fLastIndex(0),
fArrayIndex(0),
fIsIndexBuilt(kFALSE),
+ fAlignObjs(0),
+ fMisalignObjs(0),
fTrackFitter(0),
- fMinimizer(0)
+ fMinimizer(0),
+ fDoUpdate(kTRUE)
{
// Default constructor
InitIndex();
fLastIndex(0),
fArrayIndex(0),
fIsIndexBuilt(kFALSE),
+ fAlignObjs(0),
+ fMisalignObjs(0),
fTrackFitter(0),
- fMinimizer(0)
+ fMinimizer(0),
+ fDoUpdate(kTRUE)
{
// Constructor in the case
// the user provides an already
//______________________________________________________________________________
AliAlignmentTracks::AliAlignmentTracks(const char *esdfilename, const char *esdtreename):
+ fESDChain(new TChain(esdtreename)),
fPointsFilename("AliTrackPoints.root"),
fPointsFile(0),
fPointsTree(0),
fLastIndex(0),
fArrayIndex(0),
fIsIndexBuilt(kFALSE),
+ fAlignObjs(0),
+ fMisalignObjs(0),
fTrackFitter(0),
- fMinimizer(0)
+ fMinimizer(0),
+ fDoUpdate(kTRUE)
{
// Constructor in the case
// the user provides a single ESD file
// or a directory containing ESD files
- fESDChain = new TChain(esdtreename);
fESDChain->Add(esdfilename);
InitIndex();
InitAlignObjs();
}
-//______________________________________________________________________________
-AliAlignmentTracks::AliAlignmentTracks(const AliAlignmentTracks &alignment):
- TObject(alignment)
-{
- // Copy constructor
- // not implemented
- AliWarning("Copy constructor not implemented!");
-}
-
-//______________________________________________________________________________
-AliAlignmentTracks& AliAlignmentTracks::operator= (const AliAlignmentTracks& alignment)
-{
- // Asignment operator
- // not implemented
- if(this==&alignment) return *this;
-
- AliWarning("Asignment operator not implemented!");
-
- ((TObject *)this)->operator=(alignment);
-
- return *this;
-}
//______________________________________________________________________________
AliAlignmentTracks::~AliAlignmentTracks()
}
TTree *pointsTree = new TTree("spTree", "Tree with track space point arrays");
- AliTrackPointArray *array = 0;
+ const AliTrackPointArray *array = 0;
pointsTree->Branch("SP","AliTrackPointArray", &array);
-
Int_t ievent = 0;
while (fESDChain->GetEntry(ievent++)) {
if (!esd) break;
AliESDtrack * track = esd->GetTrack(itrack);
if (!track) continue;
- UInt_t status = AliESDtrack::kITSpid;
- status|=AliESDtrack::kTPCpid;
- status|=AliESDtrack::kTRDpid;
- if ((track->GetStatus() & status) != status) continue;
+ // UInt_t status = AliESDtrack::kITSpid;
+// status|=AliESDtrack::kTPCpid;
+// status|=AliESDtrack::kTRDpid;
+// if ((track->GetStatus() & status) != status) continue;
if (track->GetP() < 0.5) continue;
{
// Build index of points tree entries
// Used for access based on the volume IDs
- if (fIsIndexBuilt)
- ResetIndex();
- else
- fIsIndexBuilt = kTRUE;
+ if (fIsIndexBuilt) return;
+
+ fIsIndexBuilt = kTRUE;
+
+ // Dummy object is created in order
+ // to initialize the volume paths
+ AliAlignObjAngles alobj;
TFile *fPointsFile = TFile::Open(fPointsFilename);
if (!fPointsFile || !fPointsFile->IsOpen()) {
