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Topics covering object persistency, persistency management, and databases are discussed here.

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test persistency HN, please ignore.  by Terry Hung <Terry Hung>,   Aug 04, 18:52 test persistency HN, please ignore. -- Terry Hung - Stanford Linear Accelerator Center

Test HyperNews, please ignore  by Terry Hung <Terry Hung>,   Aug 04, 18:50 test, please ignore.

Root file creation  by Kliakhandler Kosta <Kliakhandler Kosta>,   Jul 20, 16:41 Hello, I have not found many examples of creating a root file with data, and the one I found (Persistency 01) does not compile for some reason (can't find the Txxx.h headers). Despite this, I have managed to create something which compiles and creates a file. However, The file is always 314 bytes long, no matter what I try to write out to it. I use something very similar to the RootIO class from the Persistency 01 example. I would like to write out hits, but I tried writing almost anything, including just a bunch of integers. Nothing works. I can provide the code if it would help diagnosis. Any ideas? Thanks.

STEP file import formats under Geant4 9.2?  by Mark Looper <Mark Looper>,   26 Mar, 2009 I have been trying to figure out how to use the new CAD file import capability in version 9.2, but the MEs I've talked to here don't recognize the file formats supported. Geant4 9.2 is supposed to be able to read STEP files, but the example given ($G4INSTALL/examples/extended/persistency/gdml/G02) doesn't use *.step or *.stp as the input file, but rather a pair of files with names of the form *.tree and *.geom. As I said, our SolidWorks users have never seen these; the README file calls them "STEP Tool files," so does that mean they are a (proprietary?) format put out by the commercial "STEP Tools" software (www.steptools.com)? Is there a way to translate a *.step file into such a file pair, preferably with some freeware app or SolidWorks add-on? Also, in DetectorConstruction.cc of that example I see that parser.ParseST returns a G4LogicalVolume that encloses the "hardware" and is assigned one material, with the "hardware" assigned another material as a daughter volume. In the example input files, there is a single daughter volume; can the input file contain more than one? If so, do I understand correctly that all daughter volumes will be assigned a single material (Aluminum in the example), so that I will have to specify other materials by hand? Thanks. 1 Re: STEP file import formats under Geant4 9.2?   (John Watts - 27 Mar, 2009) Re: STEP file import formats under Geant4 9.2?   (Mark Looper - 06 May, 2009) Re: STEP file import formats under Geant4 9.2?   (Mark Looper - 06 May, 2009)

Problems with GDML in Geant4.9.2  by John Watts <John Watts>,   11 Feb, 2009 I have been attempting to modify my code to use the GDML routines in geant4.9.2. Previously I used the interface in GDML_2_10_0. I have found a couple of problems. 1. The VolumeAuxiliaryinformation map if owned by the G4GDMLReadStructure routine rather then the G4GDMLParser. Each time you read a new module file it is reset. 2. Matrix don't seem to work. I tried the matirx example, matricesandloop.gdml in the load_gdml of examples/extended/persistancy/gdml/G01. I got syntax errors. 1 Re: Problems with GDML in Geant4.9.2   (Gabriele Cosmo - 17 Feb, 2009) 1 Re: Problems with GDML in Geant4.9.2 Matrix issue   (John Watts - 17 Feb, 2009) 2 Re: Problems with GDML in Geant4.9.2 VolumeAuxilaryInformation issue   (John Watts - 17 Feb, 2009) 3 Re: Problems with GDML in Geant4.9.2   (Gabriele Cosmo - 18 Feb, 2009)

problems adding TH1F histogram to the persistency example  by <marco.serra@roma1.infn.it>,   27 Feb, 2007 Hello, I am trying to create a 1D histogram in the persistency example (Geant-4.8.2 / root_v5.14.00b / clhep-2.0.3.1) adding a simple line TH1F* h1 = new TH1F("hist1","CalHit",100,0,100.); to the "readHits.cc" class. But when I try to create an executable I have the error : undefined reference to `TH1F::TH1F(char const*, char const*, int, double, double)' collect2: ld returned 1 exit status make: *** [dictionary] Error 1 I have added #include TH1F.h in readHits.cc but it does not help. Note that for example the creation of a new file via: TFile* hf = new TFile("Histo.root", "RECREATE"); works fine. With older versions of the persistency example (up to Geant 4.8.0.p01) it was always possible to add histrograms, but now the example was rewritten (and the makefile changed a lot) and I am not able anymore to obtain plots. Could someone help me? thanks, regards Marco Serra 1 Re: problems adding TH1F histogram to the persistency example   (marco.serra@roma1.infn.it - 27 Feb, 2007)

