Hi Ilektra, The g2root utility only reads the geometrical part of the zebra file, ignoring all the rest. The tracks in TGeo are user-defined objects meant to visualize/animate events or parts of events produced by a simulation/reconstruction program. TGeo is intended to work togeather with G3, G4 and FLUKA as their geometry navigation driver and the TGeo tracks will provide some basic support to visualize what is happening there. Of course it would be nice to be able to do G3 tracks conversion to TGeo format starting from JXYZ, so anyone is welcome to modify g2root to do this. Regards, Andrei Ilektra A Christidi wrote: > Hello > I finally managed to import the whole detector in ROOT and draw it > properly (thanks! :o) ). I'm trying to do the same with tracks and hits, > but it doesn't work: I save the JXYZ structure in the same zebra file as > MATE, VOLU, etc. Then I g2root it, which seems to work ok - here is the > output: > > > ************** Directory ===> //LUN1 <=== > Created 030811/1848 Modified 030811/1849 > ===> List of objects > OBJECT VERSION CYCLE DATE/TIME NDATA > MATE 1 1 030811/1848 109567 > PART 1 1 030811/1848 1745 > ROTM 1 1 030811/1848 365 > RUNG 1 1 030811/1848 47 > SETS 1 1 030811/1848 3403 > TMED 1 1 030811/1848 8542 > VOLU 1 1 030811/1848 130410 > JXYZ 1 1 030811/1849 172486 > JXYZ 2 1 030811/1849 41854 > JXYZ 3 1 030811/1849 436224 > JXYZ 5 1 030811/1849 19991 > JXYZ 9 1 030811/1849 94382 > Number of records = 997 Number of megawords = 1 + 20040 words > Per cent of directory quota used = 99.700 > Per cent of file used = 99.700 > Blocking factor = 99.813 > In g2rin, iquest(13)= 75 > after rzink, ikey= 1iquest(1)= 0 > trying to read:MATE > after rzink, ikey= 2iquest(1)= 0 > trying to read:PART > after rzink, ikey= 3iquest(1)= 0 > trying to read:ROTM > after rzink, ikey= 4iquest(1)= 0 > trying to read:RUNG > after rzink, ikey= 5iquest(1)= 0 > trying to read:SETS > after rzink, ikey= 6iquest(1)= 0 > trying to read:TMED > after rzink, ikey= 7iquest(1)= 0 > trying to read:VOLU > after rzink, ikey= 8iquest(1)= 0 > trying to read:JXYZ > after rzink, ikey= 9iquest(1)= 0 > trying to read:JXYZ > after rzink, ikey= 10iquest(1)= 0 > trying to read:JXYZ > after rzink, ikey= 11iquest(1)= 0 > trying to read:JXYZ > after rzink, ikey= 12iquest(1)= 0 > trying to read:JXYZ > after rzink, ikey= 13iquest(1)= 1 > nkeys= 12 nwkey= 2 > nvolum= 185 jvolum= 3872631 Division volumePRM1 Division volumeSCY5 > Division volumeSCX1 > Division volumeSCU1 > Division volumeSCY1 > Division volumeSCX3 > Division volumeSCU3 > Division volumeSCY3 > Division volumePRM2 > Division volumeSCY6 > Division volumeSCX2 > Division volumeSCU2 > Division volumeSCY2 > Division volumeSCX4 > Division volumeSCU4 > Division volumeSCY4 > GEANT file: kopio_mc_19.rz converted to ROOT macro: kopio_mc_19.C > > > but when I display my geometry in the TBrowser, the tracks folder is > empty and when I try to draw them there is no response. What am I doing > wrong? > I saved the hits separatelly in another zebra file, but this one core > dumped when I tried to g2root it. Is there any tool in ROOT to handle > GEANT3 HITS strucures (without the intermediate step of filling an ntuple, > converting it into a TTree... etc), or not yet? > > Thank you > > Ilektra Christidi > >
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