// AliTrackPointArray* array = new AliTrackPointArray;
AliTrackPointArray* array = 0;
- TTree* pointsTree = (TTree*) fPointsFile->Get("spTree");
- if (!pointsTree) {
+ fPointsTree = (TTree*) fPointsFile->Get("spTree");
+ if (!fPointsTree) {
AliWarning("No pointsTree found!");
return;
}
- pointsTree->SetBranchAddress("SP", &array);
+ fPointsTree->SetBranchAddress("SP", &array);
- Int_t nArrays = pointsTree->GetEntries();
+ Int_t nArrays = fPointsTree->GetEntries();
for (Int_t iArray = 0; iArray < nArrays; iArray++)
{
- pointsTree->GetEvent(iArray);
+ fPointsTree->GetEvent(iArray);
if (!array) continue;
for (Int_t ipoint = 0; ipoint < array->GetNPoints(); ipoint++) {
UShort_t volId = array->GetVolumeID()[ipoint];
+ // check if the volId is valid
+ if (!AliAlignObj::SymName(volId)) {
+ AliError(Form("The volume id %d has no default volume name !",
+ volId));
+ continue;
+ }
Int_t modId;
Int_t layerId = AliAlignObj::VolUIDToLayer(volId,modId)
- AliAlignObj::kFirstLayer;
}
-// //______________________________________________________________________________
-// void AliAlignmentTracks::BuildIndexLayer(AliAlignObj::ELayerID layer)
-// {
-// }
-
-// //______________________________________________________________________________
-// void AliAlignmentTracks::BuildIndexVolume(UShort_t volid)
-// {
-// }
-
//______________________________________________________________________________
void AliAlignmentTracks::InitIndex()
{
fLastIndex = new Int_t*[nLayers];
fArrayIndex = new TArrayI**[nLayers];
for (Int_t iLayer = 0; iLayer < (AliAlignObj::kLastLayer - AliAlignObj::kFirstLayer); iLayer++) {
- fLastIndex[iLayer] = new Int_t[AliAlignObj::LayerSize(iLayer)];
- fArrayIndex[iLayer] = new TArrayI*[AliAlignObj::LayerSize(iLayer)];
- for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer); iModule++) {
+ fLastIndex[iLayer] = new Int_t[AliAlignObj::LayerSize(iLayer + AliAlignObj::kFirstLayer)];
+ fArrayIndex[iLayer] = new TArrayI*[AliAlignObj::LayerSize(iLayer + AliAlignObj::kFirstLayer)];
+ for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer + AliAlignObj::kFirstLayer); iModule++) {
fLastIndex[iLayer][iModule] = 0;
fArrayIndex[iLayer][iModule] = 0;
}
{
// Reset the value of the last filled index
// Do not realocate memory
- for (Int_t iLayer = AliAlignObj::kFirstLayer; iLayer < AliAlignObj::kLastLayer; iLayer++) {
- for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer); iModule++) {
+
+ fIsIndexBuilt = kFALSE;
+
+ for (Int_t iLayer = 0; iLayer < AliAlignObj::kLastLayer - AliAlignObj::kFirstLayer; iLayer++) {
+ for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer + AliAlignObj::kFirstLayer); iModule++) {
fLastIndex[iLayer][iModule] = 0;
}
}
// Delete the index arrays
// Called by the destructor
for (Int_t iLayer = 0; iLayer < (AliAlignObj::kLastLayer - AliAlignObj::kFirstLayer); iLayer++) {
- for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer); iModule++) {