How to store the fluence distribution and the energy spectra?  Keywords: save, energy fluence ,particle fluence ,momentum distribution by Shahrokh <Shahrokh>,   21 Dec, 2005 Hi, What can I store and save the information of energy fluence, particle fluence and the momentum distribution of particles on a plane? for example, the particle is electron produced by interaction of photon source with material.) please help me. Thanks a lot. Shahrokh

Writing digis with rootio  by Emanuele Leonardi <Emanuele Leonardi>,   14 Oct, 2005 I am adapting the structure which in examples/extended/perisitency writes hits to a root file so that I can also write digis. I modified the Pers01CalorHit.rootio file in this way: @------------------------------------------------------------------@ set class_name TileCalDigi set collection_class TileCalDigitsCollection set collection_base_class G4VDigiCollection set array_io_base G4VPDigitsCollectionIO set catalog G4DCIOentryT #set sdet_name TileCalScintSD set add_header @class_name@.hh .. set member @int@ PMTNumber; @float@ Photoel; @int@ ROValue; @int@ Overflow; .. set constructor @class_root@(@class_name@* digi) { PMTNumber = digi->GetPMTNumber(); Photoel = digi->GetPhotoel(); ROValue = digi->GetROValue(); Overflow = digi->GetOverflow(); } .. set method @class_name@* @make_transient@() { @class_name@* digi = new @class_name@(); digi->SetPMTNumber(PMTNumber); digi->SetPhotoel(Photoel); digi->SetROValue(ROValue); if (Overflow == 0) { digi->ResetOverflow(); } else { digi->SetOverflow(); } return digi; } .. @------------------------------------------------------------------@ The problem is that I have no idea of what to use as sdet_name and the g4rootio script complains that it is not defined: g4rootio: Error - sensitive detctor name is not specified. Stop. What should I use as "sensitive detector" for digis? Thanks Emanuele Leonardi

structure of g4root files  Keywords: structure of g4root files by Tomasz Wachala <twachala@wp.pl>,   17 Jan, 2005 I need some information about g4root files generated by G4Glacier.How can I find it? How can I read these files under Root?Do I need to install any additional libraries for Root?

Executable module of G4PersEx01  Keywords: persistency by Ed Tatar <tatar@physics.isu.edu>,   15 Mar, 2004 Dear Colleagues, I am trying to build PersEx01 from geant4_6.0.p01. Making libG4ROOTIO.so is successfull, however I get warnings like: ------------------------------------------------- ... src/G4RootTransManager.cc: In member function `virtual bool G4RootTransManager::SelectWriteFile(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::basic_string<char, std::char_traits<char>, std::allocator<char> >)': src/G4RootTransManager.cc:69: warning: unused parameter `std::string obj' ... ------------------------------------------------- The problem I have is in making the executable module. The compiler gives an error after a long list of warnings: ------------------------------------------------- ... /home/etatar/bin/root_v3.10.02/root/cint/include/float.h:18:1: warning: "FLT_MIN " redefined In file included from /home/etatar/g4/geant4.6.0.p01/include/globals.hh:95, from /home/etatar/g4/geant4.6.0.p01/include/G4VHit.hh:31, from /home/etatar/g4/geant4.6.0.p01/examples/extended/persisten cy/PersEx01/include/Pers01CalorHit.hh:35, from Pers01CalorHitRoot.hh:10, from /tmp/fileOj4byr_rootcint.h:1, from /tmp/Ga3A8n_cint.cxx:1: /home/etatar/g4/geant4.6.0.p01/include/templates.hh:86:1: warning: this is the l ocation of the previous definition gmake: *** [/home/etatar/g4/geant4.6.0.p01/examples/extended/persistency/rootio/ tmp/Linux-g++/G4PersEx01/G4PersEx01Dict.cc] Error 134 ------------------------------------------------- If I execute the GNUmakefilefile again, the errors are ignored and libG4PersEx01.so and G4PersEx01 are created. Here is the end of the message I get when I run the ./run script: ------------------------------------------------- ---> End of event: 18 Absorber: total energy: 30.9549 MeV total track length: 2.00985 cm Gap: total energy: 67.0609 keV total track length: 75.2977 mum 5 hits are stored in Pers01CalorHitsCollection. Hit Collection I/O manager "CalorSD" not found! G4HitRootIO::Store(): Hit Collection I/O manager is not registered for detector: 'CalorSD', collection name: 'CalCollection'. G4PersistencyManager::Store(G4Event) - Transaction aborted. ---> Begin of event: 19 --------- Ranecu engine status --------- Initial seed (index) = 0 Current couple of seeds = 1379718041, 189997860 ---------------------------------------- ---> End of event: 19 Absorber: total energy: 30.8041 MeV total track length: 2.13951 cm Gap: total energy: 217.855 keV total track length: 370.671 mum 5 hits are stored in Pers01CalorHitsCollection. Hit Collection I/O manager "CalorSD" not found! G4HitRootIO::Store(): Hit Collection I/O manager is not registered for detector: 'CalorSD', collection name: 'CalCollection'. G4PersistencyManager::Store(G4Event) - Transaction aborted. Graphics systems deleted. Visualization Manager deleting... *** Break *** segmentation violation Generating stack trace... 0x41435217 in G4ParticleDefinition::~G4ParticleDefinition [not-in-charge]() + 0x3b from /home/etatar/g4/geant4.6.0.p01/lib/Linux-g++/libG4particles.so 0x4144b5a7 in <unknown> from /home/etatar/g4/geant4.6.0.p01/lib/Linux-g++/libG4particles.so 0x4144b606 in <unknown> from /home/etatar/g4/geant4.6.0.p01/lib/Linux-g++/libG4particles.so 0x41421f6b in <unknown> from /home/etatar/g4/geant4.6.0.p01/lib/Linux-g++/libG4particles.so 0x414d8066 in <unknown> from /home/etatar/g4/geant4.6.0.p01/lib/Linux-g++/libG4particles.so 0x4000ce94 in <unknown> from /lib/ld-linux.so.2 0x43dc3e10 in exit + 0x70 from /lib/tls/libc.so.6 0x43daf768 in <unknown> from /lib/tls/libc.so.6 0x0804ecb1 in G4VUserPhysicsList::RetrievePhysicsTable(G4ParticleDefinition*, G4String const&, bool) + 0x65 from ../rootio/bin/Linux-g++/G4PersEx01 ./run: line 3: 889 Aborted ../rootio/bin/Linux-g++/G4PersEx01 run.mac ------------------------------------------------- I am using gcc3.2 on Linux 9. The enviromental variables seem to be correctly defined. Could somebody help us? With best regards, Eddie Tatar Idaho State University 1 Re: Executable module of G4PersEx01   (Gabriele Cosmo - 24 Mar, 2004)

Novice user question  by ptr <ptr@msu.dubna.ru>,   26 Jun, 2003 making executable PersEx01]$ make i've got such errors: /********************* Generating dictionary /home/vlasov/CHARME/GEANT/examples/extended/persistency/rootio/tmp/Linux-g++/G4PersEx01/G4PersEx01Dict.cc ... Error: assignment to 101325*hep_pascalstaticconst HepDoubleampere FILE:/home/vlasov/CHARME/GEANT/include/SystemOfUnits.h LINE:218 Error: assignment to 100000*hep_pascalstaticconst HepDoubleatmosphere FILE:/home/vlasov/CHARME/GEANT/include/SystemOfUnits.h LINE:218 Error: Symbol ampere is not defined in current scope FILE:/home/vlasov/CHARME/GEANT/include/SystemOfUnits.h LINE:219 Error: Symbol ampere is not defined in current scope FILE:/home/vlasov/CHARME/GEANT/include/SystemOfUnits.h LINE:220 Error: Symbol ampere is not defined in current scope FILE:/home/vlasov/CHARME/GEANT/include/SystemOfUnits.h LINE:221 Error: Symbol ampere is not defined in current scope FILE:/home/vlasov/CHARME/GEANT/include/SystemOfUnits.h LINE:233 Error: operator '/' divided by zero FILE:/home/vlasov/CHARME/GEANT/include/SystemOfUnits.h LINE:233 Error: Symbol ampere is not defined in current scope FILE:/home/vlasov/CHARME/GEANT/include/SystemOfUnits.h LINE:260 Error: operator '/' divided by zero FILE:/home/vlasov/CHARME/GEANT/include/SystemOfUnits.h LINE:260 *********************/ What does'em means? by the way i've sucsessfuly built a libG4ROOTIO.so library

ROOT/IO in Geant4.5.0  Keywords: ROOT IO in Geant4 by Huaimin Liu <Huaimin Liu>,   26 Feb, 2003 Hi, I am trying to use root/io in Geant4.5.0, so I just start with an example provided by G4. I followed steps in README. The first step is ok, libG4ROOTIO.so was successfully built. When I am making my executable, libG4PersEx01.so was created without any problem, but some error messages (sse below) came out at the linking stage /rootio/lib/Linux-g++/libG4ROOIO.so: undefined reference to `TObject::Browse(TBrowser*)' ...... undefined reference to `TFile::TFile[in-charge] so the executable could not be created. Can anyone help? I am using RedHat7.2 with gcc3.2 and a new G4 patch, I think my ROOT environment was correctly set. Thank you. --Huaimin Liu 1 Re: ROOT/IO in Geant4.5.0   (Youhei Morita - 12 Mar, 2003)

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