Hi Rooters, If I run two macros: na49.C na49geometryfile.C I produce the file na49.root containing na49 geometry tree. Now I do : root [1] TFile* file = new TFile("na49.root"); root [2] TGeometry* g = gROOT->FindObject("na49"); root [3] g (class TGeometry*)0x871eee0 root [4] TGeometry* g1 = (TGeometry*)g->Clone(); root [5] g1->SetName("na49_1"); root [11] { end with '}'> for ( int i=0; i<gROOT->GetListOfGeometries()->GetSize(); i++) { end with '}'> cout << " Object name " << gROOT->GetListOfGeometries()->At(i)->GetName() << endl; end with '}'> } end with '}'> } Object name na49_1 I thought that I should get two objects with names 'na49' and 'na49_1' but apparently only the cloned survived. Moreover object 'g' now is corrupted: g->GetName() produces seg. violation. Is that an expected behaviour for the Clone() method or I am missing something regards, Dmitri Litvintse /----------------------------------------------------------\ | Tel: (630) 840 5005 | | FAX: (630) 840 2968 | | office: 169-E CDF Trailers | | E-mail: litvinse@fnal.gov | \----------------------------------------------------------/
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