+ for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer + AliAlignObj::kFirstLayer); iModule++) {
if (fArrayIndex[iLayer][iModule]) {
delete fArrayIndex[iLayer][iModule];
fArrayIndex[iLayer][iModule] = 0;
}
//______________________________________________________________________________
-Bool_t AliAlignmentTracks::ReadAlignObjs(const char *alignobjfilename)
+Bool_t AliAlignmentTracks::ReadAlignObjs(const char *alignObjFileName, const char* arrayName)
{
// Read alignment object from a file
// To be replaced by a call to CDB
- AliWarning(Form("Method not yet implemented (%s) !",alignobjfilename));
+ AliWarning(Form("Method not yet implemented (%s in %s) !",arrayName,alignObjFileName));
return kFALSE;
}
Int_t nLayers = AliAlignObj::kLastLayer - AliAlignObj::kFirstLayer;
fAlignObjs = new AliAlignObj**[nLayers];
for (Int_t iLayer = 0; iLayer < (AliAlignObj::kLastLayer - AliAlignObj::kFirstLayer); iLayer++) {
- fAlignObjs[iLayer] = new AliAlignObj*[AliAlignObj::LayerSize(iLayer)];
- for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer); iModule++)
- fAlignObjs[iLayer][iModule] = new AliAlignObjAngles;
+ fAlignObjs[iLayer] = new AliAlignObj*[AliAlignObj::LayerSize(iLayer + AliAlignObj::kFirstLayer)];
+ for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer + AliAlignObj::kFirstLayer); iModule++) {
+ UShort_t volid = AliAlignObj::LayerToVolUID(iLayer+ AliAlignObj::kFirstLayer,iModule);
+ fAlignObjs[iLayer][iModule] = new AliAlignObjAngles("",volid,0,0,0,0,0,0,kTRUE);
+ }
}
}
{
// Reset the alignment objects array
for (Int_t iLayer = 0; iLayer < (AliAlignObj::kLastLayer - AliAlignObj::kFirstLayer); iLayer++) {
- for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer); iModule++)
+ for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer + AliAlignObj::kFirstLayer); iModule++)
fAlignObjs[iLayer][iModule]->SetPars(0,0,0,0,0,0);
}
}
{
// Delete the alignment objects array
for (Int_t iLayer = 0; iLayer < (AliAlignObj::kLastLayer - AliAlignObj::kFirstLayer); iLayer++) {
- for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer); iModule++)
+ for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer + AliAlignObj::kFirstLayer); iModule++)
if (fAlignObjs[iLayer][iModule])
delete fAlignObjs[iLayer][iModule];
delete [] fAlignObjs[iLayer];
}
delete [] fAlignObjs;
+ fAlignObjs = 0;
}
-//______________________________________________________________________________
-void AliAlignmentTracks::Align(Int_t iterations)
+void AliAlignmentTracks::AlignDetector(AliAlignObj::ELayerID firstLayer,
+ AliAlignObj::ELayerID lastLayer,
+ AliAlignObj::ELayerID layerRangeMin,
+ AliAlignObj::ELayerID layerRangeMax,
+ Int_t iterations)
{
- // This method is just an example
- // how one can user AlignLayer and
- // AlignVolume methods to construct
- // a custom alignment procedure
+ // Align detector volumes within
+ // a given layer range
+ // (could be whole detector).
+ // Tracks are fitted only within
+ // the range defined by the user.
