From: Rene Brun <Rene.Brun@cern.ch> Subject: Re: [ROOT] Can not display using tree->StartViewer(); Date: Tue, 24 Sep 2002 17:27:10 +0200 (METDST) Thank you for quick reply. > Did you have any problem when compiling/linking on your FreeBSD system? Sorry, I do not know if there was problem or not when compiling/linking. But, I can complile and link my g++ prgram with ROOT libraries. > Did you check that $ROOTSYS/lib/libTreeViewer.so exists? Yes, it exists. > if yes, can you do the following: > root > gSystem->Load("libTreeViewer"); > root > .class TTreeViewer root [0] gSystem->Load("libTreeViewer"); dlopen error: /mnt/home/01a/harufumi/local/root/lib/./libTreeViewer.so: Undefined symbol "__ti9TGLVEntry" Load Error: Failed to load Dynamic link library /mnt/home/01a/harufumi/local/root/lib/./libTreeViewer.so *** Interpreter error recovered *** Also I checked if other libraries could be loaded using gSystem->Load(). As a result, I got the same error message when loading the following libralires. libGeomPainter.so libRGL.so libTable.so libX3d.so > If all the above works, can you try: > root > gSystem->Load("libTreeViewer"); > root > TFile *f = new TFile("tree1.root"); > root > TTree *t = (TTree*)f->Get("t1"); > root > t->StartViewer(); Sorry, As I got the same error messages, I could not test this. > On Tue, 24 Sep 2002, Harufumi TSUCHIYA wrote: > > > Hello ROOTers. > > > > I would like to use treeviewer. But, I could not succeeded in > > viewing. > > I did following ways. > > > > In $ROOTSYS/tutrials > > root [0] TFile *f = new TFile("tree1.root"); > > root [1] TTree *t = (TTree*)f->Get("t1"); > > root [2] t->StartViewer(); > > dlopen error: /home/01a/harufumi/local/root/lib/libTreeViewer.so: Undefined symbol "__ti9TGLVEntry" > > Load Error: Failed to load Dynamic link library /home/01a/harufumi/local/root/lib/libTreeViewer.so > > Error in <TPluginHandler::SetupCallEnv>: class TTreeViewer not found in plugin TreeViewer > > *** Interpreter error recovered *** > > > > I got error messages like this. > > I also tested my ROOT files which contains tree object. But > > I falied to view tree, getting the same error messages. > > > > I use ROOT v 3.03.09 which was complied from source on FreeBSD 4.6.2-RELEASE > > using g++ 2.95.3 > > > > Please give me any suggestions. > > > > Harufumi Tsuchiya > > >
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