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18 Revision 1.1 2007/10/01 14:12:45 pchrist
19 Class creating the aligmnent object fro the surveyor measurements.
24 // Creates the SSD align object
27 #include "Riostream.h"
30 #include "TClonesArray.h"
31 #include "TGeoManager.h"
32 #include "TGeoMatrix.h"
33 #include "TGeoPhysicalNode.h"
35 #include "AliITSSurveyToAlignSSD.h"
36 #include "AliSurveyObj.h"
37 #include "AliSurveyPoint.h"
38 #include "AliAlignObjParams.h"
42 #include "AliCDBManager.h"
43 #include "AliCDBEntry.h"
44 #include "AliCDBStorage.h"
46 ClassImp(AliITSSurveyToAlignSSD)
48 //________________________________________________________________________
49 AliITSSurveyToAlignSSD::AliITSSurveyToAlignSSD() :
55 fSSDAlignObj(new TClonesArray("AliAlignObjParams",100)),
59 // default constructor
63 //________________________________________________________________________
64 AliITSSurveyToAlignSSD::AliITSSurveyToAlignSSD(Int_t /* run */, Int_t reportloc, Int_t reportglob) :
70 fSSDAlignObj(new TClonesArray("AliAlignObjParams",100)),
74 // constructor - defines data files
76 fFileLoc = new Char_t[80];
77 fFileGlob = new Char_t[80];
79 sprintf(path,gSystem->Getenv("ALICE_ROOT"));
81 sprintf(fFileLoc,"%s/ITS/Survey_SSD_%d.txt",path,reportloc);
82 sprintf(fFileGlob,"%s/ITS/Survey_SSD_%d.txt",path,reportglob);
86 //_________________________________________________________________________
87 AliITSSurveyToAlignSSD::AliITSSurveyToAlignSSD(const AliITSSurveyToAlignSSD &align) :
93 fSSDAlignObj(new TClonesArray("AliAlignObjParams",100)),
97 // copy constructor - dummy
99 fDebug = align.fDebug;
102 //__________________________________________________________________________
103 AliITSSurveyToAlignSSD & AliITSSurveyToAlignSSD::operator =(const AliITSSurveyToAlignSSD & align) {
105 // assignment operator - dummy
107 fDebug = align.fDebug;
111 //__________________________________________________________________________
112 AliITSSurveyToAlignSSD::~AliITSSurveyToAlignSSD() {
116 if(fSurveyPoints) delete fSurveyPoints;
117 if(fSSDAlignObj) delete fSSDAlignObj;
118 if(fSSDAlignObjParam) delete fSSDAlignObjParam;
121 //______________________________________________________________________
122 void AliITSSurveyToAlignSSD::Run() {
124 // runs the full chain
127 Bool_t flag = LoadSurveyData();
129 cout<<"Missing points"<<endl;
137 //__________________________________________________________________________
138 Bool_t AliITSSurveyToAlignSSD::LoadSurveyData() {
140 // for a time being it loads from the local file the surveyed point
141 // and has the ideal points hardwired. I am waiting until Ricardo
145 //Load survey data from the local file
146 AliSurveyObj * s1 = new AliSurveyObj();
147 if(s1->FillFromLocalFile(fFileGlob))
148 fSurveyPoints = s1->GetData();
152 cout<<"Number of SSD survey points: "<<fSurveyPoints->GetEntries()<<endl;
157 //_______________________________________________________________________
158 void AliITSSurveyToAlignSSD::CreateAlignObj(){
160 // This method creates AliAlignObj and fills it with Euler angles
161 // and shifts. The units are degrees and cm.
163 TClonesArray &alobj = *fSSDAlignObj;
165 //load ideal geometry from the OCDB
166 AliCDBManager *cdb = AliCDBManager::Instance();
167 cdb->SetDefaultStorage("local://$ALICE_ROOT");
169 AliCDBEntry* entry = cdb->Get("GRP/Geometry/Data");
170 AliGeomManager::SetGeometry(gGeoManager);
172 AliSurveyPoint* pt = 0;
174 TGeoPNEntry* pne = 0;
179 Int_t ilayer, imodule;
181 for(Int_t imod = 0; imod < fSurveyPoints->GetEntries(); imod++) {
182 pt = (AliSurveyPoint*) fSurveyPoints->At(imod);
188 ilayer = (imod < 748) ? AliGeomManager::kSSD1 : AliGeomManager::kSSD2;
189 imodule = (imod < 748) ? imod : imod - 748;
191 uid = AliGeomManager::LayerToVolUID(ilayer,imodule);
192 symname = AliGeomManager::SymName(uid);
193 pne = gGeoManager->GetAlignableEntryByUID(uid);
194 hm = pne->GetGlobalOrig();
195 tr = hm->GetTranslation();
197 //Printf("symname %s", symname);
198 //Printf("x,y,z from survey: %f %f %f", sx, sy, sz);
199 //Printf("x,y,z from ideal : %f %f %f", tr[0], tr[1], tr[2]);
201 new(alobj[imod]) AliAlignObjParams(symname, uid, sx-tr[0], sy-tr[1], sz-tr[2], 0., 0., 0., kTRUE);
207 //_________________________________________________________________________
208 void AliITSSurveyToAlignSSD::StoreAlignObj(){
209 // Stores the TClonesArray of AliAlignObj in
210 // $ALICE_ROOT/ITS/Align/Data/SSDfromSurvey.root
211 // In a later version these objects will be merged
212 // with the SDD ones and will be put in the OCDB
213 const char* filename = "$ALICE_ROOT/ITS/Align/Data/SSDfromSurvey.root";
214 TFile *f = TFile::Open(filename,"RECREATE");
216 Error(filename,"cannot open file for output\n");
219 cout<<"Saving alignment objects to the file "<<filename<<endl;
221 f->WriteObject(fSSDAlignObj,"SSDAlignObjs","kSingleKey");