITSgeom &source);// = operator
+ AliITSgeom& operator=(AliITSgeom &source);// = operator
virtual ~AliITSgeom(); // Default destructor
// Getters
Int_t GetTransformationType() const {return fTrans;}
//
+ // returns kTRUE if the transformation defined by this class is
+ // for Global GEANT coordinate system to the local GEANT coordinate system
+ // of the detector. These are the transformation used by GEANT.
Bool_t IsGeantToGeant() const {return (fTrans == 0);}
+ // returns kTRUE if the transformation defined by this class is
+ // for Global GEANT coordinate system to the local "Tracking" coordinate
+ // system of the detector. These are the transformation used by the
+ // Tracking code.
Bool_t IsGeantToTracking() const {return ((fTrans&&0xfffe)!= 0);}
+ // returns kTRUE if the transformation defined by this class is
+ // for Global GEANT coordinate system to the local GEANT coordinate system
+ // of the detector but may have been displaced by some typically small
+ // amount. These are modified transformation similar to that used by GEANT.
Bool_t IsGeantToDisplaced() const {return ((fTrans&&0xfffd)!= 0);}
+ // returns kTRUE if the shape defined by ishape has been defined in this
+ // set of transformations. Typical values of ishape are kSPD, kSDD, kSSD,
+ // SSD2.
+ Bool_t IsShapeDefined(Int_t ishape)const {
+ if(fShape!=0){return ((fShape->At(ishape))!=0);}else return kFALSE;}
//
+ // This function returns a pointer to the particular AliITSgeomMatrix
+ // class for a specific module index.
+ AliITSgeomMatrix *GetGeomMatrix(Int_t index){
+ return (AliITSgeomMatrix*)(fGm->At(index));}
// This function returns the number of detectors/ladder for a give
// layer. In particular it returns fNdet[layer-1].
- Int_t GetNdetectors(const Int_t lay) const {return fNdet[lay-1];}
+ Int_t GetNdetectors(Int_t lay) const {return fNdet[lay-1];}
// This function returns the number of ladders for a give layer. In
// particular it returns fNlad[layer-1].
- Int_t GetNladders(const Int_t lay) const {return fNlad[lay-1];}
+ Int_t GetNladders(Int_t lay) const {return fNlad[lay-1];}
// This function returns the number of layers defined in the ITS
// geometry. In particular it returns fNlayers.
Int_t GetNlayers() const {return fNlayers;}
- Int_t GetModuleIndex(const Int_t lay,const Int_t lad,const Int_t det);
+ Int_t GetModuleIndex(Int_t lay,Int_t lad,Int_t det);
// This function returns the module index number given the layer,
// ladder and detector numbers put into the array id[3].
Int_t GetModuleIndex(const Int_t *id){
return GetModuleIndex(id[0],id[1],id[2]);}
- void GetModuleId(const Int_t index,Int_t &lay,Int_t &lad,Int_t &det);
+ void GetModuleId(Int_t index,Int_t &lay,Int_t &lad,Int_t &det);
+ // Returns the detector type
+ Int_t GetModuleType(Int_t index){
+ return GetGeomMatrix(index)->GetDetectorIndex();}
//
- Int_t GetStartDet(const Int_t dtype );
- Int_t GetLastDet(const Int_t dtype);
+ Int_t GetStartDet(Int_t dtype );
+ Int_t GetLastDet(Int_t dtype);
// Returns the starting module index number for SPD detector,
// assuming the modules are placed in the "standard" cylindrical
// ITS structure.
// ITS structure.
Int_t GetLastSSD() {return GetModuleIndex(6,fNlad[5],fNdet[5]);}
// Returns the last module index number.
- Int_t GetIndexMax() {return fNmodules;}
+ Int_t GetIndexMax() const {return fNmodules;}
//
// This function returns the rotation angles for a give module
// in the Double point array ang[3]. The angles are in radians
- void GetAngles(const Int_t index,Double_t *ang) {
- fGm[index]->GetAngles(ang);}
+ void GetAngles(Int_t index,Double_t *ang) {
+ GetGeomMatrix(index)->GetAngles(ang);}
// This function returns the rotation angles for a give module
// in the three floating point variables provided. rx = frx,
// fy = fry, rz = frz. The angles are in radians
- void GetAngles(const Int_t index,Float_t &rx,Float_t &ry,Float_t &rz) {
+ void GetAngles(Int_t index,Float_t &rx,Float_t &ry,Float_t &rz) {
Double_t a[3];GetAngles(index,a);
rx = a[0];ry = a[1];rz = a[2];}
// This function returns the rotation angles for a give detector on
// a give ladder in a give layer in the three floating point variables
// provided. rx = frx, fy = fry, rz = frz. The angles are in radians
- void GetAngles(const Int_t lay,const Int_t lad,const Int_t det,
+ void GetAngles(Int_t lay,Int_t lad,Int_t det,
Float_t &rx,Float_t &ry,Float_t &rz) {
GetAngles(GetModuleIndex(lay,lad,det),rx,ry,rz);}
//
// This function returns the 6 GEANT rotation angles for a give
// module in the double point array ang[3]. The angles are in degrees
- void GetGeantAngles(const Int_t index,Double_t *ang){
- fGm[index]->SixAnglesFromMatrix(ang);}
+ void GetGeantAngles(Int_t index,Double_t *ang){
+ GetGeomMatrix(index)->SixAnglesFromMatrix(ang);}
//
// This function returns the Cartesian translation for a give
// module in the Double array t[3]. The units are
// those of the Monte Carlo, generally cm.