+ Int_t nModules = 0;
+ for (Int_t iLayer = firstLayer; iLayer < lastLayer; iLayer++)
+ nModules += AliAlignObj::LayerSize(iLayer);
+ TArrayI volIds(nModules);
+
+ Int_t modnum = 0;
+ for (Int_t iLayer = firstLayer; iLayer < lastLayer; iLayer++) {
+ for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer); iModule++) {
+ UShort_t volId = AliAlignObj::LayerToVolUID(iLayer,iModule);
+ volIds.AddAt(volId,modnum);
+ modnum++;
+ }
+ }
+
while (iterations > 0) {
- // First inward pass
- AlignLayer(AliAlignObj::kTPC1);
- AlignLayer(AliAlignObj::kSSD2);
- AlignLayer(AliAlignObj::kSSD1);
- AlignLayer(AliAlignObj::kSDD2);
- AlignLayer(AliAlignObj::kSDD1);
- AlignLayer(AliAlignObj::kSPD2);
- AlignLayer(AliAlignObj::kSPD1);
- // Outward pass
- AlignLayer(AliAlignObj::kSPD2);
- AlignLayer(AliAlignObj::kSDD1);
- AlignLayer(AliAlignObj::kSDD2);
- AlignLayer(AliAlignObj::kSSD1);
- AlignLayer(AliAlignObj::kSSD2);
- AlignLayer(AliAlignObj::kTPC1);
- AlignLayer(AliAlignObj::kTPC2);
- AlignLayer(AliAlignObj::kTRD1);
- AlignLayer(AliAlignObj::kTRD2);
- AlignLayer(AliAlignObj::kTRD3);
- AlignLayer(AliAlignObj::kTRD4);
- AlignLayer(AliAlignObj::kTRD5);
- AlignLayer(AliAlignObj::kTRD6);
- AlignLayer(AliAlignObj::kTOF);
- // Again inward
- AlignLayer(AliAlignObj::kTRD6);
- AlignLayer(AliAlignObj::kTRD5);
- AlignLayer(AliAlignObj::kTRD4);
- AlignLayer(AliAlignObj::kTRD3);
- AlignLayer(AliAlignObj::kTRD2);
- AlignLayer(AliAlignObj::kTRD1);
- AlignLayer(AliAlignObj::kTPC2);
+ AlignVolumes(&volIds,0x0,layerRangeMin,layerRangeMax);
+ iterations--;
}
}
// a given layer.
// Tracks are fitted only within
// the range defined by the user.
+ Int_t nModules = AliAlignObj::LayerSize(layer);
+ TArrayI volIds(nModules);
+ for (Int_t iModule = 0; iModule < nModules; iModule++) {
+ UShort_t volId = AliAlignObj::LayerToVolUID(layer,iModule);
+ volIds.AddAt(volId,iModule);
+ }
+
while (iterations > 0) {
- for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(layer); iModule++) {
- UShort_t volId = AliAlignObj::LayerToVolUID(layer,iModule);
- AlignVolume(volId,layerRangeMin,layerRangeMax);
- }
+ AlignVolumes(&volIds,0x0,layerRangeMin,layerRangeMax);
iterations--;
}
}
//______________________________________________________________________________
-void AliAlignmentTracks::AlignVolume(UShort_t volid,
- AliAlignObj::ELayerID layerRangeMin,
- AliAlignObj::ELayerID layerRangeMax)
+void AliAlignmentTracks::AlignVolume(UShort_t volId, UShort_t volIdFit,
+ Int_t iterations)
{
- // Align a single detector volume.
+ // Align single detector volume to
+ // another volume.
// Tracks are fitted only within
- // the range defined by the user.
+ // the second volume.
+ TArrayI volIds(1);
+ volIds.AddAt(volId,0);
+ TArrayI volIdsFit(1);
+ volIdsFit.AddAt(volIdFit,0);
- // First take the alignment object to be updated
- Int_t iModule;
- AliAlignObj::ELayerID iLayer = AliAlignObj::VolUIDToLayer(volid,iModule);
- AliAlignObj *alignObj = fAlignObjs[iLayer][iModule];
+ while (iterations > 0) {
+ AlignVolumes(&volIds,&volIdsFit);
+ iterations--;
+ }
+}
+
+//______________________________________________________________________________
+void AliAlignmentTracks::AlignVolumes(const TArrayI *volids, const TArrayI *volidsfit,
+ AliAlignObj::ELayerID layerRangeMin,
+ AliAlignObj::ELayerID layerRangeMax,
+ Int_t iterations)
+{
+ // Align a set of detector volumes.
+ // Tracks are fitted only within
+ // the range defined by the user
+ // (by layerRangeMin and layerRangeMax)
+ // or within the set of volidsfit
+ // Repeat the procedure 'iterations' times
+
+ Int_t nVolIds = volids->GetSize();
+ if (nVolIds == 0) {
+ AliError("Volume IDs array is empty!");
+ return;
+ }
- // Then load only the tracks with at least one
- // space point in the volume (volid)
+ // Load only the tracks with at least one
+ // space point in the set of volume (volids)
BuildIndex();
AliTrackPointArray **points;
- Int_t nArrays = LoadPoints(volid, points);
- if (nArrays == 0) return;
-
- AliTrackResiduals *minimizer = CreateMinimizer();
- minimizer->SetNTracks(nArrays);
- minimizer->SetAlignObj(alignObj);
- AliTrackFitter *fitter = CreateFitter();
- for (Int_t iArray = 0; iArray < nArrays; iArray++) {
- fitter->SetTrackPointArray(points[iArray], kFALSE);
- AliTrackPointArray *pVolId = 0, *pTrack = 0;
- fitter->Fit(volid,pVolId,pTrack,layerRangeMin,layerRangeMax);
- minimizer->AddTrackPointArrays(pVolId,pTrack);
- }
- minimizer->Minimize();
+ // Start the iterations
+ while (iterations > 0) {
+ Int_t nArrays = LoadPoints(volids, points);
+ if (nArrays == 0) return;
+
+ AliTrackResiduals *minimizer = CreateMinimizer();
+ minimizer->SetNTracks(nArrays);
+ minimizer->InitAlignObj();
+ AliTrackFitter *fitter = CreateFitter();
+ for (Int_t iArray = 0; iArray < nArrays; iArray++) {
+ if (!points[iArray]) continue;
+ fitter->SetTrackPointArray(points[iArray], kFALSE);
+ if (fitter->Fit(volids,volidsfit,layerRangeMin,layerRangeMax) == kFALSE) continue;
+ AliTrackPointArray *pVolId,*pTrack;
+ fitter->GetTrackResiduals(pVolId,pTrack);
+ minimizer->AddTrackPointArrays(pVolId,pTrack);
+ }
+ minimizer->Minimize();
+
+ // Update the alignment object(s)
+ if (fDoUpdate) for (Int_t iVolId = 0; iVolId < nVolIds; iVolId++) {
+ UShort_t volid = (*volids)[iVolId];
+ Int_t iModule;
+ AliAlignObj::ELayerID iLayer = AliAlignObj::VolUIDToLayer(volid,iModule);
+ AliAlignObj *alignObj = fAlignObjs[iLayer-AliAlignObj::kFirstLayer][iModule];
+ *alignObj *= *minimizer->GetAlignObj();
+ alignObj->Print("");
+ }
- UnloadPoints(nArrays, points);
+ UnloadPoints(nArrays, points);
+
+ iterations--;
+ }
}
//______________________________________________________________________________
-Int_t AliAlignmentTracks::LoadPoints(UShort_t volid, AliTrackPointArray** &points)
+Int_t AliAlignmentTracks::LoadPoints(const TArrayI *volids, AliTrackPointArray** &points)
{
// Load track point arrays with at least
- // one space point in a given detector
- // volume (volid).
+ // one space point in a given set of detector
+ // volumes (array volids).
// Use the already created tree index for
// fast access.
- Int_t iModule;
- AliAlignObj::ELayerID iLayer = AliAlignObj::VolUIDToLayer(volid,iModule);
- Int_t nArrays = fLastIndex[iLayer][iModule];
- // In case of empty index
- if (nArrays == 0) {
+ if (!fPointsTree) {
+ AliError("Tree with the space point arrays not initialized!");
points = 0;
return 0;
}
- if (!fPointsTree) {
- AliWarning("Tree with the space point arrays not initialized!");
+ Int_t nVolIds = volids->GetSize();
+ if (nVolIds == 0) {
+ AliError("Volume IDs array is empty!");
points = 0;
return 0;
}
- AliAlignObj *alignObj = fAlignObjs[iLayer][iModule];
- TGeoHMatrix m;
- alignObj->GetMatrix(m);
- Double_t *rot = m.GetRotationMatrix();
- Double_t *tr = m.GetTranslation();
+ Int_t nArrays = 0;
+ for (Int_t iVolId = 0; iVolId < nVolIds; iVolId++) {
+ UShort_t volid = (*volids)[iVolId];
+ Int_t iModule;
+ AliAlignObj::ELayerID iLayer = AliAlignObj::VolUIDToLayer(volid,iModule);
+
+ // In case of empty index
+ if (fLastIndex[iLayer-AliAlignObj::kFirstLayer][iModule] == 0) {
+ AliWarning(Form("There are no space-points belonging to the volume which is to be aligned (Volume ID =%d)!",volid));
+ continue;
+ }
+ nArrays += fLastIndex[iLayer-AliAlignObj::kFirstLayer][iModule];
+ }
+
+ if (nArrays == 0) {
+ AliError("There are no space-points belonging to all of the volumes which are to be aligned!");
+ points = 0;
+ return 0;
+ }
AliTrackPointArray* array = 0;
fPointsTree->SetBranchAddress("SP", &array);
+ // Allocate the pointer to the space-point arrays
points = new AliTrackPointArray*[nArrays];
- TArrayI *index = fArrayIndex[iLayer][iModule];
- AliTrackPoint p;
- Float_t xyz[3],cov[6];
- Float_t newxyz[3];
- for (Int_t iArray = 0; iArray < nArrays; iArray++) {
- fPointsTree->GetEvent((*index)[iArray]);
- if (!array) {
- AliWarning("Wrong space point array index!");
- continue;
- }
- Int_t nPoints = array->GetNPoints();
- points[iArray] = new AliTrackPointArray(nPoints);
- for (Int_t iPoint = 0; iPoint < nPoints; iPoint++) {
- array->GetPoint(p,iPoint);
- p.GetXYZ(xyz,cov);
- for (Int_t i = 0; i < 3; i++)
- newxyz[i] = tr[i]
- + xyz[0]*rot[3*i]
- + xyz[1]*rot[3*i+1]
- + xyz[2]*rot[3*i+2];
- p.SetXYZ(newxyz,cov);
- points[iArray]->AddPoint(iPoint,&p);
+ for (Int_t i = 0; i < nArrays; i++) points[i] = 0x0;
+
+ // Init the array used to flag already loaded tree entries
+ Bool_t *indexUsed = new Bool_t[fPointsTree->GetEntries()];
+ for (Int_t i = 0; i < fPointsTree->GetEntries(); i++)
+ indexUsed[i] = kFALSE;
+
+ // Start the loop over the volume ids
+ Int_t iArray = 0;
+ for (Int_t iVolId = 0; iVolId < nVolIds; iVolId++) {
+ UShort_t volid = (*volids)[iVolId];
+ Int_t iModule;
+ AliAlignObj::ELayerID iLayer = AliAlignObj::VolUIDToLayer(volid,iModule);
+
+ Int_t nArraysId = fLastIndex[iLayer-AliAlignObj::kFirstLayer][iModule];
+ TArrayI *index = fArrayIndex[iLayer-AliAlignObj::kFirstLayer][iModule];
+ AliTrackPoint p;
+
+ for (Int_t iArrayId = 0; iArrayId < nArraysId; iArrayId++) {
+
+ // Get tree entry
+ Int_t entry = (*index)[iArrayId];
+ if (indexUsed[entry] == kTRUE) continue;
+ fPointsTree->GetEvent(entry);
+ if (!array) {
+ AliWarning("Wrong space point array index!");
+ continue;
+ }
+ indexUsed[entry] = kTRUE;
+
+ // Get the space-point array
+ Int_t nPoints = array->GetNPoints();
+ points[iArray] = new AliTrackPointArray(nPoints);
+ for (Int_t iPoint = 0; iPoint < nPoints; iPoint++) {
+ array->GetPoint(p,iPoint);
+ Int_t modnum;
+ AliAlignObj::ELayerID layer = AliAlignObj::VolUIDToLayer(p.GetVolumeID(),modnum);
+ // check if the layer id is valid
+ if ((layer < AliAlignObj::kFirstLayer) ||
+ (layer >= AliAlignObj::kLastLayer)) {
+ AliError(Form("Layer index is invalid: %d (%d -> %d) !",
+ layer,AliAlignObj::kFirstLayer,AliAlignObj::kLastLayer-1));
+ continue;
+ }
+ if ((modnum >= AliAlignObj::LayerSize(layer)) ||
+ (modnum < 0)) {
+ AliError(Form("Module number inside layer %d is invalid: %d (0 -> %d)",
+ layer,modnum,AliAlignObj::LayerSize(layer)));
+ continue;
+ }
+
+ // Misalignment is introduced here
+ // Switch it off in case of real
+ // alignment job!
+ if (fMisalignObjs) {
+ AliAlignObj *misalignObj = fMisalignObjs[layer-AliAlignObj::kFirstLayer][modnum];
+ if (misalignObj)
+ misalignObj->Transform(p);
+ }
+ // End of misalignment
+
+ AliAlignObj *alignObj = fAlignObjs[layer-AliAlignObj::kFirstLayer][modnum];
+ alignObj->Transform(p);
+ points[iArray]->AddPoint(iPoint,&p);
+ }
+ iArray++;
}
}
+
+ delete [] indexUsed;
+
return nArrays;
}
return fMinimizer;
}
+
+//______________________________________________________________________________
+Bool_t AliAlignmentTracks::Misalign(const char *misalignObjFileName, const char* arrayName)
+{
+ // The method reads from a file a set of AliAlignObj which are
+ // then used to apply misalignments directly on the track
+ // space-points. The method is supposed to be used only for
+ // fast development and debugging of the alignment algorithms.
+ // Be careful not to use it in the case of 'real' alignment
+ // scenario since it will bias the results.
+
+ // Initialize the misalignment objects array
+ Int_t nLayers = AliAlignObj::kLastLayer - AliAlignObj::kFirstLayer;
+ fMisalignObjs = new AliAlignObj**[nLayers];
+ for (Int_t iLayer = 0; iLayer < (AliAlignObj::kLastLayer - AliAlignObj::kFirstLayer); iLayer++) {
+ fMisalignObjs[iLayer] = new AliAlignObj*[AliAlignObj::LayerSize(iLayer + AliAlignObj::kFirstLayer)];
+ for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer + AliAlignObj::kFirstLayer); iModule++)
+ fMisalignObjs[iLayer][iModule] = 0x0;
+ }
+
+ // Open the misliagnment file and load the array with
+ // misalignment objects
+ TFile* inFile = TFile::Open(misalignObjFileName,"READ");
+ if (!inFile || !inFile->IsOpen()) {
+ AliError(Form("Could not open misalignment file %s !",misalignObjFileName));
+ return kFALSE;
+ }
+
+ TClonesArray* array = ((TClonesArray*) inFile->Get(arrayName));
+ if (!array) {
+ AliError(Form("Could not find misalignment array %s in the file %s !",arrayName,misalignObjFileName));
+ inFile->Close();
+ return kFALSE;
+ }
+ inFile->Close();
+
+ // Store the misalignment objects for further usage
+ Int_t nObjs = array->GetEntriesFast();
+ AliAlignObj::ELayerID layerId; // volume layer
+ Int_t modId; // volume ID inside the layer
+ for(Int_t i=0; i<nObjs; i++)
+ {
+ AliAlignObj* alObj = (AliAlignObj*)array->UncheckedAt(i);
+ alObj->GetVolUID(layerId,modId);
+ fMisalignObjs[layerId-AliAlignObj::kFirstLayer][modId] = alObj;
+ }
+ return kTRUE;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff