1 void MakeITSResMisAlignment(){
2 // Create TClonesArray of residual misalignment objects for ITS
4 TClonesArray *array = new TClonesArray("AliAlignObjParams",4000);
5 TClonesArray &alobj = *array;
6 const char* macroname = "MakeITSResMisAlignment.C";
8 // Activate CDB storage and load geometry from CDB
9 AliCDBManager* cdb = AliCDBManager::Instance();
10 if(!cdb->IsDefaultStorageSet()) cdb->SetDefaultStorage("local://$ALICE_ROOT");
13 AliCDBStorage* storage;
15 if( TString(gSystem->Getenv("TOCDB")) == TString("kTRUE") ){
16 TString Storage = gSystem->Getenv("STORAGE");
17 if(!Storage.BeginsWith("local://") && !Storage.BeginsWith("alien://")) {
18 Error(macroname,"STORAGE variable set to %s is not valid. Exiting\n",Storage.Data());
21 storage = cdb->GetStorage(Storage.Data());
23 Error(macroname,"Unable to open storage %s\n",Storage.Data());
26 AliCDBPath path("GRP","Geometry","Data");
27 AliCDBEntry *entry = storage->Get(path.GetPath(),cdb->GetRun());
28 if(!entry) Fatal(macroname,"Could not get the specified CDB entry!");
30 TGeoManager* geom = (TGeoManager*) entry->GetObject();
31 AliGeomManager::SetGeometry(geom);
33 AliGeomManager::LoadGeometry(); //load geom from default CDB storage
36 Double_t globalZ = 0.005; // in cm, = 50 microns
37 Double_t resFact = 0.7;
38 Double_t spdXY = 0.0015*resFact;
39 Double_t sddXYZ = 0.0030*resFact;
40 Double_t ssdXY = 0.0020*resFact;
43 Double_t spdZ = 0.002;
44 Double_t ssdZ = 0.010;
46 TRandom *rnd = new TRandom(65416087);
48 Double_t dx=0., dy=0., dz=0., dpsi=0., dtheta=0., dphi=0.;
49 AliGeomManager::ELayerID iLayer = AliGeomManager::kInvalidLayer;
53 new(alobj[j++]) AliAlignObjParams("ITS", 0, dx, dy, globalZ, dpsi, dtheta, dphi, kTRUE);
54 AliAlignObjParams* its_alobj = (AliAlignObjParams*) array->UncheckedAt(0);
55 its_alobj->ApplyToGeometry();
58 for ( Int_t l = AliGeomManager::kSPD1; l <= AliGeomManager::kSSD2; l++) {
60 printf("%i modules in layer %i\n", AliGeomManager::LayerSize(l), l);
61 for (Int_t iModule = 0; iModule < AliGeomManager::LayerSize(l); iModule++) {
63 dpsi = rnd->Gaus(0., rot);
64 dtheta = rnd->Gaus(0., rot);
65 dphi = rnd->Gaus(0., rot);
67 iLayer = AliGeomManager::kInvalidLayer;
71 iLayer = AliGeomManager::kSPD1;
72 dx = rnd->Gaus(0., spdXY);
73 dy = rnd->Gaus(0., spdXY);
74 dz = rnd->Gaus(0., spdZ);
77 iLayer = AliGeomManager::kSPD2;
78 dx = rnd->Gaus(0., spdXY);
79 dy = rnd->Gaus(0., spdXY);
80 dz = rnd->Gaus(0., spdZ);
83 iLayer = AliGeomManager::kSDD1;
84 dx = rnd->Gaus(0., sddXYZ);
85 dy = rnd->Gaus(0., sddXYZ);
86 dz = rnd->Gaus(0., sddXYZ);
89 iLayer = AliGeomManager::kSDD2;
90 dx = rnd->Gaus(0., sddXYZ);
91 dy = rnd->Gaus(0., sddXYZ);
92 dz = rnd->Gaus(0., sddXYZ);
95 iLayer = AliGeomManager::kSSD1;
96 dx = rnd->Gaus(0., ssdXY);
97 dy = rnd->Gaus(0., ssdXY);
98 dz = rnd->Gaus(0., ssdZ);
101 iLayer = AliGeomManager::kSSD2;
102 dx = rnd->Gaus(0., ssdXY);
103 dy = rnd->Gaus(0., ssdXY);
104 dz = rnd->Gaus(0., ssdZ);
106 default: Printf("Wrong layer index in ITS (%d) !",l);
108 UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,iModule);
109 const char *symname = AliGeomManager::SymName(volid);
111 new(alobj[j]) AliAlignObjParams(symname, volid, dx, dy, dz, dpsi, dtheta, dphi, kFALSE);
117 if( TString(gSystem->Getenv("TOCDB")) != TString("kTRUE") ){
119 const char* filename = "ITSresidualMisalignment.root";
120 TFile f(filename,"RECREATE");
122 Error(macroname,"cannot open file for output\n");
125 Info(macroname,"Saving alignment objects to the file %s", filename);
127 f.WriteObject(array,"ITSAlignObjs","kSingleKey");
130 // save in CDB storage
131 AliCDBMetaData *md= new AliCDBMetaData();
132 md->SetResponsible("Ludovic Gaudichet");
133 md->SetComment("Alignment objects with actual ITS misalignment");
134 md->SetAliRootVersion(gSystem->Getenv("ARVERSION"));
135 AliCDBId id("ITS/Align/Data",0,AliCDBRunRange::Infinity());
136 storage->Put(array,id, md);