- void GetTrans(const Int_t index,Double_t *t) {
- fGm[index]->GetTranslation(t);}
+ void GetTrans(Int_t index,Double_t *t) {
+ GetGeomMatrix(index)->GetTranslation(t);}
// This function returns the Cartesian translation for a give
// module index in the three floating point variables provided.
// x = fx0, y = fy0, z = fz0. The units are those of the Mont
// Carlo, generally cm.
- void GetTrans(const Int_t index,Float_t &x,Float_t &y,Float_t &z) {
+ void GetTrans(Int_t index,Float_t &x,Float_t &y,Float_t &z) {
Double_t t[3];GetTrans(index,t);
x = t[0];y = t[1];z = t[2];}
// This function returns the Cartesian translation for a give
// detector on a give ladder in a give layer in the three floating
// point variables provided. x = fx0, y = fy0, z = fz0. The units are
// those of the Monte Carlo, generally cm.
- void GetTrans(const Int_t lay,const Int_t lad,const Int_t det,
+ void GetTrans(Int_t lay,Int_t lad,Int_t det,
Float_t &x,Float_t &y,Float_t &z) {
GetTrans(GetModuleIndex(lay,lad,det),x,y,z);}
+//
+ // This function returns the Cartesian translation for a give
+ // module in the Double array t[3]. The units are
+ // those of the Monte Carlo, generally cm.
+ void GetTransCyln(Int_t index,Double_t *t) {
+ GetGeomMatrix(index)->GetTranslationCylinderical(t);}
+ // This function returns the Cartesian translation for a give
+ // module index in the three floating point variables provided.
+ // x = fx0, y = fy0, z = fz0. The units are those of the Mont
+ // Carlo, generally cm.
+ void GetTransCyln(Int_t index,Float_t &x,Float_t &y,Float_t &z) {
+ Double_t t[3];GetTransCyln(index,t);
+ x = t[0];y = t[1];z = t[2];}
+ // This function returns the Cartesian translation for a give
+ // detector on a give ladder in a give layer in the three floating
+ // point variables provided. x = fx0, y = fy0, z = fz0. The units are
+ // those of the Monte Carlo, generally cm.
+ void GetTransCyln(Int_t lay,Int_t lad,Int_t det,
+ Float_t &x,Float_t &y,Float_t &z) {
+ GetTransCyln(GetModuleIndex(lay,lad,det),x,y,z);}
//
// This function returns the Cartesian translation [cm] and the
// 6 GEANT rotation angles [degrees]for a given layer ladder and
// detector number, in the TVector x (at least 9 elements large).
- void GetCenterThetaPhi(const Int_t lay,const Int_t lad,const Int_t det,
+ void GetCenterThetaPhi(Int_t lay,Int_t lad,Int_t det,
TVector &x){Double_t t[3],ang[6];
Int_t index=GetModuleIndex(lay,lad,det);
GetTrans(index,t);GetGeantAngles(index,ang);
//
// This function returns the rotation matrix in Double
// precision for a given module.
- void GetRotMatrix(const Int_t index,Double_t mat[3][3]){
- fGm[index]->GetMatrix(mat);}
+ void GetRotMatrix(Int_t index,Double_t mat[3][3]){
+ GetGeomMatrix(index)->GetMatrix(mat);}
// This function returns the rotation matrix in a Double
// precision pointer for a given module. mat[i][j] => mat[3*i+j].
- void GetRotMatrix(const Int_t index,Double_t *mat){
+ void GetRotMatrix(Int_t index,Double_t *mat){
Double_t rot[3][3];GetRotMatrix(index,rot);
for(Int_t i=0;i<3;i++)for(Int_t j=0;j<3;j++) mat[3*i+j] = rot[i][j];}
// This function returns the rotation matrix in a floating
// precision pointer for a given layer ladder and detector module.
// mat[i][j] => mat[3*i+j].
- void GetRotMatrix(const Int_t lay,const Int_t lad,const Int_t det,
+ void GetRotMatrix(Int_t lay,Int_t lad,Int_t det,
Float_t *mat){GetRotMatrix(GetModuleIndex(lay,lad,det),mat);}
// This function returns the rotation matrix in a Double
// precision pointer for a given layer ladder and detector module.
// mat[i][j] => mat[3*i+j].
- void GetRotMatrix(const Int_t lay,const Int_t lad,const Int_t det,
+ void GetRotMatrix(Int_t lay,Int_t lad,Int_t det,
Double_t *mat){GetRotMatrix(GetModuleIndex(lay,lad,det),mat);}
// This function returns the rotation matrix in a floating
// precision pointer for a given module. mat[i][j] => mat[3*i+j].
- void GetRotMatrix(const Int_t index,Float_t *mat){
- Double_t rot[3][3];fGm[index]->GetMatrix(rot);
+ void GetRotMatrix(Int_t index,Float_t *mat){
+ Double_t rot[3][3];
+ GetGeomMatrix(index)->GetMatrix(rot);
for(Int_t i=0;i<3;i++)for(Int_t j=0;j<3;j++) mat[3*i+j] = rot[i][j];}
//
+ // Will define fShape if it isn't already defined.
+ void DefineShapes(Int_t size=4)
+ {if(fShape==0) fShape = new TObjArray(size);else fShape->Expand(size);}
+ // this function returns a pointer to the class describing a particular
+ // detector type based on AliITSDetector value. This will return a pointer
+ // to one of the classes AliITSgeomSPD, AliITSgeomSDD, or AliITSgeomSSD,
+ // for example.
+ virtual TObject *GetShape(const AliITSDetector idet)
+ {return fShape->At((Int_t)idet);};
// This function returns a pointer to the class describing the
// detector for a particular module index. This will return a pointer
// to one of the classes AliITSgeomSPD, AliITSgeomSDD, or AliITSgeomSSD,
// for example.
- virtual TObject *GetShape(const Int_t index)
- {return fShape->At(fGm[index]->GetDetectorIndex());}
+ virtual TObject *GetShape(Int_t index){
+ return fShape->At(GetGeomMatrix(index)->
+ GetDetectorIndex());}
// This function returns a pointer to the class describing the
// detector for a particular layer ladder and detector numbers. This
// will return a pointer to one of the classes AliITSgeomSPD,
// AliITSgeomSDD, or AliITSgeomSSD, for example.
- virtual TObject *GetShape(const Int_t lay,const Int_t lad,const Int_t det)
+ virtual TObject *GetShape(Int_t lay,Int_t lad,Int_t det)
{return GetShape(GetModuleIndex(lay,lad,det));}
-//
- // This function returns a pointer to the particular AliITSgeomMatrix
- // class for a specific module index.
- AliITSgeomMatrix *GetGeomMatrix(Int_t index){return fGm[index];}
//
// Setters
// Sets the rotation angles and matrix for a give module index
// via the double precision array a[3] [radians].
- void SetByAngles(const Int_t index,const Double_t a[]){
- fGm[index]->SetAngles(a);}
+ void SetByAngles(Int_t index,const Double_t a[]){
+ GetGeomMatrix(index)->SetAngles(a);}
// Sets the rotation angles and matrix for a give module index
// via the 3 floating precision variables rx, ry, and rz [radians].
- void SetByAngles(const Int_t index,
+ void SetByAngles(Int_t index,
const Float_t rx,const Float_t ry,const Float_t rz) {
Double_t a[3];a[0] = rx;a[1] = ry;a[2] = rz;
- fGm[index]->SetAngles(a);}
+ GetGeomMatrix(index)->SetAngles(a);}
// Sets the rotation angles and matrix for a give layer, ladder,
// and detector numbers via the 3 floating precision variables rx,
// ry, and rz [radians].
- void SetByAngles(const Int_t lay,const Int_t lad,const Int_t det,
+ void SetByAngles(Int_t lay,Int_t lad,Int_t det,
const Float_t rx,const Float_t ry,const Float_t rz) {
SetByAngles(GetModuleIndex(lay,lad,det),rx,ry,rz);}
//
// Sets the rotation angles and matrix for a give module index
// via the Double precision array a[6] [degree]. The angles are those
// defined by GEANT 3.12.
- void SetByGeantAngles(const Int_t index,const Double_t *ang){
- fGm[index]->MatrixFromSixAngles(ang);}
+ void SetByGeantAngles(Int_t index,const Double_t *ang){
+ GetGeomMatrix(index)->MatrixFromSixAngles(ang);}
// Sets the rotation angles and matrix for a give layer, ladder
// and detector, in the array id[3] via the Double precision array
// a[6] [degree]. The angles are those defined by GEANT 3.12.
// Sets the rotation angles and matrix for a give layer, ladder
// and detector, via the Double precision array a[6] [degree]. The
// angles are those defined by GEANT 3.12.
- void SetByGeantAngles(const Int_t lay,const Int_t lad,const Int_t det,
+ void SetByGeantAngles(Int_t lay,Int_t lad,Int_t det,
const Double_t *ang){
SetByGeantAngles(GetModuleIndex(lay,lad,det),ang);}
//
// This function sets a new translation vector, given by the
// array x[3], for the Cartesian coordinate transformation
// for a give module index.
- void SetTrans(const Int_t index,Double_t x[]){
- fGm[index]->SetTranslation(x);}
+ void SetTrans(Int_t index,Double_t x[]){
+ GetGeomMatrix(index)->SetTranslation(x);}
// This function sets a new translation vector, given by the three
// variables x, y, and z, for the Cartesian coordinate transformation
// for the detector defined by layer, ladder and detector.
- void SetTrans(const Int_t lay,const Int_t lad,const Int_t det,
+ void SetTrans(Int_t lay,Int_t lad,Int_t det,
Float_t x,Float_t y,Float_t z){Double_t t[3];
t[0] = x;t[1] = y;t[2] = z;
SetTrans(GetModuleIndex(lay,lad,det),t);}
// and replaces it with the one specified. This is primarily used to
// changes the parameters to the segmentation class for a particular
// type of detector.
- void ReSetShape(const Int_t dtype,TObject *shp){
+ void ReSetShape(Int_t dtype,TObject *shp){
fShape->RemoveAt(dtype);fShape->AddAt(shp,dtype);}
//
// transformations
// defined by the layer, ladder, and detector numbers. The
// global and local coordinate are given in two floating point
// arrays g[3], and l[3].
- void GtoL(const Int_t lay,const Int_t lad,const Int_t det,
+ void GtoL(Int_t lay,Int_t lad,Int_t det,
const Float_t *g,Float_t *l){
GtoL(GetModuleIndex(lay,lad,det),g,l);}
// Transforms from the ALICE Global coordinate system
// to the detector local coordinate system for the detector
// module index number. The global and local coordinate are
// given in two floating point arrays g[3], and l[3].
- void GtoL(const Int_t index,const Float_t *g,Float_t *l){
+ void GtoL(Int_t index,const Float_t *g,Float_t *l){
Double_t dg[3],dl[3];Int_t i;for(i=0;i<3;i++) dg[i] = g[i];
- fGm[index]->GtoLPosition(dg,dl);
+ GetGeomMatrix(index)->GtoLPosition(dg,dl);
for(i=0;i<3;i++) l[i] =dl[i];}
// Transforms from the ALICE Global coordinate system
// to the detector local coordinate system for the detector
// defined by the layer, ladder, and detector numbers. The
// global and local coordinate are given in two Double point
// arrays g[3], and l[3].
- void GtoL(const Int_t lay,const Int_t lad,const Int_t det,
+ void GtoL(Int_t lay,Int_t lad,Int_t det,
const Double_t *g,Double_t *l){
GtoL(GetModuleIndex(lay,lad,det),g,l);}
// Transforms from the ALICE Global coordinate system
// to the detector local coordinate system for the detector
// module index number. The global and local coordinate are
// given in two Double point arrays g[3], and l[3].
- void GtoL(const Int_t index,const Double_t *g,Double_t *l){
+ void GtoL(Int_t index,const Double_t *g,Double_t *l){
Double_t dg[3],dl[3];Int_t i;for(i=0;i<3;i++) dg[i] = g[i];
- fGm[index]->GtoLPosition(dg,dl);
+ GetGeomMatrix(index)->GtoLPosition(dg,dl);
for(i=0;i<3;i++) l[i] =dl[i];}
//
// Transforms from the ALICE Global coordinate system
// to the detector local coordinate system (used for ITS tracking)
// for the detector module index number. The global and local
// coordinate are given in two Double point arrays g[3], and l[3].
- void GtoLtracking(const Int_t index,const Double_t *g,Double_t *l){
+ void GtoLtracking(Int_t index,const Double_t *g,Double_t *l){
if(IsGeantToTracking()) GtoL(index,g,l);
- else fGm[index]->GtoLPositionTracking(g,l);}
+ else GetGeomMatrix(index)->GtoLPositionTracking(g,l);}
// Transforms from the ALICE Global coordinate system
// to the detector local coordinate system (used for ITS tracking)
// for the detector id[3]. The global and local
// for the detector layer ladder and detector numbers. The global
// and local coordinate are given in two Double point arrays g[3],
// and l[3].
- void GtoLtracking(const Int_t lay,const Int_t lad,const Int_t det,
+ void GtoLtracking(Int_t lay,Int_t lad,Int_t det,
const Double_t *g,Double_t *l){
GtoLtracking(GetModuleIndex(lay,lad,det),g,l);}
//
// for the detector layer ladder and detector numbers. The global
// and local coordinate are given in two float point arrays g[3],
// and l[3].
- void GtoLMomentum(const Int_t lay,const Int_t lad,const Int_t det,
+ void GtoLMomentum(Int_t lay,Int_t lad,Int_t det,
const Float_t *g,Float_t *l){
GtoLMomentum(GetModuleIndex(lay,lad,det),g,l);}
// Transforms of momentum types of quantities from the ALICE
// Global coordinate system to the detector local coordinate system
// for the detector module index number. The global and local
// coordinate are given in two float point arrays g[3], and l[3].
- void GtoLMomentum(const Int_t index,const Float_t *g,Float_t *l){
+ void GtoLMomentum(Int_t index,const Float_t *g,Float_t *l){
Double_t dg[3],dl[3];Int_t i;for(i=0;i<3;i++) dg[i] = g[i];
- fGm[index]->GtoLMomentum(dg,dl);
+ GetGeomMatrix(index)->GtoLMomentum(dg,dl);
for(i=0;i<3;i++) l[i] =dl[i];}
// Transforms of momentum types of quantities from the ALICE
// Global coordinate system to the detector local coordinate system
// for the detector layer ladder and detector numbers. The global
// and local coordinate are given in two Double point arrays g[3],
// and l[3].
- void GtoLMomentum(const Int_t lay,const Int_t lad,const Int_t det,
+ void GtoLMomentum(Int_t lay,Int_t lad,Int_t det,
const Double_t *g,Double_t *l){
GtoLMomentum(GetModuleIndex(lay,lad,det),g,l);}
// Transforms of momentum types of quantities from the ALICE
// Global coordinate system to the detector local coordinate system
// for the detector module index number. The global and local
// coordinate are given in two Double point arrays g[3], and l[3].
- void GtoLMomentum(const Int_t index,const Double_t *g,Double_t *l){
+ void GtoLMomentum(Int_t index,const Double_t *g,Double_t *l){
Double_t dg[3],dl[3];Int_t i;for(i=0;i<3;i++) dg[i] = g[i];
- fGm[index]->GtoLMomentum(dg,dl);
+ GetGeomMatrix(index)->GtoLMomentum(dg,dl);
for(i=0;i<3;i++) l[i] =dl[i];}
//
// Transforms of momentum types of quantities from the ALICE
// (used for ITS tracking) for the detector module index number.
// The global and local coordinate are given in two Double point
// arrays g[3], and l[3].
- void GtoLMomentumTracking(const Int_t index,const Double_t *g,Double_t *l){
+ void GtoLMomentumTracking(Int_t index,const Double_t *g,Double_t *l){
if(IsGeantToTracking()) GtoLMomentum(index,g,l);
- else fGm[index]->GtoLMomentumTracking(g,l);}
+ else GetGeomMatrix(index)->GtoLMomentumTracking(g,l);}
// Transforms of momentum types of quantities from the ALICE
// Global coordinate system to the detector local coordinate system
// (used for ITS tracking) for the detector id[3].
// (used for ITS tracking) for the detector layer ladder and detector
// numbers. The global and local coordinate are given in two Double point
// arrays g[3], and l[3].
- void GtoLMomentumTracking(const Int_t lay,const Int_t lad,const Int_t det,
+ void GtoLMomentumTracking(Int_t lay,Int_t lad,Int_t det,
const Double_t *g,Double_t *l){
GtoLMomentumTracking(GetModuleIndex(lay,lad,det),g,l);}
//
// defined by the layer, ladder, and detector numbers. The
// global and local coordinate are given in two floating point
// arrays g[3], and l[3].
- void LtoG(const Int_t lay,const Int_t lad,const Int_t det,
+ void LtoG(Int_t lay,Int_t lad,Int_t det,
const Float_t *l,Float_t *g){
LtoG(GetModuleIndex(lay,lad,det),l,g);}
// Transforms from the detector local coordinate system
// to the ALICE Global coordinate system for the detector
// module index number. The global and local coordinate are
// given in two floating point arrays g[3], and l[3].
- void LtoG(const Int_t index,const Float_t *l,Float_t *g){
+ void LtoG(Int_t index,const Float_t *l,Float_t *g){
Double_t dg[3],dl[3];Int_t i;for(i=0;i<3;i++) dl[i] = l[i];
- fGm[index]->LtoGPosition(dl,dg);
+ GetGeomMatrix(index)->LtoGPosition(dl,dg);
for(i=0;i<3;i++) g[i] =dg[i];}
// Transforms from the detector local coordinate system
// to the ALICE Global coordinate system for the detector
// defined by the layer, ladder, and detector numbers. The
// global and local coordinate are given in two Double point
// arrays g[3], and l[3].
- void LtoG(const Int_t lay,const Int_t lad,const Int_t det,
+ void LtoG(Int_t lay,Int_t lad,Int_t det,
const Double_t *l,Double_t *g){
LtoG(GetModuleIndex(lay,lad,det),l,g);}
// Transforms from the detector local coordinate system
// to the ALICE Global coordinate system for the detector
// module index number. The global and local coordinate are
// given in two Double point arrays g[3], and l[3].
- void LtoG(const Int_t index,const Double_t *l,Double_t *g){
+ void LtoG(Int_t index,const Double_t *l,Double_t *g){
Double_t dg[3],dl[3];Int_t i;for(i=0;i<3;i++) dl[i] = l[i];
- fGm[index]->LtoGPosition(dl,dg);
+ GetGeomMatrix(index)->LtoGPosition(dl,dg);
for(i=0;i<3;i++) g[i] =dg[i];}
//
// Transforms from the detector local coordinate system (used
// for ITS tracking) to the ALICE Global coordinate system
// for the detector module index number. The global and local
// coordinate are given in two Double point arrays g[3], and l[3].
- void LtoGtracking(const Int_t index,const Double_t *l,Double_t *g){
+ void LtoGtracking(Int_t index,const Double_t *l,Double_t *g){
if(IsGeantToTracking()) LtoG(index,l,g);
- else fGm[index]->LtoGPositionTracking(l,g);}
+ else GetGeomMatrix(index)->LtoGPositionTracking(l,g);}
// Transforms from the detector local coordinate system (used
// for ITS tracking) to the ALICE Global coordinate system
// for the detector id[3]. The global and local
// for the detector layer ladder and detector numbers. The global
// and local coordinate are given in two Double point arrays g[3],
// and l[3].
- void LtoGtracking(const Int_t lay,const Int_t lad,const Int_t det,
+ void LtoGtracking(Int_t lay,Int_t lad,Int_t det,
const Double_t *l,Double_t *g){
LtoGtracking(GetModuleIndex(lay,lad,det),l,g);}
//
// for the detector layer ladder and detector numbers. The global
// and local coordinate are given in two float point arrays g[3],
// and l[3].
- void LtoGMomentum(const Int_t lay,const Int_t lad,const Int_t det,
+ void LtoGMomentum(Int_t lay,Int_t lad,Int_t det,
const Float_t *l,Float_t *g){
LtoGMomentum(GetModuleIndex(lay,lad,det),l,g);}
// Transforms of momentum types of quantities from the detector
// local coordinate system to the ALICE Global coordinate system
// for the detector module index number. The global and local
// coordinate are given in two float point arrays g[3], and l[3].
- void LtoGMomentum(const Int_t index,const Float_t *l,Float_t *g){
+ void LtoGMomentum(Int_t index,const Float_t *l,Float_t *g){
Double_t dg[3],dl[3];Int_t i;for(i=0;i<3;i++) dl[i] = l[i];
- fGm[index]->LtoGMomentum(dl,dg);
+ GetGeomMatrix(index)->LtoGMomentum(dl,dg);
for(i=0;i<3;i++) g[i] =dg[i];}
// Transforms of momentum types of quantities from the detector
// local coordinate system to the ALICE Global coordinate system
// for the detector layer ladder and detector numbers. The global
// and local coordinate are given in two Double point arrays g[3],
// and l[3].
- void LtoGMomentum(const Int_t lay,const Int_t lad,const Int_t det,
+ void LtoGMomentum(Int_t lay,Int_t lad,Int_t det,
const Double_t *l,Double_t *g){
LtoGMomentum(GetModuleIndex(lay,lad,det),l,g);}
// Transforms of momentum types of quantities from the detector
// local coordinate system to the ALICE Global coordinate system
// for the detector module index number. The global and local
// coordinate are given in two Double point arrays g[3], and l[3].
- void LtoGMomentum(const Int_t index,const Double_t *l,Double_t *g){
- fGm[index]->LtoGMomentum(l,g);}
+ void LtoGMomentum(Int_t index,const Double_t *l,Double_t *g){
+ GetGeomMatrix(index)->LtoGMomentum(l,g);}
//
// Transforms of momentum types of quantities from the detector
// local coordinate system (used for ITS tracking) to the detector
// system ALICE Global for the detector module index number.
// The global and local coordinate are given in two Double point
// arrays g[3], and l[3].
- void LtoGMomentumTracking(const Int_t index,const Double_t *l,Double_t *g){
+ void LtoGMomentumTracking(Int_t index,const Double_t *l,Double_t *g){
if(IsGeantToTracking()) LtoGMomentum(index,l,g);
- else fGm[index]->LtoGMomentumTracking(l,g);}
+ else GetGeomMatrix(index)->LtoGMomentumTracking(l,g);}
// Transforms of momentum types of quantities from the detector
// local coordinate system (used for ITS tracking) to the ALICE
// Global coordinate system for the detector id[3].
// Global coordinate system for the detector layer ladder and detector
// numbers. The global and local coordinate are given in two Double point
// arrays g[3], and l[3].
- void LtoGMomentumTracking(const Int_t lay,const Int_t lad,const Int_t det,
+ void LtoGMomentumTracking(Int_t lay,Int_t lad,Int_t det,
const Double_t *l,Double_t *g){
LtoGMomentumTracking(GetModuleIndex(lay,lad,det),l,g);}
//
// module index1 number to the detector module index2 number. The
// local coordinates are given in two Double point arrays l1[3],
// and l2[3].
- void LtoL(const Int_t index1,const Int_t index2,Double_t *l1,Double_t *l2){
+ void LtoL(Int_t index1,Int_t index2,Double_t *l1,Double_t *l2){
Double_t g[3]; LtoG(index1,l1,g);GtoL(index2,g,l2);}
// Transforms from one detector local coordinate system
// to another detector local coordinate system for the detector
// for ITS tracking) for the detector module index1 number to the
// detector module index2 number. The local coordinates are given
// in two Double point arrays l1[3], and l2[3].
- void LtoLtracking(const Int_t index1,const Int_t index2,
+ void LtoLtracking(Int_t index1,Int_t index2,
Double_t *l1,Double_t *l2){
Double_t g[3]; LtoGtracking(index1,l1,g);GtoLtracking(index2,g,l2);}
// Transforms from one detector local coordinate system (used for
// system for the detector module index1 number to the detector
// module index2 number. The local coordinates are given in two
// Double point arrays l1[3], and l2[3].
- void LtoLMomentum(const Int_t index1,const Int_t index2,
+ void LtoLMomentum(Int_t index1,Int_t index2,
const Double_t *l1,Double_t *l2){
Double_t g[3]; LtoGMomentum(index1,l1,g);GtoLMomentum(index2,g,l2);}
// Transforms of momentum types of quantities from one detector
// module index1 number to the detector module index2 number. The
// local coordinates are given in two Double point arrays l1[3],
// and l2[3].
- void LtoLMomentumTracking(const Int_t index1,const Int_t index2,
+ void LtoLMomentumTracking(Int_t index1,Int_t index2,
Double_t *l1,Double_t *l2){
Double_t g[3]; LtoGMomentumTracking(index1,l1,g);
GtoLMomentumTracking(index2,g,l2);}
// the ALICE Global coordinate system to a detector local coordinate
// system. The specific detector is determined by the module index
// number.
- void GtoLErrorMatrix(const Int_t index,const Double_t **g,Double_t **l){
- fGm[index]->GtoLPositionError((Double_t (*)[3])g,(Double_t (*)[3])l);}
+ void GtoLErrorMatrix(Int_t index,const Double_t **g,Double_t **l){
+ GetGeomMatrix(index)->GtoLPositionError((Double_t (*)[3])g,(Double_t (*)[3])l);}
//
// Transforms a matrix, like an Uncertainty or Error matrix from
// the ALICE Global coordinate system to a detector local coordinate
// system (used by ITS tracking). The specific detector is determined
// by the module index number.
- void GtoLErrorMatrixTracking(const Int_t index,const Double_t **g,
+ void GtoLErrorMatrixTracking(Int_t index,const Double_t **g,
Double_t **l){
- if(IsGeantToTracking()) fGm[index]->GtoLPositionError((
+ if(IsGeantToTracking()) GetGeomMatrix(index)->GtoLPositionError((
Double_t (*)[3])g,(Double_t (*)[3])l);
- else fGm[index]->GtoLPositionErrorTracking(
+ else GetGeomMatrix(index)->GtoLPositionErrorTracking(
(Double_t (*)[3])g,(Double_t (*)[3])l);}
//
// Transforms a matrix, like an Uncertainty or Error matrix from
// the detector local coordinate system to a ALICE Global coordinate
// system. The specific detector is determined by the module index
// number.
- void LtoGErrorMatrix(const Int_t index,const Double_t **l,Double_t **g){
- fGm[index]->LtoGPositionError((Double_t (*)[3])l,(Double_t (*)[3])g);}
+ void LtoGErrorMatrix(Int_t index,const Double_t **l,Double_t **g){
+ GetGeomMatrix(index)->LtoGPositionError((Double_t (*)[3])l,(Double_t (*)[3])g);}
//
// Transforms a matrix, like an Uncertainty or Error matrix from
// the detector local coordinate system (used by ITS tracking) to a
// ALICE Global coordinate system. The specific detector is determined
// by the module index number.
- void LtoGErrorMatrixTracking(const Int_t index,const Double_t **l,
+ void LtoGErrorMatrixTracking(Int_t index,const Double_t **l,
Double_t **g){
- if(IsGeantToTracking()) fGm[index]->LtoGPositionError((
+ if(IsGeantToTracking()) GetGeomMatrix(index)->LtoGPositionError((
Double_t (*)[3])g,(Double_t (*)[3])l);
- else fGm[index]->LtoGPositionErrorTracking((Double_t (*)[3])l,
+ else GetGeomMatrix(index)->LtoGPositionErrorTracking((Double_t (*)[3])l,
(Double_t (*)[3])g);}
//
// Transforms a matrix, like an Uncertainty or Error matrix from
// one detector local coordinate system to another detector local
// coordinate system. The specific detector is determined by the
// two module index number index1 and index2.
- void LtoLErrorMatrix(const Int_t index1,const Int_t index2,
+ void LtoLErrorMatrix(Int_t index1,Int_t index2,
const Double_t **l1,Double_t **l2){
Double_t g[3][3];
LtoGErrorMatrix(index1,l1,(Double_t **)g);
// another detector local coordinate system (used by ITS tracking).
// The specific detector is determined by the two module index number
// index1 and index2.
- void LtoLErrorMatrixTraking(const Int_t index1,const Int_t index2,
+ void LtoLErrorMatrixTraking(Int_t index1,Int_t index2,
const Double_t **l1,Double_t **l2){Double_t g[3][3];
LtoGErrorMatrixTracking(index1,l1,(Double_t **)g);
GtoLErrorMatrixTracking(index2,(const Double_t **)g,l2);}
// Find Specific Modules
- Int_t GetNearest(const Double_t g[3],const Int_t lay=0);
- void GetNearest27(const Double_t g[3],Int_t n[27],const Int_t lay=0);
+ // Locate the nearest module to the point g, in ALICE global Cartesian
+ // coordinates [cm] in a give layer. If layer = 0 then it search in
+ // all layers.
+ Int_t GetNearest(const Double_t g[3],Int_t lay=0);
+ // Locates the nearest 27 modules, in nearest order, to the point g, in
+ // ALICE global Cartesian coordinates [cm] in a give layer. If layer = 0
+ // then it searches in all layers. (there are 27 elements in a 3x3x3
+ // cube.
+ void GetNearest27(const Double_t g[3],Int_t n[27],Int_t lay=0);
// Returns the distance [cm] between the point g[3] and the center of
// the detector/module specified by the the module index number.
- Double_t Distance(const Int_t index,const Double_t g[3]){
- return TMath::Sqrt(fGm[index]->Distance2(g));}
+ Double_t Distance(Int_t index,const Double_t g[3]){
+ return TMath::Sqrt(GetGeomMatrix(index)->Distance2(g));}
// Geometry manipulation
+ // This function performs a Cartesian translation and rotation of
+ // the full ITS from its default position by an amount determined by
+ // the three element arrays tran and rot.
void GlobalChange(const Float_t *tran,const Float_t *rot);
+ // This function performs a Cylindrical translation and rotation of
+ // the full ITS from its default position by an amount determined by
+ // the three element arrays tran and rot.
void GlobalCylindericalChange(const Float_t *tran,const Float_t *rot);
+ // This function performs a Gaussian random displacement and/or
+ // rotation about the present global position of each active
+ // volume/detector of the ITS with variances given by stran and srot.
void RandomChange(const Float_t *stran,const Float_t *srot);
+ // This function performs a Gaussian random displacement and/or
+ // rotation about the present global position of each active
+ // volume/detector of the ITS with variances given by stran and srot.
+ // But in Cylindrical coordinates.
void RandomCylindericalChange(const Float_t *stran,const Float_t *srot);
+ // This function converts these transformations from Alice global and
+ // local to Tracking global and local.
void GeantToTracking(AliITSgeom &source); // This converts the geometry
// Other routines.
+ // This routine prints, to a file, the difference between this class
+ // and "other".
void PrintComparison(FILE *fp,AliITSgeom *other);
- void PrintData(FILE *fp,const Int_t lay,const Int_t lad,const Int_t det);
+ // This routine prints, to a file, the contents of this class.
+ void PrintData(FILE *fp,Int_t lay,Int_t lad,Int_t det);
+ // This function prints out this class in a single stream. This steam
+ // can be read by ReadGeom.
ofstream &PrintGeom(ofstream &out);
+ // This function reads in that single steam printed out by PrintGeom.
ifstream &ReadGeom(ifstream &in);
private:
- Int_t fTrans; //Flag to keep track of which transformation
- Int_t fNlayers; //The number of layers.
- Int_t *fNlad; //Array of the number of ladders/layer(layer)
- Int_t *fNdet; //Array of the number of detectors/ladder(layer)
- AliITSgeomMatrix **fGm; //[fNmodules] Structure of trans. and rotation.
- TObjArray *fShape; //Array of shapes and detector information.
- Int_t fNmodules;//The total number of modules
-
+ char fVersion[20];// Transformation version.
+ Int_t fTrans; // Flag to keep track of which transformation
+ Int_t fNmodules;// The total number of modules
+ Int_t fNlayers; // The number of layers.
+ Int_t *fNlad; //[fNlayers] Array of the number of ladders/layer(layer)
+ Int_t *fNdet;//[fNlayers] Array of the number of detector/ladder(layer)
+ TObjArray *fGm; // Structure of translation. and rotation.
+ TObjArray *fShape; // Array of shapes and detector information.
+
ClassDef(AliITSgeom,2) // ITS geometry class
};
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff