Hi Parker, The "Getting Started With ROOT" document is out of date, and because it was a precursor to the ROOT User's Guide, it is not maintained. The Users's Guide is frequently updated. The most current version is at: http://root.cern.ch/root/RootDoc.html and we are working on the updates for ROOT 3.1. Suzanne Panacek ----- Original Message ----- From: "Parker Wittman" <iu_pw@hotmail.com> To: <roottalk@pcroot.cern.ch> Sent: Tuesday, May 22, 2001 11:16 AM Subject: [ROOT] trouble with TTreeViewer > Gracious Rooters, > > I am a very new ROOT user working my way through a tutorial ("Getting > Started With ROOT") and I am having huge difficulties in the section dealing > with the TTree Viewer, for a can't seem to open it up. > > In one version of the tutorial I am instructed to type in the following > command ("h21" is my sample tree): > > tv=new TTreeViewer("h21"); > > Upon doing so, the following error appeared and not the TTree Viewer: > > Error: No symbol TTreeViewer in current scope > FILE:/tmp/fileeYDORx_cint Line:1 > Error: type TTreeViewer not defined FILE:/tmp/fileeYDORx_cint LINE:1 > Warning: Automatic variable tv allocated in global scope > FILE:/tmp/fileeYDORx_cint LINE:1 > Error: Undeclared variable tv FILE:/tmp/fileeYDORx_cint LINE:1 > *** Interpreter error recovered *** > > > So, I found a different version of the same tutorial which gave a different > command for opening TTree Viewer: > > h21->StartViewer(); > > When I entered this I got a seg violation: > > *** Break *** segmentation violation > Root> > > I also tried opening the TTree Viewer by right clicking on the tree ("h21") > in the object browser and selecting "StartViewer" from the menu... this also > produced a segmentation violation. > > Since I am just learning ROOT I really have no idea how to approach this > problem... What am I doing wrong and how can I get through this? > > (By the way, I am running version 3.00/06) > > Regards, > Parker > _________________________________________________________________ > Get your FREE download of MSN Explorer at http://explorer.msn.com > >
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